UNIVEC INC
SB-2, 1997-01-22
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<PAGE>


   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 22, 1997 
                                                         REGISTRATION NO. 333- 


                      SECURITIES AND EXCHANGE COMMISSION 
                            WASHINGTON, D.C. 20549 
                                    ------ 
                                  FORM SB-2 
                            REGISTRATION STATEMENT 
                                    UNDER 
                          THE SECURITIES ACT OF 1933 
                                 UNIVEC, INC. 
                (Name of Small Business Issuer in Its Charter) 

<TABLE>
<S>                                                     <C>                         <C>        
              Delaware                                  3841                        11-3163455 
    (State or other jurisdiction                  (Primary Standard              (I.R.S. Employer 
 of incorporation or organization)            Industrial Classification         Identification No.) 
                                                    Code Number)               
</TABLE>

                             999 Franklin Avenue 
                         Garden City, New York 11530 
                          Telephone: (516) 294-1000 
                          Telecopier: (516) 739-3343 
        (Address and telephone number of principal executive offices) 
                                    ------ 
                               Joel Schoenfeld 
              Chairman of the Board and Chief Executive Officer 
                                 UNIVEC, Inc. 
                             999 Franklin Avenue 
                         Garden City, New York 11530 
                          Telephone: (516) 294-1000 
                          Telecopier: (516) 739-3343 
          (Name, address and telephone number of agent for service) 
                                    ------ 
                                  Copies to: 
   Jack Becker, Esq.                     Jay M. Kaplowitz, Esq. 
   Snow Becker Krauss P.C.               Arthur S. Marcus, Esq. 
   605 Third Avenue                      Gersten, Savage, Kaplowitz, Fredericks 
   New York, New York 10158-0125          & Curtin, LLP 
   Telephone: (212) 687-3860             101 East 52nd Street 
   Telecopier: (212) 949-7052            New York, New York 10022-6018 
                                         Telephone: (212) 752-9700 
                                         Telecopier: (212) 980-5192 
                                     ------
   Approximate Date of Proposed Sale to the Public: As soon as practicable 
after the effective date of this registration statement. 

   If this Form is filed to register additional securities for an offering 
pursuant to Rule 462(b) under the Securities Act, please check the following 
box and list the Securities Act registration statement number of the earlier 
effective registration statement for the same offering. / / 

   If this Form is a post-effective amendment filed pursuant to Rule 462(c) 
under the Securities Act, check the following box and list the Securities Act 
registration statement number of the earlier effective registration statement 
for the same offering. / /

   If delivery of the prospectus is expected to be made pursuant to Rule 434, 
please check the following box. / /

   If any of the securities on this Form are to be offered on a delayed or 
continuous basis pursuant to Rule 415 under the Securities Act, please check 
the following box. /X/ 
                                    ------ 

   The Registrant hereby amends this Registration Statement on such date or 
dates as may be necessary to delay its effective date until the Registrant 
shall file a further amendment which specifically states that this 
Registration Statement shall thereafter become effective in accordance with 
Section 8(a) of the Securities Act of 1933 or until the Registration 
Statement shall become effective on such date as the Securities and Exchange 
Commission, acting pursuant to said Section 8(a), may determine. 
<PAGE>
                       CALCULATION OF REGISTRATION FEE 
<TABLE>
<CAPTION>
===========================================================================================
     Title of Each 
        Class of                        Proposed Maximum  Proposed Maximum 
    Securities to be      Amount to be    Offering Price  Aggregate Offer-    Amount of 
       Registered          Registered    Per Security(1)    ing Price(1)   Registration Fee 
- --------------------------------------------------------------------------------------------
<S>                      <C>             <C>              <C>              <C>
Common Stock, $0.001 par 
value ("Common Stock")    1,725,000(2)          $3.50        $6,037,500       $1,829.55 
- --------------------------------------------------------------------------------------------
Redeemable Common 
 Stock Purchase 
 Warrants ("Warrants")    2,587,500(3)           $.10          $258,750          $78.41 
- --------------------------------------------------------------------------------------------
Common Stock issuable 
 upon exercise of 
 Warrants  ............   2,587,500(4)          $4.50       $11,643,750       $3,528.41 
- --------------------------------------------------------------------------------------------
Underwriter's Warrants 
 to purchase shares of 
 Common Stock  ........     150,000          $.000025             $3.75           (5) 
- --------------------------------------------------------------------------------------------
Underwriter's Warrants 
 to purchase Warrants       225,000          $.000025             $6.25           (5) 
- --------------------------------------------------------------------------------------------
Common Stock issuable 
 upon exercise of 
 Underwriter's 
 Warrants  ............     150,000(4)          $4.20          $630,000         $190.91 
- --------------------------------------------------------------------------------------------
Warrants issuable upon 
 exercise of 
 Underwriter's 
 Warrants  ............     225,000              $.12           $27,000           $8.18 
- --------------------------------------------------------------------------------------------
Common Stock issuable 
 upon exercise of 
 Warrants underlying 
 Underwriter's 
 Warrants  ............     225,000(4)          $4.50        $1,012,500         $306.81 
- --------------------------------------------------------------------------------------------
Redeemable Common 
 Stock Purchase 
 Warrants  ............   2,500,000(6)           $.10          $250,000          $75.76 
- --------------------------------------------------------------------------------------------
Common Stock  .........   2,500,000(4)(8)       $4.50(7)    $11,250,000       $3,409.09 
                             33,436(4)(9)       $3.50(7)       $117,026          $35.46 
- --------------------------------------------------------------------------------------------
Total Registration Fee  ..................................................    $9,462.58 
===========================================================================================
</TABLE>
(1) Estimated solely for the purpose of calculating the registration fee 
    pursuant to Rule 457 promulgated under the Securities Act of 1933. 

(2) Includes 225,000 shares of Common Stock which may be purchased by the 
    Underwriter to cover over- allotments, if any. 

(3) Includes 337,500 Warrants which may be purchased by the Underwriter to 
    cover over-allotments, if any. 

(4) Pursuant to Rule 416, there are also being registered such indeterminate 
    number of additional shares as may become issuable pursuant to the 
    anti-dilution provisions of the Warrants, the Underwriter's Warrants (and 
    the Warrants included therein), and the warrants and options owned by the 
    selling securityholders named herein. 

(5) Pursuant to Rule 457(g) promulgated under the Securities Act of 1933, no 
    filing fee is required. 

(6) Represents Redeemable Common Stock Warrants being registered for sale by 
    selling securityholders. 

(7) Calculated pursuant to Rule 457(g). 

(8) Represents 2,500,000 shares issuable upon exercise of Redeemable Common 
    Stock Purchase Warrants registered for sale by selling securityholders. 

(9) Represents 33,436 shares issuable upon exercise of certain options 
    registered for sale by a selling securityholder. 
<PAGE>
                               EXPLANATORY NOTE 

   This Registration Statement contains two forms of prospectus: (i) one to 
be used in connection with an offering by the Company of shares of Common 
Stock and Redeemable Common Stock Purchase Warrants (the "Prospectus") and 
(ii) one to be used in connection with the sale of Redeemable Common Stock 
Purchase Warrant and shares of Common Stock issuable upon exercise of those 
Redeemable Common Stock Purchase Warrants and outstanding options by certain 
selling securityholders (the "Selling Securityholder Prospectus"). The 
Prospectus and the Selling Securityholder Prospectus will be identical in all 
respects except for the alternate pages for the Selling Securityholder 
Prospectus included herein which are labeled "Alternate Page for Selling 
Securityholder Prospectus." 


                                     
<PAGE>
The information contained herein is subject to completion or amendment. A 
registration statement relating to these securities has been filed with the 
Securities and Exchange Commission. These securities may not be sold nor may 
offers to buy be accepted prior to the time the registration statement 
becomes effective. This prospectus shall not constitute an offer to sell or 
the solicitation of an offer to buy nor shall there be any sale of these 
securities in any State in which such offer, solicitation or sale would be 
unlawful prior to registration or qualification under the securities laws of 
any such State. 

    PRELIMINARY PROSPECTUS, SUBJECT TO COMPLETION, DATED JANUARY 22, 1997 
                                 UNIVEC, INC. 
                     1,500,000 SHARES OF COMMON STOCK AND 
             2,250,000 REDEEMABLE COMMON STOCK PURCHASE WARRANTS 

   This Prospectus relates to an offering (the "Offering") by UNIVEC, Inc. 
(the "Company") of 1,500,000 shares of common stock, par value $.001 per 
share (the "Common Stock"), and 2,250,000 redeemable common stock purchase 
warrants (the "Warrants") through Maidstone Financial, Inc. (the 
"Underwriter"). The shares of Common Stock and the Warrants offered hereby 
may be purchased separately and will be transferable separately after 
issuance. The Common Stock is being offered at $3.50 per share and the 
Warrants at $.10 per Warrant. 

   Each Warrant entitles the registered holder thereof to purchase one share 
of Common Stock at an exercise price of $4.50 per share, subject to 
adjustment in certain events, at any time during the period commencing 
__________, 1999 [two years after the date upon which the Registration 
Statement of which this Prospectus forms a part is declared effective by the 
Securities Exchange Commission (the "Effective Date")] and expiring on 
____________, 2002 [the fifth anniversary of the Effective Date]. The 
Warrants are subject to redemption by the Company at $.05 per Warrant at any 
time commencing _______________, 1999 [two years after the Effective Date] 
(with the prior written consent of the Underwriter), on not less than 30 days 
prior written notice to the holders of the Warrants, provided the closing bid 
price of the Common Stock had been at least $8.00 for 20 consecutive trading 
days ending on the third day prior to the date on which the Company gives 
notice of redemption. The Warrants will be exercisable until the close of 
business on the day immediately preceding the date fixed for redemption. The 
Company has applied for quotation of the Common Stock and the Warrants on The 
Nasdaq SmallCap Market under the trading symbols "UNVC" and "UNVCW", 
respectively. See "Description of Securities -- Warrants." 

   Prior to the Offering, there has been no public market for the Common 
Stock or Warrants, and there can be no assurance that any such market for the 
Common Stock or Warrants will develop after the closing of the Offering, or 
that, if developed, it will be sustained. The offering prices of the Common 
Stock and Warrants and the terms of the Warrants were established by 
negotiations between the Company and the Underwriter and do not necessarily 
bear any direct relationship to the Company's assets, earnings, book value 
per share or other generally accepted criteria of value. 

   The Company has registered for resale under a separate prospectus (the 
"Selling Securityholder Prospectus") as part of the Registration Statement 
warrants to purchase 2,500,000 shares of Common Stock (having terms identical 
to the warrants offered hereby) and the shares of Common Stock issuable upon 
exercise thereof, and 33,436 shares of Common Stock issuable upon exercise of 
options. The warrants were issued in connection with a bridge financing 
completed by the Company in December 1996. Prior to the Effective Date, each 
of the selling securityholders named in the Selling Securityholder Prospectus 
will enter into an agreement with the Underwriter not to sell or otherwise 
dispose of any securities of the Company for a period of 24 months following 
the Effective Date, without the prior written consent of the Underwriter. The 
Company will not receive any proceeds from the sale of the warrants or shares 
of Common Stock by the selling securityholders, but will receive the exercise 
price of the warrants and options exercised. See "Selling Securityholder 
Offering." 

   THE SECURITIES OFFERED HEREBY ARE SPECULATIVE AND INVOLVE A HIGH DEGREE OF 
RISK. ONLY INVESTORS WHO CAN BEAR THE RISK OF LOSS OF THEIR ENTIRE INVESTMENT 
SHOULD INVEST. FOR A DESCRIPTION OF CERTAIN RISKS REGARDING AN INVESTMENT IN 
THE COMPANY AND IMMEDIATE SUBSTANTIAL DILUTION, SEE "RISK FACTORS" COMMENCING 
ON PAGE 9 AND "DILUTION" AT PAGE 22. 
                                    ------ 
<PAGE>

   THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES 
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE 
COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR 
ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL 
OFFENSE. 

<TABLE>
<CAPTION>
===============================================================================
                                              Underwriting                              
                                  Price to    Discounts and   Proceeds to 
                                   Public    Commissions(1)   Company(2) 
- ------------------------------------------------------------------------------
<S>                                  <C>            <C>              <C>
Per Share ....................      $3.50          $.35          $3.15            
- ------------------------------------------------------------------------------
Per Warrant ..................       $.10          $.01           $.09 
- ------------------------------------------------------------------------------
Total(3)  ....................   $5,475,000     $547,500      $4,927,500 
==============================================================================
</TABLE>
                                                  (footnotes appear on page 3) 
                                    ------ 
                          MAIDSTONE FINANCIAL, INC. 
                                    ------ 
                 The date of this Prospectus is      , 1997. 


                                   
<PAGE>


   IN CONNECTION WITH THE OFFERING, THE UNDERWRITER MAY OVER-ALLOT OR EFFECT 
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK 
AND THE WARRANTS OFFERED HEREBY AT A LEVEL ABOVE THAT WHICH MIGHT OTHERWISE 
PREVAIL IN THE OPEN MARKET. SUCH STABILIZING, IF COMMENCED, MAY BE 
DISCONTINUED AT ANY TIME. 










                              [INSERT PICTURES] 










                                    ------ 

   UNIVEC(R), and R/ Ultra(R) are registered trademarks of the Company. All 
other trademarks appearing in this Prospectus are the property of their 
respective holders. 


                                      2 
<PAGE>


(1) Does not include additional compensation to the Underwriter consisting of 
    (i) a non-accountable expense allowance equal to 3% of the gross proceeds 
    of the Offering, of which $55,000 has been paid by the Company to date, 
    (ii) warrants (the "Underwriter's Warrants") entitling the Underwriter to 
    purchase an amount equal to 10% of the number of shares of Common Stock 
    and Warrants offered hereby (excluding the Over-Allotment Option, as 
    defined in footnote 3, below) for a purchase price of 120% of the initial 
    public offering price thereof, (iii) a financial advisory agreement with 
    the Underwriter for 24 months commencing on the date of the closing of 
    the Offering for a fee of $4,000 per month, or an aggregate of $96,000, 
    payable in its entirety at the closing of the Offering, and (iv) a 
    two-year right of first refusal with respect to the underwriting or 
    placement of certain sales of securities by the Company, its subsidiaries 
    or affiliates. In addition, the Company has agreed to pay the 
    Underwriter, under certain circumstances, a warrant solicitation fee of 
    8% of the exercise price of each Warrant exercised and to indemnify the 
    Underwriter against certain civil liabilities, including those arising 
    under the Securities Act. See "Underwriting." 

(2) After deducting discounts and commissions payable to the Underwriter, but 
    before payment of the Underwriter's non-accountable expense allowance 
    ($164,250, or $188,887 if the Over-Allotment Option is exercised in 
    full), the financial advisory fee ($96,000) and the other expenses of the 
    Offering (estimated at $383,000) payable by the Company. See 
    "Underwriting." 

(3) The Company has granted the Underwriter an option, exercisable for a 
    period of 45 days after the closing of the Offering, to purchase up to an 
    additional 15% of the shares of Common Stock and/or Warrants offered 
    hereby, upon the same terms and conditions solely for the purpose of 
    covering over-allotments, if any (the "Over-Allotment Option"). If the 
    Over-Allotment Option is exercised in full, the total Price to Public, 
    Underwriting Discounts and Commissions and Proceeds to Company will be 
    $6,296,250, $629,625 and $5,666,625, respectively. See "Underwriting." 

   The Common Stock and Warrants are being offered by the Underwriter on a 
"firm commitment" basis, subject to prior sale, when, as and if delivered to 
the Underwriter and subject to certain conditions. Subject to the provisions 
of the underwriting agreement between the Underwriter and the Company, the 
Underwriter reserves the right to withdraw, cancel or modify the Offering and 
to reject any order in whole or in part. It is expected that delivery of 
certificates will be made against payment therefor at the office of Maidstone 
Financial, Inc., 101 East 52nd Street, New York, New York 10022, on or about 
        , 1997. 


                                      3 
<PAGE>

                            ADDITIONAL INFORMATION 


   The Company has filed with the Securities and Exchange Commission a 
Registration Statement on Form SB-2 under the Securities Act with respect to 
the securities offered hereby (the "Registration Statement"). This Prospectus 
does not contain all the information set forth in the Registration Statement 
and the exhibits thereto as permitted by the Rules and Regulations of the 
Commission. For further information with respect to the Company and such 
securities, reference is made to the Registration Statement and to the 
exhibits filed therewith. Statements contained in this Prospectus as to the 
contents of any contracts or other documents referred to herein are not 
necessarily complete and where such contract or other document is an exhibit 
to the Registration Statement, each such statement is qualified in all 
respects by the provisions of such exhibit to which reference is made for a 
full statement of the provisions thereof. The Registration Statement, 
including exhibits filed therewith, may be inspected, without charge, at the 
principal office of the Commission located at 450 Fifth Street, N.W., Room 
1024, Washington, D.C. 20549. Copies of all or any part of the Registration 
Statement (including the exhibits thereto) also may be obtained from the 
Public Reference Section of the Commission at the its principal office in 
Washington, D.C., at the Commission's prescribed rates. Electronic 
registration statements made through the Electronic Data Gathering Analysis 
and Retrieval system are publicly available through the Commission's web site 
at http://www.sec.gov. 

   On the Effective Date, the Company will become subject to the reporting 
requirements of the Securities Exchange Act of 1934, as amended (the 
"Exchange Act"), and, in accordance therewith, will file reports, proxy and 
information statements and other information with the Securities and Exchange 
Commission. Such reports, proxy and information statements and other 
information can be inspected and copied at the Public Reference Section of 
the Commission at Room 1024, Judiciary Plaza, 450 Fifth Street, N.W., 
Washington, D.C. 20549, and copies of such material may also be obtained from 
the Public Reference Section of the Commission at prescribed rates. The 
Commission maintains a Web site (http://www.sec.gov) that contains reports, 
proxy and information statements and other information regarding registrants 
that file electronically. The Company intends to furnish its stockholders 
with annual reports containing audited financial statements and such other 
reports as the Company deems appropriate or as may be required by law. 

                                      4
<PAGE>

                              PROSPECTUS SUMMARY 

   The following summary is qualified in its entirety by the more detailed 
information and consolidated financial statements appearing elsewhere in this 
Prospectus. Unless otherwise indicated or the context otherwise requires, all 
references herein to the Company or UNIVEC include UNIVEC, Inc., a New York 
corporation ("UNIVEC-NY"), which was merged into the Company on October 10, 
1996, and R/ Ultra, Inc., a wholly owned subsidiary of UNIVEC. Except as 
otherwise stated, all information assumes no exercise of the Over-Allotment 
Option. 

                                 THE COMPANY 

   UNIVEC, Inc. (the "Company" or "UNIVEC") develops and markets safety 
hypodermic syringes designed to protect the healthcare worker and patient 
against cross-infection. The Company also sells and intends to develop other 
hypodermic devices. The Company has commenced marketing its 1cc locking clip 
syringes, which are designed to make accidental or deliberate reuse 
difficult, and plans to distribute them beginning in the first quarter of 
1997. The accidental or deliberate reuse of syringes is a frequent cause of 
the spread of the human immunodeficiency ("HIV") and hepatitis viruses, as 
well as other blood-borne pathogens. The Company has received 510(k) 
clearance from the U.S. Food and Drug Administration (the "FDA") to market 
its locking clip syringes in the United States. 

   Public health officials, including C. Everett Koop (the former Surgeon 
General of the United States), have encouraged the medical industry to 
develop safer, more difficult to reuse, syringes, to prevent the spread of 
blood-borne pathogens, such as HIV and hepatitis. In 1995, the House of 
Delegates -- American Medical Association requested "manufacturers of 
disposable hypodermic needles and syringes to adopt designs to prevent reuse 
and to include in the packaging clear directions for their correct disposal." 
In late 1995, UNICEF recommended "the use of auto-destruct syringes instead 
of disposable, single use syringes in order to avoid the hazards of unsafe 
injection practices." In 1996, Brazil adopted a law requiring disposable 
syringes manufactured or marketed in that country to include a safety device 
to prevent its reuse. During 1996, New York State enacted legislation 
authorizing a limited number of pilot projects to test the practicality and 
effectiveness of difficult to reuse syringes. Such pilot tests are to be 
conducted, subject to funding, in state-operated facilities, such as prisons, 
hospitals, youth detention facilities and development centers. 

   The Company believes that its 1cc difficult to reuse syringes are more 
effective than competitive syringes and that they are competitively priced. 
The Company also believes that it is the only company that markets a 
difficult to reuse syringe with a 1cc barrel, which is ideal for dispensing 
 .05cc to .95cc dosages of medicine (e.g., allergy, immunization and insulin 
medicines). It is more difficult to deliver .05cc to .95cc dosages accurately 
with a syringe barrel that is greater than 1cc. The Company does not know of 
any other company that offers an aspirating syringe that healthcare workers 
can lock. Healthcare workers need aspirating syringes to mix medications in 
the syringe barrel and inject medications intravenously. Furthermore, the 
Company believes that aspirating syringes are preferred by diabetes patients 
and needle-exchange programs. 

   The Company's syringes will be assembled primarily by Harmac Medical 
Products, Inc. ("Harmac"), one of the largest independent, privately-owned 
contract manufacturers of disposable medical products in the United States, 
using assembly and packaging equipment supplied by the Company. Sherwood 
Davis & Geck ("Sherwood"), a subsidiary of American Home Products, will 
supply most of the components for the syringes assembled by Harmac. Some of 
the Company's syringes and its proprietary aspirating plunger will be 
manufactured by INSERPOR, a contract manufacturer in Portugal. 

   The Company's initial marketing efforts will be directed primarily to 
UNICEF, the World Health Organization ("WHO"), and public hospitals and 
health facilities in New York. The Company also intends to market its locking 
clip syringes to (i) governments of developing countries, (ii) private 
hospitals and health facilities in New York, New Jersey and Connecticut, and 
(iii) retail distributors in the United States. The Company also plans to 
license its patents and proprietary manufacturing processes relating to its 
lock- 

                                        5
<PAGE>
ing clip and other syringe designs to established medical device 
manufacturers. To stimulate demand for its safety syringes, the Company plans 
to initiate promotional and educational campaigns directed at (i) public 
health officers and other government officials responsible for public health 
policies, (ii) doctors and administrators of healthcare facilities 
responsible for treatment of HIV-AIDS patients, and (iii) liability insurance 
companies. The Company plans to enter into arrangements with independent 
sales agents and distributors in targeted markets and to hire a marketing 
director following the completion of the Offering. 

   The Company is a Delaware corporation, incorporated on October 7, 1996, 
and the successor by merger to UNIVEC, Inc., a New York corporation, 
incorporated on August 18, 1992. The executive officers of the Company are 
located at 999 Franklin Avenue, Garden City, New York 11530 (telephone number 
(516) 294-1000). 

                                 THE OFFERING 

Securities Offered.............  1,500,000 shares of common stock, $0.001 par 
                                 value per share (the "Common Stock"), and 
                                 2,250,000 redeemable common stock purchase 
                                 warrants (the "Warrants"). Each Warrant 
                                 entitles the holder thereof to purchase one 
                                 share of Common Stock at an exercise price 
                                 of $4.50 per share, subject to adjustment in 
                                 certain events. The shares of Common Stock 
                                 and the Warrants are separately tradeable 
                                 and transferable upon issuance. See 
                                 "Description of Securities" and 
                                 "Underwriting." 

Offering Price.................  $3.50 per share of Common Stock and $.10 per 
                                 Warrant. 

Terms of Warrants: 
  Exercise price...............  $4.50 per share, subject to adjustment in 
                                 certain events. See "Description of 
                                 Securities -- Warrants." 

 Exercise period...............  Any time during the period commencing 
                                 ------, 1999 [two years after the Effective 
                                 Date] and ending ------, 2002 [the fifth 
                                 anniversary of the Effective Date]. 

 Redemption....................  Redeemable by the Company, with the prior 
                                 written consent of the Underwriter, at a 
                                 price of $.05 per Warrant upon not less than 
                                 30 days prior written notice to the holders 
                                 of the Warrants at any time commencing 
                                 ------, 1999 [two years after the Effective 
                                 Date], provided the closing bid price of the 
                                 Common Stock has been at least $8.00 for 20 
                                 consecutive trading days ending on the third 
                                 day prior to the date upon which the Company 
                                 gives notice of redemption. See "Description 
                                 of Securities -- Warrants." 

Common Stock Outstanding: 
 Prior to the Offering.........  1,082,287(1) shares of Common Stock 

 After the Offering............  2,619,907(2) shares of Common Stock 

Warrants Outstanding: 
 Prior to the Offering ........  2,500,000 Warrants(3) 
 After the Offering ...........  4,750,000 Warrants 

Use of Proceeds................  The net proceeds of the Offering, 
                                 aggregating approximately $4,284,250, will 
                                 be used (1) for the purchase of equipment, 
                                 (2) for 

                                        6
<PAGE>

                                 marketing, promotion and public relations, 
                                 (3) for product development, (4) for 
                                 repayment of the Bridge Notes, and (5) for 
                                 working capital and general corporate 
                                 purposes. See "Use of Proceeds." 

 Risk Factors..................  The securities offered hereby involve a high 
                                 degree of risk and immediate substantial 
                                 dilution to new investors. Only investors 
                                 who can bear the risk of their entire 
                                 investment should invest. See "Risk Factors" 
                                 and "Dilution." 

 Proposed Nasdaq SmallCap 
   Market Symbols..............  Common Stock -- UNVC; Warrants -- UNVCW 

- ------ 
(1) Does not include (i) 60,042 shares reserved for issuance upon exercise of 
    outstanding options, at an exercise price of $3.50, expiring at various 
    dates from February 22, 1999 through June 30, 1999, (ii) 2,500,000 shares 
    issuable upon exercise of warrants ("Bridge Warrants") issued in 
    connection with a bridge financing completed in December 1996 (the 
    "Bridge Financing"), which warrants will be automatically converted into 
    warrants having terms identical to the Warrants offered hereby on the 
    Effective Date, (iii) 35,715 shares reserved for issuance upon conversion 
    of the Company's 12 1/2% demand promissory note in the principal amount 
    of $125,000 following the consummation of the sale of the shares of 
    Common Stock and Warrants offered hereby (the "Closing"), (iv) 33,250 
    shares of Common Stock to be issued to a director of the Company at the 
    Closing in exchange for the cancellation of amounts due to him ($116,373 
    as of September 30, 1996), (v) 4,688,706 shares reserved for issuance 
    upon exercise of options which may be granted in the future pursuant to 
    the Company's stock option plan, and (vi) 282,000 shares reserved for 
    issuance upon conversion of the Company's Series A 8% Cumulative 
    Convertible Preferred Stock (the "Series A Preferred Stock"). See 
    "Certain Transactions," "Management -- Stock Option Plan" and 
    "Description of Securities -- Series A Preferred Stock." 

(2) Does not include (i) 55,672 shares reserved for issuance upon exercise of 
    outstanding options, at an exercise price of $3.50, expiring at various 
    dates from February 22, 1999 through June 30, 1999, (ii) 4,750,000 shares 
    issuable upon exercise of the Warrants and the warrants to be issued to 
    holders of Bridge Warrants upon the automatic conversion of the Bridge 
    Warrants on the Effective Date, (iii) 35,715 shares reserved for issuance 
    upon conversion of the Company's 12 1/2% demand promissory note in the 
    principal amount of $125,000 following the Closing, (iv) 4,688,706 shares 
    reserved for issuance upon exercise of options which may be granted in 
    the future pursuant to the Company's stock option plan, and (vi) 282,000 
    shares reserved for issuance upon conversion of the Series A Preferred 
    Stock. Includes (i) 33,250 shares of Common Stock to be issued to a 
    director of the Company at the Closing in exchange for the cancellation 
    of amounts due to him ($116,373 as of September 30, 1996), and (ii) 4,370 
    shares to be issued to an officer of the Company at Closing upon exercise 
    of options. See "Certain Transactions," "Management -- Stock Option Plan" 
    and "Description of Securities -- Series A Preferred Stock." 

(3) Represents the Bridge Warrants, which will convert automatically into 
    warrants having terms identical to the Warrants offered hereby on the 
    Effective Date. 

                                        7
<PAGE>
                SUMMARY OF CONSOLIDATED FINANCIAL INFORMATION 

   The summary consolidated financial information set forth below is derived 
from and should be read in conjunction with "Management's Discussion and 
Analysis of Financial Condition and Results of Operations" and the Company's 
consolidated financial statements, including the notes thereto, appearing 
elsewhere herein. 

STATEMENT OF OPERATIONS DATA: 
<TABLE>
<CAPTION>
                                             Year Ended                  Nine Months Ended 
                                            December 31,                   September 30, 
                                    ----------------------------   ----------------------------- 
                                         1994           1995           1995            1996 
                                     ------------   ------------    ------------   ------------- 
<S>                                 <C>             <C>             <C>            <C>
Sales  ...........................        --         $1,106,930         --         $   282,000 
Gross profit  ....................        --             90,400         --              58,069 
Net loss  ........................    ($  661,853)     (946,014)    ($  895,807)    (1,002,791) 
Net loss per common share  .......    ($     0.65)   ($    0.89)    ($     0.85)    ($    0.95) 
Weighted average number of common 
  and common equivalent shares 
  outstanding ....................      1,025,608     1,059,001       1,056,218      1,059,001 
</TABLE>

BALANCE SHEET DATA: 

<TABLE>
<CAPTION>
                                                  September 30, 1996 
                                         ------------------------------------- 
                                                                 As Adjusted 
                                            Actual                   (1) 
                                         -------------          -------------- 
   <S>                                   <C>                    <C>
   Working capital (deficit) ..          ($  536,442)            3,609,123(2) 
   Total assets ...............            1,234,486             5,322,787(3) 
   Accumulated deficit ........           (3,815,158)           (1,866,354)(4) 
   Stockholders' equity 
     (deficit)  ...............           (3,407,658)            2,206,526(5) 
</TABLE>

- ------ 
(1) Gives effect to the issuance and sale of 1,500,000 shares of Common Stock 
    and 2,250,000 Warrants offered hereby and the application of the 
    estimated net proceeds thereof. 

(2) Gives effect to (i) the payment of $15,949 by the Company for federal and 
    state withholding and payroll taxes incurred by an officer of the 
    Company, upon exercise of stock options; (ii) the cancellation of $25,000 
    of indebtedness payable to a consultant in December 1996 in exchange for 
    the issuance of 7,143 shares of Common Stock; and (iii) the receipt of 
    net proceeds of approximately $853,000 (before payment of expenses of 
    approximately $33,000) from the issuance and sale in the fourth quarter 
    of 1996 of $1,000,000, principal amount of the Company's 8% promissory 
    notes (the "Bridge Notes") and warrants to purchase 2,500,000 shares of 
    Common Stock (the "Bridge Warrants"), for a total purchase price of 
    $1,000,000 in the Bridge Financing. 

(3) Gives effect to (i) a deduction for the payment of $15,949 by the Company 
    for federal and state withholding and payroll taxes incurred by an 
    officer of the Company, upon exercise of stock options; and (ii) the 
    receipt of net proceeds of $820,000 from the Bridge Financing, after 
    payment of all related expenses. 

(4) Gives effect to (i) the reclassification of $1,948,805 of S corporation 
    undistributed losses to paid-in capital; and (ii) the write-off of debt 
    issuance costs of $180,000 associated with the Bridge Financing. 

(5) Gives effect to (i) the issuance of 1,269 shares of Series A Preferred 
    Stock in December 1996 in exchange for the cancellation of approximately 
    $1,269,000 due to certain stockholders and affiliates of the Company; 
    (ii) the issuance of 33,250 shares of Common Stock at the Closing in 
    exchange for the cancellation of approximately $116,373 (as of September 
    30, 1996) due to a director of the Company; (iii) the issuance of an 
    aggregate of 20,513 shares of Common Stock, upon exercise of options by 
    an officer of the Company, at an exercise price of $3.50 per share, in 
    consideration for the cancellation of accrued compensation ($75,244) and 
    other amounts ($12,500) payable to him; (iv) the issuance of 7,143 shares 
    of Common Stock in December 1996 in exchange for the cancellation of 
    $25,000 of indebtedness payable to a consultant; and (v) the write-off of 
    debt issuance costs of $180,000 associated with the Bridge Financing. 



                                       8
<PAGE>

                                 RISK FACTORS 

   The securities offered hereby are speculative and involve a high degree of 
risk, including but not limited to the risk factors described below. Each 
prospective investor should carefully consider the following risk factors 
before making an investment decision. 

   1. Continuing Losses; Accumulated Deficit; Working Capital Deficit.  Since 
inception, the Company has experienced losses, including a net loss of 
approximately $946,000 (on sales of approximately $1,107,000) for the year 
ended December 31, 1995, as compared to a net loss of approximately $662,000 
(with no sales) for the year ended December 31, 1994. In addition, the 
Company incurred a net loss of approximately $1,003,000 (on sales of 
approximately $282,000) for the nine months ended September 30, 1996, as 
compared to a net loss of approximately $896,000 (with no sales) for the nine 
months ended September 30, 1995. The Company expects to continue to incur 
operating losses until such time, if ever, as the Company's locking clip 
syringes achieve sufficient market acceptance to generate significant sales. 
There can be no assurance that the Company will ever operate profitably. As 
of September 30, 1996, the Company had an accumulated deficit of 
approximately $3,815,000 and a working capital deficit of approximately 
$536,000. The Company's ability to operate profitably depends upon market 
acceptance of its locking clip syringes, the development of an effective 
sales and marketing organization, and the development of new products and 
improvements to existing products. There can be no assurance that the 
Company's locking clip syringes will achieve a level of market acceptance in 
foreign or domestic markets to generate sufficient revenues to become 
profitable. See "Management's Discussion and Analysis of Financial Condition 
and Results of Operations" and the Company's consolidated financial 
statements, including the notes thereto, appearing elsewhere herein. 

   2. Qualified Report of Independent Accountants; "Going Concern." The 
Company's independent accountants have qualified their report on the 
Company's consolidated financial statements for the year ended December 31, 
1995, which indicates there is substantial doubt about the Company's ability 
to continue as a going concern due to the Company's need to generate cash 
from operations and obtain additional financing. See "Management's Discussion 
and Analysis of Financial Condition and Results of Operations" and "Report of 
Independent Accountants" on the Company's consolidated financial statements 
appearing at page F-2 hereof. 

   3. Limited Operating History.  Although the Company commenced operations 
in August 1992, its operations have consisted primarily of the design of its 
patented locking clip and plunger, the design of the manufacturing processes 
and equipment for production of the locking clip, the hiring of key 
personnel, formulation of a marketing plan for the sale of its syringes, and 
the negotiation of production and supply agreements with contract 
manufacturers and suppliers of components to be used in the production of its 
syringes. Accordingly, the Company has a limited operating history upon which 
an evaluation of its business and prospects can be based. An investment in 
the securities of the Company is subject to all of the risks involved in a 
newly established business venture. Potential investors should be aware of 
the problems, delays, expenses and difficulties encountered by companies at 
this early stage of operations, many of which may be beyond the Company's 
control, including but not limited to commencement of production, marketing 
and product introduction, competition, market acceptance of the Company's 
difficult to reuse syringes, and unanticipated problems and additional costs 
relating to the development and testing of products. None of the Company's 
officers have any experience in the manufacture or distribution of medical 
devices. See "Management's Discussion and Analysis of Financial Condition and 
Results of Operations" and "Management." 

   4. Ability to Manage Growth. The Company contemplates a rapid expansion of 
its business. If the Company were to experience significant growth in the 
future, such growth would likely result in new and increased responsibilities 
for management personnel and place significant strain upon the Company's 
management, operating and financial systems and resources. To accommodate 
such growth and compete effectively, the Company must continue to implement 
and improve its operational, financial, management and information systems, 
procedures and controls, and to expand, train and manage its personnel. There 
can be no assurance that the Company's personnel, systems, procedures and 
controls will be adequate to support the Company's future operations. Any 
failure to implement and improve the Company's operational, financial, 
management and information systems, procedures or controls or to expand, 
train or manage employees, could materially and adversely affect the 
Company's business, financial condition and results of operations. See "Use 
of Proceeds," "Risk Factors -- Dependence on Key Personnel," "Business -- 
Employees" and "Management -- Directors, Executive Officers and Key 
Employees." 


                                       9
<PAGE>
   5. Government Regulation. The manufacture and distribution of medical 
devices are subject to extensive regulation by the FDA and, in some 
instances, by foreign and state governments. Approval by the FDA and foreign 
government authorities is unpredictable and uncertain, and no assurance can 
be given that the necessary approvals or clearances for the Company's 
products will be granted on a timely basis or at all. Delays in receipt of, 
or a failure to receive, such approvals or clearances, or the loss of any 
previously received approvals or clearances, could have a materially adverse 
effect on the business, financial condition and results of operations of the 
Company. Furthermore, approvals that have been or may be granted are subject 
to continual review, and later discovery of previously unknown problems may 
result in product labeling restrictions or withdrawal of the product from the 
market. Moreover, changes in existing requirements or adoption of new 
requirements or policies could adversely affect the ability of the Company to 
comply with regulatory requirements. In addition, there can be no assurance 
that the Company will not be required to incur significant costs to comply 
with applicable laws and regulations in the future. Failure to comply with 
applicable laws or regulatory requirements could have a materially adverse 
effect on the Company's business, financial position and results of 
operations. See "Business -- Government Regulation." 

   FDA and State Regulation. Pursuant to the Federal Food, Drug, and Cosmetic 
Act, as amended, and the regulations promulgated thereunder (collectively, 
the "FDC Act"), the FDA regulates the clinical testing, manufacture, 
labeling, sale, distribution and promotion of medical devices. Before a new 
device can be introduced into the market, a manufacturer must obtain FDA 
permission to market through either the 510(k) pre-market notification 
process or the costlier, lengthier and less certain pre-market approval 
("PMA") application process. The FDA has granted the Company's 510(k) 
application for its 1cc locking clip syringe, which has been classified as a 
Class II device under the FDC Act, and accordingly, the Company may market 
and sell its 1cc locking clip syringe in the United States, subject to 
compliance with other applicable FDA regulatory requirements. As a Class II 
device, performance standards may be developed for the 1cc locking clip 
syringe which the product would then be required to meet. Failure to meet 
those standards would require the Company to discontinue the marketing of the 
product. Furthermore, manufacturers of medical devices are subject to 
recordkeeping requirements and required to report adverse experiences 
relating to the use of the device. Device manufacturers also are required to 
register their establishments and list their devices with the FDA and with 
certain state agencies and are subject to periodic inspections by the FDA and 
certain state agencies. The FDC Act requires devices to be manufactured in 
accordance with good manufacturing practices ("GMP") regulations, which 
impose certain procedural and documentation requirements upon the Company 
with respect to manufacturing and quality assurance activities. The FDA 
conducts periodic audits and surveillance of the manufacturing, sterilizing 
and packaging facilities of medical device manufacturers to determine 
compliance with GMP requirements. The failure of a medical device 
manufacturer to be able to show in the audit or post-market surveillance that 
it has adequately complied with GMP requirements can result in penalties or 
enforcement proceedings being imposed on the manufacturer. Harmac's 
facilities will be subject to extensive audits in the future, pursuant to 
standard FDA procedure. No assurance can be given that when Harmac is audited 
that it will be found to be in compliance with GMP requirements, or that if 
it is not found in compliance, what penalties, enforcement procedures or 
compliance effort will be levied on or required of Harmac and/or the Company. 
Recently adopted GMP requirements, including those pertaining to design 
control, are likely to increase the cost of GMP compliance. Noncompliance 
with applicable FDA requirements, including GMP regulations, can result in, 
among other things, fines, injunctions, civil penalties, recall or seizure of 
products, total or partial suspension of production, failure of the 
government to grant pre-market clearance or pre-market approval for devices, 
withdrawal of marketing approvals, and criminal prosecution. The FDA also has 
the authority to request repair, replacement or refund of the cost of any 
device manufactured or distributed by the Company. 

   Foreign Regulations. The introduction of the Company's products in foreign 
markets will subject the Company to foreign regulatory clearances which may 
impose additional substantive costs and burdens. The Company's products are 
required to satisfy international manufacturing standards required by the 
International Standards Organization ("ISO") for sale in certain foreign 
countries. Although Harmac expects to achieve ISO 9001 certification in the 
first quarter of February 1997, until Harmac obtains ISO 9001 certification, 
the Company will have difficulty selling to some export accounts, 
particularly in Europe. International sales of medical 



                                       10
<PAGE>
devices are subject to the regulatory requirements of each country. The 
regulatory review process varies from country to country. Many countries also 
impose product standards, packaging requirements, labeling requirements and 
import restrictions on devices. In addition, each country has its own tariff 
regulations, duties and tax requirements. 

   6. Product Acceptance; Demand for Locking Clip Syringes. The Company 
expects to derive a significant portion of its revenues from sales of locking 
clip syringes and/or licensing of its intellectual property. Despite 
increased public awareness of the risks associated with conventional 
disposable syringes, of the major syringe manufacturers only Becton-Dickinson 
is manufacturing a difficult to reuse syringe for sale to UNICEF and WHO. 
Accordingly, the Company's future success and financial performance will 
depend almost entirely on its ability to successfully market its locking clip 
syringes. There can be no assurance that the Company's marketing efforts will 
be successful or that sales of the Company's difficult to reuse syringes will 
generate sufficient revenues for the Company to become profitable. Export 
sales, particularly in Europe, may be adversely affected until the Company's 
contract manufacturers are able to manufacture the Company's syringes in 
accordance with manufacturing standards required by the International 
Standards Organization. See "Management's Discussion and Analysis of 
Financial Condition and Results of Operations" and "Business." 

   7. Licensing. The Company intends to license its patents and proprietary 
manufacturing processes relating to its locking clip and other syringe 
designs to established medical device manufacturers worldwide. Although the 
Company has granted Sherwood an option for a non-exclusive license to 
manufacture and sell the Company's locking clip syringe in the United States, 
there can be no assurance that Sherwood will exercise the option, that others 
will enter into license arrangements with the Company, or that the Company 
will be successful in its licensing efforts. See "Business." 

   8. Dependence on Certain Customers. Relief agencies, including UNICEF and 
WHO, administered almost one billion injections to women and children through 
immunization programs in developing countries in 1995. Although UNICEF has 
expressed an interest in placing an initial order with the Company for 20 
million locking clip syringes, the Company does not have a legally binding 
commitment from UNICEF, and there can be no assurance as to the number of 
locking clip syringes which UNICEF will purchase from the Company, if any. 
The Company has only sold samples of its locking clip syringes hand assembled 
by Sherwood to UNICEF. In order to qualify for a commercial order, the 
Company must deliver samples that meet UNICEF's acceptance criteria. The 
failure of UNICEF or other UN health organizations to purchase the Company's 
locking clip syringes in the quantities contemplated by past expressions of 
intent would have a materially adverse effect on the Company's business, 
financial condition and results of operations. See "Business." 

   Furthermore, in 1996, New York State enacted legislation authorizing a 
limited number of pilot projects to test the practicality and effectiveness 
of difficult to reuse syringes. Such pilot tests are to be conducted, subject 
to funding, in state-operated facilities, such as prisons, hospitals, youth 
detention facilities, and development centers. New York State officials have 
expressed an intent to buy the Company's syringes. However, the Company does 
not have a legally binding commitment from purchasing agents for any of the 
New York state- operated facilities, and there can be no assurance as to the 
number of locking syringes which New York state- operated facilities will 
purchase from the Company, if any. 

   9. Dependence on Certain Suppliers. The Company has entered into a letter 
of understanding with INSERPOR, a Portuguese syringe manufacturer which has 
previously manufactured syringes distributed by UNICEF, for the assembly of 
syringes ordered by UNICEF (if any), as long as INSERPOR can supply the 
required volume of syringes. Although the Company plans to negotiate a 
definitive supply agreement with INSERPOR as soon as INSERPOR demonstrates 
that it can deliver components and finished syringes that satisfy quality 
criteria, there can be no assurance that the Company will enter into a 
definitive supply agreement with INSERPOR. If INSERPOR is unable to supply a 
sufficient quantity of components, the Company would seek to purchase 
additional quantities of components from alternative suppliers, such as 
Sherwood. However, there can be no assurance that the Company would be able 
to obtain sufficient quantities of the syringe and related components 
required to fill orders from UNICEF from alternative suppliers. In addition, 
the Company is dependent upon INSERPOR to supply the Company's proprietary 
plunger which satisfies tolerance limits for assembly of its aspirating 
syringe. If INSERPOR is unable to supply sufficient quantities of the 
Company's proprietary plunger which satisfies such tolerance limits, the 
Company will be required to obtain alternative sources 


                                       11
<PAGE>

of supply. The Company has commenced discussions with Harmac to mold the 
aspirating plunger; however, there can be no assurance that the Company will 
be able to obtain an alternative source of supply on acceptable terms. 
Furthermore, if the Company is able to obtain an alternative source of 
supply, there can be no assurance that production of its aspirating syringes 
will not be delayed. The Company's failure to obtain an alternate supplier 
for its proprietary plunger or delays resulting from the selection of an 
alternate supplier could have a materially adverse effect on the Company's 
business. See "Business -- Suppliers." 

   The Company is dependent upon Sherwood for supplying syringe component 
sets for the production of its locking clip syringes for other customers. 
Pursuant to its supply agreement with the Company, Sherwood is only obligated 
to deliver 4,166,667 component sets per month. There can be no assurance that 
Sherwood will be able to supply component sets in excess of that amount if 
the Company receives orders for syringes in excess thereof, or that the 
Company will be able to obtain additional component sets from alternative 
sources of supply on favorable terms, if at all. Failure to obtain an 
adequate supply of syringes and related components could result in the 
cancellation of orders and consequently, could have a materially adverse 
effect on the Company's business. The Company also is dependent upon Sherwood 
to supply the Company's proprietary plunger which satisfies tolerance limits 
for assembly of its non-aspirating syringe. If Sherwood is unable to supply 
sufficient quantities of the Company's proprietary plunger which satisfies 
such tolerance limits, the Company will be required to obtain alternative 
sources of supply. The Company has commenced discussions with Harmac to mold 
the non-aspirating plunger; however, there can be no assurance that the 
Company will be able to obtain an alternative source of supply on acceptable 
terms. See "Business -- Suppliers." 

   10. Dependence on Certain Assemblers. The Company has entered into a 
manufacturing agreement with Harmac for the assembly of the Company's locking 
clip syringes. The equipment which the Company has supplied Harmac with for 
the assembly of 1cc syringes only is capable of producing 80 million syringes 
per year. There can be no assurance that Harmac will produce sufficient 
quantities of syringes, or that if Harmac is unable to do so, that the 
Company will be able to arrange for production of syringes from other sources 
on a timely basis on terms acceptable to the Company. See "Business -- 
Production." 

   The Company has entered into a letter of understanding with INSERPOR for 
the assembly of the Company's non-aspirating, locking syringes for UNICEF and 
other UN-related immunization programs, as long as INSERPOR can supply the 
required volume of syringes. Although the Company plans to negotiate a 
definitive agreement with INSERPOR as soon as INSERPOR demonstrates that it 
can deliver components and finished syringes that satisfy quality criteria, 
there can be no assurance that the Company will enter into a definitive 
agreement with INSERPOR. INSERPOR is capable of producing 30 million 
syringes, which is contingent upon modifications to existing assembly 
equipment and additional equipment to subassemble the clip to the plunger 
(clip assembly line), the cost of which is estimated at $225,000. The Company 
expects to purchase the clip assembly line with a portion of the net proceeds 
of the Offering. Although INSERPOR has manufactured syringes for UNICEF, 
there can be no assurance that INSERPOR will produce sufficient quantities of 
syringes, or that if INSERPOR is unable to do so, that the Company will be 
able to arrange for production of syringes from other sources on a timely 
basis on terms acceptable to the Company. See "Business -- Production." 

   11. Delays in Establishing Production Capability. Although the Company 
expects to commence production of its locking clip syringes at Harmac's 
facilities in the first quarter of 1997, there can be no assurance that the 
commencement of production will not be delayed as a result of delays in 
acquiring, installing and testing the equipment and tooling required for 
production. The failure to timely commence production would delay receipt of 
revenues and would have a materially adverse effect on the Company's 
business, financial condition and results of operations. 

   12. Ability to Develop 3cc Syringe. The Company intends to develop 3cc 
locking clip syringes for hospitals and health clinics in 1997, and 
anticipates that production of the non-aspirating model will commence by 
1998. In general, hospitals and health clinics use more 3cc syringes than 1cc 
syringes, and may not be willing to purchase the Company's 1cc locking clip 
syringes until such time as the Company is able to offer 3cc syringes. 
However, there can be no assurance that the 3cc designs selected for 
commercialization will be accepted by hospitals and health clinics. Moreover, 
the Company has not yet selected a product design for its aspirating model, 
nor has it selected a design for the assembly equipment or an engineering 
firm to construct the equipment. The Company's failure to timely select a 
design for an aspirating model, a design for assembly 


                                       12
<PAGE>


equipment, or an engineering firm to construct, such assembly equipment could 
delay the production and commercial introduction of the Company's 3cc 
syringe. Depending on the design selected, the Company may be required to 
obtain 510(k) pre-market approval from the FDA prior to commencing commercial 
sales of its 3cc aspirating syringes in the United States. See "Business." 

   13. Uncertainty Regarding Patents and Protection of Proprietary 
Technology; Risk of Future Litigation. The Company's success will depend, in 
part, on the strength of its patents, as well as its ability to preserve its 
trade secrets and operate without infringing the proprietary rights of 
others. The Company's policy is to seek protection of its proprietary 
position by, among other methods, filing United States and foreign patent 
applications related to its technology, inventions and improvements that are 
important to the development of its business. The Company holds four United 
States patents, including patents for its locking clip and aspirating 
plunger, and has filed patent applications for its locking clip in Canada, 
Brazil, Mexico, certain European countries, Japan, South Korea, China, Russia 
and Australia. In addition, the Company has acquired licensed rights for 
United States patents on three other locking devices, which utilize different 
locking apparatuses or methods than those claimed by the UNIVEC clip patents. 
The Company licensed these patents to exclude others from using these 
inventions and/or to develop a 3cc locking syringe. The Company has filed for 
patent protection in certain European Countries for one of these licenses, 
which may be used in connection with its 3cc non-aspirating syringe. 

   There can be no assurance that pending or future applications for patents 
and trademarks will mature into issued patents, or that the Company will 
continue to develop its own patentable technologies. Furthermore, there can 
be no assurance that any of the Company's patents or patents that may be 
issued in the future will not be challenged, invalidated or circumvented in 
the future or that the rights granted thereunder will provide a competitive 
advantage. In addition, patent applications filed in foreign countries and 
patents granted in such countries are subject to laws, rules and procedures 
that differ from those in the United States. Patent protection in such 
countries may be different from patent protection provided by the laws of the 
United States. 

   Patent applications in the United States are maintained in secrecy until 
patents issue, and patent applications in foreign countries are maintained in 
secrecy for a period after filing. Publication of discoveries in the 
scientific or patent literature tends to lag behind actual discoveries and 
the filing of related patent applications. Accordingly, there can be no 
assurance that current and potential competitors and other third parties have 
not filed or in the future will not file applications for, or have not 
received or in the future will not receive, patents or obtain additional 
proprietary rights that will prevent, limit or interfere with the Company's 
ability to make, use or sell its products either in the United States or 
internationally. 

   The medical device industry in general has been characterized by 
substantial competition and litigation regarding patent and other proprietary 
rights. The Company intends to vigorously protect and defend its patents and 
other proprietary rights relating to its proprietary technology. Litigation 
alleging infringement claims against the Company (with or without merit), or 
instituted by the Company to enforce patents and to protect trade secrets or 
know-how owned by the Company or to determine the enforceability, scope and 
validity of the proprietary rights of others, is costly and time consuming. 
If any relevant claims of third-party patents are upheld as valid and 
enforceable in any litigation or administrative proceedings, the Company 
could be prevented from practicing the subject matter claimed in such 
patents, or would be required to obtain licenses from the patent owners of 
each patent, or to redesign its products or processes to avoid infringement. 
There can be no assurance that such licenses would be available or, if 
available, would be available on terms acceptable to the Company or that the 
Company would be successful in any attempt to redesign its products or 
processes to avoid infringement. Accordingly, an adverse determination in a 
judicial or administrative proceeding or failure to obtain necessary licenses 
could prevent the Company from manufacturing and selling its products, which 
would have a materially adverse effect on the Company's business, financial 
condition and results of operations. 

   The Company also relies upon trade secrets, technical know-how and 
continuing technological innovation to develop and maintain its competitive 
position. There can be no assurance that competitors will not independently 
develop substantially equivalent proprietary information and techniques or 
otherwise gain access to the Company's proprietary technology, or that the 
Company can meaningfully protect its rights in unpatented proprietary 
technology. See "Business -- Patents and Proprietary Rights" and "Risk 
Factors -- Competition." 

   14. Competition. The Company's principal competition is from manufacturers 
of traditional disposable syringes. Becton-Dickinson and Company 
("Becton-Dickinson"), Sherwood and Terumo Medical Corporation of 


                                       13
<PAGE>


Japan ("Terumo") control approximately 74%, 19% and 5%, respectively, or a 
total of approximately 98%, of the worldwide syringe market, and are 
substantially larger, more established and have significantly greater 
financial, sales and marketing, distribution, engineering, research and 
development and other resources than the Company. To the Company's knowledge, 
only Becton-Dickinson and Bader & Partner Medizintechnik GmbH ("Bader"), a 
German machine tool manufacturer, distribute commercially a line of difficult 
to reuse syringes, none of which allow for aspiration. The Bader DestroJect 
syringe and the Becton-Dickinson SOLOSHOT syringe were developed originally 
for WHO-UNICEF immunization programs. There can be no assurance that the 
major syringe manufacturers or others will not commence production of 
difficult to reuse syringes, or that the Company will be able to successfully 
compete in this market. See "Business -- Difficult to Reuse Syringes" and 
"Business -- Competition." 

   15. Dependence on Third Parties for Marketing; Limited Marketing 
Experience.  The Company intends to sell its products primarily through sales 
agents and third-party distributors and may, on a limited basis, sell 
products independently. The Company has entered into a limited number of 
agreements with sales agents for the sale of its products. There can be no 
assurance that the Company will be able to obtain satisfactory arrangements 
with sales agents or distributors or that the Company will generate 
substantial revenues from sales by sales agents and distributors. 

   16. Reliance on Foreign Sales. The Company believes that a significant 
portion of its revenues will be derived from the sale of its locking clip 
syringes in foreign markets, which will result in the Company being subject 
to risks associated with foreign sales, including economic or political 
instability, shipping delays, fluctuations in foreign currency exchange 
rates, custom duties and export quotas and other trade restrictions, any of 
which could have a materially adverse effect on the Company's business. 
Although the Company intends to negotiate confirmed (irrevocable) letters of 
credit and to transfer product title to the buyer when delivered to the 
shipper (f.o.b. warehouse), there is no assurance that such terms will be 
acceptable to customers. 

   17. Product Liability. The manufacture and sale of medical products 
exposes the Company to the risk of significant damages from product liability 
claims. The Company maintains product liability insurance against product 
liability claims in the amount of $5 million per occurrence and $5 million in 
the aggregate. The Company also has applied for recall insurance, although 
there can be no assurance that such coverage can be obtained at acceptable 
cost. There can be no assurance that the coverage limits of the Company's 
insurance policies will be adequate, that the Company will continue to be 
able to procure and maintain such insurance coverage, that such insurance can 
be maintained at acceptable costs, or that customers will be able to satisfy 
indemnification claims. In addition, any successful claim against the Company 
in an amount exceeding its insurance coverage could have a materially adverse 
effect on its business, financial condition or results of operations. 

   18. Control of the Company; Ownership of Shares by Directors and 
Officers.  Upon completion of the Offering, officers and directors of the 
Company will beneficially own in the aggregate approximately 43% of the 
outstanding shares of the Company's Common Stock. Although these stockholders 
may or may not agree on any particular matter that is the subject of a vote 
of the stockholders, these stockholders may be effectively able to control 
the outcome of any issues which may be subject to a vote of stockholders, 
including the election of directors, proposals to increase the authorized 
capital stock, or the approval of mergers, acquisitions, or the sale of all 
or substantially all of the Company's assets. See "Security Ownership of 
Certain Beneficial Owners and Management." 

   19. Dependence on Management. The Company is dependent for the conduct of 
its business on the experience, abilities and continued services of Joel 
Schoenfeld, Chairman of the Board and Chief Executive Officer of the Company, 
Dr. Alan H. Gold, President and a Director of the Company, David Shonfeld, 
Director of Research and Development and a Director of the Company, and David 
Chabut, Chief Financial Officer of the Company. The Company is dependent upon 
Joel Schoenfeld for strategy, marketing and general management, Dr. Alan H. 
Gold for functional definition of its products, David Shonfeld for product 
design to meet functional requirements and David Chabut for financial 
management. Dr. Alan H. Gold is professionally employed by, and is the 
President of, the Long Island Plastic Surgical Group, and he only works 
part-time with the Company. The Company does not have an employment agreement 
with Joel Schoenfeld or Dr. Alan H. Gold, or key-man insurance on the life of 
any of its executive officers. The Company has applied for key-man insurance 
on the lives of Joel Schoenfeld and David Chabut, each in the amount of 
$1,000,000, and will enter into an employment 


                                       14
<PAGE>


agreement with Joel Schoenfeld prior to the Effective Date. However there can 
be no assurance that such insurance can be obtained at acceptable cost. 
Furthermore, there is no plan of succession if one or more of the Company's 
officers dies or becomes disabled. The loss of the services of Joel 
Schoenfeld, Dr. Alan H. Gold, David Shonfeld or David Chabut could have a 
materially adverse effect on the Company. See "Management." 

   20. Need for Additional Financing. Although the Company anticipates that 
the net proceeds of the Offering, together with cash flow from operations, 
will be sufficient to finance its operations for the 12 months following the 
Effective Date, there can be no assurance that the Company will not require 
additional financing at an earlier date. This will depend upon the Company's 
ability to generate sufficient sales of its products and the timing of 
required expenditures. If the Company is required to obtain financing in the 
future, there can be no assurance that such financing will be available on 
terms acceptable to the Company, if at all. See "Management's Discussion and 
Analysis of Financial Condition and Results of Operations -- Liquidity and 
Capital Resources." 

   21. Underwriter's Potential Influence on the Company. The Company has 
agreed that for three years from the Effective Date, the Underwriter may 
designate one person for election to the Company's Board of Directors and 
that the Company will reasonably cooperate with the Underwriter in respect of 
such designation. The election of such designee, if any, may enable the 
Underwriter to exert influence on the Company. The Underwriter has not 
designated any individual for election to the Company's Board of Directors. 
See "Underwriting." 

   22. Limitation on Director Liability. The Company's certificate of 
incorporation provides that a director of the Company shall not be personally 
liable to the Company or its stockholders for monetary damages for breach of 
fiduciary duty as a director, with certain exceptions under Delaware law. 
This may discourage stockholders from bringing suit against a director for 
breach of fiduciary duty and may reduce the likelihood of derivative 
litigation brought by stockholders on behalf of the Company against a 
director. In addition, the Company's certificate of incorporation provides 
for mandatory indemnification of directors and officers. See "Management -- 
Indemnification of Officers and Directors and Limitation on Directors' 
Liability." 

   23. Absence of Dividends on Common Stock. Since inception, the Company has 
not paid any cash dividends on its Common Stock and it does not anticipate 
paying such dividends in the foreseeable future. The payment of dividends by 
the Company is within the discretion of its Board of Directors and depends 
upon the Company's earnings, capital requirements, financial condition and 
other factors deemed relevant by the Board. The Company intends to retain 
earnings, if any, to finance its operations. See "Dividends." 

   24. Dilution. Purchasers of Common Stock in the Offering will suffer 
immediate dilution of $2.69 per share (or approximately 76.9%) in the net 
tangible book value of their investment from the initial public offering 
price of $3.50 per share of Common Stock. See "Dilution." 

   25. Authorization and Discretionary Issuance of Preferred Stock.  The 
Company's Certificate of Incorporation authorizes the issuance of 5,000,000 
shares of "blank check" preferred stock with such designations, rights and 
preferences as may be determined from time to time by the Board of Directors. 
Accordingly, the Board of Directors is empowered, without stockholder 
approval, to issue preferred stock with dividend, liquidation, conversion, 
voting or other rights which could decrease the amount of earnings and assets 
available for distribution to holders of Common Stock and adversely affect 
the relative voting power or other rights of the holders of the Company's 
Common Stock. In the event of issuance, the preferred stock could be used, 
under certain circumstances, as a method of discouraging, delaying or 
preventing a change in control of the Company. Except for 2,500 shares of 
Series A Preferred Stock authorized for issuance in exchange for the 
cancellation of amounts due to Joel Schoenfeld, Flora Schoenfeld and two 
corporation's affiliated with Mr. Schoenfeld (collectively, the "Schoenfeld 
Parties"), and Dr. Alan Gold, and payment of dividends thereon in additional 
shares of Series A Preferred Stock, the Company has no present intention to 
issue any shares of its preferred stock. However, there can be no assurance 
that the Company will not issue shares of preferred stock in the future. The 
Company has agreed with the Underwriter that, except for issuances disclosed 
in or contemplated by this Prospectus, it will not issue any securities, 
including but no limited to any shares of preferred stock, for a period of 24 
months following the Effective Date, without the prior written consent of the 
Underwriter. See "Certain Transactions" and "Description of Securities -- 
Preferred Stock." 

   26. No Assurance of Public Market; Determination of Public Offering Price; 
Possible Volatility of Market Price for the Common Stock and Warrants. Prior 
to the Offering, there has been no public trading mar- 


                                       15
<PAGE>


ket for the Common Stock or the Warrants. Consequently, the initial public 
offering price of the Common Stock and Warrants and the exercise price and 
other terms of the Warrants were determined through negotiations between the 
Company and the Underwriter and bear no relationship whatsoever to the 
Company's assets, book value per share, results of operations or other 
generally accepted criteria of value. The offering prices of the Common Stock 
and Warrants, as well as the exercise price of the Warrants, should not be 
construed as indicative of their value. There can be no assurance that an 
active trading market for the Common Stock and Warrants will develop after 
the Offering or that, if developed, it will be sustained. As a result, 
investors will be exposed to a risk of a decline in the market prices of the 
Common Stock and Warrants after the Offering. The market prices of the Common 
Stock and Warrants following the Offering may be highly volatile as has been 
the case with the securities of many emerging companies. The Company's 
operating results and various factors affecting the medical device industry 
may impact the market price of the Company's securities to a significant 
degree. In addition, in recent years the stock market has experienced a high 
level of price and volume volatility, and market prices for the securities of 
many companies have experienced wide price fluctuations not necessarily 
related to the operating performance of such companies. There can be no 
assurance that the market price of the Common Stock and the Warrants will not 
experience significant fluctuations or decline below the initial public 
offering price. 

   27. Underwriter's Influence on the Market; Possible Limitations on Market 
Making Activities. A significant number of shares of Common Stock and 
Warrants may be sold to customers of the Underwriter. Such customers 
subsequently may engage in transactions for the sale or purchase of such 
securities through or with the Underwriter. The Underwriter has indicated 
that it intends to act as a market-maker and otherwise effect transactions in 
the Common Stock and Warrants. To the extent the Underwriter acts as a 
market-maker in the Common Stock and Warrants, it may exert a dominating 
influence in the markets for those securities. The prices and liquidity of 
the shares of Common Stock and Warrants may be significantly affected to the 
extent, if any, that the Underwriter participates in such markets. 
Furthermore, the Underwriter may discontinue such activities at any time or 
from time to time. The Underwriter also has the right to act as the Company's 
exclusive agent in connection with any future solicitation of holders of 
Warrants to exercise their Warrants. Unless granted an exemption by the 
Securities and Exchange Commission from Rule 10-6 under the Exchange Act, the 
Underwriter and any other soliciting broker-dealers will be prohibited from 
engaging in any market making activities or solicited brokerage activities 
with regard to the Common Stock and Warrants for a period of up to nine 
business days prior to the solicitation of the exercise of any Warrants until 
the later of the termination of such solicitation activity or the termination 
of any right the Underwriter may have to receive a fee for the solicitation 
of the Warrants. As a result, the Underwriter and such soliciting 
broker-dealers may be unable to continue to make a market for the Common 
Stock and the Warrants during certain periods while the Warrants are 
exercisable. Such a limitation, while in effect, could impair the liquidity 
and market price of the Common Stock and the Warrants. See "Underwriting." 

   28. Possible Delisting. Application has been made for the inclusion of the 
shares of Common Stock and Warrants on The Nasdaq SmallCap Market. There can 
be no assurance that the Common Stock and Warrants will qualify for quotation 
on The Nasdaq SmallCap Market. Furthermore, assuming that the Common Stock 
and Warrants are approved for quotation on The Nasdaq SmallCap Market, there 
can be no assurance that the Company will be able to satisfy specified 
financial tests and market related criteria required for continued quotation 
thereon following the Offering. If the Company is unable to satisfy The 
Nasdaq SmallCap maintenance criteria in the future, the Common Stock and 
Warrants may be delisted from trading on The Nasdaq SmallCap Market, and if 
delisted, trading, if any, would thereafter be conducted in the 
over-the-counter market in the so-called "pink sheets" or the "Electronic 
Bulletin Board" of the National Association of Securities Dealers, Inc. 
("NASD"), and, consequently, an investor could find it more difficult to 
dispose of, or to obtain accurate quotations as to the price of, the 
Company's securities. 

   The Nasdaq Stock Market has recently proposed amendments to its rules 
increasing eligibility and maintenance criteria for The Nasdaq SmallCap 
Market. Existing eligibility criteria for inclusion on The Nasdaq SmallCap 
require, among other things, that an issuer have total assets of $4 million 
and total equity of $2 million, and that the security to be listed has a 
minimum bid price of $3.00 per share. The proposed amendment would require, 
among other things, that an issuer have net tangible assets (i.e., total 
assets less total liabilities and intangible assets) of $4 million (or 
alternatively, net income in two of the most recent three fiscal years of at 


                                       16
<PAGE>


least $750,000, or a market capitalization of $50 million) and that the 
security to be listed has a minimum bid price of $4.00 per share. Existing 
maintenance criteria require, among other things, that an issuer have total 
assets of $2 million and total equity of $1 million and that the listed 
security has a minimum bid price of $1.00. The amendment would require, among 
other things, that an issuer have net tangible assets of $2 million (or 
alternatively net income of $500,000 in two of the most recent three fiscal 
years, or a market capitalization of $35 million) and that the listed 
security has a minimum bid price of $1.00. Adoption of the proposed 
amendments, which are not expected to become effective until after the 
completion of the Offering, would further increase the risk of having the 
Company's Common Stock and Warrants delisted. 

   29. Risk of Low-Priced Securities. The regulations of the Securities and 
Exchange Commission promulgated under the Exchange Act require additional 
disclosure relating to the market for penny stocks in connection with trades 
in any stock defined as a penny stock. Commission regulations generally 
define a penny stock to be an equity security that has a market price of less 
than $5.00 per share, subject to certain exceptions. Unless an exception is 
available, those regulations require the delivery, prior to any transaction 
involving a penny stock, of a disclosure schedule explaining the penny stock 
market and the risks associated therewith and impose various sales practice 
requirements on broker-dealers who sell penny stocks to persons other than 
established customers and accredited investors (generally institutions). In 
addition, the broker-dealer must provide the customer with current bid and 
offer quotations for the penny stock, the compensation of the broker-dealer 
and its salesperson in the transaction, and monthly account statements 
showing the market value of each penny stock held in the customer's account. 
Moreover, broker-dealers who recommend such securities to persons other than 
established customers and accredited investors must make a special written 
suitability determination for the purchaser and receive the purchaser's 
written agreement to a transaction prior to sale. If the Company's securities 
become subject to the regulations applicable to penny stocks, the market 
liquidity for the Company's securities could be severely affected. In such an 
event, the regulations on penny stocks could limit the ability of broker- 
dealers to sell the Company's securities and thus the ability of purchasers 
of the Company's securities to sell their securities in the secondary market. 

   30. Shares Eligible for Future Sale. No assurance can be given as to the 
effect, if any, that future sales of Common Stock, or the availability of 
shares of Common Stock for future sales, will have on the market price of the 
Common Stock from time to time. Sales of substantial amounts of Common Stock 
(including shares issued upon the exercise of warrants or stock options), or 
the possibility of such sales, could adversely affect the market price of the 
Common Stock and Warrants and also impair the Company's ability to raise 
capital through an offering of its equity securities in the future. Upon 
completion of the Offering, the Company will have 2,619,907 shares of Common 
Stock outstanding, of which only the 1,500,000 shares of Common Stock offered 
hereby will be transferable without restriction under the Securities Act. The 
remaining 1,119,907 shares, issued in private transactions, will be 
"restricted securities" (as defined in Rule 144 promulgated under the 
Securities Act) which may be publicly sold only if registered under the 
Securities Act or if sold in accordance with an applicable exemption from 
registration, such as Rule 144. In general, under Rule 144 as currently in 
effect, subject to the satisfaction of certain other conditions, a person, 
including an affiliate of the Company, who has beneficially owned restricted 
securities for at least two years, is entitled to sell (together with any 
person with whom such individual is required to aggregate sales), within any 
three-month period, a number of shares that does not exceed the greater of 1% 
of the total number of outstanding shares of the same class or, if the Common 
Stock is quoted on The Nasdaq Stock Market or a national securities exchange, 
the average weekly trading volume during the four calendar weeks preceding 
the sale. A person who has not been an affiliate of the Company for at least 
three months and who has beneficially owned restricted securities for at 
least three years is entitled to sell such restricted shares under Rule 144 
without regard to any of the limitations described above. Officers, directors 
and other securityholders of the Company owning and/or having rights to 
acquire in the aggregate 3,653,343 shares of Common Stock constituting 
restricted securities, have entered into agreements with the Underwriter not 
to sell or otherwise dispose of any securities of the Company, including 
Common Stock, for a period of 24 months following the Effective Date (the 
"Lock-Up Agreements"), without the prior written consent of the Underwriter, 
which may be granted or withheld in the sole and absolute discretion of the 
Underwriter; provided, however, that if during such 24 month period, the 
Company's shares of Common Stock are subject to a tender offer and holders of 
the Company's Common Stock (other than the current stockholders) agree to 
tender a majority of the outstanding shares of Common Stock to the offeror, 
then the Underwriter shall release all stockholders subject to the Lock-Up 
Agreement from the restrictions imposed thereby solely for the purposes of 


                                       17
<PAGE>


tendering their shares of Common Stock to the offeror pursuant to the terms 
of the tender offer. The Company has registered for resale pursuant to the 
Selling Securityholder Prospectus (i) warrants to purchase 2,500,000 shares 
of Common Stock (having terms identical to the Warrants offered hereby) and 
the shares of Common Stock issuable upon exercise thereof and (ii) 33,436 
shares of Common Stock issuable upon exercise of options, subject to the 
Lock-Up Agreements. Following expiration of the term of the Lock-Up 
Agreements, or the earlier release of the restrictions contained therein, 
1,119,907 shares will become eligible for resale pursuant to Rule 144, 
subject to the volume limitations and compliance with the other provisions of 
Rule 144, assuming the sale of the shares pursuant to the Selling 
Securityholder Prospectus. Furthermore, the holders of the Underwriters' 
Warrants (including the securities issuable upon exercise thereof) have 
demand and piggyback registration rights with respect to the shares of Common 
Stock and Warrants issuable upon exercise of the Underwriters' Warrants. See 
"Description of Securities -- Registration Rights," "Description of 
Securities -- Shares Eligible for Future Sale," "Certain Transactions," 
"Underwriting" and "Selling Securityholder Offering." 

   31. Effect of Issuance of Common Stock Upon Exercise of Warrants and 
Options; Possible Issuance of Additional Options. Immediately after the 
Offering, assuming the Over-Allotment Option is not exercised, the Company 
will have an aggregate of approximately 12,193,000 shares of Common Stock 
authorized but unissued and not reserved for specific purposes and an 
additional 10,187,093 shares of Common Stock unissued but reserved for 
issuance (i) upon exercise of options (including options which may be granted 
in the future pursuant to the Company's stock option plan), (ii) upon 
exercise of warrants (including the Warrants), (iii) upon exercise of the 
Underwriter's Warrants (and the Warrants included therein), (iv) upon 
conversion of a 12 1/2% demand promissory note in the principal amount of 
$125,000, and (v) upon conversion of the Company's Series A Preferred Stock. 
All of such shares may be issued without any action or approval by the 
Company's stockholders. Although there are no present plans, agreements, 
commitments or undertakings with respect to the issuance of additional shares 
or securities convertible into any such shares by the Company, any shares of 
Common Stock issued would further dilute the percentage ownership of the 
Company held by the public stockholders. The Company has agreed with the 
Underwriter that, except for the issuances disclosed in or contemplated by 
this Prospectus, it will not issue any securities, including but not limited 
to any shares of Common Stock, for a period of 24 months following the 
Effective Date, without the prior written consent of the Underwriter. See 
"Underwriting." 

   The exercise of warrants or options and the sale of the underlying shares 
of Common Stock (or even the potential of such exercise or sale) may have a 
depressive effect on the market price of the Common Stock and the Warrants. 
Moreover, the terms upon which the Company will be able to obtain additional 
equity capital may be adversely affected since the holders of outstanding 
warrants and options can be expected to exercise them, to the extent they are 
able, at a time when the Company would, in all likelihood, be able to obtain 
any needed capital on terms more favorable to the Company than those provided 
in the warrants and options. See "Management -- Stock Option Plan," 
"Description of Securities" and "Underwriting." 

   32. Adverse Effect of Redemption of Warrants. Under certain conditions, 
the Warrants may be redeemed by the Company with the prior written consent of 
the Underwriter, at a redemption price of $.05 per Warrant upon not less than 
30 days prior written notice to the holders of such Warrants, provided the 
closing bid price of the Common Stock has been at least $8.00 for 20 
consecutive trading days ending on the third day prior to the date the notice 
of redemption is given. The Warrants will be exercisable until the close of 
business on the day immediately preceding the date fixed for redemption. The 
redemption of the Warrants could force the holders (i) to exercise the 
Warrants and pay the exercise price at a time when it may be disadvantageous 
for the holders to do so, (ii) to sell the Warrants at the then current 
market price when they might otherwise wish to hold the Warrants or (iii) to 
accept the redemption price, which is likely to be substantially less than 
the market value of the Warrants at the time of redemption. See "Description 
of Securities -- Warrants." 

   33. Need for Future Registration of Warrants; State Blue Sky Registration; 
Exercise of Warrants. The Warrants will trade separately upon the completion 
of the Offering. Although the Warrants will not knowingly be sold to 
purchasers in jurisdictions in which the Warrants are not registered or 
otherwise qualified for sale, purchasers may buy Warrants in the after-market 
or may move to jurisdictions in which the Warrants and the shares of Common 
Stock underlying the Warrants are not so registered or qualified. In this 
event, the Company would be unable to issue shares of Common Stock to those 
persons desiring to exercise their Warrants unless 


                                       18
<PAGE>

and until the Warrants and the underlying shares of Common Stock are 
qualified for sale in jurisdictions in which such purchasers reside, or an 
exemption from such qualification exists in such jurisdictions. There can be 
no assurance that the Company will be able to effect any required 
qualification. 

   The Warrants will not be exercisable unless the Company maintains a 
current Registration Statement on file with the Commission through 
post-effective amendments to the Registration Statement containing the 
Prospectus. Although the Company has agreed to file appropriate 
post-effective amendments to the Registration Statement containing the 
Prospectus and to maintain a current Prospectus with respect to the Warrants, 
there can be no assurance that the Company will file post-effective 
amendments necessary to maintain a current Prospectus or that the Warrants 
will continue to be so registered. See "Description of Securities -- 
Warrants." 


                                       19
<PAGE>

                               USE OF PROCEEDS 

   The net proceeds to the Company from the sale of the shares of Common 
Stock and Warrants offered hereby, after deducting underwriting discounts and 
other expenses of the Offering, are estimated to be $4,284,250 ($4,998,738 if 
the Over-Allotment Option is exercised in full). The Company expects to use 
the net proceeds of the Offering as follows: 


<TABLE>
<CAPTION>
                                                       Approximate 
                                                         Amount        Percent 
                                                      -------------   --------- 
<S>                                                   <C>             <C>
Equipment(1)  .....................................    $1,442,000        33.7% 
Marketing, promotion and public relations(2)  .....       585,000        13.7% 
Product development(3)  ...........................       270,000         6.3% 
Repayment of Bridge Notes  ........................     1,000,000        23.3% 
Working capital and general corporate purposes(4)         987,250        23.0% 
                                                      -------------   --------- 
  Total  ..........................................    $4,284,250       100.0% 
                                                      =============   ========= 
</TABLE>

- ------ 
(1) Includes production equipment (mold and inserts, assembly machine, clip
    attachment line, packaging machine and automatic loader), as well as
    furniture, fixtures and equipment for a warehouse facility.
(2) Includes the cost of hiring and retaining a marketing director and expenses
    relating to market research, promotion (including advertising) and public
    relations.
(3) Includes the cost of retaining a research and development officer and the
    cost of developing prototype parts.
(4) Includes working capital to support inventory and accounts receivable. 

   Additional proceeds from the exercise of the Over-Allotment Option and the 
Warrants will be added to the Company's working capital and be available for 
general corporate purposes. Pending application, the Company will invest the 
net proceeds of the Offering in United States government securities, short 
term certificates of deposit, money market securities, investment grade 
commercial paper or other short-term interest-bearing investment-grade 
securities. 

   The Company has not determined the specific allocation of the net proceeds 
within each of the various uses described above. Specific allocations of such 
net proceeds will ultimately depend on the development of the Company's 
products and the related technology and commercial acceptance of its 
products. The Company anticipates, based on currently proposed plans and 
assumptions relating to its operations, that the net proceeds of the Offering 
will be sufficient to satisfy the Company's anticipated cash requirements for 
at least 12 months following the Effective Date. 


                                       20
<PAGE>

                                CAPITALIZATION 

   The following table sets forth the capitalization of the Company (i) as of 
September 30, 1996, and (ii) such capitalization, as adjusted after giving 
effect to the issuance and sale of the 1,500,000 shares of Common Stock and 
2,250,000 Warrants in the Offering and the application of the net proceeds 
thereof. The information set forth below should be read in conjunction with 
the consolidated financial statements and notes thereto appearing elsewhere 
herein and "Management's Discussion and Analysis of Financial Condition and 
Results of Operations." 


<TABLE>
<CAPTION>
                                                                             September 30, 1996 
                                                                      ------------------------------- 
                                                                          Actual        As Adjusted 
                                                                       -------------   -------------- 
<S>                                                                   <C>              <C>
Unearned income in connection with Supply and License Agreements  ..    $ 1,683,788     $ 1,683,788 
Notes due stockholders and affiliates (1)  .........................      1,385,638              -- 
Notes due officers (2)  ............................................        732,135         644,391 
Stockholders' equity: 
Preferred Stock, par value $0.001; 4,997,500 shares authorized; 
  none issued and outstanding at September 30, 1996, and as adjusted             --              -- 
Series A 8% Cumulative Convertible Preferred Stock, par value 
  $0.001; 2,500 shares authorized; none issued and outstanding at 
  September 30, 1996; and 1,269 shares, as adjusted (3) ............             --               1 
Common Stock, par value $0.001; 25,000,000 shares authorized; 
  1,059,001 shares issued and outstanding at September 30, 1996 (4); 
  and 2,619,907 shares issued and outstanding, as adjusted (5) .....          1,059           2,620 
Additional paid-capital  ...........................................        433,941       4,250,258 (6) 
Accumulated deficit  ...............................................     (3,815,158)     (2,046,353)(7) 
Deferred offering costs  ...........................................        (27,500)             -- 
                                                                       -------------   -------------- 
Stockholders' equity (deficit)  ....................................     (3,407,658)      2,206,526 
                                                                       -------------   -------------- 
  Total capitalization  ............................................    $   393,903     $ 4,534,705 
                                                                       =============   ============== 
</TABLE>

- ------ 
(1)  Includes $1,155,565 payable to Joel Schoenfeld, Flora Schoenfeld and two
     companies affiliated with Mr. Schoenfeld (the "Schoenfeld Parties"),
     $113,700 payable to Dr. Alan H. Gold and $116,373 payable to John Frank, a
     director of the Company. On December 31, 1996, the Company issued 1,155
     shares and 114 shares of Series A Preferred Stock to the Schoenfeld Parties
     and Dr. Gold, respectively, in exchange for the cancellation of the amounts
     payable to them. At the Closing, the Company will issue 33,250 shares of
     Common Stock to Mr. Frank in exchange for the cancellation of the amount
     payable to him. See "Certain Transactions" and "Description of Securities
     -- Series A Preferred Stock."
(2)  Includes amounts accrued for compensation payable to Joel Schoenfeld
     ($644,391) and David Chabut ($75,244), and amounts payable to Mr. Chabut
     for certain advances ($12,500). The Company has agreed that it will not pay
     such compensation due Mr. Schoenfeld prior to the second anniversary of the
     Closing, without the prior written consent of the Underwriter. Mr. Chabut
     exercised options to purchase 16,143 shares of Common Stock in December
     1996 and paid the exercise price thereof by cancellation of a portion of
     amounts payable to him, and he has advised the Company that he intends to
     exercise options to purchase an additional 4,370 shares of Common Stock at
     the Closing and pay the exercise price thereof with the balance of the
     amount payable to him. See "Management -- Summary Compensation Table" and
     "Certain Transactions."
(3)  Represents shares issued to the Schoenfeld Parties and Dr. Alan H. Gold in
     exchange for the cancellation of amounts payable to them. See footnote (2)
     above, "Certain Transactions" and "Description of Securities -- Series A
     Preferred Stock."
(4)  Does not include (i) 76,185 shares reserved for issuance upon exercise of
     outstanding options, at an exercise price of $3.50, expiring at various
     dates from February 22, 1999 through June 30, 1999; (ii) 35,715 shares
     reserved for issuance upon conversion of the Company's 12 1/2% demand
     promissory note in the principal amount of $125,000 following the Closing;
     (iii) 33,250 shares to be issued at the Closing to a director of the
     Company in exchange for the cancellation of amounts payable to him
     ($116,373 as of September 30, 1996); and (iv) 7,143 shares reserved for
     issuance to a consultant of the Company in exchange for the cancellation of
     $25,000 of indebtedness. See "Certain Transactions."


                                       21
<PAGE>

(5)  Includes (i) 33,250 shares issuable to a director of the Company at the
     Closing in exchange for the cancellation of amounts payable to him
     ($116,373 as of September 30, 1996); (ii) 7,143 shares issued to a
     consultant in December 1996 in exchange for the cancellation of $25,000 of
     indebtedness; and (iii) 16,143 shares issued to an officer of the Company
     in December 1996, and 4,370 shares to be issued to said officer at Closing,
     upon exercise of stock options. Does not include (i) 55,672 shares reserved
     for issuance upon exercise of outstanding options, at an exercise price of
     $3.50, which expire at various dates from February 22, 1996 through June
     30, 1999; (ii) 35,715 shares reserved for issuance upon conversion of the
     Company's 12 1/2% demand promissory note in the principal amount of
     $125,000 following the Closing; and (iii) 4,750,000 shares to be reserved
     for issuance upon exercise of the Warrants and the warrants to be issued
     upon automatic conversion of the Bridge Warrants on the Effective Date. See
     "Certain Transactions" and "Description of Securities."
(6)  Gives effect to the reclassification of $1,948,805 of S corporation
     undistributed losses to paid-in capital.
(7)  Give effect to the write-off of debt issuance costs of $180,000 associated
     with the Bridge Financing.

                                   DILUTION 

   At September 30, 1996, the net tangible book value (deficit) of the 
Company was ($2,312,893), or approximately ($2.14) per share of Common Stock, 
as adjusted for (i) the cancellation of approximately $1,269,000 due to 
certain stockholders and affiliates of the Company in exchange for 1,269 
shares of Series A Preferred Stock in December 1996, (ii) the exercise of 
options to purchase 16,143 shares by an officer of the Company in December 
1996, (iii) the cancellation of $25,000 of indebtedness payable to a 
consultant in exchange for 7,143 shares of Common Stock in December 1996, and 
(iv) the issuance and sale during the fourth quarter of 1996 of $1,000,000 
principal amount of Bridge Notes and Bridge Warrants to purchase 2,500,000 
shares of Common Stock, for a total purchase price of $1,000,000, in the 
Bridge Financing. The net tangible book value of the Company is the tangible 
assets (total assets less intangible assets, deferred financing and offering 
costs) less total liabilities. Dilution per share represents the difference 
between the amount paid per share of Common Stock by investors in the 
Offering, attributing no value to the Warrants. 

   After giving effect to (i) the issuance and sale of 1,500,000 shares of 
Common Stock and 2,250,000 Warrants in the Offering, (ii) the cancellation of 
amounts payable to a director of the Company ($116,373 as of September 30, 
1996) at Closing in exchange for the issuance of 33,250 shares of Common 
Stock, (iii) the cancellation of amounts payable to an officer of the Company 
($15,295) at Closing in exchange for the issuance of 4,370 shares of Common 
Stock, but without taking into account any other changes in net tangible book 
value subsequent to September 30, 1996, other than those described in the 
immediately preceding paragraph, the pro forma net tangible book value of the 
Company as of September 30, 1996 would have been $2,130,526, or $0.81 per 
share. This represents an increase in net tangible book value per share of 
$2.95 to the Company's existing stockholders and an immediate dilution of 
$2.69 per share (or 76.9% of the offering price) to new stockholders 
purchasing shares of Common Stock in the Offering. The following table 
illustrates this dilution on a per share basis: 


<TABLE>
<CAPTION>
<S>                                                    <C>             <C>
Public offering price per share  ................                      $3.50 
Net tangible book value before Offering  ........       ($2.14) 
Increase attributable to new investors  .........        $2.95 
                                                       --------- 
Pro forma net tangible book value after Offering                        0.81 
                                                                       ------- 
Dilution to new investors  ......................                      $2.69 
                                                                       ======= 
</TABLE>


                                       22
<PAGE>

   The information in the following table summarizes through September 30, 
1996, as adjusted for (A) the issuance of 33,250 shares of Common Stock to a 
director of the Company at the Closing in exchange for the cancellation of 
amounts due to him ($116,373 as of September 30, 1996), (B) 7,143 shares 
issued to a consultant in December 1996 in exchange for the cancellation of 
$25,000 of indebtedness, and (C) the issuance of 16,143 shares and 4,370 
shares of Common Stock to an officer of the Company in December 1996 and at 
Closing, respectively, upon exercise of options, (i) the number and 
percentages of shares of Common Stock purchased from the Company, (ii) the 
amount and percentage of cash consideration paid and (iii) the average price 
per share paid to the Company, by existing stockholders and by new investors 
pursuant to the Offering: 

<TABLE>
<CAPTION>
                                                                               Average 
                                                                                Price 
                            Shares Purchased      Total Consideration Paid    Per Share 
                        -----------------------   ------------------------   ----------- 
<S>                     <C>            <C>         <C>            <C>        <C>
Existing stockholders     1,119,907      42.7%     $  648,168       11.0%       $0.58 
New investors  .......    1,500,000      57.3%      5,250,000       89.0%       $3.50 
                         -----------   --------    ------------   --------   ----------- 
                          2,619,907     100.0%     $5,898,168      100.0% 

</TABLE>

   The information in the foregoing table does not give effect to 55,672 
shares reserved for issuance upon exercise of outstanding options, at an 
exercise price of $3.50 per share, which expire at various dates from 
February 22, 1996 through June 30, 1999, (ii) 35,715 shares reserved for 
issuance upon conversion of the Company's 12 1/2% demand promissory note in 
the principal amount of $125,000 following the Closing, (iv) 4,750,000 shares 
to be reserved for issuance upon exercise of the Warrants and the warrants to 
be issued upon automatic conversion of the Bridge Warrants on the Effective 
Date, (v) 562,500 shares reserved for issuance upon exercise of the 
Over-Allotment Option and the Warrants included therein, and (vi) 375,000 
shares reserved for issuance pursuant to the Underwriter's Warrants and the 
Warrants included therein. See "Capitalization" and "Underwriting." 

                               DIVIDEND POLICY 


   The payment of dividends by the Company is within the discretion of its 
Board of Directors and depends in part upon the Company's earnings, capital 
requirements and financial condition. Since its inception, the Company has 
not paid any cash dividends on its Common Stock and does not anticipate 
paying such dividends in the foreseeable future. The Company intends to 
retain earnings, if any, to finance its operations. 


                                       23
<PAGE>

                 SELECTED CONSOLIDATED FINANCIAL INFORMATION 

   The following table sets forth selected consolidated financial information 
regarding the results of operations and financial position of the Company for 
the periods and at the dates indicated. The selected consolidated financial 
information as of December 31, 1995 and for the fiscal years ended December 
31, 1994 and 1995 have been derived from the audited consolidated financial 
statements of the Company for those fiscal years. The selected consolidated 
financial information as of September 30, 1996 and for the nine months ended 
September 30, 1995 and 1996 are derived from the unaudited interim 
consolidated financial statements of the Company and include, in the opinion 
of management, all adjustments (consisting only of normal recurring 
adjustments) necessary for the fair presentation of its results of operations 
for such periods. The results of operations for the nine months ended 
September 30, 1996, are not necessarily indicative of the results to be 
expected for the full year. This information should be read in conjunction 
with the Company's consolidated financial statements (including the notes 
thereto) and the Company's unaudited interim consolidated financial 
statements appearing elsewhere herein, and "Management's Discussion and 
Analysis of Financial Condition and Results of Operations." 

STATEMENT OF OPERATIONS DATA: 

<TABLE>
<CAPTION>
                                                                                   Nine Months Ended 
                                                 Year Ended December 31               September 30 
                                              ----------------------------   ------------------------------ 
                                                   1994           1995           1995            1996 
                                               ------------   ------------    ------------   -------------- 
<S>                                           <C>             <C>             <C>            <C>
Sales  .....................................    $       --     $1,106,930     $       --      $  282,000 
Cost of sales  .............................            --      1,016,530             --         223,931 
                                               ------------   ------------    ------------   -------------- 
 Gross profit  .............................            --         90,400             --          58,069 
                                               ------------   ------------    ------------   -------------- 
Expenses: 
 Marketing  ................................        80,162        115,431        111,346          97,699 
 Product development  ......................       202,881        299,498        258,736          55,428 
 General and administrative  ...............       331,396        433,012        374,193         687,856 
 Interest  .................................        47,414        153,473        126,532         149,877 
 Royalties  ................................            --         35,000         25,000          70,000 
                                               ------------   ------------    ------------   -------------- 
   Total expenses  .........................       661,853      1,036,414        895,807       1,060,860 
                                               ------------   ------------    ------------   -------------- 
Net loss  ..................................   ($  661,853)   ($  946,014)   ($  895,807)    ($1,002,791) 
Net loss per common share  .................   ($     0.65)   ($     0.89)   ($     0.85)    ($     0.95) 
Weighed average number of common and common 
  equivalent shares outstanding ............     1,025,608      1,059,001      1,056,218       1,059,001 

</TABLE>

BALANCE SHEET DATA: 

<TABLE>
<CAPTION>
                                     December 31, 1995     September 30, 1996 
                                     -----------------      ------------------ 
<S>                                  <C>                    <C>
Working capital (deficit)  .....        ($1,462,499)           ($ 536,442) 
Total assets  ..................            606,917             1,234,486 
Accumulated deficit  ...........         (2,812,367)           (3,815,158) 
Stockholders' equity (deficit)           (2,377,367)           (3,407,658) 
</TABLE>


                                       24
<PAGE>

                    MANAGEMENTS DISCUSSION AND ANALYSIS OF 
                FINANCIAL CONDITION AND RESULTS OF OPERATIONS 

GENERAL 

   The following discussion and analysis should be read in conjunction with 
the consolidated financial statements, including the notes thereto, appearing 
elsewhere in this Prospectus. 

   Since inception, the Company's operations have consisted primarily of the 
design, development, testing and evaluation of its locking clip syringes, 
production processes, and production equipment, which include molds, inserts 
and assembly machines. As of September 30, 1996, UNIVEC had no sales of its 
locking clip syringes, except for sales of samples to UNICEF, which were 
hand-assembled by Sherwood. In the fourth quarter of 1995 and in the first 
quarter of 1996, the Company sold lancets manufactured by Sherwood to one 
distributor, which resold the lancets to retailers in Canada and the United 
States. In the second quarter of 1996, the Company entered into an agreement 
to buy syringe components from Sherwood (the "Sherwood Supply Agreement"). In 
connection with the Sherwood Supply Agreement, Sherwood sold all of its 
right, title and interest in and to the production mold for the plunger, 
including the mold inserts and insert base (together, the "Plunger Mold") to 
the Company in consideration for an option to enter into a non-exclusive 
license to manufacturer and sell the Company's locking clip syringes in the 
United States. The Company also entered into a lease agreement with Sherwood 
pursuant to which it leased back the Plunger Mold to Sherwood (the "Equipment 
Lease") for a period of six years for use in the manufacture and production of
the plungers as part of the assembly of single-use syringes using the Company's
proprietary design specifications. Sherwood is required to make aggregate rental
payments of $1,946,016 in 36 equal consecutive monthly installments of $54,056,
over the first three years of the term of the Equipment Lease. In consideration
for said lease payments, the Company agreed to pay Sherwood 14.925% of the
cumulative invoiced amount of components in excess of $3,350,000 up to a maximum
invoiced amount of $6,700,000 (or a maximum of $500,000). In addition, certain
stockholders of the Company agreed to pay Sherwood up to $1 million (less
14.925% of each dollar paid by the Company under the Sherwood Supply Agreement)
in the event the Company fails to pay a cumulative invoiced amount of $6.7
million over the first three years of the Sherwood Supply Agreement. In July
1996, the Company sold the Plunger Mold, subject to the Equipment Lease,
together with the Company's right to the payments under the Equipment Lease, to
a financial institution for net cash consideration of $1,600,000 ($1,837,904
less expenses of approximately $238,000). In connection with such sale, the
financial institution agreed to sell the Plunger Mold back to the Company for a
nominal amount upon expiration of the term of the Equipment Lease. The Company
has deferred recognition of approximately $1,684,000, which equals the net
proceeds from the lease payments received from Sherwood and the 34 payments sold
to a financial institution. Unearned income in connection with these agreements
will be recognized upon the sale of the Company's locking clip syringes which
include components supplied by Sherwood under the Sherwood Supply Agreement.
See "Business -- Suppliers."

   In the United States, the Company's products are subject to regulation by 
the FDA. In December 1994, the Company was granted 510(k) pre-marketing 
approval by the FDA for its locking clip syringe. In addition, the FDA 
requires the Company to be in compliance with GMP requirements and to 
demonstrate that its devices are safe and effective. At any time, the FDA can 
audit the Company's compliance with GMP requirements and can require the 
Company to demonstrate that its products are safe and effective. See "Risk 
Factors -- Government Regulation." 

   The Company has incurred net losses for each period since its inception. 
The Company expects operating losses to continue until such time, if ever, as 
the Company's locking clip syringes achieve sufficient market acceptance to 
generate significant sales. See "Risk Factors -- Continuing Losses; 
Accumulated Deficit; Working Capital Deficit," " Risk Factors -- Limited 
Operating History" and "Risk Factors -- Product Acceptance; Demand for 
Locking Clip Syringes." 

RESULTS OF OPERATIONS 

Nine Months Ended September 30, 1996 As Compared to Nine Months Ended 
September 30, 1995 

   Sales. Sales for the nine months ended September 30, 1996 (the "1996 
interim period") were approximately $282,000. Although the Company had no 
sales of its locking clip syringes during the 1996 interim period, it sold 
lancets manufactured by Sherwood to one distributor, which resold the lancets 
to retailers in Canada and the United States. The Company had no sales of any 
product during the nine months ended September 30, 1995 (the "1995 interim 
period"). 


                                       25
<PAGE>


   Cost of Sales. Cost of sales for the 1996 interim period was approximately 
$224,000, and includes the purchase of lancets from Sherwood and freight 
charges. Since the Company had no sales in the 1995 interim period, cost of 
sales for that period was zero. 

   Marketing. Marketing expenses for the 1996 interim period (approximately 
$98,000) decreased by approximately $13,000, or 12%, as compared to the 1995 
interim period (approximately $111,000), due to reduced spending on 
advertising and promotion. 

   Product Development. Product development expense for the 1996 interim 
period (approximately $55,000) decreased by approximately $204,000, or 79%, 
as compared to the 1995 interim period (approximately $259,000), due to a 
reduction in both legal fees incurred for patent filings and expenses 
relating to product and equipment development for its locking clip syringe. 

   General and Administrative. General and administrative expenses for the 
1996 interim period (approximately $688,000) increased by approximately 
$314,000, or 84%, as compared to the 1995 interim period (approximately 
$374,000), due to the hiring in September 1995 of a full-time financial 
officer and legal fees incurred in connection with the Sherwood Supply 
Agreement, financing transactions and general corporate matters. 

   Interest. Interest expense for the 1996 interim period (approximately 
$150,000) increased by approximately $23,000, or 18%, as compared to the 1995 
interim period (approximately $127,000), due to increases in notes payable 
weighted for the period of time the indebtedness was outstanding. 

   Royalties. Royalty expense for the 1996 interim period ($70,000) increased 
by $45,000, or 180%, as compared to the 1995 interim ($25,000) as a result of 
certain payments made to secure licensed rights for patents covering two 
locking devices for hypodermic syringes utilizing locking apparatuses or 
methods different than those covered by the Company's locking clip patents. 
During the 1995 interim period, the Company made payments to secure licensed 
rights relating to another patent. The Company licensed these patents to 
exclude others from using these inventions and/or to develop a 3cc locking 
syringe. 

   Net Loss. The net loss for the 1996 interim period (approximately 
$1,003,000) increased by approximately $107,000, or 12%, as compared to the 
net loss for the 1995 interim period (approximately $896,000), due primarily 
to higher royalty and general and administrative expenses. This increase was 
offset partially by gross profits from resales. Because the Company elected 
to be treated as an S corporation for 1995, the net loss for that year was 
passed through to its stockholders. The accumulated deficit of approximately 
$1,866,000 at the end of Fiscal 1994, when the Company was treated as a C 
corporation, is available to offset future net income after the Company's tax 
status returns to a C corporation in 1997 as a result of the Offering. 

Fiscal Year Ended December 31, 1995 As Compared to Fiscal Year Ended December 
31, 1994 

   Sales. Sales for the fiscal year ended December 31, 1995 ("Fiscal 1995"), 
were approximately $1,107,000 and resulted primarily from resales of lancets 
manufactured by Sherwood to one distributor and sales of syringes 
manufactured by INSERPOR, which did not utilize the Company's locking clip. 
During Fiscal 1995, the Company had no sales of its locking clip syringes. 
During the fiscal year ended December 31, 1994 ("Fiscal 1994"), the Company 
had no sales of any product. 

   Cost of Sales. Cost of sales for Fiscal 1995 was approximately $1,017,000, 
and includes the purchase of lancets and syringes, as well as freight 
charges. Since the Company had no sales in Fiscal 1994, cost of sales for 
that year was zero. 

   Marketing. Marketing expenses for Fiscal 1995 (approximately $115,000) 
increased by approximately $35,000, or 44%, as compared to Fiscal 1994 
(approximately $80,000). The increase is due primarily to increased 
advertising and other marketing expenses. 

   Product Development. Product development expense for Fiscal 1995 
(approximately $299,000) increased by approximately $96,000, or 48%, as 
compared to Fiscal 1994 (approximately $203,000). The increase is due 
primarily to legal fees for patent filings and product and equipment 
development for the Company's locking clip syringe. 


                                       26
<PAGE>


   General and Administrative. General and administrative expenses for Fiscal 
1995 (approximately $433,000) increased by approximately $102,000, or 31%, as 
compared to Fiscal 1994 (approximately $331,000). The increase is due 
primarily to increased staffing and related payroll expenses. 

   Interest. Interest expense for Fiscal 1995 (approximately $153,000) 
increased by approximately $106,000, or 225%, as compared to Fiscal 1994 
(approximately $47,000). The increase is due primarily to increased 
indebtedness ($765,000) incurred in connection with the purchase of assembly 
equipment and operations. In July 1996, the Company repaid indebtedness of 
approximately $632,000, plus accrued interest of approximately $32,000 with 
the proceeds from the sale of the Equipment Lease to a financial institution. 

   Royalties. Royalty expense for Fiscal 1995 was $35,000 as a result of 
certain payments made to secure licensed rights to a patent covering a 
locking device for hypodermic syringes, which utilizes a locking apparatus or 
method different than that covered by the Company's locking clip patents. The 
Company licensed this patent to exclude others from using this invention 
and/or to develop a 3cc locking syringe. The Company had no royalty expense 
for Fiscal 1994. 

   Net Loss. The net loss for Fiscal 1995 (approximately $946,000) increased 
by approximately $284,000, or 43%, as compared to the net loss for the Fiscal 
1994 (approximately $662,000) due to increased expenses for all expense 
categories. This increase was offset partially by gross profits from resales 
of lancets and syringes, which do not utilize the Company's locking clip. 
Because the Company elected to be treated as an S corporation for Fiscal 
1995, the net loss for that year was passed through to its stockholders. The 
accumulated deficit of approximately $1,866,000 at the end of Fiscal 1994, 
when the Company was treated as a C corporation for tax purposes is available 
to offset future net income after the Company's tax status returns to a C 
corporation in 1997 as a result of the Offering. 

LIQUIDITY AND CAPITAL RESOURCES 

   Since inception, the Company's expenses have exceeded gross profits from 
resales of hypodermic devices. Operations have been funded primarily from (a) 
advances from affiliates and stockholders, the issuance of notes, and the 
sale of equity securities (approximately $2,421,000) and (b) the receipt of 
two payments under the Sherwood Lease Agreement and the assignment of the 
remaining 34 payments (approximately $1,684,000). In the fourth quarter of 
1996, the Company received net proceeds of $853,000 from the issuance and 
sale of $1,000,000 principal amount of Bridge Notes and Bridge Warrants to 
purchase 2,250,000 shares of Common Stock, for a total purchase price of 
$1,000,000. See "Business -- Supplies," "Certain Transactions" and 
"Description of Securities -- Bridge Financing." 

   The Company used cash from operating activities in Fiscal 1995 and the 
1996 interim period. Net losses in each of these periods greatly affected net 
cash from operations. In Fiscal 1995, the Company used cash from operations 
of approximately ($530,000): (a) the increases to cash from operating 
activities were mostly from accounts payable and accrued expenses of 
approximately $426,000 (including $171,000 payable to two officers) and 
issuance of Common Stock for services of $35,000, and (b) the decreases to 
cash from operating activities were primarily from a net loss of 
approximately ($946,000) and accounts receivable of approximately ($63,000). 
In the 1996 interim period, the Company used cash from operations of 
approximately ($658,000): (a) the increases to cash from operating activities 
were mostly from accounts payable and accrued expenses of approximately 
$507,000 (including $97,000 payable to two officers), and (b) the decreases 
to cash from operating activities were primarily from a net loss of 
approximately ($1,003,000), accounts receivable of approximately ($91,000), 
and inventory of syringe components available for production of approximately 
($86,000). 

   The Company's investing activities have consisted primarily of 
expenditures for production equipment, which totaled approximately $374,000 
and $449,000 in Fiscal 1995 and the 1996 interim period, respectively. The 
expenditures for Fiscal 1995 and the 1996 interim period were for assembly 
equipment and tools and dies to produce the Company's proprietary clip. As of 
September 30, 1996, the Company is committed to pay the balances of these 
purchase orders (approximately $135,000) in order to take delivery of this 
production equipment for its first syringe line located at Harmac in Buffalo, 
New York. The Company intends to use a portion of the net proceeds from the 
Bridge Financing to pay for this commitment. The Company intends to use a 
portion of the net proceeds of the Offering to purchase a clip-attachment 
line for INSERPOR in Portugal, a second production line for Harmac in 
Buffalo, New York, and furniture, fixtures and equipment for a warehouse 
facility (approximately $1,442,000). 


                                       27
<PAGE>


   Cash provided by financing activities from inception through September 30, 
1996 is comprised of (a) advances from affiliates and stockholders with 
accrued interest of approximately $1,386,000, (b) the sale of equity 
securities of approximately $370,000, (c) the issuance of notes of 
approximately $915,000, (d) notes due officers of approximately $732,000 
(including $720,000 for unpaid compensation), and (e) the proceeds of two 
lease payments under the Equipment Lease as well as the assignment of the 
remaining 34 lease payments of approximately $1,684,000. The Company used 
part of the proceeds from the sale of Equipment Lease payments to repay notes 
(including accrued interest) of approximately $632,000 and bank debt of 
approximately $250,000. 

   The Company expects to incur additional operating losses and cash 
requirements at least through 1997. These losses will continue until such 
time as the Company builds up sufficient sales to offset expenses, which 
include continuing product and machine development for new syringe products. 
The timing and amounts of these expenditures will depend on many factors, 
some of which are beyond the Company's control, such as the progress of the 
Company's product development projects and market acceptance of the Company's 
products. The Company expects that the net proceeds of the Offering, together 
with cash flow from operations, will be sufficient to finance its operations 
for the 12 months following the Effective Date. 

   The Company's consolidated financial statements for the year ended 
December 31, 1995, indicate that there is substantial doubt about the 
Company's ability to continue as a going concern due to the Company's need to 
attain profitable operations and to obtain adequate long-term financing. See 
Note 2 of Notes to the Company's consolidated financial statements appearing 
elsewhere herein. 



                                       28
<PAGE>

                                   BUSINESS 

   UNIVEC develops and markets safety hypodermic syringes designed to protect 
the healthcare worker and patient against cross-infection. The Company also 
sells and intends to develop other hypodermic devices. The Company has 
commenced marketing its 1cc locking clip syringes, which are designed to make 
accidental or deliberate reuse difficult, and plans to distribute them 
beginning in the first quarter of 1997. The accidental or deliberate reuse of 
syringes is a frequent cause of the spread of the human immunodeficiency and 
hepatitis viruses, as well as other blood-borne pathogens. The Company has 
received 510(k) clearance from the U.S. Food and Drug Administration to 
market its locking clip syringes in the United States. 

   In addition to marketing its safety syringes, the Company resells medical 
devices of other companies (e.g., traditional disposable syringes and 
lancets, which are hypodermic devices used in conjunction with blood 
testing). To date, the Company's revenues have been derived almost 
exclusively from resales of traditional disposable devices and lancets. The 
Company seeks to resell other medical devices that promote safety and 
complement its hypodermic syringes. 

PROBLEMS ASSOCIATED WITH TRADITIONAL DISPOSABLE SYRINGES 

   Accidental or deliberate reuse of disposable syringes poses a serious risk 
of transmitting HIV-AIDS, hepatitis and other blood-borne pathogens for 
patients and injection drug users. Disposable syringes are used traditionally 
in developed countries and by many relief agencies such as UNICEF and WHO. 

   Intravenous drug users, who share syringes or use syringes discarded by 
hospitals, medical clinics and laboratories, doctors or diabetic patients, 
are extremely susceptible to HIV, hepatitis and other blood-borne pathogens. 
An article in the May 1996 American Journal of Public Health for Disease 
Control written by an epidemiologist for the Center for Disease Control and 
Prevention estimates that nearly half of all new HIV infections are occurring 
in intravenous drug users ("IDUs"). The article indicates that in New York 
City the number of IDUs at risk (69,000) exceeds the number of men who have 
sex with other men at risk ("MSM"), and that the number of IDUs at risk in 
Chicago (10,500) and Detroit (3,460) is 87% and 71%, respectively, of the 
number of MSMs at risk in those cities. 

   Relief agencies, including UNICEF and WHO, administered almost a billion 
injections to women and children through immunization programs in developing 
countries in 1995. WHO reported that surveys carried out in four of its six 
regions indicated that up to a third of immunization injections were 
unsterile. But immunization injections account for less than 10% of 
injections administered within the health sector. The United Nations 
estimates that more than half of all non-immunization injections in 
developing countries are unsafe. According to an article in the New York 
Times on July 7, 1996, an estimated 21.8 million adults and children 
worldwide are infected with HIV, 90% of whom live in developing countries. 

   As a result of the findings in the United States and developing countries, 
public health officials, including C. Everett Koop (the former Surgeon 
General of the United States), have encouraged the medical industry to 
develop safer syringes to prevent the spread of blood-borne pathogens, such 
as HIV and hepatitis. In 1995, the House of Delegates -- American Medical 
Association requested "manufacturers of disposable hypodermic needles and 
syringes to adopt designs to prevent reuse and to include in the packaging 
clear directions for their correct disposal." In late 1995, UNICEF 
recommended "the use of auto-destruct syringes instead of disposable, single 
use syringes in order to avoid the hazards of unsafe injection practices." In 
1996, Brazil adopted a law requiring disposable syringes manufactured or 
marketed in that country to include a safety device to prevent its reuse. 
During 1996, New York State enacted legislation authorizing a limited number 
of pilot projects to test the practicality and effectiveness of difficult to 
reuse syringes. Such pilot tests are to be conducted, subject to funding, in 
state-operated facilities, such as prisons, hospitals, youth detention 
facilities and development centers. 

   As a result of the increase in the incidence of HIV-AIDS cases, there has 
also been considerable discussion concerning over-the-counter sales of 
non-prescription syringes and needle exchange programs, in which intravenous 
drug users exchange used syringes for sterile syringes. However, political 
and social concerns that over-the-counter sales of non-prescription syringes 
and needle exchange programs encourage and condone illegal drug 



                                       29
<PAGE>


use have limited the access of intravenous drug users to sterile syringes, 
including those with the added safety feature of a locking device to 
discourage reuse. Nevertheless, 41 states, including Connecticut, Florida, 
Ohio, Michigan, Texas and Virginia, have legalized over-the-counter sales of 
non-prescription syringes. 

   Since the introduction of the disposable syringe in the late 1940's, two 
types of features have been developed to deter the spread of blood-borne 
pathogens as a result of accidental or deliberate reuse of syringes -- 
needle-stick prevention devices and difficult to reuse syringes. 

NEEDLE STICK PREVENTION 

   Needle-stick prevention devices are designed to prevent accidental 
puncture injuries to health care workers and patients before, during, and 
after the use of hypodermic syringes and needles. Statistics indicate that 
less than 1% of all reported HIV infections in the United States are 
attributed to needle-stick injuries. Needle-stick prevention devices are not 
substitutes, in most cases, for features that render a syringe difficult to 
reuse; however, they can be combined with devices that make a syringe 
difficult to reuse. Needle-stick prevention methods include: 

   Retracting Needles, which through mechanical devices incorporated in the 
syringe, pull back the needle into the barrel after use. These devices are 
effective needle-stick prevention devices; however, operators must manually 
trigger the retraction of needles. Retracting needle devices that 
automatically trigger with a single use of the syringe can render the syringe 
design difficult to reuse. However, such devices are prone to malfunction and 
are costly to manufacture due to the complexity of the mechanics required to 
retract the needle. 

   Self-Destruct Needles, which permit the needle to be collapsed or deformed 
into a shape which cannot result in a needle-stick injury. Although 
self-destruct needle devices are mechanically simpler than retracting needle 
devices, less prone to malfunction and less costly to manufacture, such 
devices are effective only if the operator triggers the self-destruct 
feature. 

   Extendible Barrel Sleeves, which enclose the barrel of the syringe in a 
second cylinder which the operator extends before and after use to cover the 
tip of the needle. The extendible barrel sleeves often lock in their extended 
position after use. In virtually all designs, the operator of the syringe 
must manually extend the barrel sleeve after use. The sleeve does not prevent 
multiple use of the syringe before the operator encloses the barrel. However, 
extendible barrel sleeves are more cost-effective than the other alternatives 
and can be combined with a device that makes the syringe difficult to reuse. 
Becton Dickinson and Sherwood distribute traditional (1cc and 3cc) syringes 
with extendible barrel sleeves called safety syringes at a wholesale price of 
$0.18 to $0.21. 

DIFFICULT TO REUSE SYRINGES 

   To the Company's knowledge, only Bader and Becton-Dickinson distribute 
commercially, a line of difficult to reuse syringes, none of which allow for 
aspiration. Both companies developed their syringes for WHO and UNICEF 
immunization programs. 

   Relative to the Bader and Becton-Dickinson syringes, the Company believes 
that its 1cc locking clip syringes are more effective and that they are 
competitively priced. Unlike its competitors, the Company markets a locking 
clip syringe with a 1cc barrel, which is ideal for dispensing .05cc to .95cc 
dosages of medicine (e.g., allergy, immunization and insulin medicines). It 
is more difficult to deliver .05cc to .95cc dosages accurately with a syringe 
barrel that is greater than 1cc. Also unlike its competitors, the Company 
offers an aspirating syringe that healthcare workers can lock. Healthcare 
workers need aspirating syringes to mix medications in the syringe barrel and 
inject medications intravenously. Furthermore, the Company believes that 
aspirating syringes are preferred by diabetes patients and needle-exchange 
programs. 

 BADER 

   The Bader DestroJect syringe is a non-aspirating syringe developed for use 
with WHO's and UNICEF's Expanded Programme on Immunization ("EPI") 
manufactured since 1992 by Bader, a German machine tool manufacturer. The 
DestroJect syringe, available in a 1.5 cc size, delivers a .5cc dose, which 
is the dosage for many immunizations. To deliver a dosage other than .5cc, 
the Company believes that Bader would have to 


                                       30
<PAGE>


modify components of the DestroJect syringe. Bader can supply DestroJect 
syringes in a special dispensing carton which doubles as the disposal box for 
used syringes. The disposal box is designed to incinerate the used syringes 
reducing them to ash and an inert block of plastic and metal residue. 

 BECTON-DICKINSON 

   The Becton-Dickinson SOLOSHOT syringe is a non-aspirating syringe 
specifically designed for the EPI. Becton-Dickinson can package the SOLOSHOT 
syringes in an incineration box similar to that used by Bader. The SOLOSHOT 
syringe, available in a 3cc size, delivers a .5cc dose, which is the dosage 
for many immunizations. To deliver a dosage other than .5cc, the Company 
believes that Becton-Dickinson would have to modify components of the 
SOLOSHOT syringe. 

 UNIVEC 

   The Company has developed a 1cc locking clip syringe for aspirating and 
non-aspirating applications, which is ideally suited for dispensing accurate 
dosages of allergy, immunization and insulin medicines. The Company's 1cc 
locking clip syringe can deliver dosages of up to .95cc. The non-aspirating 
model is set at a specific nominal capacity during assembly (e.g., 0.5cc for 
many immunizations) and does not allow the user to inject more than one 
dosage of that amount. Conversely, the health-care worker must lock the 
aspirating syringe to disable it, and until he does so, the operator can 
depress and retract the plunger freely. 

   When the non-aspirating syringes is assembled, the syringe clip is placed 
on the ratcheted plunger in the position needed to limit dosage as desired, 
and it engages the barrel. When the operator depresses the plunger, the clip 
travels down the barrel by an equal distance. Withdrawal of the plunger by 
any amount embeds the prongs into the barrel and the user cannot retract the 
plunger. The ability of the clip is dependent on a combination of materials, 
as well as on machining and forming the clip within tolerances of less than 
 .005 of an inch. 

   The Company's 1cc, non-aspirating, syringe was developed for the needs of 
immunization programs of EPI. Using existing components, the Company can 
limit its non-aspirating syringe to any dosage between .05cc and .95cc; 
however, the Company will have to modify its existing assembly machine to 
produce syringes with a nominal dosage less than .95cc. Recently, the EPI has 
prioritized its program for immunizing children under one for tuberculosis 
("TB"). In 1997 for TB immunization, the EPI expects to vaccinate 100 million 
children and to buy 100 million 1cc tuberculin syringes. The dosage for a TB 
vaccination is .05cc. After the Company modifies its assembly machine, it 
will be able to produce a syringe limited to a nominal dosage amount of 
 .05cc. Without modifications to components, the difficult to reuse syringes 
of Bader and Becton-Dickinson can only deliver a dosage of .5cc. For the EPI, 
the Company plans to distribute its locking clip syringes in incinerating 
cartons similar to those distributed by Bader and Becton-Dickinson. 

   The Company's 1cc aspirating syringe, intended for the health-care worker 
who frequently needs to inject medication intravenously and/or mix 
medications, works similarly to the non-aspirating model, except that the 
clip prongs do not engage the barrel until the health-care worker withdraws 
the plunger completely. Once the health care worker does so, the clip catches 
a single ratchet and travels down the barrel as the plunger is depressed and 
the operator cannot withdraw the plunger. 

   The Company intends to develop a 3cc syringe with a luer (needleless) tip 
for use in hospitals and health clinics in 1997. In general, hospitals and 
health clinics use more 3cc syringes than 1cc syringes. Hospitals and clinics 
will have the choice of an aspirating or non-aspirating plunger and a choice 
of a syringe barrel with or without an extendible needle sheath. It is 
anticipated that production of the Company's 3cc non-aspirating syringe will 
commence by 1998. See "Risk Factors -- Ability to Develop 3cc Syringe." 

SALES, MARKETING AND DISTRIBUTION 

   The Company's initial marketing efforts will be directed primarily to 
UNICEF, the World Health Organization ("WHO"), and public hospitals and 
health facilities in New York. The Company also intends to market its locking 
clip syringes to (i) governments of developing countries, (ii) private 
hospitals and health facilities in New York, New Jersey and Connecticut, and 
(iii) retail distributors in the United States. The Company also plans to 
license its patents and proprietary manufacturing processes relating to its 
locking clip and other syringe 


                                       31
<PAGE>


designs to established medical device manufacturers. To stimulate demand for 
its safety syringes, the Company plans to initiate promotional and 
educational campaigns directed at (i) public health officers and other 
government officials responsible for public health policies, (ii) doctors and 
administrators of healthcare facilities responsible for treatment of HIV-AIDS 
patients, and (iii) liability insurance companies. The Company plans to enter 
into arrangements with independent sales agents and distributors in targeted 
markets and to hire a marketing director after the Closing. 

PRODUCTION 

   The Company's syringes will be assembled primarily by Harmac, one of the 
largest independent, privately-owned contract manufacturers of medical 
products in the United States, at its production facility in Buffalo, New 
York. The Company has entered into a manufacturing agreement with Harmac for 
the assembly of syringes, using assembly and packaging equipment supplied by 
the Company. The manufacturing agreement may be terminated by Harmac or the 
Company upon 90 days' prior written notice at the end of any calendar year. 
See "Risk Factors -- Dependence on Certain Assemblers." Sherwood will supply 
most of the components for the syringes assembled by Harmac. See "Business -- 
Suppliers." The Company anticipates that production will commence during the 
first quarter of 1997. 

   The Company also has made arrangements with INSERPOR, a Portuguese syringe 
manufacturer which has previously manufactured syringes for UNICEF, for the 
assembly by INSERPOR of non-aspirating syringes for orders, if any, received 
from UNICEF, using syringe components supplied by INSERPOR. In addition, 
INSERPOR will manufacture the Company's proprietary plunger for its 
aspirating syringe. 

   Initially, the Company will produce only 1cc locking clip syringes in 
aspirating and non-aspirating models. The Company's syringes consist of a 
standard needle, barrel, rubber stopper, a ratcheted plunger designed by the 
Company, and a pronged stainless steel locking clip designed by the Company. 
The Company has obtained a patent on its stainless steel locking clip, and 
has been granted a patent for the design of a plunger which, when combined 
with the locking clip, results in a narrow barrelled difficult to reuse, 
locking syringe. The locking clip and plunger can be assembled, with minor 
modifications, into barrels manufactured by Becton Dickinson, Sherwood, 
Terumo and other syringe manufacturers. The plunger is made from plastic 
materials which are readily available from numerous sources and is currently 
manufactured by Sherwood and INSERPOR. The locking clip is made of stainless 
steel and cut and formed for the Company by Harmac. The Company owns or 
otherwise controls all production tooling used by suppliers of these 
components. 

   Capacity can be expanded by purchasing new production systems. The Company 
plans to use a portion of the net proceeds of the Offering for the 
acquisition of an additional production line. 

SUPPLIERS 

   The Company has entered into a supply agreement with Sherwood (the 
"Sherwood Supply Agreement"), pursuant to which Sherwood has agreed to supply 
the Company with at least 50 million syringe component sets per year (or 
4,166,667 per month), each set consisting of a syringe barrel, with or 
without a permanently pre-attached needle and sheath or separate hooded 
needle, and a plunger tip and up to 8,333,333 single-use syringe plungers per 
month, against receipt of purchase orders from the Company at specified 
prices, subject to revision for cost increases (not to exceed 5% during any 
twelve month period). In addition, in order for Sherwood to commit to the 
minimum supply requirements under the Sherwood Supply Agreement, the Company 
has agreed to pay Sherwood 14.925% of the cumulative invoiced amount of 
components in excess of $3,350,000 up to a maximum invoiced amount of 
$6,700,000 (or a maximum of $500,000) and Joel Schoenfeld, Dr. Alan H. Gold, 
David Shonfeld and John Frank agreed, jointly and severally, to pay Sherwood 
up to $1,000,000 (less $0.14925 for each dollar paid to Sherwood under the 
Sherwood Supply Agreement) in the event the Company fails to pay a cumulative 
invoiced amount of $6,700,000 over the first three years of the Sherwood 
Supply Agreement. The Sherwood Supply Agreement is for a term of five years, 
but may be extended under certain circumstances if prior thereto Sherwood 
enters into a license agreement, to manufacture and sell the Company's 
locking clip syringe. In connection with the Sherwood Supply Agreement, 
Sherwood sold all of its right, title and interest in and to the production 
mold for the plunger, including the mold inserts and insert base (together, 
the "Plunger Mold") to the Company in consideration for an option to enter 
into a non-exclusive license to manufacturer and sell the 


                                       32
<PAGE>


Company's locking clip syringes in the United States (the "License 
Agreement"). The Company also entered into a lease agreement with Sherwood 
pursuant to which it leased back the Plunger Mold to Sherwood (the "Equipment 
Lease") for a period of six years for use in the manufacture and production of
the plungers as part of the assembly of single-use syringes using the Company's
proprietary design specifications. Sherwood is required to make aggregate rental
payments of $1,946,016 in 36 equal consecutive monthly installments of $54,056,
over the first three years of the term of the Equipment Lease. In July 1996, the
Company sold the Plunger Mold, subject to the Equipment Lease, together with the
Company's right to the payments under the Equipment Lease, to a financial
institution for net cash consideration of $1,600,000 ($1,837,904 less expenses
of approximately $238,000). In connection with such sale, the financial
institution agreed to sell the Plunger Mold back to the Company for a nominal
amount upon expiration of the term of the Equipment Lease.

   Sherwood has the right to exercise its option to enter into the License 
Agreement at any time prior to November 30, 1999. Upon exercise of the 
option, Sherwood is required to pay the Company a royalty advance of 
$100,000, against which royalty payments may be offset. Under the License 
Agreement, Sherwood is required to pay the Company a royalty equal to 5% of 
net sales. The License Agreement may be terminated by Sherwood upon 30 days 
prior written notice. If on or before February 1, 1998, the Company receives 
a bona fide written offer from an unrelated third party to exclusively 
license the Company's patent rights for its locking clip syringe, Sherwood, 
within 30 days notice of such offer, has the right to exercise its option to 
enter into the License Agreement or to enter into an exclusive license on the 
same terms and conditions set forth in the third party offer. In the event of 
a third party offer, the Company has the right to buy-out the option rights 
granted Sherwood for $100,000. 

   The Company also has entered into a letter of understanding with INSERPOR, 
a Portuguese manufacturer of syringes, to assemble locking clip 
non-aspirating syringes. The Company plans to use a portion of the net 
proceeds of the Offering to acquire a dye and press to cut and form the clip 
and equipment to subassemble the clip to the plunger. 

COMPETITION 

   The Company's principal competition is from traditional disposable 
syringes. Becton-Dickinson, Sherwood and Terumo control approximately 74%, 
19% and 5%, respectively, or a total of approximately 98%, of the worldwide 
syringe market, and are substantially larger, more established and have 
significantly greater financial, sales and marketing, distribution, 
engineering, research and development and other resources than the Company. 
To the Company's knowledge, only Becton-Dickinson and Bader, a German machine 
tool manufacturer, distribute commercially a line of difficult to reuse 
syringes, none of which allow for aspiration. The Bader DestroJect syringe 
and the Becton-Dickinson SOLOSHOT syringe were developed specifically for 
WHO-UNICEF-EPI immunization programs. The Bader DestroJect syringe and the 
Becton-Dickinson SOLOSHOT syringe were designed to dispense a dosage of .5cc 
only, whereas the UNIVEC 1cc locking clip syringe was designed to dispense 
dosages from .05cc to .95cc. The Company believes that UNIVEC syringes are 
more effective than competitive difficult to reuse syringes and that they are 
competitively priced. There can be no assurance that the major syringe 
manufacturers or others will not commence production of 1cc difficult to 
reuse syringes, or locking syringes which aspirate, or that the Company will 
be able to successfully compete in this market. 

PATENTS AND PROPRIETARY RIGHTS 

   The Company's policy is to seek patent protection for all developments, 
inventions and improvements that are patentable and which have potential 
value to the business of the Company and to protect as trade secrets other 
confidential and proprietary information. 

   In 1995, the Company was granted a United States patent for a locking clip 
device not biased against the plunger. The patent is broad enough to include 
several applications of the design covering the first series of products to 
be marketed by the Company. In 1996, the Company was granted a United States 
patent for a plunger design which, in conjunction with its patented locking 
clip, results in a narrow barrel difficult to reuse syringe that allows for 
aspiration during use. In addition, the Company has licensed the rights to 
three other locking device patents. The Company licensed these patents to 
exclude others from using these inventions and/or to develop a 3cc locking 
syringe. The Company is obligated to make certain minimum annual royalty 
payments in 


                                       33
<PAGE>


respect of the licensed rights to these three locking device patents and, to 
the extent the Company's products utilize the claims and designs of the 
licensed patents, to pay royalties to the owner of the licensed patents 
ranging from 2% to 7% of net sales (or in the case of products produced under 
sublicenses granted to third parties, 10% to 40% of royalties received from 
those parties). See Notes 5 and 11 to the Company's consolidated financial 
statements appearing elsewhere herein. 

   The Company also has filed patent applications for its locking clip and 
aspirating plunger in certain foreign countries participating in the Patent 
Cooperation Treaty (Canada, Brazil, Mexico, certain European countries, 
Japan, South Korea, China, Russia and Australia). However, patent 
applications filed in foreign countries and patents granted in such countries 
are subject to laws, rules and procedures that differ from those in the 
United States, and accordingly, patent protection in such countries may be 
different from patent protection provided by United States laws. 
Strategically, the Company seeks manufacturing processes and agreements that 
will enable it to have reliable quality and the lowest production costs. By 
protecting its manufacturing processes, which enable the quality and cost 
competitiveness of its products, the Company believes that it can defend 
market share regardless of foreign patent protections, which are often 
unenforceable or non-existent in many world markets (e.g., China and India). 
See "Risk Factors -- Uncertainty Regards Patents and Proprietary Technology; 
Risk of Future Litigation." 

   The Company has patents and licenses suitable for a 3cc syringe. All of 
these inventions have U.S. patent protection, but most of these inventions 
lack foreign patent protection. However, the Company has filed for patent 
protection in certain European countries for one of its licenses, which is 
the basis for its 3cc non-aspirating syringe. For the aspirating model, the 
choice of design will depend upon certain factors, including patent 
protection, manufacturing costs, ability to control quality and product 
features. It is anticipated that production of the Company's 3cc 
non-aspirating syringe will commence by 1998. See "Risk Factors -- 
Uncertainty Regarding Patents and Proprietary Technology; Risk of Future 
Litigation." 

   The future success of the Company may depend upon the strength of its 
patents. The Company believes that the scope of its patents and licenses is 
sufficient to prevent competitors from introducing devices of similar design 
to its current products and that its patents are valid and enforceable. 
However, there can be no assurance that the Company's patents will not be 
challenged, invalidated or circumvented in the future or that the rights 
granted thereunder will provide a competitive advantage. 

   The Company is not aware of any patent infringement claims against the 
Company or of any infringement of the Company's patents. Litigation to 
enforce patents issued to the Company, to protect proprietary information 
owned or licensed by the Company, or to defend the Company against claimed 
infringement of the rights of others, could be costly and could divert the 
resources of the Company from other planned activities. There can be no 
assurance that the Company would be successful in any such litigation. 

   The Company protects its proprietary information and trade secrets, 
including all aspects of its syringe assembly system, through confidentiality 
agreements with its employees and suppliers. 

   The Company has registered trademarks UNIVEC(R), and R/ Ultra(R), and the 
symbol representing no second use, (i.e., the number 2 crossed out inside of 
a circle), with the United States Patent and Trademark Office. See "Risk 
Factors -- Uncertainty Regarding Patents and Protection of Proprietary 
Technology." 

GOVERNMENT REGULATION 

   The manufacture and distribution of medical devices are subject to 
extensive regulation by the FDA and, in some instances, by foreign and state 
governments. Pursuant to the Federal Food, Drug, and Cosmetic Act, as 
amended, and the regulations promulgated thereunder (collectively, the "FDC 
Act"), the FDA regulates the clinical testing, manufacture, labeling, sale, 
distribution and promotion of medical devices. Before a new device can be 
introduced into the market, a manufacturer must obtain FDA permission to 
market through either the 510(k) pre-market notification process or the 
costlier, lengthier and less certain pre-market approval ("PMA") application 
process. The FDA has granted the Company's 510(k) application for its 1cc 
locking clip syringe, which has been classified as a Class II device under 
the FDC Act, and accordingly, the Company may market and sell its 1cc locking 
clip syringe in the United States, subject to compliance with other 
applicable FDA regulatory requirements. As a Class II device, performance 
standards may be developed for the 1cc locking clip syringe 


                                       34
<PAGE>

which the product would then be required to meet. Failure to meet those 
standards would require the Company to discontinue the marketing of the 
product. Furthermore, manufacturers of medical devices are subject to 
recordkeeping requirements and required to report adverse experiences 
relating to the use of the device. Device manufacturers are also required to 
register their establishments and list their devices with the FDA and with 
certain state agencies and are subject to periodic inspections by the FDA and 
certain state agencies. 

   Medical devices are subject to strict federal regulations regarding the 
quality of manufacturing ("Good Manufacturing Practices" or "GMP"). GMP 
regulations impose certain procedural and documentation requirements upon the 
Company with respect to manufacturing and quality assurance activities. The 
FDA conducts periodic audits and surveillance of the manufacturing, 
sterilizing and packaging facilities of medical device manufacturers to 
determine compliance with GMP requirements. The failure of a medical device 
manufacturer to be able to show in the audit or post-market surveillance that 
it has adequately complied with GMP requirements can result in penalties or 
enforcement proceedings being imposed on the manufacturer. These procedures 
may include a product recall of a product or a "cease distribution" order 
which would require the manufacturer to direct its distributors and sales 
agents to stop selling products, as well as other enforcement sanctions. 
Harmac's manufacturing facilities have been certified as satisfying GMP 
requirements. Harmac's facilities will be subject to extensive audits in the 
future, pursuant to standard FDA procedure. No assurance can be given that 
when Harmac is audited that it will be found to be in compliance with GMP 
requirements, or that if it is not found in compliance, what penalties, 
enforcement procedures or compliance effort will be levied on or required of 
Harmac and/or the Company. Recently adopted GMP requirements, including those 
pertaining to design control, are likely to increase the cost of GMP 
compliance. Noncompliance with applicable requirements, including GMP 
requirements, can result in, among other things, fines, injunctions, civil 
penalties, recall or seizure of products, total or partial suspension of 
production, failure of the government to grant pre-market clearance or pre- 
market approval for devices, withdrawal of marketing approvals, and criminal 
prosecution. The FDA also has the authority to request repair, replacement or 
refund of the cost of any device manufactured or distributed by the Company. 

   The introduction of the Company's products in foreign markets will also 
subject the Company to foreign regulatory clearances which may impose 
additional substantive costs and burdens. The Company's products are required 
to satisfy international manufacturing standards for sale in certain foreign 
countries. Harmac expects to achieve ISO 9001 certification in the first 
quarter of 1997. However, until Harmac obtains ISO 9001 certification, the 
Company will have difficulty selling to some export accounts, particularly in 
Europe. INSERPOR expects to obtain ISO 9002 in 1997. International sales of 
medical devices are subject to the regulatory requirements of each country. 
The regulatory review process varies from country to country. Many countries 
also impose product standards, packaging requirements, labeling requirements 
and import restrictions on devices. In addition, each country has its own 
tariff regulations, duties and tax requirements. 

   The approval by the FDA and foreign government authorities is 
unpredictable and uncertain, and no assurance can be given that the necessary 
approvals or clearances for the Company's products will be granted on a 
timely basis or at all. Delays in receipt of, or a failure to receive, such 
approvals or clearances, or the loss of any previously received approvals or 
clearances, could have a materially adverse effect on the business, financial 
condition and results of operations of the Company. Furthermore, approvals 
that have been or may be granted are subject to continual review, and later 
discovery of previously unknown problems may result in product labeling 
restrictions or withdrawal of the product from the market. Moreover, changes 
in existing requirements or adoption of new requirements or policies could 
adversely affect the ability of the Company to comply with regulatory 
requirements. There can be no assurance that the Company will not be required 
to incur significant costs to comply with applicable laws and regulations in 
the future. Failure to comply with applicable laws or regulatory requirements 
could have a materially adverse effect on the Company's business, financial 
position and results of operations. 

FACILITIES 

   The Company occupies its executive offices in Garden City, New York 
(comprised of approximately 1,200 square feet of space) pursuant to a 
month-to-month tenancy. Rental expense for the space is approximately $2,300 
per month. Dr. Alan H. Gold, the President, a Director and principal 
stockholder of the Company, is the 


                                       35
<PAGE>


president and a stockholder of the owner of the premises, the Long Island 
Plastic Surgical Group. Although the Company is satisfied with the 
arrangements for its office space, which is adequate for its current 
operations, it believes that alternative space is available on reasonable 
terms. 

   The Company is seeking approximately 25,000 square feet of warehouse 
space, and intends to use a portion of the net proceeds of the Offering for 
furniture, fixtures and equipment for a warehouse facility. 

EMPLOYEES 

   The Company currently employs five persons, including one in sales and 
marketing, one in research and development, one in regulatory affairs and 
quality assurance and two in financial administration. The Company also has 
engaged the services of several independent contractors. None of the 
Company's employees is covered by a collective bargaining agreement. 

   The Company intends to hire a full-time marketing director upon completion 
of the Offering and to staff its warehouse facility with four people. 

LITIGATION 

   The Company is not involved in any legal proceedings. 


                                       36
<PAGE>

                                  MANAGEMENT 


Directors, Executive Officers and Key Employees 

   The directors, executive officers and key employees of the Company are as 
follows: 


Name                        Age                    Position 
- ----                        ---                    -------- 
Joel Schoenfeld             51          Chairman of the Board; Chief Executive 
                                        Officer; and a Director 
Alan H. Gold                50          President and a Director 
David Shonfeld              41          Director of Research and Development 
                                        and a Director 
David Chabut                38          Chief Financial Officer 
Flora Schoenfeld            51          Treasurer and Secretary 
John Frank                  57          Director 
Richard Lerner              52          Director 

   Joel Schoenfeld, the founder of the Company, has been Chairman of the 
Board and Chief Executive Officer of the Company since its inception in 
August 1992. Mr. Schoenfeld was the founder and President of J&B Schoenfeld, 
a global trading company whose main focus was on the import, export and 
processing of pelts and hides, specializing in trade with the USSR and 
Europe. 

   In 1988, Mr. Schoenfeld formed the American-Russian International Trading 
Company ("AMRU"), which advised on trade agreements between the USSR and 
United States. AMRU's broad base of interest and expertise enabled it to take 
on such diverse projects as a joint venture with the Soviet government and 
military known as AMRU-STAR, the representation of the Soviet Space Agency to 
Washington, D.C., the introduction of western advertising to the USSR in 
conjunction with another American company, Transportation Displays, Inc. 
("TDI"), and the construction of a studio producing children's films for 
international distribution. 

   As a result of the political changes in the former USSR, Mr. Schoenfeld 
sought to further his business strategies. In 1990, he founded Joel 
Schoenfeld & Associates in Garden City, New York. With affiliate offices in 
Moscow, San Jose, London, and Boston, the company's purpose was to originate, 
structure, capitalize, negotiate and advise on the implementation of import 
and export trade transactions, projects and programs. 

   Mr. Schoenfeld has been a commercial attache and a consultant to a number 
of foreign and multinational governments. Currently, Mr. Schoenfeld is an 
advisor to United Nations Development Programs ("UNDP"). Previously, he 
served as: 

    o  Senior Advisor to the Costa Rican Ambassador to the United Nations 
    o  Senior Advisor and Coordinator, Chief of Staff to the Chairman of the 
       Committee of States Parties to the International Covenant on Civil and 
       Political Rights to the United Nations 
    o  Senior Economic and Trade Advisor to the United Nations Commission on 
       Transnational Corporations 

    Mr. Schoenfeld is the husband of Flora Schoenfeld. 

   Alan H. Gold, M.D., has been President of the Company since July 1996 and 
a Director of the Company since inception in August 1992. Dr. Gold has been a 
plastic surgeon since 1972, and is president of the Long Island Plastic 
Surgical Group. He is a vice president and board member of Day-Op Center of 
Long Island, a privately-owned surgery center in New York. Dr. Gold is a 
medical advisor to the UNDP. 

   David Shonfeld has been Director of Research and Development of the 
Company since its inception in August 1992. From December 1988 to February 
1992, he was Vice President of Research and Development of Shyder, Inc. (a 
designer of air purification systems). In 1986 and 1987, he was a participant 
in a "think-tank" for Israel Aircraft Industries, developing a new security 
system for Israel's borders. From 1983 to 1986, he super- 


                                       37
<PAGE>

vised a project involving "high-speed fiber optic communications" for IBM 
France. From 1980 to 1983, he continued his university studies at Israel's 
Technion Institute, majoring in physics and specializing in electronics and 
electro-optics. From 1977 to 1980, he worked as a manager of automation, 
robotics and production systems for Aloni Tiles, an international 
manufacturing concern. 

   David Chabut has been the Chief Financial Officer of the Company since 
October 1995. From January 1994 to September 1995 and from April 1992 to 
January 1993, Mr. Chabut was a self-employed financial consultant. From 
February 1993 to December 1993, he was chief operating officer for MediMax, 
Inc. (which invested in accounts receivable financing of health care 
providers), where he directed marketing, treasury and administration. From 
August 1982 to March 1992, Mr. Chabut was a senior consultant for Coopers & 
Lybrand in Chicago and New York where he advised several companies about 
improving or starting operations. Additionally, Mr. Chabut has selling 
experience for Queen City Supply Company, a distributor of motion control and 
power transmission products in Cincinnati, Ohio that is owned by his family. 
Mr. Chabut is a CPA and earned an MBA from the University of Michigan. 

   Flora Schoenfeld has been Treasurer and Secretary of the Company since its 
inception in August 1992. Since March 1992, she also has been Treasurer and 
Secretary of Joel Schoenfeld & Associates. From 1980 to 1992, she was 
Treasurer and Secretary of J & B Schoenfeld, Inc. Flora Schoenfeld is the 
wife of Joel Schoenfeld. 

   John Frank has been a consultant to the Company in the areas of corporate 
development and strategic planning since its inception in August 1992. Mr. 
Frank has been Chief Information Officer of The Hartford Steam Boiler 
Inspection and Insurance Co. since August 1996. From October 1994 to August 
1996, he was Special Projects Manager for Electronic Data Systems 
Corporation. From August 1993 to September 1994, he was the chief auditor of 
Travelers Insurance Companies. From September 1991 to July 1993, he was a 
principal of Lipera Frank Inc., of which he was a co-founder. From January 
1982 to September 1991, Mr. Frank was a partner of Coopers & Lybrand, where 
he managed strategic planning and financial management engagements for 
Fortune 500 clients. Mr. Frank is a CPA and earned an MBA from Harvard 
University. 

   Richard Lerner has been a Director of the Company since inception in 
August 1992. He is President of Lerner, Gordon & Hirsch, P.C., a Long Island 
law firm. 

   All directors hold office until the annual meeting of stockholders of the 
Company following their election or until their successors are duly elected 
and qualified. Officers are appointed by the Board of Directors and serve at 
its discretion. 

   Directors do not receive any cash compensation from the Company for 
service as members of the Board of Directors; however, the Company reserves 
the right to adopt a policy providing for compensation of independent 
directors. 


                                       38
<PAGE>

SUMMARY COMPENSATION TABLE 

   The following table sets forth the compensation awarded to, earned by or 
paid to the Company's Chief Executive Officer and each other executive 
officer of the Company whose salary and bonus for the years ended December 
31, 1995 and 1996 exceeded $100,000. 

<TABLE>
<CAPTION>
                                                   Annual Compensation            Long-Term Compensation 
                                            -------------------------------    ----------------------------- 
                                                              Other Annual 
   Name and Principal Position       Year       Salary        Compensation    Securities Underlying Options 
 --------------------------------   ------   -------------    --------------   ----------------------------- 
<S>                                 <C>     <C>               <C>             <C>
Joel Schoenfeld, Chairman of the 
  Board and Chief Executive 
  Officer .......................    1996      $192,000(1)         --                         -- 
David Chabut, Chief Financial 
  Officer .......................    1996      $120,000(2)         --                     20,513(3) 
</TABLE>

- ------ 

(1) The Company accrues compensation expense for Joel Schoenfeld at a rate of 
    $192,000 per annum, plus benefits, which include a car (approximately 
    $8,500) and life/disability/health insurance (approximately $7,500). 

(2) The Company accrues compensation expense for David Chabut at a rate of 
    $120,000 per annum, including health insurance benefits. 

(3) Represents options granted to Mr. Chabut at $3.50 per share, exercisable 
    until March 31, 1999. Mr. Chabut has exercised options to purchase 16,143 
    shares and has advised the Company that he intends to exercise options to 
    purchase an additional 4,370 shares at Closing. See "Management -- Stock 
    Options" and "Certain Transactions." 

EMPLOYMENT AGREEMENTS 

   The Company has entered into an employment agreement with David Chabut 
pursuant to which he serves as Chief Financial Officer of the Company at a 
salary of $120,000 per annum (including health insurance benefits). The 
agreement expires on September 30, 1997. 

   David Shonfeld is employed as Director of Research and Development of the 
Company pursuant to an employment agreement which expires on July 30, 1997. 
The agreement may be terminated by the Company or Mr. Shonfeld upon not less 
than 30 days prior written notice at any time after December 31, 1996. Under 
the agreement, Mr. Shonfeld is compensated at the rate of $50 per hour for 
research and development performed on a project basis. 

   The employment agreements with Messrs. Chabut and Shonfeld contain 
non-competition covenants that prohibit each of them, directly or indirectly, 
from engaging in a competitive business (as defined) for a period of twelve 
months following the termination of employment. 

   The Company will enter into an employment agreement with Joel Schoenfeld, 
its Chairman of the Board and Chief Executive Officer, on or before the 
Effective Date. 

STOCK OPTIONS 

   The following table contains information concerning the grant of stock 
options to Joel Schoenfeld and David Chabut (the "Named Executive Officers") 
during the fiscal year ended December 31, 1996. 

<TABLE>
<CAPTION>
                    Number of Shares    Percent of Total Options 
                   Underlying Options   Granted to Employees in    Exercise Price 
      Name              Granted               Fiscal Year             Per Share     Expiration Date 
 ---------------   ------------------   ------------------------    --------------   --------------- 
<S>                <C>                  <C>                        <C>              <C>
Joel Schoenfeld               0                    --                   --               -- 
David Chabut  ..         20,513                   100%                 $ 3.50         March 31, 1999 
</TABLE>


                                       39
<PAGE>

   The following table summarizes for each of the Named Executive Officers 
the total number of unexercised options, if any, held at December 31, 1996, 
and the aggregate dollar value of in-the-money, unexercised options, held at 
December 31, 1996. The value of the unexercised, in-the-money options at 
December 31, 1996, is the difference between their exercise or base price and 
the value of the underlying Common Stock on December 31, 1996, at an assumed 
price of $3.50 per share. 

              AGGREGATED OPTION EXERCISES -- JANUARY 1, 1996 -- 
            DECEMBER 31, 1996 AND DECEMBER 31, 1996 OPTION VALUES 

<TABLE>
<CAPTION>
                                                                                       Value of Unexercised
                     Shares Acquired Upon            Number of Securities                  In-The-Money 
                  Exercise of Options during        Underlying Unexercised                  Options at 
                          Fiscal 1996            Options at December 31, 1996            December 31, 1996 
                  --------------------------   --------------------------------  -------------------------------- 
      Name          Number    Value Realized    Exercisable     Unexercisable      Exercisable     Unexercisable 
 ---------------   --------   --------------    -------------   ---------------   -------------   --------------- 
<S>                 <C>         <C>             <C>             <C>               <C>             <C>
Joel Schoenfeld       --            --               --               --               --               -- 
David Chabut  ..    16,143          --             4,370              --               --               -- 
</TABLE>

STOCK OPTION PLAN 

   On December 14, 1996, the Board of Directors adopted, subject to 
stockholder approval, the 1996 Stock Option Plan (the "Plan"). The Plan is to 
be administered by the Board of Directors or a committee thereof. Pursuant to 
the Plan, options to purchase 4,709,219 shares of Common Stock may be granted 
to directors, employees (including officers) and consultants to the Company 
(collectively, "Plan participants"). As of December 31, 1996, options to 
purchase 20,513 shares have been granted under the Plan. 

   The Plan authorizes the issuance of incentive stock options ("ISOs"), as 
defined in Section 422A of the Internal Revenue Code of 1986, as amended, 
non-qualified stock options ("NQSOs", and together with ISOs, "Options"). 
Consultants and directors who are not also employees of the Company are 
eligible for grants of only NQSOs. The exercise price of each ISO may not be 
less than 100% of the fair market value of the Common Stock at the time of 
grant, except that in the case of a grant to an employee who owns 10% or more 
of the outstanding stock of the Company or a subsidiary or parent of the 
Company (a "10% Stockholder"), the exercise price may not be less than 110% 
of the fair market value on the date of grant. The aggregate fair market 
value of the shares covered by ISOs granted under the Plan that become 
exercisable by a Plan participant for the first time in any calendar year is 
subject to a $100,000 limitation. The exercise price of each NQSO is 
determined by the Board, or committee thereof, in its discretion; provided 
that a NQSO granted a 10% Stockholder be no less than 110% of the fair market 
value on the date of grant. 

   The Company has agreed with the Underwriter that the exercise price of 
options to purchase 4,500,000 shares of Common Stock will not be less than 
$3.50 per share and that such options will be exercisable for a period of ten 
years, commencing upon the earlier of (x) nine years after the Effective Date 
and (y) two years after the Effective Date, provided that in the case of 
clause (y), the Company shall have obtained (i) at least $30,000,000 in gross 
revenues and after tax net income of at least $2,000,000 in the second full 
fiscal year following the Effective Date, or (ii) at least $45,000,000 in 
gross revenues and $3,000,000 in after-tax net income in the third full 
fiscal year following the Effective Date, or (iii) at least $60,000,000 in 
gross revenues and $4,000,000 in after-tax net income in the fourth full 
fiscal year following the Effective Date ("Time Accelerated Restricted Stock 
Options"). 

   Subject to the provisions of the Plan, the Board, or committee thereof, 
has the authority to determine the individuals to whom the stock options are 
to be granted, the number of shares to be covered by each option, the type of 
option, the exercise period, the restrictions, if any, on the exercise of the 
option, the terms for the payment of the exercise price and other terms and 
conditions. Payments by holders of options upon exercise of any option may be 
made (as determined by the Board or a committee thereof) in cash or such 
other form of payment as may be permitted under the Plan. 

INDEMNIFICATION OF OFFICERS AND DIRECTORS AND LIMITATION ON DIRECTORS' 
LIABILITY 

   The Company's Certificate of Incorporation provides for indemnification of 
directors and officers in conformity with Section 145 of the Delaware General 
Corporation Law, as amended (the "DGCL"), which autho- 


                                       40
<PAGE>

rizes the Company to indemnify any director or officer under certain 
prescribed circumstances and subject to certain limitations against certain 
costs and expenses, including attorneys' fees actually and reasonably 
incurred in connection with any action, suit or proceeding, whether civil, 
criminal, administrative or investigative, to which such person is a party by 
reason of being a director or officer of the Company if it is determined that 
such person acted in accordance with the applicable standard of conduct set 
forth in such statutory provisions. 

   Insofar as indemnification for liabilities arising under the Securities 
Act may be permitted to directors, officers and controlling persons of the 
Company pursuant to the foregoing provisions or otherwise, the Company has 
been advised that in the opinion of the Commission such indemnification is 
against public policy as expressed in the Securities Act and is therefore 
unenforceable. 

   The Company's Certificate of Incorporation also contains a provision 
eliminating the personal liability of a director to the Company or its 
stockholders for damages for breach of fiduciary duty as a director to the 
fullest extent permitted by the DGCL, as the same exists or may thereafter be 
amended. 

                             CERTAIN TRANSACTIONS 

   From its inception in August 1992, the Company's operations have been 
funded through advances from Joel Schoenfeld, Flora Schoenfeld and two 
companies affiliated with Mr. Schoenfeld (collectively, the "Schoenfeld 
Parties"), and certain other stockholders of the Company. As of September 30, 
1996, the amount due to these stockholders and affiliates with respect to the 
repayment of these advances (including accrued interest) was as follows: the 
Schoenfeld Parties -- $1,155,565; Dr. Alan H. Gold -- $113,700; and John 
Frank -- $116,373. The Company issued its demand promissory notes evidencing 
its obligation to repay the foregoing advances, together with accrued 
interest on the outstanding principal amount thereof at 8% per annum. In 
December 1996, the Schoenfeld Parties and Dr. Alan H. Gold exchanged for 
cancellation their notes for 1,155 shares and 114 shares, respectively, of 
the Company's Series A Preferred Stock. See "Description of Securities -- 
Series A Preferred Stock." At the Closing, the Company will issue 33,250 
shares of Common Stock to Mr. Frank, a director of the Company, in exchange 
for the cancellation of the amount payable to him. In addition, as of 
September 30, 1996, the Company had accrued compensation payable to the 
Schoenfeld Parties in the amount of $644,391, including management fees of 
$382,191 for periods prior to June 30, 1994. Since June 30, 1994, the Company 
has recorded a salary expense for Mr. Schoenfeld in lieu of management fees 
due to affiliates of Mr. Schoenfeld. See "Management -- Summary Compensation 
Table." The Company has agreed with the Underwriter that such compensation 
will not be paid prior to March 31, 1999, without the prior written consent 
of the Underwriter. 

   In connection with the Sherwood Supply Agreement, Joel Schoenfeld, Dr. 
Alan H. Gold, David Shonfeld and John Frank agreed, jointly and severally, to 
pay Sherwood up to $1,000,000 (less $0.14925 for each dollar paid to Sherwood 
under the Sherwood Supply Agreement) in the event the Company fails to pay a 
cumulative invoiced amount of $6,700,000 over the first three years of the 
Sherwood Supply Agreement. See "Business -- Suppliers." 

   On October 10, 1996, UNIVEC-NY, the then owner of all of the outstanding 
capital stock of the Company, was merged with and into the Company, solely 
for the purpose of effecting a change in its state of incorporation from New 
York to Delaware. In the merger, shareholders of UNIVEC-NY received 
10,256.3954 shares of Common Stock for each share of UNIVEC-NY common stock 
owned, with the total number of shares issuable to each shareholder rounded 
up to the nearest whole share. 

   The Company occupies its executive offices, consisting of approximately 
1,200 square feet of space, pursuant to a month-to-month tenancy. Rental 
expense for the space is approximately $2,300 per month. Dr. Alan H. Gold, 
the President, a Director and principal stockholder of the Company, is the 
president and a stockholder of the owner of the premises, the Long Island 
Plastic Surgical Group. 

   In December 1996, David Chabut, the Chief Financial Officer of the 
Company, exercised options to purchase 16,143 shares of Common Stock, having 
an exercise price of $3.50 per share, the exercise price of which was paid 
for by the cancellation of amounts payable to him for accrued, but unpaid 
compensation and certain advances. Mr. Chabut has advised the Company that he 
intends to exercise options to purchase an additional 4,370 shares of Common 
Stock (at $3.50 per share) at the Closing, and to pay the exercise price of 
these options by cancellation of amounts payable to him for accrued but 
unpaid compensation and certain advances. The Company has agreed to pay 
$15,949 for federal and state withholding and payroll taxes incurred by Mr. 
Chabut in connection with the exercise of such options. See "Management -- 
Stock Options." 


                                       41
<PAGE>
                        SECURITY OWNERSHIP OF CERTAIN 
                       BENEFICIAL OWNERS AND MANAGEMENT 

   The following table sets forth certain information concerning the 
beneficial ownership of the Common Stock immediately prior to and after the 
Offering by (i) each stockholder known by the Company to be a beneficial 
owner of more than five percent of the outstanding Common Stock, (ii) each 
director of the Company and each executive officer of the Company listed in 
the Summary Compensation Table under the caption "Management -- Summary 
Compensation Table" and (iii) all directors and officers as a group. 
<TABLE>
<CAPTION>
                                                                           Percentage of Common 
                                                                             Stock Benefically 
                                                                                  Owned 
                                                  Amount and         --------------------------------- 
                                             Nature of Beneficial       Before               After 
                   Name                          Ownership(1)         Offering(2)         Offering(3) 
 -----------------------------------------   --------------------   ----------------    --------------- 
<S>                                          <C>                   <C>                  <C>
Joel and Flora Schoenfeld((4))  ..........          333,333(5)(6)       30.80%             12.72% 
Alan H. Gold, M.D.((4))  .................          333,333(5)          30.80%             12.72% 
David Shonfeld((4))  .....................          256,410(6)          23.69%              9.79% 
John Frank((7))  .........................          140,128(8)          12.32%(9)           5.30%(10) 
Richard Lerner  ..........................           41,026              3.79%              1.57% 
David Chabut((4))  .......................           20,513(11)          1.89%(12)            * 
All directors and executive officers as a 
  group (7 persons) ......................        1,124,743(13)(14)     98.47%(15)         42.57%(16) 
</TABLE>
- ------ 
* Less then 1% 
 (1) Unless otherwise indicated, each person has sole investment and voting 
     power with respect to the shares indicated, subject to community 
     property laws, where applicable. For purposes of computing the 
     percentage of outstanding shares held by each person or group of persons 
     named above as of the Effective Date, any security which such person or 
     group of persons has the right to acquire within 60 days after such date 
     is deemed to be outstanding for the purpose of computing the percentage 
     ownership for such person or persons, but is not deemed to be 
     outstanding for the purpose of computing the percentage ownership of any 
     other person. 
 (2) Except as otherwise stated, calculated on the basis of 1,082,287 shares 
     of Common Stock issued and outstanding. 
 (3) Except as otherwise stated, calculated on the basis of 2,619,907 shares 
     of Common Stock issued and outstanding. Gives effect to (i) the issuance 
     and sale of 1,500,000 shares of Common Stock in the Offering, (ii) the 
     issuance to a director of the Company at Closing of 33,250 shares of 
     Common Stock in exchange for the cancellation of amounts payable to him 
     ($116,373 as of September 30, 1996), and (iii) the issuance to an 
     officer of the Company at Closing of 4,370 shares upon exercise of an 
     option. See "Certain Transactions." 
 (4) Address is c/o the Company, 999 Franklin Avenue, Garden City, New York 
     11530. 
 (5) All of the shares owned by Dr. Gold have been pledged to secure certain 
     indebtedness to Joel Schoenfeld. Dr. Gold retains voting and dispositive 
     power with respect to the pledged shares until the occurrence of a 
     default in the payment of the indebtedness secured by the pledged 
     shares. Accordingly, the pledged shares have been included in the number 
     of shares beneficially owned by Dr. Gold and excluded from the number of 
     shares beneficially owned by Mr. Schoenfeld. 
<PAGE>

 (6) All of the shares owned by Mr. Shonfeld have been pledged to secure 
     certain indebtedness to Joel Schoenfeld. Mr. Shonfeld retains voting and 
     dispositive power with respect to the pledged shares until the 
     occurrence of a default in the payment of the indebtedness secured by 
     the pledged shares. Accordingly, the pledged shares have been included 
     in the number of shares beneficially owned by Mr. Shonfeld and excluded 
     form the number of shares beneficially owned by Mr. Schoenfeld. 
 (7) Address is c/o The Hartford Steam Boiler Insurance & Inspection Co., 
     P.O. Box 5204, One State Street, Hartford, Connecticut 06102-5024. 
 (8) Includes 33,250 shares issuable at Closing in exchange for cancellation 
     of amounts payable to him ($116,373, including accrued interest, as of 
     September 30, 1996), and 22,236 shares issuable upon exercise of 
     options, at an exercise price of $3.50 per share, which expire on 
     February 22, 1999. 
 (9) Calculated on the basis of 1,137,773 shares of Common Stock issued and 
     outstanding. 
(10) Calculated on the basis of 2,642,143 shares of Common Stock issued and 
     outstanding. 
(11) Includes 4,370 shares issuable upon exercise of options, at an exercise 
     price of $3.50 per share, which expire on March 31, 1999. Mr. Chabut has 
     advised the Company that he intends to exercise options to purchase 
     these shares at Closing. See "Certain Transactions." 
(12) Calculated on the basis of 1,086,657 shares of Common Stock issued and 
     outstanding. 
(13) For purposes of this calculation, shares of Common Stock beneficially 
     owned by more than one person have only been included once. 
(14) Includes 22,236 shares and 4,370 shares issuable upon exercise of 
     options held by Messrs. Frank and Chabut, respectively, and 33,250 
     shares to be issued to Mr. Frank at Closing in exchange for cancellation 
     of amounts payable to him ($116,373 as of September 30, 1996). See 
     footnotes (8) and (11) above. 
(15) Calculated on the basis of 1,142,143 shares of Common Stock issued and 
     outstanding. 
(16) Calculated on the basis of 2,642,143 shares of Common Stock issued and 
     outstanding. 

                                       42
<PAGE>

                          DESCRIPTION OF SECURITIES 

   The authorized capital stock of the Company consists of 25,000,000 shares 
of Common Stock, $0.001 par value per share, 2,500 shares of Series A 8% 
Cumulative Convertible Preferred Stock, $0.001 par value per share (the 
"Series A Preferred Stock"), and 4,997,500 shares of "blank check" preferred 
stock, $0.001 par value per share. On the Effective Date, 1,082,287 shares of 
Common Stock and 1,269 shares of Series A Preferred Stock will be issued and 
outstanding. 

   The following are brief descriptions of the securities offered hereby and 
other securities of the Company. The rights of the holders of shares of the 
Company's capital stock are established by the Company's Certificate of 
Incorporation, a Certificate of Designation authorizing the Series A 
Preferred Stock, the Company's By-laws and Delaware law. The following 
statements do not purport to be complete or give full effect to statutory or 
common law, and are subject in all respects to the applicable provisions of 
the Certificate of Incorporation, the Certificate of Designation, By-laws and 
state law. 

COMMON STOCK 

   Holders of the Common Stock are entitled to one vote per share, and 
subject to the rights of holders of the Series A Preferred Stock or any other 
series of preferred stock, to receive dividends when, as and if declared by 
the Board of Directors and to share ratably in the assets of the Company 
legally available for distribution to holders of Common Stock in the event of 
the liquidation, dissolution or winding up of the Company. Holders of the 
Common Stock do not have subscription, redemption, conversion or preemptive 
rights. 

   Each share of Common Stock is entitled to one vote on any matter submitted 
to the holders, including the election of directors. Holders of Common Stock 
do not have cumulative voting rights; therefore, holders of a majority of the 
outstanding shares of Common Stock entitled to vote for the election of 
Directors may elect all of the Directors to be elected, if they so choose, 
and in such event, the holders of the remaining shares will not be able to 
elect any of the Company's Directors. Except as otherwise required by the 
DGCL, all stockholder action (other than the election of Directors, who are 
elected by plurality vote), is subject to approval by a majority of the 
shares of Common Stock present at a stockholders' meeting at which a quorum 
(a majority of the issued and outstanding shares of Common Stock) is present 
in person or by proxy, or by written consent pursuant to Delaware law. 

   All shares of Common Stock outstanding are fully paid and non-assessable, 
and the shares of Common Stock offered hereby and the shares of Common Stock 
issuable upon exercise of the Warrants, when issued upon payment of the 
purchase price set forth on the cover page of the Prospectus or payment of 
the exercise price specified in the Warrants, as the case may be, will be 
fully paid and non-assessable. 

   The Board of Directors is authorized to issue additional shares of Common 
Stock within the limits authorized by the Company's Certificate of 
Incorporation without further stockholder action. The Company has agreed with 
the Underwriter that it will not issue any securities, including but not 
limited to shares of Common Stock, for a period of 24 months following the 
Effective Date, except as disclosed in or contemplated by this Prospectus, 
without the prior written consent of the Underwriter. 

WARRANTS 

   The Warrants offered hereby will be issued in registered form under a 
Warrant Agreement (the "Warrant Agreement") between the Company and 
Continental Stock Transfer & Trust Company, as Warrant Agent (the "Warrant 
Agent"). 

   Each Warrant will be separately transferable and will entitle the 
registered holder thereof to purchase one share of Common Stock at $4.50 per 
share (subject to adjustment as described below) for a period of five years 
commencing ------, 1999 [two years after the Effective Date] and ending 
- ------, 2002 [five years after the Effective Date] (the "Exercise Period"). 
The exercise price and the number of shares of Common Stock issuable upon the 
exercise of each Warrant are subject to adjustment in the event of a stock 
split, stock dividend, recapitalization, merger, consolidation or certain 
other events. A holder of Warrants may exercise such Warrants by surrendering 
the certificate evidencing such Warrants to the Warrant Agent, together with 
the form 


                                      43 
<PAGE>

of election to purchase on the reverse side of such certificate attached 
thereto properly completed and executed and the payment of the exercise price 
and any transfer tax. If less than all of the Warrants evidenced by a Warrant 
certificate are exercised, a new certificate will be issued for the remaining 
number of Warrants. 

   The Company has authorized and reserved for issuance a number of shares of 
Common Stock sufficient to provide for the exercise of the Warrants. When 
issued, upon payment of the exercise price specified in the Warrants, each 
share of Common Stock will be fully paid and nonassessable. Holders of 
Warrants will not have any voting or other rights as stockholders of the 
Company unless and until Warrants are exercised and shares issued pursuant 
thereto. 

   The Warrants may be redeemed by the Company, at a price of $.05 per 
Warrant, upon not less than 30 days prior written notice at any time during 
the Exercise Period, with the prior written consent of the Underwriter, 
provided the average of the closing bid quotations of the Common Stock, 
during the period of twenty (20) consecutive trading days ending on the third 
day prior to the date upon which notice of redemption is given, as reported 
on The Nasdaq SmallCap Market (or if the Common Stock is not quoted thereon, 
the closing sale price of the Common Stock on the Nasdaq National Market or 
other principal securities exchange upon which the Common Stock is then 
quoted or listed, or such other reporting system that provides closing sale 
prices for the Common Stock), has been at least $8.00 per share. The Warrants 
will be exercisable until the close of business on the day immediately 
preceding the date fixed for the redemption of the Warrants in the notice of 
redemption. 

   The Company will pay the Underwriter a fee of 8% of the exercise price of 
each Warrant exercised, provided (i) the market price of the Common Stock on 
the date the Warrant was exercised was equal to or greater than the Warrant 
exercise price on that date, (ii) the exercise price of the Warrant was 
solicited by a member of the NASD, (iii) the Warrant was not held in a 
discretionary account, (iv) the disclosure of compensation arrangements was 
made in documents provided to the holders of the Warrants, (v) the 
solicitation of the exercise of the Warrant was not a violation of Rule 10b-6 
under the Exchange Act and (vi) the Underwriter is designated in writing as 
the soliciting NASD member. Unless granted an exemption from Rule 10b-6 under 
the Exchange Act by the Commission, the Underwriter and any other soliciting 
broker/dealers will be prohibited from engaging in any market making 
activities or solicited brokerage activities with regard to the Company's 
securities during the periods prescribed by exemption (xi) to Rule 10b-6 
before the solicitation of the exercise of any Warrant until the later of the 
termination of such solicitation activity or the termination of any right the 
Underwriter and any other soliciting broker/dealer may have to receive a fee 
for the solicitation of the exercise of the Warrants. 

   For a holder of a Warrant to exercise the Warrant, there must be a current 
registration statement on file with the Securities and Exchange Commission 
and various state securities commissions. The Company will be required to 
file post-effective amendments to the registration statement when events 
require such amendments and to take appropriate action under state securities 
laws. While it is the Company's intention to file post-effective amendments 
when necessary and to take appropriate action under state securities laws, 
there can be no assurance that the Company will file all post-effective 
amendments required to maintain the effectiveness of the registration 
statement or that the Company will take all appropriate action under state 
securities laws. If the registration statement is not kept current for any 
reason, the Warrants will not be exercisable, and holders thereof may be 
deprived of value. 

OPTIONS AND WARRANTS 

   Options. On the Effective Date, there will be outstanding options to 
purchase an aggregate of 60,042 shares of Common Stock at an exercise price 
of $3.50, which expire at various dates from February 22, 1999 through June 
30, 1999. David Chabut, Chief Financial Officer of the Company, has advised 
the Company that he intends to exercise options to purchase 4,370 shares of 
Common Stock at the Closing. See "Certain Transactions." In addition, 
4,688,706 shares of Common Stock have been reserved for issuance upon 
exercise of options which may be granted in the future pursuant to the 
Company's 1996 Stock Option Plan, including 4,500,000 Time Accelerated 
Restricted Stock Options. See "Management -- Stock Option Plan." 

   Warrants. On the Effective Date, there will be outstanding warrants to 
purchase an aggregate of 2,500,000 shares of Common Stock having terms 
identical to the Warrants offered hereby. See "Description of Securities -- 
Bridge Financing." 


                                       44
<PAGE>

PREFERRED STOCK 

   The Company is authorized to issue up to 5,000,000 shares of "blank check" 
preferred stock with such designations, rights and preferences as may be 
determined from time to time by the Board of Directors. Accordingly, the 
Board of Directors is empowered, without further stockholder approval, to 
issue preferred stock with dividend, liquidation, conversion, voting or other 
rights that could decrease the amount of earnings and assets available for 
distribution to holders of Common Stock or adversely affect the voting power 
or other rights of the holders of the Company's Common Stock. In the event of 
issuance, the preferred stock could be utilized, under certain circumstances, 
as a method of discouraging, delaying or preventing a change in control of 
the Company. No shares of preferred stock will be outstanding on the 
Effective Date, other than the 1,269 shares of Series A Preferred Stock owned 
by the Schoenfeld Parties and Dr. Alan H. Gold. Except for shares of Series A 
Preferred Stock which may be issued in payment of dividends on the Series A 
Preferred Stock, the Company has no present intention to issue any shares of 
preferred stock. The Company has agreed with the Underwriter that, except for 
issuances disclosed in or contemplated by this Prospectus, it will not issue 
any securities, including but no limited to any shares of preferred stock, 
for a period of 24 months following the Effective Date, without the prior 
written consent of the Underwriter. See "Certain Transactions" and 
"Description of Securities -- Series A Preferred Stock." 

SERIES A PREFERRED STOCK 

   The Board of Directors has authorized the issuance of up to 2,500 shares 
of Series A Preferred Stock, of which 1,269 shares, owned by the Schoenfeld 
Parties and Dr. Alan H. Gold are outstanding. The terms of the Series A 
Preferred Stock, set forth in a Certificate of Designation filed with the 
Office of the Secretary of the State for the State of Delaware, are as 
follows: 

   Dividend Rights. Holders of Series A Preferred Stock are entitled to 
receive, prior to the payment of cash dividends on the Common Stock, 
cumulative dividends at the rate of $80 per share per annum, and no more, 
when, as and if declared by the Company's Board of Directors, out of funds 
legally available therefor. Dividends on the Series A Preferred Stock are 
payable, in the sole and absolute discretion of the Board of Directors, in 
cash, additional shares of Series A Preferred Stock (based upon the 
liquidation value thereof), or a combination thereof. Dividends may not be 
paid or declared on, and no other distributions may be made with respect to, 
and no expenditure shall be made for the purchase, redemption or retirement 
of, any of the Company's capital stock junior to or in parity with the Series 
A Preferred Stock, unless all cumulative dividends payable on the Series A 
Preferred Stock for all prior annual dividend periods have been paid. The 
Company has agreed with the Underwriter that it will not declare or pay any 
cash dividends on the Series A Preferred Stock without the prior written 
consent of the Underwriter. 

   Redemption. The Series A Preferred Stock may be redeemed at the option of 
the Company, as a whole at any time or in part from time to time, at $1,000 
per share. Written notice of redemption must be given to the registered 
holders of the Series A Preferred Stock not less than twenty (20) nor more 
than thirty (30) days prior to the date fixed for the redemption of the 
Series A Preferred Stock. The Company has agreed that it will not redeem any 
shares of Series A Preferred Stock prior to the fifth anniversary of the 
Effective Date, without the prior written consent of the Underwriter. 

   Liquidation Rights. Subject to the prior rights of the Company's creditors 
and the holders of senior securities, the holders of the Series A Preferred 
Stock are entitled to receive, upon any voluntary or involuntary liquidation, 
dissolution or winding-up of the Company, $1,000 per share, plus accrued and 
unpaid dividends. If, in any such case, the assets of the Company are 
insufficient to make such payment in full, then the available assets will be 
distributed among the holders of the Series A Preferred Stock and any other 
series of preferred stock which is in parity with the Series A Preferred 
Stock, ratably in proportion to the full amount to which each holder would be 
entitled. 

   Conversion Rights. Each share of Series A Preferred Stock is convertible 
into 222.22 shares of Common Stock (the "conversion rate"), subject to 
adjustment in certain events, at the option of the holder thereof commencing 
upon the earlier of September 30, 1999 and 24 months after the Effective 
Date. The conversion rate is subject to adjustment in the event of a stock 
split, stock dividend, recapitalization, merger, consolidation or cer-


                                       45
<PAGE>

tain other events. The right of conversion with respect to the shares of the 
Series A Preferred Stock called for redemption will terminate at the close of 
business on the business day preceding the date fixed for redemption. Upon 
conversion, no payment or allowance will be made in respect of any accrued 
but unpaid dividends on the Series A Preferred Stock. 

   Voting Rights. Holders of Series A Preferred Stock have no voting rights, 
except as may be required by law. 

STATUTORY PROVISIONS AFFECTING STOCKHOLDERS 

   Following the consummation of the Offering, the Company will be subject to 
Section 203 of the Delaware General Corporation Law, the State of Delaware's 
"business combination" statute. In general, such statute prohibits a publicly 
held Delaware corporation from engaging in various "business combination" 
transactions with any "interested stockholder" for a period of three years 
after the date of the transaction in which the person became an "interested 
stockholder," unless (i) the transaction in which the interested stockholder 
obtained such status or the business combination is approved by the Board of 
Directors prior to the date the interested stockholder obtained such status; 
(ii) upon consummation of the transaction which resulted in the stockholder 
becoming an "interested stockholder," the "interested stockholder" owned at 
least 85% of the voting stock of the corporation outstanding at the time the 
transaction commenced, excluding for purposes of determining the number of 
shares outstanding those shares owned by (a) persons who are directors and 
officers and (b) employee stock plans in which employee participants do not 
have the right to determine confidentially whether shares held subject to the 
plan will be tendered in a tender or exchange offer; or (iii) on or 
subsequent to such date the "business combination" is approved by the Board 
of Directors and authorized at an annual or special meeting of stockholders 
by the affirmative vote of at least 66 2/3% of the outstanding voting stock 
which is not owned by the "interested stockholder." A "business combination" 
includes mergers, asset sales and other transactions resulting in financial 
benefit to a stockholder. An "interested stockholder" is a person who, 
together with affiliates and associates, owns (or within three years, did 
own) 15% or more of a corporation's voting stock. The statute could prohibit 
or delay mergers or other takeover or change in control attempts with respect 
to the Company and, accordingly, may discourage attempts to acquire the 
Company. 

BRIDGE FINANCING 

   In November and December 1996, the Company sold an aggregate of 40 Units, 
each Unit consisting of the Company's 8% promissory note in the principal 
amount of $25,000 (the "Bridge Notes") and Bridge Warrants to purchase 62,500 
shares of Common Stock for a purchase price of $25,000 per Unit (or an 
aggregate of $1,000,000). The Bridge Notes are payable upon the earlier of 
November 27, 1997 and the consummation of an initial public offering or 
private placement of the Company's debt and/or equity securities resulting in 
gross proceeds to the Company of at least $5,000,000. Each Bridge Warrant 
entitles the registered holder thereof to purchase one share of Common Stock 
at an exercise price of $4.50 per share, subject to adjustment in certain 
events, at any time during the period commencing November 27, 1997 and ending 
on November 26, 2001. On the Effective Date, the Bridge Warrants will convert 
automatically into warrants having terms identical to the Warrants being 
offered in the Offering. The net proceeds of the Bridge Financing 
(approximately $820,000) were used in part to purchase machinery ($235,000) 
and for sales and marketing ($235,000). The Company used the remaining net 
proceeds as working capital, including the payment of some of the expenses of 
the Offering. 

REGISTRATION RIGHTS 

   Investors who acquired Bridge Warrants in connection with the Bridge 
Financing have the right to request registration of the Bridge Warrants (or 
securities issued in exchange therefor) and the shares of Common Stock issued 
or issuable upon exercise thereof in any registration statement filed by the 
Company with the Commission under the Securities Act (with certain 
exceptions) for the issuance and sale of its securities. The Company has 
registered for resale pursuant to the Selling Securityholder Prospectus 
warrants to purchase 2,250,000 shares of Common Stock (having terms identical 
to the Warrants offered hereby) which are to be issued on the Effective Date 
upon automatic conversion of the Bridge Warrants, and the shares of Common 
Stock issuable upon exercise of those warrants. The Company also has 
registered for resale pursuant to the Selling Securityholder 


                                       46
<PAGE>


Prospectus 33,436 shares of Common Stock issuable upon exercise of an option 
granted to an individual who through an affiliated entity, provided the 
Company with debt financing in 1995. The Company granted that individual 
piggyback and demand registration rights with respect to those shares. 
Investors in the Bridge Financing and the optionee have agreed with the 
Underwriter not to sell or otherwise dispose of securities of the Company, 
including shares of Common Stock (except under certain circumstances in 
connection with a third party tender offer for the Common Stock), for a 
period of 24 months following the Effective Date, without the prior written 
consent of the Underwriter, which may be granted or withheld in the sale and 
absolute discretion of the Underwriter. See "Selling Securityholder 
Offering." 

SHARES ELIGIBLE FOR FUTURE SALE 

   Upon completion of the Offering, the Company will have 2,619,907 shares of 
Common Stock outstanding, of which 1,500,000 will be transferable under the 
Securities Act. The remaining 1,119,907 shares, issued in private 
transactions, will be "restricted securities" (as that term is defined in 
Rule 144 promulgated under the Securities Act) which may be publicly sold 
only if registered under the Securities Act or if sold in accordance with an 
applicable exemption from registration, such as Rule 144. In general, under 
Rule 144 as currently in effect, subject to the satisfaction of certain other 
conditions, a person, including an affiliate of the Company, who has 
beneficially owned restricted securities for at least two years, is entitled 
to sell (together with any person with whom such individual is required to 
aggregate sales), within any three-month period, a number of shares that does 
not exceed the greater of 1% of the total number of outstanding shares of the 
same class, or, if the Common Stock is quoted on The Nasdaq Stock Market or a 
national securities exchange, the average weekly trading volume during the 
four calendar weeks preceding the sale. A person who has not been an 
affiliate of the Company for at least three months, and who has beneficially 
owned restricted securities for at least three years is entitled to sell such 
restricted shares under Rule 144 without regard to any of the limitations 
described above. Officers, directors and other securityholders of the Company 
owning and/or having rights to acquire in the aggregate 3,653,343 shares of 
Common Stock constituting restricted securities, have entered into agreements 
with the Underwriter not to sell or otherwise dispose of any securities of 
the Company, including shares of Common Stock, for a period of 24 months 
following the Effective Date (the "Lock-Up Agreements"), without the prior 
written consent of the Underwriter, which may be granted or withheld at the 
sole and absolute discretion of the Underwriter; provided, however, that if 
during such 24 month period, the Company's shares of Common Stock are subject 
to a tender offer and holders of the Company's Common Stock (other than the 
existing stockholders) agree to tender a majority of the outstanding shares 
of Common Stock to the offeror, then the Underwriter shall release all 
stockholders subject to the Lock-Up Agreement from the restrictions imposed 
thereby solely for the purpose of tendering their shares of Common Stock to 
the offeror pursuant to the terms of the tender offer. The Company has 
registered for resale pursuant to the Selling Securityholder Prospectus (i) 
warrants to purchase 2,500,000 shares of Common Stock (having terms identical 
to the Warrants offered hereby) and the shares of Common Stock issuable upon 
exercise thereof, and (ii) 33,436 shares of Common Stock issuable upon 
exercise of options, subject to the Lock-Up Agreements. Following expiration 
of the term of the Lock-Up Agreements, or the earlier release of the 
restrictions contained therein, 1,119,907 shares will become eligible for 
resale pursuant to Rule 144, subject to the volume limitations and compliance 
with the other provisions of Rule 144, assuming the sale of all shares 
pursuant to the Selling Securityholder Prospectus. Furthermore, the holders 
of the Underwriters' Warrants (including the securities issuable upon 
exercise thereof) have demand and piggyback registration rights with respect 
to the shares of Common Stock and Warrants issuable upon exercise of the 
Underwriters' Warrants. See "Description of Securities -- Registration 
Rights," "Certain Transactions," "Underwriting" and "Selling Securityholder 
Offering." 

   As a result of the Offering, an additional 2,250,000 shares of Common 
Stock (2,587,500 if the Over-Allotment Option is fully exercised) will be 
subject to issuance upon the exercise of the Warrants offered hereby. 


   As of December 31, 1996, there were eight record holders of the Common 
Stock. 


                                       47
<PAGE>

DIVIDEND POLICY 

   Since its inception, the Company has not paid any dividends on its Common 
Stock and it does not anticipate paying such dividends in the foreseeable 
future. The Company intends to retain earnings, if any, to finance its 
operations. 

REPORTS TO STOCKHOLDERS 

   The Company intends to furnish its stockholders with annual reports 
containing financial statements audited and reported upon by its independent 
certified public accountants after the end of each fiscal year, and will make 
available such other periodic reports as the Company may deem to be 
appropriate or as may be required by law. The Company's fiscal year end is 
December 31. Prior to the Effective Date, the Company will file a 
Registration Statement on Form 8-A with the Commission to register under, and 
be subject to the reporting requirements of, the Exchange Act. 

TRANSFER AGENT AND WARRANT AGENT 

   The Company has engaged Continental Stock Transfer & Trust Company to act 
as Transfer Agent for the Company's Common Stock and Warrant Agent for the 
Warrants. 


                                       48
<PAGE>

                                 UNDERWRITING 


   The Company has agreed to sell, and the Underwriter has agreed to purchase 
from the Company, 1,500,000 shares of Common Stock and 2,250,000 Warrants. 
The underwriting agreement between the Company and the Underwriter (the 
"Underwriting Agreement") provides that the obligations of the Underwriter 
are subject to certain conditions precedent. The Underwriter is committed to 
purchase all of such shares of Common Stock and Warrants, if any are 
purchased. 

   The Underwriter has advised that it proposes initially to offer the 
1,500,000 shares of Common Stock and 2,250,000 Warrants to the public at the 
respective initial public offering prices set forth on the cover page of this 
Prospectus and that it may allow to selected dealers who are members of the 
NASD concessions not in excess of $  per share of Common Stock and $  per 
Warrant, of which not more than $  per share of Common Stock and $  per 
Warrant may be re-allowed to certain other dealers. 

   The Underwriting Agreement also provides that the Underwriter will receive 
a non-accountable expense allowance of 3% of the gross proceeds of the 
Offering, of which $55,000 has been paid by the Company to date. The Company 
also has agreed to pay all expenses in connection with qualifying the shares 
of Common Stock and the Warrants offered hereby for sale under the laws of 
such states as the Underwriter may designate, including expenses of counsel 
retained for such purpose by the Underwriter. 

   Pursuant to the Over-allotment Option, which is exercisable for a period 
of 45 days after the closing of the Offering, the Underwriter may purchase up 
to 15% of the total number of shares of Common Stock and Warrants offered 
hereby, solely to cover over-allotments. 

   The Company has agreed to sell to the Underwriter, for nominal 
consideration, the Underwriter's Warrants to purchase an amount equal to 10% 
of the number of shares of Common Stock and Warrants sold to the public. The 
Underwriter's Warrants shall be exercisable for a period of five years 
commencing one year from the Effective Date at an exercise price equal to 
120% of the offering price of the shares of Common Stock and Warrants sold to 
the public in the Offering. The Underwriter's Warrants are not transferable 
for a period of one year after the Effective Date, except to officers of the 
Underwriter, members of the selling group and their officers and partners. 

   The Company has agreed that, upon written request of the then holder(s) of 
a majority of the Warrants and the shares of Common Stock issued and/or 
issuable upon exercise of the Underwriters' Warrants (the "Underwriters' 
Warrant Shares") which were originally issued to the Underwriter or to its 
designees, made at any time within the period commencing one year and ending 
five years after the Effective Date, the Company will file, at its sole 
expense, no more than once, a registration statement under the Securities Act 
registering the Underwriters' Warrant Shares. The Company has agreed to use 
its best efforts to cause the registration statement to become effective. The 
holders of the Underwriter's Warrants may demand registration without 
exercising the Underwriter's Warrants and, in fact, are never required to 
exercise same. 

   The Company has also agreed that if, at any time within the period 
commencing one year and ending five years after the Effective Date, it should 
file a registration statement with the Commission pursuant to the Securities 
Act, regardless of whether some of the holders of the Underwriter's Warrants 
and the Underwriter's Warrant Shares shall have therefore availed themselves 
of any of the registration rights above, the Company, at its own expense, 
will offer to said holders (with certain exceptions) the opportunity to 
register or qualify the Underwriter's Warrant Shares. The objection of a 
subsequent underwriter to the above "piggyback" registration rights would 
preclude such inclusion. 

   In addition to the demand and "piggyback" registration rights, the Company 
will cooperate with the then holders of the Underwriter's Warrants and 
Underwriter's Warrant Shares in the preparation and execution of any 
registration statement required in order to sell or transfer the 
Underwriter's Warrant Shares and will supply all information required 
therefore, but such additional expenses of such registration statement will 
be pro-rated between the Company and the holders of the Underwriter's 
Warrants and Underwriter's Warrant Shares according to the aggregate sales 
price of the securities being issued. 


                                       49
<PAGE>

   For the life of the Underwriter's Warrants, the holders thereof are given, 
at nominal cost, the opportunity to profit from a rise in the market price of 
the Common Stock with a resulting dilution in the interest of other 
stockholders. Further, such holders may be expected to exercise the 
Underwriter's Warrants at a time when the Company would in all likelihood be 
able to obtain equity capital on terms more favorable than those provided in 
the Underwriter's Warrants. 

   The Company has agreed, for a period of 24 months after the Effective 
Date, not to issue any shares of Common Stock, preferred stock or any 
warrants, options or other rights to purchase Common Stock or preferred stock 
without the prior written consent of the Underwriter, except as contemplated 
by or as disclosed in the Prospectus. Officers, directors and other 
securityholders of the Company owning and/or having rights to acquire in the 
aggregate 3,653,343 shares of Common Stock constituting restricted 
securities, have entered into agreements with the Underwriter not to sell or 
otherwise dispose of any securities of the Company, including shares of 
Common Stock (except under certain circumstances in connection with a third 
party tender offer for the Common Stock), for a period of 24 months following 
the Effective Date, without the prior written consent of the Underwriter, 
which may be granted or withheld in the sole and absolute discretion of the 
Underwriter. See "Description of Securities -- Shares Eligible for Future 
Sale." 

   The Underwriting Agreement provides for reciprocal indemnification between 
the Company and the Underwriter against liabilities in connection with the 
Offering, including liabilities under the Securities Act. 

   The Company has agreed that upon closing of the Offering it will, for a 
period of not less than three years, engage a designee of the Underwriter as 
advisor to the Board. In addition and in lieu of the Underwriter's right to 
designate an advisor, the Company has agreed, if requested by the Underwriter 
during such three year period, to nominate and use its best efforts to cause 
the election of a designee of the Underwriter as a director of the Company. 
The Underwriter has not yet designated any such person. 

   The Underwriter intends to act as a market maker for the Common Stock and 
Warrants after the closing of the Offering. 

   The Company will pay the Underwriter a fee of 8% of the exercise price of 
each Warrant exercised, provided (i) the market price of the Common Stock on 
the date the Warrant was exercised was equal to or greater than the Warrant 
exercise price on that date, (ii) the exercise price of the Warrant was 
solicited by a member of the NASD, (iii) the Warrant was not held in a 
discretionary account, (iv) the disclosure of compensation arrangements was 
made in documents provided to the holders of the Warrants, (v) the 
solicitation of the exercise of the Warrant was not a violation of Rule 10b-6 
under the Exchange Act and (vi) the Underwriter is designated in writing as 
the soliciting NASD member. Unless granted an exemption from Rule 10b-6 under 
the Exchange Act by the Commission, the Underwriter and any other soliciting 
broker/dealers will be prohibited from engaging in any market making 
activities or solicited brokerage activities with regard to the Company's 
securities during the periods prescribed by exemption (xi) to Rule 10b-6 
before the solicitation of the exercise of any Warrant until the later of the 
termination of such solicitation activity or the termination of any right the 
Underwriter and any other soliciting broker/dealer may have to receive a fee 
for the solicitation of the exercise of the Warrants. 

   The Underwriter acted as placement agent for the Bridge Financing, for 
which it received selling commissions of $100,000 and a non-accountable 
expense allowance of $30,000. 

   The Company has granted the Underwriter a right of first refusal for a 
period of two years from the Effective Date with respect to the underwriting 
or placement of certain securities the Company, its affiliates or any of its 
present or future subsidiaries. 

   The Company has agreed to retain the Underwriter as a management and 
financial advisor for a period of 24 months commencing on the Effective Date 
at a fee equal to $4,000 per month. The entire fee ($96,000) is payable at 
the closing of the Offering. In its capacity as an advisor to the Company, 
the Underwriter will be obligated to provide general financial advisory 
services to the Company on an as-needed basis with respect to possible future 
financing or acquisitions by the Company and related matters. The Underwriter 
is not obligated to provide any minimum number of hours of advisory services 
to the Company. 


                                       50
<PAGE>

   In addition, the Company has agreed to engage a financial public relations 
firm reasonably satisfactory to the Underwriter no later than the Effective 
Date. Such firm, or an acceptable substitute firm, shall be continuously 
engaged from the Effective Date to a date 24 months from the closing of the 
Offering. 

   The initial public offering prices of the shares of Common Stock and 
Warrants offered hereby and the initial exercise price and other terms of the 
Warrants have been determined by negotiation between the Company and the 
Underwriter and do not necessarily bear any direct relationship to the 
Company's assets, earnings, book value per share or other generally accepted 
criteria of value. Factors considered in determining the offering prices of 
the shares of Common Stock and Warrants and the exercise price of the 
Warrants included the business in which the Company is engaged, the Company's 
financial condition, an assessment of the Company's management, the general 
condition of the securities markets and the demand for similar securities of 
comparable companies. 

                         SELLING STOCKHOLDER OFFERING 

   The Company has registered for resale under a separate prospectus (the 
"Selling Securityholder Prospectus") as part of the Registration Statement 
warrants to purchase 2,500,000 shares of Common Stock (having terms identical 
to the warrants offered hereby) and the shares of Common Stock issuable upon 
exercise thereof, and 33,436 shares of Common Stock issuable upon exercise of 
an option granted to an individual who, through an affiliated entity, 
provided debt financing to the Company in 1995. Those warrants were issued in 
connection with a bridge financing completed by the Company in December 1996. 
Prior to the Effective Date, each of the selling securityholders named in the 
Selling Securityholder Prospectus (the "Selling Securityholders") will enter 
into an agreement with the Underwriter not to sell or otherwise dispose of 
any securities of the Company (except under certain circumstances in 
connection with a third party tender offer for the Common Stock) for a period 
of 24 months following the Effective Date, without the prior written consent 
of the Underwriter, which may be granted or withheld in the sole and absolute 
discretion of the Underwriter. The Underwriter has agreed that it will not 
consent to the sale of any of the securities offered by the Selling 
Securityholders pursuant to the Selling Stockholder Prospectus prior to the 
date upon which the Over-Allotment Option expires, or such earlier date upon 
which the Over-Allotment Option is fully exercised. See "Description of 
Securities -- Bridge Financing," "Description of Securities -- Registration 
Rights" and "Description of Securities -- Shares Eligible for Future Sale." 

   The Company will not receive any proceeds from the sale of the warrants or 
shares of Common Stock by the Selling Securityholders, but will receive the 
exercise price of the warrants and options exercised. Sales of the securities 
offered by the Selling Securityholders, or even the potential for such sales, 
would likely have an adverse effect on the market price of the Company's 
securities. 

                                LEGAL MATTERS 

   The validity of the securities offered hereby will be passed upon for the 
Company by Snow Becker Krauss P.C., 605 Third Avenue, New York, New York 
10158-0125. Certain legal matters in connection with the Offering will be 
passed upon for the Underwriter by Gersten, Savage, Kaplowitz, Fredericks & 
Curtin, LLP, 101 East 52nd Street, New York, New York 10022-6018. 

                                   EXPERTS 

   The consolidated balance sheet as of December 31, 1995 and the 
consolidated statements of operations, stockholders' deficiency and cash 
flows for each of the two years in the period ended December 31, 1995, 
included in the Prospectus, have been included herein in reliance on the 
report of Coopers & Lybrand LLP, independent accountants, given on the 
authority of said firm as experts in accounting and auditing. 



                                       51
<PAGE>

UNIVEC, INC. AND SUBSIDIARY 

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS 

<TABLE>
<CAPTION>
                                                                                                        Page 
                                                                                                      -------- 
<S>                                                                                                   <C>
Report of Independent Accountants  ................................................................     F-2 
Consolidated Balance Sheets as of December 31, 1995 (audited) and 
  September 30, 1996 (unaudited) ..................................................................     F-3 
Consolidated Statements of Operations for the years ended December 31, 1995 and 1994 (audited), 
  and for the nine months ended September 30, 1996 (unaudited) ....................................     F-4 
Consolidated Statements of Stockholders' Deficiency for the years ended December 31, 1995 and 1994 
  (audited) and for the nine months ended September 30, 1996 (unaudited) ..........................     F-5 
Consolidated Statements of Cash Flows for the years ended December 31, 1995 and 1994 (audited), 
  and for the nine months ended September 30, 1996 (unaudited) ....................................     F-6 
Notes to Consolidated Financial Statements  .......................................................     F-7 
</TABLE>

                                     F-1 
<PAGE>

REPORT OF INDEPENDENT ACCOUNTANTS 

To the Board of Directors, Stockholders of Univec, Inc.: 

   We have audited the accompanying balance sheet of Univec, Inc. (the 
"Company") as of December 31, 1995, and the related statements of operations, 
stockholders' deficiency and cash flows for each of the two years in the 
period then ended. These financial statements are the responsibility of the 
Company's management. Our responsibility is to express an opinion on these 
financial statements based on our audits. 

   We conducted our audits in accordance with generally accepted auditing 
standards. Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether the financial statements are free 
of material misstatement. An audit includes examining, on a test basis, 
evidence supporting the amounts and disclosures in the financial statements. 
An audit also includes assessing the accounting principles used and 
significant estimates made by management, as well as evaluating the overall 
financial statement presentation. We believe that our audits provide a 
reasonable basis for our opinion. 

   In our opinion, the financial statements referred to above present fairly, 
in all material respects, the financial position of Univec, Inc. as of 
December 31, 1995 and the results of its operations and its cash flows for 
each of the two years in the period then ended, in conformity with generally 
accepted accounting principles. 

   The accompanying financial statements have been prepared assuming that the 
Company will continue as a going concern. As discussed in Note 2 to the 
financial statements, the Company has suffered recurring losses from 
operations and has a net capital deficiency that raises substantial doubt 
about the Company's ability to continue as a going concern. Management's 
plans with regard to these matters are also discussed in Note 2. The 
financial statements do not include any adjustments relating to the 
recoverability and classification of asset carrying amounts or the amount and 
classification of liabilities that might result should the Company be unable 
to continue as a going concern. 


Melville, New York 
September 18, 1996, except for 
Note 13 as to which the 
date is December 14, 1996. 


                                     F-2 
<PAGE>

                         UNIVEC, INC. AND SUBSIDIARY 
                         CONSOLIDATED BALANCE SHEETS 

<TABLE>
<CAPTION>
                                                                      December 31,     September 30, 
                                                                          1995             1996 
                                                                     --------------   --------------- 
                                                                                        (Unaudited) 
<S>                                                                  <C>              <C>                
                              ASSETS: 
Cash  ............................................................    $    79,978       $    63,746 
Accounts receivable  .............................................         63,326           154,031 
Inventory  .......................................................                           86,364 
                                                                     --------------   --------------- 
     Total current assets  .......................................        143,304           304,141 
Fixed assets, net  ...............................................        375,613           822,081 
Patent rights, net  ..............................................         88,000            76,000 
Other assets  ....................................................                           32,264 
                                                                     --------------   --------------- 
     Total assets  ...............................................    $   606,917       $ 1,234,486 
                                                                     ==============   =============== 
               LIABILITIES AND STOCKHOLDERS' DEFICIENCY: 
Accounts payable  ................................................    $    84,141       $   373,244 
Accrued expenses  ................................................        826,662           312,339 
Notes payable  ...................................................        665,000           125,000 
Patent acquisition liability, current portion  ...................         30,000            30,000 
                                                                     --------------   --------------- 
     Total current liabilities  ..................................      1,605,803           840,583 
Unearned income in connection with supply and licensing 
   agreements ....................................................                        1,683,788 
Notes payable to officer  ........................................                          732,135 
Notes payable to stockholders  ...................................        262,974           277,296 
Due to affiliates  ...............................................      1,095,507         1,108,342 
Patent acquisition liability  ....................................         20,000 
                                                                     --------------   --------------- 
     Total liabilities  ..........................................      2,984,284         4,642,144 
Commitments and contingencies (Notes 2 and 11) 
Stockholders' deficiency: 
   Preferred stock $.001 par value; 4,997,500 shares authorized; 
     none issued and outstanding  ................................ 
   Series A 8% Cumulative Convertible Preferred Stock, $.001 par 
     value, 2,500 shares authorized; none issued and outstanding 
   Common stock $.001 par value; 25,000,000 shares authorized; 
     issued and outstanding 1,059,001 shares (Note 1)  ...........          1,059             1,059 
   Additional paid-in capital ....................................        433,941           433,941 
   Accumulated deficit ...........................................     (2,812,367)       (3,815,158) 
   Less deferred offering costs ..................................                          (27,500) 
                                                                     --------------   ---------------  
     Total stockholders' deficiency  .............................     (2,377,367)       (3,407,658) 
                                                                     --------------   --------------- 
     Total liabilities and stockholders' deficiency  .............    $   606,917       $ 1,234,486 
                                                                     ==============   =============== 
</TABLE>

The accompanying notes are an integral part of the consolidated financial 
statements. 


                                      F-3
<PAGE>

                         UNIVEC, INC. AND SUBSIDIARY 
                    CONSOLIDATED STATEMENTS OF OPERATIONS 

<TABLE>
<CAPTION>
                                                                                   Nine months ended 
                                                    December 31,                     September 30, 
                                                1994            1995             1995            1996 
                                            -------------   -------------    -------------   -------------- 
                                                                                      (Unaudited) 
<S>                                         <C>             <C>              <C>             <C>
Sales  ..................................                    $1,106,930                       $   282,000 
Cost of sales  ..........................                     1,016,530                           223,931 
                                                            -------------                    -------------- 
          Gross profit  .................                        90,400                            58,069 
Expenses: 
     Marketing  .........................    $   80,162         115,431       $  111,346           97,699 
     Product development  ...............       202,881         299,498          258,736           55,428 
     General and administrative  ........       331,396         433,012          374,193          687,856 
     Interest  ..........................        47,414         153,473          126,532          149,877 
     Royalties  .........................                        35,000           25,000           70,000 
                                            -------------   -------------    -------------   -------------- 
          Total expenses  ...............       661,853       1,036,414          895,807        1,060,860 
                                            -------------   -------------    -------------   -------------- 
          Net loss  .....................    $ (661,853)     $ (946,014)      $ (895,807)     $(1,002,791) 
                                            =============   =============    =============   ============== 
Net loss per share  .....................    $     (.65)     $     (.89)      $     (.85)     $      (.95) 
                                            =============   =============    =============   ============== 
Weighted average common stock 
   outstanding 
   (Note 1) .............................     1,025,608       1,059,001        1,056,218        1,059,001 
                                            =============   =============    =============   ============== 

</TABLE>

The accompanying notes are an integral part of the consolidated financial 
statements. 

                                     F-4 
<PAGE>

                         UNIVEC, INC. AND SUBSIDIARY 
              CONSOLIDATED STATEMENT OF STOCKHOLDERS' DEFICIENCY 

<TABLE>
<CAPTION>
                                                            Common Stock 
                                                      ----------------------- 
                                                        Shares         Amount 
                                                       ---------       ------- 
<S>                                                   <C>              <C>
Balance, December 31, 1993  .....................      1,025,608       $1,025 
Collection of stock subscription  ............... 
Net loss for the year ended December 31, 1994  .. 
                                                       ---------       ------- 
Balance, December 31, 1994  .....................      1,025,608        1,025 
Issuance of stock  ..............................         33,393           34 
Stockholder payment of company liability  ....... 
Net loss for the year ended December 31, 1995  .. 
                                                       ---------       ------- 
Balance, December 31, 1995  .....................      1,059,001        1,059 
Payment of offering costs (unaudited)  .......... 
Net loss for the nine months ended September 30, 
  1996 (unaudited) .............................. 
                                                       ---------       ------- 
Balance, September 30, 1996 (unaudited)  ........      1,059,001       $1,059 
                                                       =========       ======= 
</TABLE>

                    (RESTUBBED TABLE CONTINUED FROM ABOVE) 

<TABLE>
<CAPTION>
                                                    Additional                    Deferred        Stock            Total 
                                                     Paid-in      Accumulated     Offering    Subscriptions    Stockholders' 
                                                     Capital        Deficit         Costs       Receivable        Equity 
                                                    ----------   -------------    ----------   -------------   ------------- 
<S>                                                 <C>          <C>              <C>         <C>              <C>
Balance, December 31, 1993  .....................    $ 98,975     $(1,204,500)         --       $ (35,000)      $(1,139,500) 
Collection of stock subscription  ...............                                                  35,000            35,000 
Net loss for the year ended December 31, 1994  ..                    (661,853)                                     (661,853) 
                                                    ----------   -------------    ----------   -------------   ------------- 
Balance, December 31, 1994  .....................      98,975      (1,866,353)                                   (1,766,353) 
Issuance of stock  ..............................     299,966                                                       300,000 
Stockholder payment of company liability  .......      35,000                                                        35,000 
Net loss for the year ended December 31, 1995  ..                    (946,014)                                     (946,014) 
                                                    ----------   -------------    ----------   -------------   ------------- 
Balance, December 31, 1995  .....................     433,941      (2,812,367)                                   (2,377,367) 
Payment of offering costs (unaudited)  ..........                                  (27,500)                         (27,500) 
Net loss for the nine months ended September 30, 
  1996 (unaudited) ..............................                  (1,002,791)                                   (1,002,791) 
                                                    ----------   -------------    ----------   -------------   ------------- 
Balance, September 30, 1996 (unaudited)  ........    $433,941     $(3,815,158)   $ (27,500)     $      --       $(3,407,658) 
                                                    ==========   =============    ==========   =============   ============= 
</TABLE>

The accompanying notes are an integral part of the consolidated financial 
statements. 

                                     F-5 
<PAGE>

                         UNIVEC, INC. AND SUBSIDIARY 
                    CONSOLIDATED STATEMENTS OF CASH FLOWS 

<TABLE>
<CAPTION>
                                                                                             Nine months ended 
                                                              December 31,                     September 30, 
                                                     ------------------------------   -------------------------------- 
                                                          1994            1995             1995             1996 
                                                      -------------   -------------    -------------   --------------- 
                                                                                                (Unaudited) 
<S>              <C>                                                  <C>              <C>             <C>
Cash flows from operating activities: 
   Net loss .......................................    $ (661,853)    $  (946,014)     $ (895,807)     $ (1,002,791) 
   Adjustments to reconcile net loss to net cash 
     used in operating activities: 
        Payment of Company liability by stockholder 
        Issuance of stock for services ............                        35,000 
        Depreciation and amortization .............         8,590          18,616          19,447            14,814 
        Changes in assets and liabilities: 
          Accounts receivable  ....................                       (63,326)                          (90,705) 
          Inventory  ..............................                                                         (86,364) 
          Accounts payable and accrued expenses  ..       477,485         425,735         313,168           506,915 
                                                      -------------   -------------    -------------   --------------- 
             Net cash used in operating activities       (175,778)       (529,989)       (563,192)         (658,131) 
                                                      -------------   -------------    -------------   --------------- 
Cash flows from investing activities: 
   Purchase of fixed assets .......................        (3,950)       (373,990)       (365,608)         (449,282) 
   Payment on note for acquisition of patent ......       (27,000)        (35,000)        (25,000)          (20,000) 
                                                      -------------   -------------    -------------   --------------- 
             Net cash used in investing activities        (30,950)       (408,990)       (390,608)         (469,282) 
                                                      -------------   -------------    -------------   --------------- 
Cash flows from financing activities: 
   Proceeds from the issuance of common stock .....        35,000         300,000         300,000 
   Payment of notes ...............................                                                        (790,000) 
   Proceeds from issuance of notes ................                       665,000         530,000           250,000 
   Advances from affiliates/stockholders, net .....       178,200          46,430         120,838            27,157 
   Deferred debt costs ............................                                                         (32,264) 
   Deferred offering costs ........................                                                         (27,500) 
   Unearned income on supply and licensing 
     agreements  ..................................                                                       1,683,788 
                                                      -------------   -------------    -------------   --------------- 
             Net cash provided by financing 
               activities  ........................       213,200       1,011,430         950,838         1,111,181 
                                                      -------------   -------------    -------------   --------------- 
             Net increase (decrease) in cash ......         6,472          72,451          (2,962)          (16,232) 
Cash at beginning of period  ......................         1,055           7,527           7,527            79,978 
                                                      -------------   -------------    -------------   --------------- 
Cash at end of period  ............................     $   7,527      $   79,978       $   4,565       $    63,746 
                                                      =============   =============    =============   =============== 
Supplemental disclosures  ......................... 
   Cash paid during the year for: 
     Interest  ....................................     $     631          52,899 
     Income taxes  ................................           350             350 
Supplemental disclosures of noncash investing and 
   financing activities: 
     Patent rights acquired through issuance of 
        debt for $112,000 in 1994. ................ 

</TABLE>

The accompanying notes are an integral part of the consolidated financial 
statements. 

                                     F-6 
<PAGE>

                         UNIVEC, INC. AND SUBSIDIARY 
                  Notes to Consolidated Financial Statements 

1. OPERATIONS AND REORGANIZATION: 


   Univec, Inc. (the "Company" or "Univec") was incorporated on August 18, 
1992 in the State of New York. The Company was formed to develop, produce 
market medical products and resell medical devices of other companies on a 
global basis. 

   On October 7, 1996, Univec formed a wholly-owned subsidiary organized 
under the laws of Delaware. The new corporation has been authorized with 
25,000,000 shares of common stock, $.001 par value and 5,000,000 shares of 
preferred stock, $.001 par value. The Company merged with its wholly-owned 
subsidiary, with the wholly-owned subsidiary being the surviving corporation. 
Accordingly, the Company issued 10,256 for each outstanding common share of 
the parent company. The accompanying financial statements of the Company 
retroactively reflect the foregoing reincorporation merger to present the 
current capitalization. 

2. GOING CONCERN: 

   The financial statements have been prepared on a going concern basis, 
which contemplates realization of assets and liquidation of liabilities in 
the ordinary course of business. The Company has a working capital deficit of 
$1,462,499 and a stockholders' deficiency of $2,377,367 as of December 31, 
1995. The ability to continue as a going concern is dependent, among other 
things, upon the Company's obtaining adequate long-term financing and the 
attainment of profitable commercial operations. Management has signed a 
letter of intent to raise additional working capital through an initial 
public offering ("IPO"). 

   Although management expects that the above factors will allow the Company 
to continue as a going concern, there is no assurance that the financing will 
be consummated or revenues from product sales will generate profitable 
operations. The financial statements do not include any adjustments that 
might result from the outcome of this uncertainty. 

3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: 
BASIS OF PRESENTATION 


   The Company's financial statements were prepared as a development stage 
enterprise from August 18, 1992 (inception) through fiscal 1994. Prior to 
1996, the Company primarily directed its activities toward establishing the 
business including product development, financing, negotiating supply 
manufacturing contracts and raising capital. 


CONSOLIDATION 

   The consolidated financial statements include the accounts of the Company 
and its wholly-owned subsidiary, Rx Ultra, Inc., which was incorporated on 
February 2, 1996. All material intercompany balances and transactions have 
been eliminated. 

INVENTORY 

   Inventory is valued at the lower of cost, determined by the first-in, 
first-out method, or market. 

FIXED ASSETS 

   Fixed assets are stated at original cost less accumulated depreciation. 
Fixed assets are depreciated on a straight-line basis over their estimated 
useful life of five years. Maintenance and repairs are charged to expense as 
incurred; renewals and improvements which extend the life of assets are 
capitalized. Gains or losses on the disposal of fixed assets are charged to 
operations. 

                                     F-7 
<PAGE>

                         Univec, Inc. and Subsidiary 
          Notes to Consolidated Financial Statements  - (Continued) 

PATENT RIGHTS AND ROYALTIES 

   Patent rights acquired are capitalized and amortized on a straight line 
basis over an estimated useful life of seven years. Royalties based on future 
revenues will be charged to operations when and if they are incurred (see 
Note 5). 

PRODUCT DEVELOPMENT 

   Research and development costs are expensed as incurred. 

UNAUDITED INFORMATION 

   The unaudited financial statements have been prepared pursuant to the 
rules and regulations of the Securities and Exchange Commission. Certain 
information and note disclosures normally included in annual financial 
statements prepared in accordance with generally accepted accounting 
principles have been condensed or omitted pursuant to those rules and 
regulations, although the Company believes that the disclosures made are 
adequate to make the information presented not misleading. These unaudited 
financial statements have been prepared on the same basis as audited 
financial statements and reflect, in the opinion of Company management, all 
adjustments (which include only normal recurring adjustments) necessary to 
fairly present the results of operations, changes in cash flows and financial 
position as of and for the periods presented. These unaudited financial 
statements should be read in conjunction with the audited financial 
statements and related notes. The results for the interim periods presented 
are not necessarily indicative of results to be expected for a full year. 

INCOME TAXES 

   The Company records its income taxes under the provisions of the Statement 
of Financial Accounting Standards No. 109 "Accounting for Income Taxes," 
(SFAS No. 109). This method requires recognition of deferred tax liabilities 
and assets for the expected future tax consequences of events that have been 
included in the financial statements or tax returns. Under SFAS No. 109, 
deferred tax liabilities and assets are determined based on the difference 
between the financial statement and tax bases of assets and liabilities using 
enacted tax rates in effect for the year in which the differences are 
expected to reverse. See Note 10. 

   The Company had elected treatment as an S corporation for Federal and 
state income taxation as of January 1, 1995. S corporation taxable income, 
whether distributed or not, is passed through and taxed at the stockholder 
level. Accordingly, for the above referenced period, no provision for Federal 
income taxes is included in the accompanying statements of operations. 

LOSS PER SHARE 

   Loss per share has been computed by dividing net losses by the weighted 
average number of common and common equivalent shares during each period. 
Retroactive restatement has been made to all share and per share amounts for 
the reorganization discussed in Note 1. 

ESTIMATES 

   The preparation of financial statements in conformity with generally 
accepted accounting principles requires management to make estimates and 
assumptions that affect the reported amounts of assets and liabilities and 
disclosure of contingent assets and liabilities at the date of the financial 
statements and the reported amounts of revenues and expenses during the 
reporting period. Actual results could differ from those estimates. 

DEFERRED OFFERING COSTS 

   At September 30, 1996, the Company has deferred costs aggregating $27,500 
(unaudited), in connection with an expected public offering of its equity 
securities. If the offering is unsuccessful, such costs will be charged to 
operations. 

                                     F-8 
<PAGE>

                         Univec, Inc. and Subsidiary 
          Notes to Consolidated Financial Statements  - (Continued) 

DEBT ISSUANCE COSTS 

   At September 30, 1996, the Company has incurred debt issuance costs 
aggregating $32,264 (unaudited) in connection with a private placement of 
debt completed during December 1996 (see Note 13). These costs are being 
deferred, and are included in other assets until the placement is completed. 
These costs will be amortized to interest expense using the effective 
interest method over the life of the related debt. 

CONCENTRATION OF CREDIT RISK 

   Financial instruments which potentially subject the Company to 
concentration of credit risk consist of cash deposits. Cash balances are held 
principally at one financial institution. 

   The Company's contract manufacturers are concentrated among a few 
suppliers and assemblers. The loss of any one supplier or assembler could 
have a significant impact on the Company's financial position or results of 
operations. 

   Sales for 1995 and for the nine months ended September 30, 1996 resulted 
primarily from the resale of medical devices manufactured by others. 

FAIR VALUE OF FINANCIAL INSTRUMENTS 

   Notes payable are reflected in the accompanying balance sheet at amounts 
considered by management to reasonably approximate fair value. The fair value 
of the Company's notes payable approximates recorded amounts as similar 
borrowings have been offered to the Company at comparable rates and 
maturities. 

NEWLY ISSUED ACCOUNTING STANDARDS 

   In October 1995, the Financial Accounting Standards Board issued Statement 
of Financial Accounting Standards No. 123, "Accounting for Stock-Based 
Compensation," ("SFAS No. 123"). The Statement, which becomes effective in 
fiscal 1996, allows companies to measure compensation cost in connection with 
employee stock compensation plans using a fair value based method or to 
continue to use an intrinsic value based method, which generally does not 
result in compensation cost. The Company has not yet decided which method it 
will utilize relating to its stock-based employee plans. 

4. FIXED ASSETS: 

   Fixed assets consist of the following: 

                                           December 31,        September 30, 
                                               1995                 1996 
                                           --------------      --------------- 
                                                                (Unaudited) 
Construction in progress - machinery         $211,138             $655,677 
Factory equipment  ..................         152,188              152,188 
Office equipment  ...................          15,591               20,334 
                                           --------------      --------------- 
                                              378,917              828,199 
Less accumulated depreciation  ......          (3,304)              (6,118) 
                                           --------------      --------------- 
                                             $375,613              822,081 
                                           ==============      =============== 

5. PATENT RIGHTS: 

   On June 30, 1994, the Company entered into an exclusive license agreement 
with the estate of an inventor related to two patents for a non-reusable 
syringe. Such agreement includes fixed payments aggregating $112,000 through 
June, 1997. Thereafter, the Company is required to pay quarterly royalty 
payments of 5% of net sales 


                                     F-9 
<PAGE>

                         Univec, Inc. and Subsidiary 
          Notes to Consolidated Financial Statements  - (Continued) 

of product manufactured by Univec under the license agreement or 10% of the 
difference between net sales and purchase price of product manufactured under 
the license agreement by third parties for Univec shall be made. Univec may 
grant non-exclusive sublicenses under the agreement, in which case 10% of any 
royalties collected by Univec would be payable to the inventor's estate. If 
the manufactured product does not use the non-reusable syringe of the type 
discussed in the patent, no royalties are due, other than the minimum annual 
licensing fees. 

   Patent rights consist of the following: 

<TABLE>
<CAPTION>
                                        December 31,           September 30, 
                                            1995                    1996 
                                       --------------          --------------- 
                                                                (Unaudited) 
<S>                                    <C>                     <C>
Patent rights  ...............            $112,000                $112,000 
Less accumulated amortization              (24,000)                (36,000) 
                                       --------------          --------------- 
                                          $ 88,000                $ 76,000 
                                       ==============          =============== 
</TABLE>

   Amortization expense for fiscal 1995 and for the nine months ended 
September 30, 1996 was $16,000 and $12,000 (unaudited), respectively. 

   The Company paid $82,000 (unaudited) through September 30, 1996 in 
connection with this agreement, and the remaining fixed payments are 
scheduled to be paid as follows: 

1996 .............................................................   $10,000 
1997 .............................................................    20,000 
                                                                    ---------- 
                                                                     $30,000 
                                                                    ========== 

6. ACCRUED EXPENSES: 

   Accrued expenses consist of the following: 

                                           December 31,        September 30, 
                                               1995                 1996 
                                           --------------      --------------- 
                                                                (Unaudited) 
Payroll payable to officers (Note 7)         $602,132 
Interest  ...........................          41,859             $  9,904 
Professional fees  ..................         142,143              190,358 
Royalties  ..........................          25,000 
Other  ..............................          15,528              112,077 
                                           --------------      --------------- 
                                             $826,662             $312,339 
                                           ==============      =============== 

7. NOTES PAYABLE: 

   On February 9, 1995, the Company entered into a term note agreement with 
an available line of $600,000. This facility is collateralized by the assets 
of the Company and bears interest at a rate of 16%. As of December 31, 1995, 
$540,000 was outstanding under this agreement. During July 1996, the Company 
repaid the outstanding balance. Interest expense for fiscal 1995 and for the 
nine months ended September 30, 1996 approximated $49,000 and $43,000 
(unaudited), respectively, in connection with this agreement. 

   In December 1995, the Company issued a demand note payable of $125,000. 
The note is collateralized by the assets of the Company and bears an interest 
rate of 12 1/2%. The note agreement contains an option to convert the note 
into common shares of the Company at the IPO price (35,715 shares at a 
proposed share price of $3.50). 


                                     F-10 
<PAGE>

                         Univec, Inc. and Subsidiary 
          Notes to Consolidated Financial Statements  - (Continued) 


8. NOTES PAYABLE TO OFFICERS AND STOCKHOLDERS: 

   In September 1996, the Company entered into an agreement to convert the 
outstanding balance owed two officers into non-interest bearing notes due the 
earlier of two years following an IPO or September 30, 1999. As of September 
30, 1996 the balance of approximately $732,000 (unaudited) has been 
classified as long term (see Note 6). 

   Notes payable to stockholders at December 31, 1995 and September 30, 1996 
of $262,974 and $277,296 (unaudited), respectively,(including accrued 
interest) are due on demand and bear interest at a rate of 8% per annum. 
Interest expense for fiscal 1995 and for the nine months ended September 30, 
1996 approximated $17,900 and $14,300 (unaudited), respectively. In December 
1996, these notes were converted to Series A Preferred Stock and, as such, 
have been classified as non-current liabilities as of December 31, 1995 and 
September 30, 1996. (See Note 13.) 

   Of the $277,296 outstanding at September 30, 1996 $116,373 will 
automatically be converted into shares of common stock upon the consummation of
an IPO (33,250 shares at a proposed share price of $3.50). 

9. DUE TO AFFILIATES: 

   Upon founding of the Company in August 1992, pending Univec's obtaining its
own financing, the Company's costs were funded by JS Associates, Inc. (the
"Affiliate"), a related entity whose sole stockholder is also an officer of the
Company. These costs, representing research, market analysis and development and
various administrative costs (including office salaries and rental of office
space), were accrued by Univec as paid by the Affiliate. Such costs have been
included in the statement of operations based on the type of costs incurred to
be reimbursed to the Affiliate. The related liability has been recorded on the
balance sheet as due to affiliate. These advances are due on demand and bear
interest at a rate of 8% per annum. Interest expense for fiscal 1995 and for the
nine months ended in connection with these advances approximated $78,000 and
$58,400 (unaudited), respectively. In December 1996, these notes were converted
to Series A Preferred Stock and, as such, have been classifed as non-current
liabilities as of December 31, 1995 and September 30, 1996. (See Note 13.)

10. INCOME TAXES: 

   The Company has cumulative losses of $2,812,367 and $3,815,158 (unaudited) 
as of December 31, 1995 and September 30, 1996, respectively. Losses 
aggregating approximately $1,900,000 which were incurred prior to the Company 
changing its tax status to an S corporation would be available should the 
Company return to C corporation status. The Company's net operating loss for 
tax purposes differs from the loss for financial reporting purposes as a 
result of certain costs being capitalized and expensed over a five-year 
period for tax purposes. The Company has recorded a full valuation allowance 
against the potential future benefit of such deferred tax assets. 

   Upon closing of the proposed public offering, the Company's income tax 
status as an S corporation will terminate. The Company will convert to a C 
corporation and will be subject to both Federal and state income taxes. 
Accordingly, the Company will record a deferred tax asset of approximately 
$817,000 resulting from net operating loss carryforwards and a corresponding 
valuation allowance of approximately $817,000. Any income tax adjustment 
required as a result of the conversion will be reflected in the period C 
corporation status becomes effective. 

   In addition, the undistributed losses of the S corporation through the 
date of consummation of the offering will be reclassified to additional 
paid-in capital. 

11. COMMITMENTS: 

   On January 1, 1995, the Company entered into an exclusive license 
agreement with two inventors related to a patent for an insertable element 
which prevents reuse of a plastic syringe. To maintain this license agree- 


                                      F-11
<PAGE>


                         Univec, Inc. and Subsidiary 
          Notes to Consolidated Financial Statements  - (Continued) 

ment in force, the Company is required to pay an annual minimum licensing of 
$10,000. In order for the agreement to remain exclusive, exclusivity payments 
of $25,000 in 1996 and $50,000 annually thereafter, are required to be made. 
In fiscal 1995, $35,000 was charged to operations in connection with this 
agreement. Under the license agreement, royalty payments of 2% of net sales 
of product manufactured and 25% of sublicense royalties received shall be 
made for products which use a modification of the specific insertable element 
as shown and described in the licensed patent rights. Royalty payments of 6% 
of net sales of product manufactured and 40% of sublicense royalties received 
shall be made for products that use the specific insertable element. If the 
manufactured product does not use the non-reusable syringe of the type 
discussed in the patent, no royalties are due, other than the minimum annual 
licensing fees. 

   On February 28, 1996, the Company entered into an exclusive license 
agreement with an inventor related to a patent for a non-reusable hypodermic 
syringe. The Company is required to pay a royalty advance of $10,000, which 
will be applied towards future royalties. In addition, royalty payments of 2% 
of net sales of product manufactured and 10% of sublicense royalties received 
shall be made for product that use a modification of the specific embodiment 
as shown and described in the licensed patent rights. Royalty payments of 6% 
of net sales of product manufactured and 25% of sublicense royalties received 
shall be made for products that use the specific embodiment. If the 
manufactured product does not use the non-reusable syringe of the type 
discussed in the patent, no royalties are due, other than the minimum annual 
licensing fees. 

   On March 25, 1996, the Company entered into an exclusive license agreement 
with an inventor related to a patent for both a self destruct syringe and cap 
assembly. The Company was required to pay $10,000 upon the execution of the 
agreement and an additional two payments of $20,000 on the six-month and 
one-year anniversaries to maintain the agreement. In addition, royalty 
payments of 2% of net sales of product manufactured and 10% of sublicense
royalties received shall be made for product that use a modification of the
specific embodiment as shown and described in the licensed patent rights.
Royalty payments of 7% of net sales of product manufactured and 25% of
sublicense royalties shall be made for products that use the specific
embodiment. If the manufactured product does not use the non-reusable syringe of
the type discussed in the patent, no royalties are due, other than the minimum
annual licensing fees.

   On May 30, 1996, the Company entered into a five-year supply and licensing 
agreement with a manufacturer. The supply agreement requires the manufacturer 
to supply Univec with approximately 50,000,000 syringe components per year. 
In connection with this supply agreement, the manufacturer sold a production 
mold and inserts to Univec for nominal consideration, and subsequently leased 
back the equipment. Under this lease, the lessee is required to make payments 
over three years approximating $1,946,000 to Univec. In July 1996, Univec 
assigned its rights to the last 34 lease payments to an unrelated corporation 
for approximately $1.6 million. Certain stockholders of the Company have agreed
to pay the manufacturer up to $1,000,000 (less $0.14925 for each dollar paid 
by the Company under the agreement) if Univec does not purchase $6,700,000 of 
products from the manufacturer over the first three years of the agreement.

   Simultaneous with the supply agreement, the Company granted the 
manufacturer the option to license the Company's product providing the 
manufacturer the right to manufacture and sell the Company product to certain 
segments of the market for a royalty of 5% of sales of the licensed product. 
Unearned income in connection with these agreements will be recognized in income
upon the sale of the Company's product supplied by the manufacturer.

   The Company leases office space under a three year operating lease from a 
stockholder and officer of the Company. Minimum future rental under this 
lease is $27,600 for fiscal 1996. Rent expense for fiscal 1995 and for the 
nine months ended September 30, 1996 was $27,600 and $20,700 (unaudited), 
respectively. 

12. EQUITY: 

   The following share and per share amount have been restated to reflect the 
reorganization as described in Note 1: 



                                      F-12
<PAGE>

                         Univec, Inc. and Subsidiary 
          Notes to Consolidated Financial Statements  - (Continued) 

   In February 1995, the Company's board of directors and stockholders 
approved the sale of 33,393 shares of the common stock to a stockholder of 
the Company for an aggregate purchase price of $300,000. The individual also 
received the option to purchase 22,236 additional shares of common stock at 
the initial public offering price. The agreement expires on February 22, 
1999. 

   In June 1995, the Company's board of directors and stockholders approved a 
Share Option Agreement between the Company and an individual. The individual 
has the option to purchase 33,436 shares of the common stock at the initial 
public offering price. As of December 31, 1995, no options were exercised. 
The agreement expires on June 30, 1998. 

   In December 1995, a stockholder of the Company gave 10,256 shares of his 
common stock to a creditor of the Company to satisfy a liability for services 
rendered. The Company has recorded a $35,000 contribution to paid-in capital. 

13. SUBSEQUENT EVENTS: 

   During December 1996, the Company raised $1,000,000 through a private
placement of 40 units with each unit consisting of an 8% bridge note in the
principal amount of $25,000 and warrants to purchase 62,500 shares of common
stock. Each warrant entitles the holder to purchase one share of common stock at
an exercise price of $4.50 per share at any time during the period commencing
November 27, 1997 and ending on November 26, 2001. The net proceeds of
approximately $820,000 were used for sales and marketing, capital expenditures,
working capital, and general corporate expenses. These unsecured notes are
payable upon the earlier of November 27, 1997, or the consummation of an initial
public offering or private placement of debt or equity securities resulting in
gross proceeds of at least $5,000,000.

   In connection with the reorganization in October 1996 (see Note 1), the 
Company authorized the issuance of 1,269 shares of Series A 8% Cumulative 
Convertible Preferred Stock to certain officers in exchange for the 
cancellation of notes due to affiliate and payable to stockholders of 
$1,269,000. 

   Series A preferred shares are entitled to receive, prior to the payment of 
cash dividends of the common stock, cumulative dividends at a rate of $80 per 
share per annum and may be redeemed at the option of the Company, at $1,000 
per share (aggregate liquidation preference of $1,269,000). In addition, 
preferred stockholders are entitled to a liquidation preference of $1,000 per 
share, plus accrued and unpaid dividends. Each share of Series A Preferred 
Stock is convertible at the earlier of two years following an IPO or 
September 30, 1999 into 222.22 shares of common stock ($4.50 per share). 
Holders of these shares have no voting rights. 

   During December 1996, the Board of Directors adopted, subject to stockholder 
approval, the 1996 Stock Option Plan (the "Plan"). The Plan is to be 
administered by the Board of Directors or a committee thereof. Pursuant to 
the Plan, options to purchase 4,709,219 shares of common stock may be granted 
to directors, employees (including officers) and consultants to the Company 
(collectively, "Plan participants"). The Plan authorizes the issuance of 
incentive stock options ("ISOs"), as defined in Section 422A of the Internal 
Revenue Code of 1986, as amended, non-qualified stock options ("NQSOs", and 
together with ISOs, "Options"). Consultants and directors who are not also 
employees of the Company are eligible for grants of only NQSOs. The exercise 
price of each ISO may not be less than 100% of the fair market value of the 
common stock at the time of grant, except that in the case of a grant to an 
employee who owns 10% or more of the outstanding stock of the Company or a 
subsidiary or parent of the Company (a "10% Stockholder"), the exercise price 
may not be less than 110% of the fair market value on the date of grant. The 
aggregate fair market value of the shares covered by ISOs granted under the 
Plan that become exercisable by a Plan participant for the first time in any 
calendar year is subject to a $100,000 limitation. The exercise price of each 
NQSO is determined by the Board, or committee thereof, in its discretion; 
provided that NQSO granted a 10% Stockholder be no less than 110% of the fair 
market value on the date of grant. As of December 31, 1996, 20,513 ISO's have 
been granted to an officer of the Company. 



                                      F-13
<PAGE>

                         Univec, Inc. and Subsidiary 
          Notes to Consolidated Financial Statements  - (Continued) 

   The Company has set aside Options to purchase 4,500,000 shares of common 
stock based on the criteria listed below. These Options will become 
exercisable commencing upon the earlier of (x) nine years after the effective 
date of the option, or (y) two years after the effective date of the option, 
provided that in the case of clause (y), the Company shall have obtained (i) 
at least $30,000,000 in gross revenues and after tax net income of at least 
$2,000,000 in the second full fiscal year following the effective date, or 
(ii) at least $45,000,000 in gross revenues and $3,000,000 in after-tax net 
income in the third full fiscal year following the effective date, or (iii) 
at least $60,000,000 in gross revenues and $4,000,000 in after-tax net income 
in the fourth full fiscal year following the effective date. 


                                      F-14
<PAGE>
================================================================================
   No dealer, salesman or any other person has been authorized to give any 
information or to make any representations in connection with the Offering 
other than those contained in the Prospectus and, if given or made, such 
other information and representations must not be relied upon as having been 
authorized by the Company or the Underwriter. Neither the delivery of this 
Prospectus nor any sale made hereunder shall under any circumstances create 
any implication that there had been no change in affairs of the Company since 
the date hereof. This Prospectus does not constitute an offer to sell or the 
solicitation of an offer to buy any securities offered hereby by anyone in 
jurisdictions in which such offer or solicitation is not authorized or in 
which the person making such offer or solicitation is not qualified to do so 
or to anyone to whom it is unlawful to make such offer or solicitation. 

                                    ------ 

                              TABLE OF CONTENTS 

                                                          Page 
                                                         -------- 
Additional Information  .........................            4 
Prospectus Summary  .............................            5 
Risk Factors  ...................................            9 
Use of Proceeds  ................................           20 
Capitalization  .................................           21 
Dilution  .......................................           22 
Dividend Policy  ................................           23 
Selected Consolidated Financial Information  ....           24 
Management's Discussion and Analysis of 
  Financial Condition and Results of 
  Operations ....................................           25 
Business  .......................................           29 
Management  .....................................           38 
Certain Transactions  ...........................           42 
Security Ownership of Certain Beneficial 
  Owners and Management .........................           43 
Description of Securities  ......................           44 
Underwriting  ...................................           50 
Selling Securityholder Offering  ................           52 
Legal Matters  ..................................           52 
Experts  ........................................           52 
Index to Consolidated Financial Statements  .....          F-1 
                                    ------ 
   Until    , 1997 (25 days after the date of this Prospectus), all dealers 
effecting transactions in the registered securities, whether or not 
participating in this distribution, may be required to deliver a Prospectus. 
This is in addition to the obligation of dealers to deliver a Prospectus when 
acting as Underwriters and with respect to their unsold allotments or 
subscriptions. 

================================================================================
<PAGE>

================================================================================



                       1,500,000 SHARES OF COMMON STOCK 
                           AND 2,250,000 REDEEMABLE 
                        COMMON STOCK PURCHASE WARRANTS 



                                 UNIVEC, INC. 



                                    ------ 
                                  PROSPECTUS 
                                    ------ 



                          MAIDSTONE FINANCIAL, INC. 
                                     , 1997 

                                      16 

================================================================================


<PAGE>
The information contained herein is subject to completion or amendment. A 
registration statement relating to these securities has been filed with the 
Securities and Exchange Commission. These securities may not be sold nor may 
offers to buy be accepted prior to the time the registration statement 
becomes effective. This prospectus shall not constitute an offer to sell or 
the solicitation of an offer to buy nor shall there be any sale of these 
securities in any State in which such offer, solicitation or sale would be 
unlawful prior to registration or qualification under the securities laws of 
any such State. 

    PRELIMINARY PROSPECTUS, SUBJECT TO COMPLETION, DATED JANUARY 22, 1997 
                                 UNIVEC, INC. 
                     2,533,436 SHARES OF COMMON STOCK AND 
             2,500,000 REDEEMABLE COMMON STOCK PURCHASE WARRANTS 

   This Prospectus relates to 2,533,436 shares of common stock, par value 
$.001 per share (the "Common Stock") of UNIVEC, Inc. (the "Company"), and 
2,500,000 redeemable common stock purchase warrants (the "Warrants") that may 
be sold by the selling securityholders named herein (the "Selling 
Securityholders"). See "Selling Securityholders". The 2,500,000 Warrants 
offered hereby were issued in connection with a bridge financing completed by 
the Company in December 1996. Of the 2,533,436 shares of Common Stock offered 
hereby, 2,500,000 shares are issuable upon exercise of the Warrants and 
33,436 shares are issuable upon exercise of options. 

   Each Warrant entitles the registered holder thereof to purchase one share 
of Common Stock at an exercise price of $4.50 per share, subject to 
adjustment in certain events, at any time during the period commencing 
__________, 1999 [two years after the date upon which the Registration 
Statement of which this Prospectus forms a part is declared effective by the 
Securities Exchange Commission (the "Effective Date")] and expiring on 
____________, 2002 [the fifth anniversary of the Effective Date]. The 
Warrants are subject to redemption by the Company at $.05 per Warrant at any 
time commencing _______________, 1999 [two years after the Effective Date], 
with the prior written consent of Maidstone Financial, Inc. ("Maidstone" or 
the "Underwriter"), on not less than 30 days prior written notice to the 
holders of the Warrants, provided the closing bid price of the Common Stock 
has been at least $8.00 for 20 consecutive trading days ending on the third 
day prior to the date on which the Company gives notice of redemption. The 
Warrants will be exercisable until the close of business on the day 
immediately preceding the date fixed for redemption. The Company has applied 
for quotation of the Common Stock and the Warrants on The Nasdaq SmallCap 
Market under the trading symbols "UNVC" and "UNVCW", respectively. See 
"Description of Securities -- Warrants." 

   The Selling Securityholders may sell Warrants and shares of Common Stock 
from time to time directly to purchasers, or through broker-dealers who may 
receive compensation in the form of commissions or discounts from the Selling 
Securityholders or purchasers. Sales of Warrants and shares of Common Stock 
may be effected by broker-dealers in ordinary brokerage transactions or block 
transactions on The Nasdaq SmallCap Market, through sales to one or more 
dealers who may resell as principals, in privately negotiated transactions or 
otherwise, at the market price prevailing at the time of sale, a price 
related to such prevailing market price or at a negotiated price. Usual and 
customary or specifically negotiated brokerage fees may be paid by the 
Selling Securityholders in connection therewith. To the Company's knowledge, 
none of the Selling Securityholders has entered into any underwriting 
arrangements for the sale of such securities. The Company has offered, by 
separate Prospectus dated the date hereof, 1,500,000 shares of Common Stock 
and 2,225,000 Common Stock Purchase Warrants (having terms identical to the 
Warrants offered hereby) through Maidstone (the "Offering" or the "IPO"). 
Each of the Selling Securityholders has agreed not to offer or sell the 
Warrants or shares of Common Stock offered hereby (except under certain 
circumstances in connection with a third party tender offer for the Common 
Stock) until 24 months after the Effective Date, without the prior written 
consent of the Underwriter, which may be granted or withheld in the sole and 
absolute discretion of the Underwriter. The Underwriter has agreed that it 
will not consent to the sale of any of the securities offered hereby prior to 
the expiration of the 45-day period commencing on the date of the closing of 
the IPO during which the Underwriter may exercise an option to purchase from 
the Company up to an additional 15% of the shares of Common Stock and/or 
Common Stock Purchase Warrants offered in the IPO to cover over-allotments, 
if any (the "Over-Allotment Option"), or such earlier date upon which the 
Over-Allotment Option is fully exercised. 

   The Company will not receive any proceeds from the sale of the Warrants or 
shares of Common Stock by the Selling Securityholders, but will receive the 
exercise price of Warrants and options exercised. See "Use of Proceeds." 

   THE SECURITIES OFFERED HEREBY ARE SPECULATIVE AND INVOLVE A HIGH DEGREE OF 
RISK. ONLY INVESTORS WHO CAN BEAR THE RISK OF LOSS OF THEIR ENTIRE INVESTMENT 
SHOULD INVEST. FOR A DESCRIPTION OF CERTAIN RISKS REGARDING AN INVESTMENT IN 
THE COMPANY, SEE "RISK FACTORS" COMMENCING ON PAGE 9. 
                                    ------ 
   THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES 
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE 
COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR 
ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL 
OFFENSE. 
                                    ------ 
                 The date of this Prospectus is      , 1997. 
<PAGE>
   The Selling Securityholders may be deemed to be "underwriters" within the 
meaning of the Securities Act of 1933 (the "Securities Act") and any profits 
realized by them may be deemed to be underwriting commissions. Any 
broker-dealers that participate in the distribution of the Warrants or shares 
of Common Stock also may be deemed to be "underwriters", as defined in the 
Securities Act, and any commissions or discounts paid to them, or any profits 
realized by them upon the resale of any securities purchased by them as 
principals, may be deemed to be underwriting commissions or discounts under 
the Securities Act. The sale of the Warrants and shares of Common Stock by 
the Selling Securityholders is subject to the prospectus delivery and other 
requirements of the Securities Act. 

   The Warrants and shares of Common Stock offered hereby have been 
registered pursuant to registration rights granted to the Selling 
Securityholders. All costs, expenses and fees in connection with the 
registration of the Warrants and shares of Common Stock offered by the 
Selling Securityholders will be borne by the Company. The Selling 
Securityholders are responsible for the payment of brokerage commissions and 
discounts incurred in connection with the sale of their Warrants and shares 
of Common Stock. The Company has agreed to indemnify the Selling 
Securityholders against certain liabilities, including liabilities under the 
Securities Act. 


<PAGE>


ing clip and other syringe designs to established medical device 
manufacturers. To stimulate demand for its safety syringes, the Company plans 
to initiate promotional and educational campaigns directed at (i) public 
health officers and other government officials responsible for public health 
policies, (ii) doctors and administrators of healthcare facilities 
responsible for treatment of HIV-AIDS patients, and (iii) liability insurance 
companies. The Company plans to enter into arrangements with independent 
sales agents and distributors in targeted markets and to hire a marketing 
director following the completion of this Offering. 


The Company is a Delaware corporation, incorporated on October 7, 1996, and 
the successor by merger to UNIVEC, Inc., a New York corporation, incorporated 
on August 18, 1992. The executive officers of the Company are located at 999 
Franklin Avenue, Garden City, New York 11530 (telephone number (516) 
294-1000). 

                                 THE OFFERING 


Securities Offered.............  2,533,436 shares of common stock, $0.001 par 
                                 value per share (the "Common Stock"), and 
                                 2,500,000 redeemable common stock purchase 
                                 warrants (the "Warrants"). Each Warrant 
                                 entitles the holder thereof to purchase one 
                                 share of Common Stock at an exercise price 
                                 of $4.50 per share, subject to adjustment in 
                                 certain events. See "Description of 
                                 Securities" and "Plan of Distribution." 

Terms of Warrants: 
  Exercise price...............  $4.50 per share, subject to adjustment in 
                                 certain events. See "Description of 
                                 Securities -- Warrants." 

 Exercise period...............  Any time during the period commencing 
                                 ------, 1999 [two years after the Effective 
                                 Date] and ending ------, 2002 [the fifth 
                                 anniversary of the Effective Date]. 


 Redemption....................  Redeemable by the Company, with the prior 
                                 written consent of the Underwriter, at a 
                                 price of $.05 per Warrant upon not less than 
                                 30 days prior written notice to the holders 
                                 of the Warrants at any time commencing 
                                 ------, 1999 [two years after the Effective 
                                 Date], provided the closing bid price of the 
                                 Common Stock has been at least $8.00 for 20 
                                 consecutive trading days ending on the third 
                                 day prior to the date upon which the Company 
                                 gives notice of redemption. See "Description 
                                 of Securities -- Warrants." 

Common Stock Outstanding.......  2,619,907 

Warrants Outstanding...........  4,750,000 

Risk Factors...................  The securities offered hereby involve a high 
                                 degree of risk . Only investors who can bear 
                                 the risk of their entire investment should 
                                 invest. See "Risk Factors." 

Proposed Nasdaq SmallCap 
  Market Symbols...............  Common Stock -- UNVC; Warrants -- UNVCW 

- ------ 

(1) Does not include (i) 55,672 shares reserved for issuance upon exercise of 
    outstanding options, at an exercise price of $3.50, expiring at various 
    dates from February 22, 1999 through June 30, 1999, (ii) 4,750,000 shares 
    issuable upon exercise of the Warrants and 2,250,000 warrants to be 
    issued in the IPO having the same terms as the Warrants, (iii) 35,715 
    shares reserved for issuance upon conversion of the Company's 12 1/2% 
    demand promissory note in the principal amount of $125,000 following the 
    closing 

                                      6 

<PAGE>


    of the IPO (the "Closing"), (iv) 4,688,706 shares reserved for issuance 
    upon exercise of options which may be granted in the future pursuant to 
    the Company's stock option plan, and (vi) 282,000 shares reserved for 
    issuance upon conversion of the Company's Series A Cumulative Convertible 
    Preferred Stock (the "Series A Preferred Stock"). Includes (i) 33,250 
    shares of Common Stock to be issued to a director of the Company at the 
    Closing in exchange for the cancellation of amounts due to him ($116,373 
    as of September 30, 1996), and (ii) 4,370 shares to be issued to an 
    officer of the Company at Closing upon exercise of options. See "Certain 
    Transactions," "Management -- Stock Option Plan" and "Description of 
    Securities -- Series A Preferred Stock." 


                                      7 
<PAGE>

                           SELLING SECURITYHOLDERS 

   The table below sets forth, with respect to each Selling Securityholder, 
based upon information available to the Company as of the date hereof, the 
number of shares of Common Stock beneficially owned, the number of Warrants 
and/or shares of Common Stock to be sold, and the number of outstanding 
shares of Common Stock beneficially owned after the sale of the Warrants 
and/or shares of Common Stock offered hereby. None of the Selling 
Securityholders has been an officer, director or affiliate of the Company 
during the preceding three years. Except as stated below, each of the Selling 
Stockholders acquired the Warrants offered hereby in connection with a bridge 
financing of Units completed by the Company in December 1996. Each Unit 
consisted of the Company's 8% Bridge Notes in the principal amount of $25,000 
and Bridge Warrants to purchase 62,500 shares of Common Stock. On the 
Effective Date, the Bridge Warrants will convert automatically into the 
Warrants. The Bridge Notes will be paid out of the net proceeds of the IPO. 
Although there can be no assurance that the Selling Securityholders will 
sell any or all of the Warrants and/or shares of Common Stock offered hereby, 
the following table assumes that each of the Selling Securityholders will 
sell all Warrants and/or shares of Common Stock offered by this Selling 
Securityholder Prospectus. 


<TABLE>
<CAPTION>
                                                                                   
                                                                                   Warrants and/or 
                                                               Warrants and/or        Shares of    
                                              Amount and       Shares of Common        Common      
                                           Nature Beneficial      Stock to Be        Stock Owned   
                  Name                       Ownership (1)          Sold(2)         After Offering 
 ---------------------------------------   -----------------   -----------------    --------------- 
<S>                                        <C>                 <C>                  <C>
Norben Import Corp./Profit Sharing Plan              0              750,000               0 
Leonard N. Tarr  .......................        33,436(3)           656,250 Wts.(4)       0 
                                                                    689,686 Shs.(5) 
Charles J. Divon, Jr.  .................             0              500,000(6)            0 
Wilfred Bonilla  .......................             0              250,000(6)            0 
Martin Rosenman  .......................             0              125,000               0 
David A. Clanton  ......................             0               62,500 
Robert A. Dubofsky  ....................             0               62,500               0 
Richard D. Siegel  .....................             0               31,250               0 
WBM Associates  ........................             0               31,250               0 
Richard Gershman .......................             0               31,250(6)            0
</TABLE>

- ------ 
(1) Unless otherwise indicated, each person has sole investment and voting 
    power with respect to the shares indicated, subject to community property 
    laws, where applicable. For purposes of computing the percentage of 
    outstanding shares held by each Selling Securityholder, any security 
    which such person has the right to acquire within 60 days after the 
    Effective Date is deemed to be outstanding for the purpose of computing 
    the percentage ownership for such person, but is not deemed to be 
    outstanding for the purpose of computing the percentage ownership of any 
    other person. Accordingly, shares issuable upon exercise of the Warrants 
    have not been included since the Warrants are not exercisable until two 
    years after the Effective Date. 

(2) Except as otherwise indicated, represents the number of Warrants and 
    shares of Common Stock issuable upon exercise thereof owned by the 
    Selling Stockholder. 

(3) Represents shares issuable upon exercise of presently exercisable options 
    granted to Mr. Tarr, who through an affiliated entity obtained debt 
    financing for the Company in 1995. 

(4) Includes Warrants to purchase 531,250 shares of Common Stock registered in
    the name of the Leonard N. Tarr P.C. Trust No. 1, of which Mr. Tarr is the 
    trustee and beneficiary. 

(5) Includes 656,250 shares issuable upon exercise of Warrants and 33,436 
    shares issuable upon exercise of options. See footnotes (3) and (4) 
    above. 

(6) These Warrants were acquired in January 1996 from an investor in the Bridge
    Financing. 
<PAGE>

                             PLAN OF DISTRIBUTION 

   Selling Securityholders may sell the Warrants and shares of Common Stock 
offered hereby from time to time directly to purchasers, or through 
broker-dealers who may receive compensation in the form of commissions or 
discounts from the Selling Securityholders or purchasers. Sales of Warrants 
and shares of Common Stock may be effected by broker-dealers in ordinary 
brokerage transactions or block transactions on The Nasdaq SmallCap Market, 
through sales to one or more dealers who may resell as principals, in 
privately negotiated transactions or otherwise, at the market price 
prevailing at the time of sale, a price related to such prevailing market 
price or at a negotiated price. Usual and customary or specifically 
negotiated brokerage fees may be paid by the Selling Securityholders in 
connection therewith. To the Company's knowledge, none of the Selling 
Securityholders have entered into any underwriting arrangements for the sale 
of such securities. Each of the Selling Securityholders has agreed not offer 
or sell the Warrants or shares of Common Stock offered hereby (except under 
certain circumstances in connection with a third party tender offer for the 
Common Stock) until 24 months after the Effective Date, without the prior 
written consent of the Underwriter, which may be granted or withheld in the 
sole and absolute discretion of the Underwriter. The Underwriter has agreed 
that it will not consent to the sale of any of the securities offered hereby 
prior to the expiration of the 45-day period commencing on the date of the 
closing of the IPO during which the Underwriter may exercise the 
Over-Allotment Option, or such earlier date upon which the Over-Allotment 
Option is fully exercised. 

   The Selling Securityholders may be deemed to be "underwriters" within the 
meaning of the Securities Act and any profits realized by them may be deemed 
to be underwriting commissions. Any broker-dealers that participate in the 
distribution of the Warrants or shares of Common Stock also may be deemed to 
be "underwriters", as defined in the Securities Act, and any commissions or 
discounts paid to them, or any profits realized by them upon the resale of 
any securities purchased by them as principals, may be deemed to be 
underwriting commissions or discounts under the Securities Act. The sale of 
the Warrants and shares of Common Stock by the Selling Securityholders is 
subject to the prospectus delivery and other requirements of the Securities 
Act. 

   The Warrants and shares of Common Stock offered hereby have been 
registered pursuant to registration rights granted to the Selling 
Securityholders. All costs, expenses and fees in connection with the 
registration of the Warrants and shares of Common Stock offered by the 
Selling Securityholders will be borne by the Company. The Selling 
Securityholders are responsible for the payment of brokerage commissions and 
discounts incurred in connection with the sale of their Warrants and shares 
of Common Stock. The Company has agreed to indemnify the Selling 
Securityholders against certain liabilities, including liabilities under the 
Securities Act. 

   Under the Exchange Act and the regulations thereunder, any person engaged 
in a distribution of the Warrants and Common Stock offered by this Selling 
Securityholder Prospectus may not simultaneously engage in market-making 
activities with respect to the Warrants or Common Stock during the applicable 
"cooling off" period prescribed by exemption (xi) to Rule 10b-6 prior to the 
commencement of such distribution. In addition, and without limiting the 
foregoing, the Selling Securityholders will be subject to applicable 
provisions of the Exchange Act and the rules and regulations thereunder 
including, without limitation, Rules 10b-6 and 10b-7, which provisions may 
limit the timing of purchases and sales of Warrants and Common Stock by the 
Selling Securityholders. 

   To the extent required, the Company will use its best efforts to file, 
during any period in which offers or sales of Warrants and/or shares of 
Common Stock are being made by or on behalf of the Selling Securityholders, 
one or more amendments or supplements to this Selling Securityholder 
Prospectus which describe any material information with respect to the plan 
of distribution not previously disclosed herein, including the name or names 
of any underwriters, broker-dealers or agents, if any, the purchase price 
paid by any underwriter for Warrants and/or shares of Common Stock purchased 
from a Selling Securityholder, and any discounts, commissions or concessions 
allowed or reallowed or paid to broker-dealers. 
<PAGE>

                                   PART II 
                    INFORMATION NOT REQUIRED IN PROSPECTUS 

ITEM 24. INDEMNIFICATION OF DIRECTORS AND OFFICERS 

   Article 7 of the Registrant's Certificate of Incorporation, in accordance 
with Section 145 of the DGCL, provides that directors and officers may be 
indemnified against expenses (including attorneys' fees), judgments, fines 
and amounts paid in settlement in connection with specified actions, suits or 
proceedings, whether civil, criminal, administrative or investigative (other 
than an action by or in the right of the corporation -- a "derivative 
action") if they acted in good faith and in a manner they reasonably believed 
to be in or not opposed to the best interests of the corporation, and, with 
respect to any criminal action or proceeding, had no reasonable cause to 
believe their conduct was unlawful. A similar standard of care is applicable 
in the case of derivative actions, except that indemnification only extends 
to expenses (including attorneys' fees) incurred in connection with the 
defense or settlement of such an action. Moreover, the DGCL requires court 
approval before there can be any indemnification where the person seeking 
indemnification has been found liable to the corporation. 

   Article 7 of the Registrant's Certificate of Incorporation further 
provides that directors and officers are entitled to be paid by the 
Registrant the expenses incurred in defending the proceedings specified above 
in advance of their final disposition, provided that such payment will only 
be made upon delivery to the Registrant by the indemnified party of an 
undertaking to repay all amounts so advanced if it is ultimately determined 
that the person receiving such payments is not entitled to be indemnified. 

   Article 7 of the Registrant's Certificate of Incorporation provides that a 
person indemnified under Article 7 of the Certificate of Incorporation may 
contest any determination that a director, officer, employee or agent has not 
met the applicable standard of conduct set forth in the Certificate of 
Incorporation by petitioning a court of competent jurisdiction. 

   Article 7 of the Registrant's Certificate of Incorporation provides that 
the right to indemnification and the payment of expenses incurred in 
defending a proceeding in advance of its final disposition conferred in the 
Article will not be exclusive of any other right which any person may have or 
acquire under the Certificate of Incorporation, or any statute or agreement, 
or otherwise. 

   Finally, Article 7 of the Registrant's Certificate of Incorporation 
provides that the Registrant may maintain insurance, at its expense, to 
reimburse itself and directors and officers of the Registrant and of its 
direct and indirect subsidiaries against any expense, liability or loss, 
whether or not the Registrant would have the power to indemnify such persons 
against such expense, liability or loss under the provisions of Article 7 of 
the Certificate of Incorporation. The Registrant has applied for such 
insurance, and expects to have such insurance in effect on the date this 
Registration Statement is declared effective by the Commission. 

   Article 8 of the Registrant's Certificate of Incorporation eliminates the 
personal liability of the Registrant's directors to the Registrant or its 
stockholders for monetary damages for breach of their fiduciary duties as a 
director to the fullest extent provided by Delaware law. Section 102(b)(7) of 
the DGCL provides for the elimination off such personal liability, except for 
liability (i) for any breach of the director's duty of loyalty to the 
Registrant or its stockholders, (ii) for acts or omissions not in good faith 
or which involve intentional misconduct or a knowing violation of law, (iii) 
under Section 174 of the DGCL or (iv) for any transaction from which the 
director derived any improper personal benefit. 

   Reference is made to Section 1.1 of the Underwriting Agreement between the 
Registrant and Maidstone Financial, Inc. (the "Underwriter"), filed as 
Exhibit 1.1 to this Registration Statement, which provides for 
indemnification by the Underwriter of the Registrant and the directors and 
officers of the Registrant under certain limited circumstances. 

   Insofar as indemnification for liabilities arising under the Securities 
Act may be permitted to directors, officers or persons controlling the 
Registrant pursuant to the foregoing provisions, the Registrant has been 
informed that in the opinion of the Commission such indemnification is 
against public policy as expressed in the Securities Act and is therefore 
unenforceable. 


                                      II-1
<PAGE>

ITEM 25. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION 

   The following table sets forth the expenses (other than underwriting 
discounts and commissions) which will be paid by the Registrant in connection 
with the issuance and distribution of the securities being registered hereby. 
With the exception of the SEC registration fee and the NASD filing fee, all 
amounts indicated are estimates. 

<TABLE>
<CAPTION>
<S>                                                               <C>
SEC Registration fee ........................................     $  9,462.58 
NASD filing fee  ...........................................         3,122.65 
NASDAQ filing fee  .........................................        10,000.00 
Underwriter's non-accountable expense allowance  ...........       164,250.00 
Underwriter's advisory fee  ................................        96,000.00 
Directors' and Officers' liability insurance  ..............        80,000.00 
Printing expenses (other than stock certificates)  .........        60,000.00 
Printing and engraving of stock and warrant certificates  ..         4,000.00 
Legal fees and expenses (other than blue sky)  .............       100,000.00 
Accounting fees and expenses  ..............................        75,000.00 
Blue sky fees and expenses (including legal and filing 
  fees) ....................................................        35,000.00 
Transfer Agent and Warrant Agent fees and expenses  ........         5,000.00 
Miscellaneous  .............................................         1,414.77 
                                                                  ------------ 
 Total  ....................................................      $643,250.00 
                                                                  ============ 
</TABLE>

ITEM 26. RECENT SALE OF UNREGISTERED SECURITIES 

   During the past three years, the Registrant has sold securities to a 
limited number of persons, as described below. Except as indicated, there 
were no underwriters involved in the transactions and there were no 
underwriting discounts or commissions paid in connection therewith. The 
purchasers of securities in each such transaction represented their intention 
to acquire the securities for investment only and not with a view to or for 
sale in connection with any distribution thereof and appropriate legends were 
affixed to the certificates for the securities issued in such transactions. 
All purchasers of securities in each such transaction had adequate access to 
information about the Registrant, and in the case of transactions exempt from 
registration under Section 4(2) of the Securities Act, were sophisticated 
investors. 

   1. Between February 28, 1995 and June 30, 1995, the Registrant issued and 
sold to John Frank, a director of the Registrant, an aggregate of 33,360 
shares of Common Stock for a purchase price of $300,000 ($8.93 per share). In 
connection therewith, the Registrant granted Mr. Frank an option to purchase 
an additional 22,236 shares of Common Stock at an exercise price of $77,826 
($3.50 per share). The issuance of these securities was exempt from 
registration under Sections 4(2) and 4(6) of the Securities Act. 

   2. On June 7, 1995, the Registrant granted Leonard N. Tarr options to 
purchase 33,436 shares of Common Stock at an exercise price of $116,529 
($3.50 per share) in consideration for services rendered. The issuance of 
these securities was exempt from registration under Sections 4(2) and 4(6) of 
the Securities Act. 

   3. On January 3, 1996, the Registrant issued and sold to Gary Sazer, a 
consultant to the Registrant, 10,257 shares of Common Stock in consideration 
for services rendered valued at $35,000 ($3.41 per share). The issuance of 
these securities was exempt from registration under Sections 4(2) and 4(6) of 
the Securities Act. 

   4. On December 14, 1996, the Registrant granted options to purchase 20,513 
shares of Common Stock, at an exercise price of $3.50 per share, to David 
Chabut, the chief financial officer of the Registrant. The issuance of these 
securities was exempt from registration under Sections 4(2) and 4(6) of the 
Securities Act and Rule 505 of Regulation D promulgated under Section 4(2) of 
the Securities Act ("Regulation D"). 

   5. On December 14, 1996, the Registrant issued to Howard Klein, a 
consultant to the Company, 7,143 shares of Common Stock in exchange for the 
cancellation of $25,000 of indebtedness payable to him for consulting 
services. The issuance of these securities was except from registration under 
Section 4(2) of the Securities Act. 


                                      II-2
<PAGE>

   6. On December 31, 1996, the Registrant issued and sold to David Chabut, 
the chief financial officer of the Registrant, 16,143 shares of Common Stock 
for a purchase price of $56,500 ($3.50 per share). The issuance of these 
securities was exempt from registration under Sections 4(2) and 4(6) of the 
Securities Act and Rule 505 of Regulation D. 

   7. On December 31, 1996, the Registrant issued an aggregate of 1,269 
shares of Series A Preferred to three officers of the Registrant, including 
Joel Schoenfeld, Chairman of the Board and Chief Executive Officer of the 
Registrant, and two companies affiliated with Mr. Schoenfeld, in exchange for 
the cancellation of $1,269,000 payable to them. One share of Series A 
Preferred Stock was issued in exchange for each $1,000 payable to such 
person. Shares of Series A Preferred were issued to Joel Schoenfeld (395 
shares); Flora Schoenfeld, the Treasurer and Secretary of the Registrant (47 
shares); Dr. Alan H. Gold, President of the Registrant (114 shares); and to 
two corporations affiliated with Mr. Schoenfeld -- JS Associates (341 shares) 
and J&B Schoenfeld (372 shares). The issuance of these securities was exempt 
from registration under Sections 3(a)(9) and 4(6) of the Securities Act, as 
well as Rule 505 of Regulation D. 

   8. From November 27, 1996 until December 30, 1996, Registrant issued and 
sold an aggregate of 40 units (the "Units"), each Unit consisting of the 
Company's 8% Bridge Note in the principal amount of $25,000 and Warrants to 
purchase 62,500 shares of Common Stock (the "Bridge Warrants"), for a 
purchase price of $25,000 per Unit, or an aggregate of $1,000,000 (the 
"Bridge Financing"). The 8% Bridge Notes mature upon the earlier of November 
27, 1997 and the consummation of an initial public offering or private 
placement of the Registrant's debt and/or equity securities resulting in 
gross proceeds to the Registrant of at least $5,000,000. The 8% Bridge Notes 
will be repaid with a portion of the net proceeds of this offering. In 
connection the Bridge Financing, the Registrant paid Maidstone Financial, 
Inc., as placement agent, selling commissions of $100,000, and a 
non-accountable expense allowance of $30,000. Each of the investors in the 
Bridge Financing represented to the Registrant that it was an "accredited 
investor" (as defined in Rule 501(a) of Regulation D). The names of those 
persons who purchased Units in the Bridge Financing (together with the total 
number of Units purchased and the total purchase price paid by each 
purchaser) are as follows: Norben Import Corp./Profit Sharing Plan (12 Units 
- -- $300,000); Leonard N. Tarr and the Leonard N. Tarr, P.C. Trust No. 1 (a 
total of 11 Units -- $275,000); Alan Adler (4 Units -- $100,000); Bruce Adler 
(4 Units -- $100,000); Phyllis Kramer (4 Units -- $100,000); Martin Rosenman 
(2 Units -- $50,000); David A. Clanton (1 Unit -- $25,000); Robert L. 
Dubofsky (1 Unit -- $25,000); Richard D. Siegel ( 1/2 Unit -- $12,500); and 
WBM Associates ( 1/2 Unit -- $12,500). The issuance of such securities was 
exempt from registration under the Securities Act pursuant to Sections 4(2) 
and 4(6) thereof and Rule 505 of Regulation D. 

ITEM 27. EXHIBITS 

<TABLE>
<CAPTION>
   <S>       <C>
    1.1      Form of Underwriting Agreement. 
    1.2      Form of Advisory and Investment Banking Agreement between the Registrant and Maidstone Financial, Inc.
    3.1      Certificate of Incorporation of the Registrant. 
    3.2      By-laws of the Registrant. 
    4.1      Agreement and Plan of Merger dated as of October 7, 1996 between the Registrant 
              and UNIVEC, Inc., a New York corporation. 
    4.2      Form of Underwriter's Warrants. 
    4.3      Form of Warrant Agreement. 
    4.4*     Specimen Common Stock Certificate. 
    4.5      Specimen Warrant Certificate (included as Exhibit A to Exhibit 4.3 herein). 
    4.6      Form of Bridge Note. 
    4.7      Form of Bridge Warrant. 
    4.8      Registration Rights Agreement among the Registrant and the holders of the Bridge 
               Warrants. 
    4.9*     Form of Lock-up Agreement. 
    5.1*     Opinion of Snow Becker Krauss P.C., counsel to the Company. 
   10.1**    O.E.M. Supply Agreement dated May 30, 1996, between the Registrant and Sherwood 
              Medical Company ("Sherwood"). 
   10.2      Guaranty of Certain Stockholders of the Registrant in favor of Sherwood. 
   10.3      Equipment Lease dated May 30, 1996 between the Registrant and Sherwood. 


                                      II-3
<PAGE>

    10.4     Purchase Agreement dated as of June 27, 1996 between the Registrant and Paramount 
              Financial Corporation. 
    10.5**   Manufacturing Agreement effective December 4, 1996, between the Registrant and 
              Harmac Medical Products, Inc. 
    10.6     Employment Agreement dated as of October 15, 1996, between the Registrant and 
              David Chabut. 
    10.7     Employment Agreement dated as of October 1, 1996, between the Registrant and 
              David Shonfeld. 
    10.8     Share Option Agreement dated June 5, 1995, between the Registrant and Leonard N. 
              Tarr. 
    10.9     1996 Stock Option Plan of the Registrant. 
    21.1     List of Subsidiaries. 
    23.1*    Consent of Snow Becker Krauss P.C. (to be included in Exhibit 5.1 to this Registration 
              Statement). 
    23.2     Consent of Coopers & Lybrand LLP, independent certified public accountants, is included in 
              Part II of this Registration Statement. 
    24.1     Power of Attorney (included on the signature page of this Registration Statement). 
    27.1*    Financial Data Schedule. 
</TABLE>

- ------ 
*    To be filed by amendment.
**   Confidential treatment has been requested for certain portions of this
     document.

ITEM 28. UNDERTAKINGS 

(a) Rule 415 Offering 
    The undersigned small business issuer hereby undertakes that it will: 

       (1) File, during any period in which it offers or sells securities, a 
           post-effective amendment to this registration statement to: 

           (i) Include any prospectus required by section 10(a)(3) of the 
               Securities Act. 

          (ii) Reflect in the prospectus any facts or events which, 
               individually or together, represent a fundamental change in 
               the information set forth in the registrant statement. 
               Notwithstanding the foregoing, any increase or decrease in 
               volume of securities offered (if the total dollar value of 
               securities offered would not exceed that which was registered) 
               and any deviation from the low or high end of the estimated 
               maximum offering range may be reflected in the form of 
               prospectus filed with the Commission pursuant to Rule 424(b) 
               if, in the aggregate, the changes in volume and price 
               represent no more than a 20% change in the maximum aggregate 
               offering price set forth in the "Calculation of Registration 
               Fee" table in the effective registration statement. 
         (iii) Include any additional or changed material information on the 
               plan of distribution. 

       (2) For determining any liability under the Securities Act, treat each 
           post-effective amendment as a new registration statement relating 
           to the securities offered, and the offering of such securities at 
           that time to be the initial bona fide offering thereof. 

       (3) File a post-effective amendment to remove from registration any of 
           the securities that remain unsold at the end of the offering. 

(d) Equity Offerings by Non-Reporting Small Business Issuers 

    The undersigned small business issuer hereby undertakes that it will 
    provide the underwriters at the closing specified in the Underwriting 
    Agreement certificates in such denominations and registered in such names 
    as required by the Underwriters to permit prompt delivery to each 
    purchaser. 



                                      II-4
<PAGE>


(e) Request for Acceleration of Effective Date 
    Insofar as indemnification for liabilities arising under the Securities 
    Act may be permitted to directors, officers and controlling persons of 
    the small business issuer pursuant to the foregoing provisions, or 
    otherwise, the small business issuer has been advised that in the opinion 
    of the Commission such indemnification is against public policy as 
    expressed in the Securities Act and is, therefore, unenforceable. In the 
    event that a claim for indemnification against such liabilities (other 
    than the payment by the small business issuer of the expenses incurred or 
    paid by a director, officer, or controlling person of the small business 
    issuer in the successful defense of any action, suit or proceeding) is 
    asserted by such director, officer or controlling person in connection 
    with the securities being registered, the small business issuer will, 
    unless in the opinion of its counsel the matter has been settled by 
    controlling precedent, submit to a court of appropriate jurisdiction the 
    question whether such indemnification by it is against public policy as 
    expressed in the Securities Act and will be governed by the final 
    adjudication of such issue. 

(f) Rule 430A Offering 

       (1) For determining any liability under the Securities Act, treat the 
           information omitted from the form of prospectus filed as part of 
           this registration statement in reliance upon Rule 430A and 
           contained in a form of prospectus filed by the small business 
           issuer under Rule 424(b)(1) or (4) or 497(h) under the Securities 
           Act as part of this registration statement as of the time the 
           Commission declared it effective. 
       (2) For determining any liability under the Securities Act, treat each 
           post-effect amendment that contains a form of prospectus as a new 
           registration statement for the securities offered in the 
           registration statement, and that offering of the securities at that 
           time as the initial bona fide offering of those securities. 


                                      II-5
<PAGE>

                                  SIGNATURES 

   Pursuant to the requirements of the Securities Act of 1933, the Registrant 
certifies that it has reasonable grounds to believe that it meets all of the 
requirement for filing on Form SB-2 and has duly caused this Registration 
Statement to be signed on its behalf by the undersigned, thereunto duly 
authorized, in the City of Garden City, in the State of New York, on January 
22, 1997 

  UNIVEC, INC. 
By:  /s/ Joel Schoenfeld                    By: /s/ David Chabut
       ----------------------------               ----------------------------- 
     Joel Schoenfeld                            David Chabut 
     Chairman of the Board and                  Chief Financial Officer 
     Chief Executive Officer                     (Principal Financial and 
     (Principal Executive Officer)               Accounting Officer) 

   KNOW ALL MEN BY THESE PRESENTS, that each individual whose signature 
appears below constitutes and appoints Joel Schoenfeld and David Chabut, 
acting singly, his true and lawful attorney-in-fact and agent, with full 
power of substitution and resubstitution, for him and in his name, place and 
stead, in any and all capacitates, to sign any and all amendments (including 
post-effective amendments) to this Registration Statement, and any 
Registration Statement filed pursuant to Rule 462(b) promulgated by the 
Commission under the Securities Act of 1933, and to file the same and all 
exhibits thereto, and all documents in connection therewith, with the 
Commission, granting said attorney-in-fact and agent, full power and 
authority to do and perform each and every act and thing requisite and 
necessary to be done in about the premises, as full to all intents and 
purposes as he might or could do in person, hereby ratifying and confirming 
all that said attorney-in-fact and agent, or his substitute or substitutes, 
may lawfully do or cause to be done by virtue hereof. 

   In accordance with the requirements of the Securities Act of 1933, this 
registration statement has been signed on January 22, 1997 by the following 
persons in the capacities indicated. 


<TABLE>
<CAPTION>
<S>                              <C>
 /s/ Joel Schoenfeld             Chairman of the Board, Chief 
- -----------------------          Executive Officer and a Director 
   Joel Schoenfeld               (Principal Executive Officer) 

/s/ Alan H. Gold                 Director                                      
- -----------------------                                                        
   Alan H. Gold                                                                
                                   
/s/ David Chabut                 Chief Financial Officer                       
- -----------------------          (Principal Financial and Accounting Officer)  
   David Chabut                                                                
                                                                               
/s/ David Shonfeld               Director                                                   
- -----------------------                                                        
   David Shonfeld                                                              
                                                                               
/s/ John Frank                   Director                                      
- -----------------------                                                        
   John Frank                                                                  
                                                                               
/s/ Richard Lerner               Director                                      
- -----------------------                                         
   Richard Lerner                
</TABLE>


                                      II-6

<PAGE>
                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
Exhibit No.  Description                                                                              Page
- -----------  -----------                                                                              ----
   <S>       <C>                                                                                      <C>
    1.1     Form of Underwriting Agreement. 
    1.2     Form of Advisory and Investment Banking Agreement between the Registrant and Maidstone
              Financial, Inc. 
    3.1     Certificate of Incorporation of the Registrant. 
    3.2     By-laws of the Registrant. 
    4.1     Agreement and Plan of Merger dated as of October 7, 1996 between the Registrant 
              and UNIVEC, Inc., a New York corporation. 
    4.2     Form of Underwriter's Warrants. 
    4.3     Form of Warrant Agreement. 
    4.4*    Specimen Common Stock Certificate. 
    4.5     Specimen Warrant Certificate (included as Exhibit A to Exhibit 4.3 herein). 
    4.6     Form of Bridge Note. 
    4.7     Form of Bridge Warrant. 
    4.8     Registration Rights Agreement among the Registrant and the holders of the Bridge 
               Warrants. 
    4.9*    Form of Lock-up Agreement. 
    5.1*    Opinion of Snow Becker Krauss P.C., counsel to the Company. 
   10.1**   O.E.M. Supply Agreement dated May 30, 1996, between the Registrant and Sherwood 
              Medical Company ("Sherwood"). 
   10.2     Guaranty of Certain Stockholders of the Registrant in favor of Sherwood. 
   10.3     Equipment Lease dated May 30, 1996 between the Registrant and Sherwood. 
   10.4     Purchase Agreement dated as of June 27, 1996 between the Registrant and Paramount 
              Financial Corporation. 
   10.5**   Manufacturing Agreement effective December 4, 1996, between the Registrant and 
              Harmac Medical Products, Inc. 
   10.6     Employment Agreement dated as of October 15, 1996, between the Registrant and 
              David Chabut. 
   10.7     Employment Agreement dated as of October 1, 1996, between the Registrant and 
              David Shonfeld. 
   10.8     Share Option Agreement dated June 5, 1995, between the Registrant and Leonard N. 
              Tarr. 
   10.9     1996 Stock Option Plan of the Registrant. 
   21.1     List of Subsidiaries. 
   23.1*    Consent of Snow Becker Krauss P.C. (to be included in Exhibit 5.1 to this Registration 
              Statement). 
   23.2     Consent of Coopers & Lybrand LLP, independent certified public accountants, is included in 
              Part II of this Registration Statement. 
   24.1     Power of Attorney (included on the signature page of this Registration Statement). 
   27.1*    Financial Data Schedule. 
</TABLE>

- ------ 
*    To be filed by amendment.
**   Confidential treatment has been requested for certain portions of this
     document.










<PAGE>


                                  UNIVEC, INC.

                             UNDERWRITING AGREEMENT





                                      New York, New York

                                      Dated:                    , 1997







MAIDSTONE FINANCIAL, INC.
101 East 52nd Street
New York, New York 10022

Gentlemen:

                  The undersigned, UNIVEC, INC., a New York corporation (the
"Company"), proposes to issue and sell to Maidstone Financial, Inc.
("Maidstone," the "Underwriter" or "the Representative") as representative of
the several underwriters (the "Underwriters") named on Schedule A hereto,
pursuant to this Underwriting Agreement ("Agreement"), an aggregate of 1,500,000
shares of Common Stock, par value $.001 per share, of the Company (the "Common
Stock"), and 1,500,000 Redeemable Common Stock Purchase Warrants (the
"Warrants"). The Warrants will each be exercisable to purchase one share of
Common Stock, at any time commencing two years from the date on which the
Registration Statement (as defined in Section 1(a) hereof), shall have become or
been declared effective (the "Effective Date"), and ending on the seventh
anniversary of the Effective Date. The Warrant exercise price, subject to
adjustment as described in the agreement providing for the Warrants (the
"Warrant Agreement"), shall be $4.50 per share, subject to adjustment as
described in the Warrant Agreement.

                  Commencing two years after the Effective Date, the Warrants
are subject to redemption by the Company at $.05 per Warrant, provided that (a)
prior notice of not less than 30 days is given to the holders of the Warrants
(the "Warrantholders"), and (b) the closing high bid price per share of Common
Stock, if traded on The NASDAQ Stock Market, or the last sale price per share of
Common Stock, if traded on a national exchange, for the 20 consecutive trading
days ending on the third day prior to the date on which notice of redemption is
given, is at least $8.00.
<PAGE>

                  In addition, the Company proposes to grant to the Underwriters
the Over-Allotment Option (as defined in Section 2(c) hereof) to purchase all or
any part of an aggregate of 225,000 shares of Common Stock and/or 225,000
Warrants, and to issue to you the Underwriters' Warrants (as defined in Section
1 hereof) to purchase certain further additional Shares and/or Warrants.

                  The aggregate of 2,250,000 shares of Common Stock to be sold
by the Company, together with the aggregate of 225,000 additional shares of
Common Stock that are the subject of the Over-allotment Option, are herein
collectively called the "Shares." The Shares and the Warrants (the Warrants, the
additional Warrants subject to the Over-Allotment Option and the Warrants
issuable upon exercise of the Underwriters' Warrants), the shares of Common
Stock issuable upon exercise of the Warrants and the shares of Common Stock
issuable upon exercise of the Underwriters' Warrants, are herein collectively
called the "Securities. " The term "Underwriters' Counsel" shall mean the firm
of Gersten, Savage, Kaplowitz & Curtin, LLP, counsel to the Underwriter, and the
term "Company Counsel" shall mean the firm of Snow Becker Krauss P.C., counsel
to the Company. Unless the context otherwise requires, all references herein to
a "Section" shall mean the appropriate Section of this Agreement.

                  You have advised the Company that you, severally and not
jointly, desire to purchase the Shares and Warrants as herein provided. The
Company confirms the agreements made by it with respect to the purchase of the
Shares and Warrants by you, as follows:

                  1. REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company
represents and warrants to, and agrees with, the Underwriter that:

                            (a) Registration Statement; Prospectus. A
registration statement (File No. 333-1700) on Form SB-2 relating to the public
offering of the Securities (the "Offering"), including a preliminary form of
prospectus, copies of which have heretofore been delivered to you, has been
prepared by the Company in conformity with the requirements of the Securities
Act of 1933 (the "Act"), and the rules and regulations of the Securities and
Exchange Commission (the "Commission") promulgated thereunder (the "Rules and
Regulations"), and has been filed with the Commission under the Act. As used
herein, the term "Preliminary Prospectus" shall mean each prospectus filed
pursuant to Rule 430 or Rule 424(a) of the Rules and Regulations. The
Preliminary Prospectus bore the legend required by Item 501 of Regulation S-B
under the Act and the Rules and Regulations. Such registration statement
(including all financial statements, schedules and exhibits) as amended at the
time it becomes effective and the final prospectus included therein are herein
respectively called the "Registration Statement" and the "Prospectus," except
that (i) if the prospectus filed by the Company pursuant to Rule 424(b) or Rule
430A of the Rules and Regulations shall differ from such final prospectus as
then amended, then the term "Prospectus" shall instead mean the prospectus first
filed pursuant to said Rule 424(b) or Rule 430A, and (ii) if such registration
statement is amended or such prospectus is amended or supplemented after the
effective date of such registration statement and prior to the Option Closing
Date (as defined in Section 2(c) hereof), then (unless the context necessarily
requires otherwise) the term "Registration Statement" shall include such
registration statement as so amended, and the term "Prospectus" shall include
such prospectus as so amended or supplemented, as the case may be.

                                       2

<PAGE>

                            (b) Contents of Registration Statement. On the
Effective Date, and at all times subsequent thereto for so long as the delivery
of a prospectus is required in connection with the offering or sale of any of
the Securities, (i) the Registration Statement and the Prospectus shall in all
material respects conform to the requirements of the Act and the Rules and
Regulations, and (ii) neither the Registration Statement nor the Prospectus
shall include any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary or make statements
therein in light of the circumstances in which they were made, not misleading;
provided, however, that the Company makes no representations, warranties or
agreements as to information contained in or omitted from the Registration
Statement or Prospectus in reliance upon, and in conformity with, written
information furnished to the Company by or on behalf of the Underwriter
specifically for use in the preparation thereof. It is understood that the
statements set forth in the Prospectus with respect to stabilization, the
material set forth under the caption "UNDERWRITING," the information on the
cover page of the Prospectus regarding the underwriting arrangements and the
identity of the Underwriters' Counsel under the caption "LEGAL MATTERS," which
information the Underwriter hereby represents and warrants to the Company is
true and correct in all material respects and does not omit to state any
material fact required to be stated therein or necessary to make statements
therein, in light of the circumstances in which they were made, not misleading,
constitute the only information furnished in writing by or on behalf of the
Underwriter for inclusion in the Registration Statement and Prospectus, as the
case may be.

                            Except for the registration rights granted under the
Underwriters' Warrants, to the Selling Security Holders named in the
Registration Statement, or as disclosed in the Prospectus, no holders of any
securities of the Company or of any options, warrants or convertible or
exchangeable securities of the Company exercisable for or convertible or
exchangeable for securities of the Company, have the right to include any
securities issued by the Company in the Registration Statement or any
registration statement to be filed by the Company.

                            (c) Organization, Standing, Etc. The Company is duly
incorporated and validly existing as a corporation in good standing under the
laws of its jurisdiction of incorporation, with full power and corporate
authority to own its properties and conduct its business as described in the
Prospectus, and is duly qualified or licensed to do business as a foreign
corporation and is in good standing in each other jurisdiction in which the
nature of its business or the character or location of its properties requires
such qualification, except where failure so to qualify will not have an adverse
effect on the business or financial condition of the Company ("Material Adverse
Effect").

                                       3
<PAGE>

                            (d) Capitalization. The authorized, issued and
outstanding capital stock of the Company as of the date of the Prospectus is as
set forth in the Prospectus under the caption "CAPITALIZATION". The shares of
Common Stock issued and outstanding on the Effective Date have been duly
authorized, validly issued and are fully paid and non-assessable. No options,
warrants or other rights to purchase, agreements or other obligations to issue,
or agreements or other rights to convert any obligation into, any shares of
capital stock of the Company have been granted or entered into by the Company,
except as expressly described in the Prospectus. The Securities conform to all
statements relating thereto contained in the Registration Statement or the
Prospectus.

                            (e) Securities. The Securities conform, or will
conform when issued, in all material respects to all statements with respect
thereto contained in the Registration Statement and the Prospectus. The
Securities have been duly authorized and, when issued and delivered against
payment therefor pursuant to this Agreement, the Warrant Agreement or the
Underwriters' Warrants, as the case may be, will be duly authorized, validly
issued, fully paid and non-assessable and free of preemptive rights of any
security holder of the Company. Neither the filing of the Registration Statement
nor the offering or sale of any of the Securities as contemplated by this
Agreement gives rise to any rights, other than those which have been waived or
satisfied, for or relating to the registration of any securities of the Company,
except as described in the Registration Statement.

                            (f) Authority, Etc. This Agreement, the Warrant
Agreement, the Underwriters' Warrants, and the Financial Consulting Agreement
(as hereinafter defined), have been duly and validly authorized, executed and
delivered by the Company and, assuming due execution of this Agreement and such
other agreements by the other party or par-ties hereto and thereto, constitute
valid and binding obligations of the Company enforceable against the Company in
accordance with their respective terms, except as such enforcement is limited by
bankruptcy, insolvency, reorganization, moratorium, or other similar laws
affecting the enforcement of creditors' rights generally, and except insofar as
the enforceability of the indemnification and contribution terms may be limited
by applicable as or public policy. The Company has full right, power and lawful
authority to authorize, issue and sell the Securities and the Underwriters'
Warrants on the terms and conditions set forth herein. All consents, approvals,
authorizations and orders of any court or governmental authority which are
required in connection with the authorization, execution and delivery of such
agreements, the authorization, issue and sale of the Securities and the
Underwriters' Warrants, and the consummation of the transactions contemplated
hereby have been obtained.

                            (g) No Conflict. Except as described in the
Prospectus, the Company is not in violation, breach or default of or under, and
consummation of the transactions hereby contemplated and fulfillment of the
terms of this Agreement will not conflict with or result in a breach of, any of
the terms or provisions of, or constitute a default under, or result in the
creation or imposition of any lien, charge or encumbrance pursuant to the terms
of, any contract, indenture, mortgage, deed of trust, loan agreement or other
material agreement or instrument to which the Company is a party or by which the
Company may be bound or to which any of the property or assets of the Company is
subject, except such as would not have a Material Adverse Effect, nor will such
action result in any violation of the provisions of the Certificate of
Incorporation or the By-laws of the Company, except such as would not have a
Material Adverse Effect, or any statute or any order, rule or regulation
applicable to the Company, or of any court or of any regulatory authority or
other governmental body having jurisdiction over the Company, except such as
would not have a Material Adverse Effect.

                                       4
<PAGE>

                            (h) Assets. Subject to the qualifications stated in
the Prospectus: (i) the Company has good and marketable title to all properties
and assets described in the Prospectus as owned by it, including without
limitation intellectual property, free and clear of all liens, charges,
encumbrances or restrictions, except such as do not materially affect the value
of such properties or assets and do not interfere with the use made or proposed
to be made of such assets or properties by the Company or are not materially
significant or important in relation to the business of the Company; (ii) all of
the material leases and subleases under which the Company is the lessor or
sublessor of properties or assets or under which the Company hold properties or
assets as lessee or sublessee, as described in the Prospectus, are in full force
and effect and, except as described in the Prospectus, the Company is not in
default in any material respect with respect to any of the terms or provisions
of any of such leases or subleases, and no claim has been asserted by any party
adverse to the rights of the Company as lessor, sublessor, lessee or sublessee
under any such lease or sublease, or affecting or questioning the right of the
Company to continued possession of the leased or subleased premises or assets
under any such lease or sublease, except as described or referred to in the
Prospectus; and (iii) the Company owns or leases all such assets and properties,
described in the Prospectus, as are necessary to its operations as now conducted
and, except as otherwise stated in the Prospectus, as proposed to be conducted
as set forth in the Prospectus.

                  The outstanding debt, the property and the business of the
Company conforms in all material respects to the descriptions thereof contained
in the Registration Statement and Prospectus.

                            (i) Independent Accountants. Coopers & Lybrand, who
have given their report on certain financial statements filed or to be filed
with the Commission as a part of the Registration Statement, and which are
included in the Prospectus, are with respect to the Company, independent public
accountants as required by the Act and the Rules and Regulations.

                            (j) Financial Statements. The consolidated financial
statements, together with related notes, set forth in the Registration Statement
and the Prospectus present fairly the consolidated financial position, results
of operations, changes in shareholders' equity and cash flows of the Company on
the basis stated in the Registration Statement, at the respective dates and for
the respective periods to which they apply. Such financial statements and
related notes have been prepared in accordance with generally accepted
accounting principles applied on a consistent basis throughout the entire period
involved, except to the extent disclosed therein. The Summary Financial Data and
Selected Financial Data included in the Registration Statement and the
Prospectus present fairly the information shown therein and have been prepared
on a basis consistent with that of the financial statements included in the
Registration Statement and the Prospectus.

                                       5

<PAGE>

                            (k) No Material Change. Except as otherwise set
forth in the Prospectus, subsequent to the respective dates as of which
information is given in the Registration Statement and the Prospectus, the
Company has not: (i) incurred any liability or obligation, direct or contingent,
or entered into any transaction, which is material to its business; (ii)
effected or experienced any change in its capital stock or incurred any
long-term debt; (iii) issued any options, warrants or other rights to acquire
its capital stock; (iv) declared, paid or made any dividend or distribution of
any kind on its capital stock; or (v) effected or experienced any material
adverse change, or development involving a prospective material adverse change,
in its financial position, net worth, results of operations, business or
business prospects, assets or properties or key personnel.

                            (l) Litigation. Except as set forth in the
Prospectus, there is not now pending nor, to the knowledge of the Company,
threatened, any action, suit or proceeding (including any related to
environmental matters or discrimination on the basis of age, sex, religion or
race), whether or not in the ordinary course of business, to which the Company
is a party or its business or property is subject, before or by any court or
governmental authority, which, if determined adversely to the Company, would
have a material adverse effect on the financial position, net worth, or results
of operations, business or business prospects, assets or property of the
Company; and no labor disputes involving the employees of the Company exist
which would affect materially adversely the business, property, financial
position or results of operations of the Company.

                            (m) Employee and independent Contractor Matters. The
Company has generally enjoyed satisfactory employer/employee relationships with
its employees and is in compliance in all material respects with all Federal,
state and local laws and regulations, including but not limited to, applicable
tax laws and regulations, respecting the employment of employees and employment
practices, terms and conditions of employment and wages and hours relating
thereto. To the knowledge of the Company, there are no pending or threatened
investigations involving the Company by the U.S. Department of Labor or
corresponding foreign agency, or any other governmental agency responsible for
the enforcement of such Federal, state or local laws and regulations. To the
knowledge of the Company, there are no unfair labor practice charges or
complaints against the Company pending before the National Labor Relations Board
or corresponding foreign agency or any strikes, picketing, boycotts, disputes,
slowdowns or stoppages pending or threatened against or involving the Company,
or any predecessor entity, and none has occurred. No representation question
exists respecting the employees of the Company. No collective bargaining
agreements or modifications thereof are currently in effect or being negotiated
by the Company and their respective employees. No grievance or arbitration
proceeding is pending under any expired or existing collective bargaining
agreements of the Company.

                            The Company does not: (i) maintain nor has it
maintained, sponsored or contributed to any program or arrangement that is an
"employee pension benefit plan," an "employee welfare benefit plan" or a
"multi-employer plan" as such terms are defined in Sections 3(2), 3(l) and
3(37), respectively of the Employee Retirement Income Security Act of 1974, as
amended ("ERISA"), except for the Stock Option Plan described in the Prospectus;
(ii) presently maintain or contribute nor at any time in the past, has
maintained or contributed to a defined benefit plan, as defined in Section 3(35)
of ERISA; or (iii) has ever completely or partially withdrawn from a
"multi-employer plan."



                                       6
<PAGE>

                  The Company has generally enjoyed satisfactory relationships
with its independent contractors and is in compliance in all material respects
with all federal, state and local laws and regulations, including but not
limited to applicable tax laws and regulations, respecting the engagement of its
independent contractors.

                            (n) No Unlawful Prospectuses. The Company has not
distributed any prospectus or other offering material in connection with the
Offering contemplated herein, other than any Preliminary Prospectus, the
Prospectus or other material permitted by the Act and the Rules and Regulations.

                            (o) Taxes. Except as disclosed in the Prospectus,
the Company has filed all necessary federal, state, local and foreign income and
franchise tax returns and has paid all taxes shown as due thereon on or before
the date such taxes are due to be paid; and there is no tax deficiency which has
been or, to the knowledge of the Company, might be asserted against the Company.

                            (p) Licenses, Etc. The Company has in effect all
necessary licenses, permits and other governmental authorizations currently
required for the conduct of its business or the ownership of its property, as
described in the Prospectus, and is in all material respects in-compliance
therewith. To the knowledge of the Company, none of the activities or business
of the Company is in violation of, or would cause the Company to violate, any
law, rule, regulation or order of the United States, any country, state, county
or locality, the violation of which would have a material adverse effect upon
the financial position, net worth, results of operations, business or business
prospects, assets or property of the Company taken as a whole.

                            (q) No Prohibited Payments. The Company has not,
nor, to the knowledge of the Company, any of its employees or officers or
directors, agents or any other person acting on behalf of the Company has,
directly or indirectly, contributed or agreed to contribute any money, gift or
similar benefit (other than legal price concessions to customers in the ordinary
course of business) to any customer, supplier, employee or agent of a customer,
supplier, or official or governmental agency or instrumentality of any
government (domestic or foreign) or any political party or candidate for office
(domestic or foreign) or other person who was, is, or may be in a position to
help or hinder the business of the Company (or assist it in connection with any
actual or proposed transaction) which (i) could reasonably be expected to
subject the Company to any material damage or penalty in any civil, criminal or
governmental litigation or proceeding, or (ii) if not made in the future, could
reasonably be expected to materially adversely affect the assets, business,
operations or prospects of the Company. The Company's internal accounting
controls and procedures are sufficient to cause the Company to comply in all
material respects with the Foreign Corrupt Practices Act of 1977, as amended.


 

                                      7


<PAGE>

                            (r) Transfer Taxes. On the Closing Dates (as defined
in Section 2(d) hereof), all transfer and other taxes (including franchise,
capital stock and other taxes, other than income taxes, imposed by any
jurisdiction), if any, which are required to be paid in connection with the sale
and transfer of the Securities to the Underwriters hereunder shall have been
fully paid or provided for by the Company, and all laws imposing such taxes
shall have been fully complied with.

                            (s) Exhibits. All contracts and other documents of
the Company described in the Registration statement or the Prospectus or to be
filed as exhibits to the Registration Statement, have been described in the
Registration Statement or the Prospectus or filed with the Commission, as
required under the Rules and Regulations.

                            (t) Subsidiaries. Except as described in the
Prospectus, the Company has no subsidiaries.

                            (u) Registration Rights. No security holder of the
Company whose securities are not included in the Registration Statement has any
rights with respect to the registration of any Securities, and all registration
rights with respect to the Offering have been waived.

                            (v) No Stabilization or Manipulation. Neither the
Company nor, to the Company's knowledge, any of its officers or directors or any
of its employees or shareholders, have taken and will not take, directly or
indirectly, any action designed to cause or result in, or which has constituted
or which might reasonably be expected to constitute, under the Exchange Act or
otherwise, the stabilization or manipulation of the price of the Common Stock to
facilitate the sale or resale of the Securities.

                            (w) No Finders. Except as described in the
Prospectus, to the knowledge of the Company, there are no claims, payments,
issuances, arrangements or understandings for services in the nature of a
finder's or origination fee with respect to the sale of the Securities hereunder
or any other arrangements, agreements, understandings, commitments, payments or
issuances of securities with respect to the Company that may affect the
Underwriter's compensation, as determined by the National Association of
Securities Dealers, Inc. ("NASD").

                            (x) Lock-up Agreements. The Company has obtained
from each director, officer and existing shareholder of the Company (the
"Existing Shareholders"), a LockUp Agreement (as defined in Section 3(r) hereof)
in the form previously delivered.

                            (y) Licensing and Accreditation. The Company has at
all times since the commencement of its business been in compliance with all
federal, state and local laws, rules and regulations applicable to the nature of
its business and operation. The Company has all necessary licenses to operate
its business.


                                       8
<PAGE>

                            (aa) No Adverse Effect of Transaction Contemplated
Hereby. Neither the completion of the Offering nor any of the transactions
contemplated herein or in the Prospectus, including but not limited to the
issuance of any of the Securities, will result in a "change of control" or the
loss of, or have any adverse effect on, the maintenance in good standing of the
Company's licenses.

                  2.       PURCHASE, DELIVERY AND SALE OF SECURITIES

                            (a) Purchase Price Securities. The Securities shall
be sold to and purchased by the Underwriters at the purchase price of $3.15 per
Share and $.09 per Warrant (that being the public offering price of $3.50 per
Share and $.10 per Warrant less an underwriting discount of 10 percent) (the
"Purchase Price").

                           (b)      Firm Securities.

                                    (i) Subject to the terms and conditions of
this Agreement, and on the basis of the representations, warranties and
agreements herein contained the Company agrees to issue and sell to the
Underwriters, and the Underwriters, agree to buy from the Company at the
Purchase Price, all of the Shares and Warrants (the "Firm Securities").

                                    (ii) Delivery of the Firm Securities against
payment therefor shall take place at the offices of Maidstone Financial, Inc.,
101 East 52nd Street, New York, New York 10022 (or at such other place as may be
designated by agreement between you and the Company) at 10:00 a.m., New York
Time, on , 1997, or at such later time and date, not later than eight business
days after the Effective Date, as you may designate (such time and date of
payment and delivery for the Firm Securities being herein called the "First
Closing Date").

                           (c)      Option Securities.

                                    (i) In addition, subject to the terms and
conditions of this Agreement, and on the basis of the representations,
warranties and agreements herein contained, the Company hereby grants to the
Underwriters an option (the "Over-Allotment Option"), to purchase from the
Company all or any part of an aggregate of an additional 225,000 Shares and/or
337,500 Warrants at the Purchase Price (the "Option Securities").

                                    (ii) The Over-Allotment Option may be
exercised by the Underwriters, in whole or in part, within thirty business days
after the Effective Date, upon written notice by Maidstone to the Company
advising it of the number of Option Securities as to which the Over-Allotment
Option is being exercised, the names and denominations in which the certificates
for the Shares and the Warrants comprising such Option Securities are to be
registered, and the time and date when such certificates are to be delivered.
Such time and date shall be determined by you but shall not be less than two nor
more than ten business days after exercise of the Over-Allotment Option, nor in
any event prior to the First Closing Date (such time and date being herein
called the "Option Closing Date"). Delivery of the Option Securities against
payment therefor shall take place at Maidstone's offices.

                                       9

<PAGE>

                                    (iii) The Over-Allotment may be exercised
only to cover overallotments in the sale by the Underwriters of Firm Securities.

                           (d)      Delivery of Certificates; Payment.

                                    (i) The Company shall make the certificates
for the Shares and the Warrants to be purchased hereunder available to you for
checking at least one full business day prior to the First Closing Date or the
Option Closing Date (each, a "Closing Date"), as the case may be. The
certificates shall be in such names and denominations as you may request at
least two business days prior to the relevant Closing Date. The availability of
the certificates at the time and place specified in this Section 2(d)(i) is a
further condition to the obligations of the Underwriter hereunder.

                                    (ii) On the First Closing Date, the Company
shall deliver to you for the account of the Underwriters definitive engraved
certificates in negotiable form representing all of the Shares and the Warrants
to be sold by the Company, against payment of the Purchase Price therefor by you
for the account of the Underwriters, by certified or bank cashier's checks
payable in New York Clearing House funds to the order of the Company.

                                    (iii) In addition, if and to the extent that
the Underwriters exercise the Over-Allotment Option, then on the Option Closing
Date the Company shall deliver to you for the account of the Underwriters or its
designees definitive engraved certificates in negotiable form representing the
Shares and the Warrants to be sold by the Company, against payment of the
Purchase Price therefor by the Underwriters for the account of the Underwriters
or its designees, by certified or bank cashier's checks payable in next day
funds to the order of the Company.

                                    (iv) It is understood that the Underwriters
propose to offer the Shares and Warrants to be purchased hereunder to the
public, upon the terms and conditions set forth in the Registration Statement,
after the Registration Statement becomes effective.

                  3.       COVENANTS OF THE COMPANY.  The Company covenants
and agrees with the Underwriters that:

                           (a)      Registration.

                                    (i) The Company shall use its best efforts
to cause the Registration Statement to become effective and, upon notification
from the Commission that the Registration Statement has become effective, shall
so advise you and shall not at any time, whether before or after the Effective
Date, file any amendment to the Registration Statement or any amendment or
supplement to the Prospectus of which you shall not previously have been advised
and furnished with a copy, or to which you or Underwriters' Counsel shall have
objected in writing, or which is not in compliance with the Act and the Rules
and Regulations.

                                       10

<PAGE>

                                    (ii) Promptly after you or the Company shall
have been advised thereof, you shall advise the Company or the Company shall
advise you, as the case may be, and confirm such advice in writing, of (A) the
receipt of any comments of the Commission, (B) the effectiveness of any
post-effective amendment to the Registration Statement, (C) the filing of any
supplement to the Prospectus or any amended Prospectus, (D) any request made by
the Commission for amendment of the Registration Statement or amendment or
supplementing of the Prospectus, or for additional information with respect
thereto, or (E) the issuance by the Commission or any state or regulatory body
of any stop order or other order denying or suspending the effectiveness of the
Registration Statement, or preventing or suspending the use of any Preliminary
Prospectus, or suspending the qualification of the Securities for offering in
any jurisdiction, or otherwise preventing or impairing the Offering, or the
institution or threat of any proceeding for any of such purposes. The Company
and you shall not acquiesce in such order or proceeding, and shall instead
actively defend such order or proceeding, unless the Company and you agree in
writing to such acquiescence.

                                    (iii) The Company has caused to be delivered
to you copies of each Preliminary Prospectus, and the Company has consented and
hereby consents to the use of such copies for the purposes permitted by the Act.
The Company authorizes the Underwriters and selected dealers to use the
Prospectus in connection with the sale of the Securities for such period as in
the opinion of Underwriters' Counsel the use thereof is required to comply with
the applicable provisions of the Act and the Rules and Regulations. In case of
the happening, at any time within such period as a prospectus is required under
the Act to be delivered in connection with sales by an underwriter or dealer, of
any event of which the Company has knowledge and which materially affects the
Company or the Securities, or which in the opinion of Company Counsel or of
Underwriters' Counsel should be set forth in an amendment to the Registration
Statement or an amendment or supplement to the Prospectus in order to make the
statement made therein not then misleading, in light of the circumstances
existing at the time the Prospectus is required to be delivered to a purchaser
of the Securities, or in case it shall be necessary to amend or supplement the
Prospectus to comply with the Act or the Rules and Regulations, the Company
shall notify you promptly and forthwith prepare and furnish to the Underwriters
copies of such amended Prospectus or of such supplement to be attached to the
Prospectus, in such quantities as you may reasonably request, in order that the
Prospectus, as so amended or supplemented, shall not contain any untrue
statement of a material fact or omit to state any material fact necessary in
order to make the statements in the Prospectus, in the light of the
circumstances under which they are made, not misleading. The preparation and
furnishing of each such amendment to the Registration Statement, amended
Prospectus or supplement to be attached to the Prospectus shall be without
expense to the Underwriters, except that in the case that the Underwriters are
required, in connection with the sale of the Securities, to deliver a prospectus
nine months or more after the Effective Date, the Company shall upon your
request and at the expense of the Underwriter, amend the Registration Statement
and amend or supplement the Prospectus, or file a new registration statement, if
necessary, and furnish the Underwriters with reasonable quantities of
prospectuses complying with section 10(a)(3) of the Act.


                                       11

<PAGE>

                                    (iv) The Company will deliver to you at or
before the First Closing Date two signed copies of the Registration Statement
including all financial statements and exhibits filed therewith, and of all
amendments thereto. The Company will deliver to or upon your order, from time to
time until the Effective Date as many copies of any Preliminary Prospectus filed
with the Commission prior to the Effective Date as the Underwriters may
reasonably request. The Company will deliver to you on the Effective Date and
thereafter for so long as a Prospectus is required to be delivered under the
Act, from time to time, as many copies of the Prospectus, in final form, or as
thereafter amended or supplemented, as the Underwriters may from time to time
reasonably request.

                                    (v) The Company shall comply with the Act,
the Rules and Regulations, and the Securities Exchange Act of 1934 (the
"Exchange Act"), and the rules and regulations promulgated thereunder in
connection with the offering and issuance of the Securities in all material
respects.

                            (b) Blue Sky. The Company shall, at its own expense,
use its best efforts to qualify or register the Securities for sale (or obtain
an exemption from registration) under the securities or "blue sky" laws of such
jurisdictions as you may designate, and shall make such applications and furnish
such information to Underwriters' Counsel as may be required for that purpose,
and shall comply with such laws; provided, however, that the Company shall not
be required to qualify as a foreign corporation or a dealer in securities or to
execute a general consent to service of process In any jurisdiction in any
action other than one arising out of the offering or sale of the Securities. The
Company shall bear all of the expense of such qualifications and registrations,
including without limitation the legal fees and disbursements of Underwriters'
Counsel, of $35,000 ($10,000 of which has already been paid), plus disbursements
relating to, but not limited, long-distance telephone calls, photocopying,
messengers, excess postage, overnight mail and courier services. After each
Closing Date, the Company shall, at its own expense, from time to time prepare
and file such statements and reports as may be required to continue each such
qualification (or maintain such exemption from registration) in effect for so
long a period as required by law, regulation or administrative policy in
connection with the offering of the Securities.

                            (c) Exchange Act Registration. The Company shall at
its own expense, prepare and file with the Commission a registration statement
(on Form 8-A or Form 10) under section 12 of the Exchange Act, and shall use its
best efforts to cause such registration statement to be declared effective by
the Commission on an accelerated basis on the Effective Date and maintained in
effect for at least five years from the Effective Date.

                            (d) Prospectus Copies. The Company shall deliver to
you on or before the First Closing Date a copy of the Registration Statement
including all financial statements, schedules and exhibits filed therewith, and
of all amendments thereto. The Company shall deliver to or on the order of the
Underwriter, from time to time until the Effective Date, as many copies of any
Preliminary Prospectus filed with the Commission prior to the Effective Date as
the Underwriters may reasonably request. The Company shall deliver to the
Underwriters on the Effective Date, and thereafter for so long as a prospectus
is required to be delivered under the Act, from time to time, as many copies of
the Prospectus, in final form, or as thereafter amended or supplemented, as the
Underwriters may from time to time reasonably request.

                                       12

<PAGE>

                            (e) Amendments and Supplements. The Company shall,
promptly upon your request, prepare and file with the Commission any amendments
to the Registration Statement, and any amendments or supplements to the
Preliminary Prospectus or the Prospectus, and take any other action which in the
reasonable opinion of Underwriters' Counsel and Company Counsel may be
reasonably necessary or advisable in connection with the distribution of the
Securities, and shall use its best efforts to cause the same to become effective
as promptly as possible.

                            (f) Certain Market Practices. The Company has not
taken, and shall not take, directly or indirectly, any action designed, or which
might reasonably be expected, to cause or result in, or which has constituted,
the stabilization or manipulation of the price of the Securities to facilitate
the sale or resale thereof.

                            (g) Certain Representations. Neither the Company nor
any representative of the Company has made nor shall make any written or oral
representation in connection with the Offering and sale of the Securities or the
Underwriters' Warrants which is not contained in the Prospectus, which is
otherwise inconsistent with or in contravention of anything contained in the
Prospectus, or which shall constitute a violation of the Act, the Rules and
Regulations, the Exchange Act or the rules and regulations promulgated under the
Exchange Act.

                            (h) Continuing Registration of Warrants and
Underlying Common Stock. For so long as any Warrant is outstanding, the Company
shall, at its own expense: (i) use its best efforts to cause post-effective
amendments to the Registration Statement, or new registration statements
relating to the Warrants and the Common Stock underlying the Warrants to become
effective in compliance with the Act and without any lapse of time between the
effectiveness of the Registration Statement and of any such post-effective
amendment or new registration statement; provided, however, that the Company
shall have no obligation to maintain the effectiveness of such Registration
Statement or file a new Registration Statement, or to keep available a
prospectus at any time at which such registration or prospectus is not then
required; (ii) cause a copy of each Prospectus, as then amended, to be delivered
to each holder of record of a Warrant; (iii) furnish to the Underwriters and
dealers as many copies of each such Prospectus as the Underwriters or dealers
may reasonably request; and (iv) maintain the "blue sky" qualification or
registration of the Warrants and the Common Stock underlying the Warrants, or
have a currently available exemption therefrom, in each jurisdiction in which
the Securities were so qualified or registered for purposes of the Offering.


                                       13


<PAGE>

                            (i) Use of Proceeds. The Company shall apply the net
proceeds from the sale of the Securities substantially for the purposes set
forth in the Prospectus under the caption "USE OF PROCEEDS," and shall file such
reports with the Commission with respect to the sale of the Securities and the
application of the proceeds therefrom as may be required pursuant to Rule 463 of
the Rules and Regulations.

                            (j) Twelve Months' Earnings Statement. The Company
shall make generally available to its security holders and deliver to you as
soon as it is practicable so to do, but in no event later than ninety days after
the end of twelve months after the close of its current fiscal quarter, an
earnings statement (which need not be audited) covering a period of at least
twelve consecutive months beginning after the Effective Date, which shall
satisfy the requirements of section 11(a) of the Act.

                            (k) NASDAQ Exchange Listings, Etc. The Company shall
immediately make all filings required to seek approval for the quotation of the
Securities on the NASDAQ SmallCap Market ("NASDAQ") and shall use its best
efforts to effect and maintain such approval for at least five years from the
Effective Date. Within 10 days after the Effective Date, the Company shall to
list itself, on an expedited basis, in Moody's OTC Industrial Manual, Standard
and Poor's Corporation Descriptions or other recognized securities manuals
acceptable to the Underwriters and to cause such listing to be maintained for
five years from the Effective Date.

                            (l) Board of Directors. For a period of three (3)
years after Closing Date I, nominate and use its best efforts to engage a
designee of the Representative, as a nonvoting advisor to the Company's Board of
Directors (the "Advisor") or in lieu thereof, at the Representative's option, to
designate an individual for election as a director, in which case the Company
shall use its best efforts to have such individual elected as a director. The
designee may be a director, officer, partner, employee or affiliate of the
Underwriters and the Representative shall designate such person in writing to
the Board. In the event the Underwriters shall not have designated such
individual at the time of any meeting of the Board or such person is unavailable
to serve, the Company shall notify the Representative of each meeting of the
Board. An individual, if any, designated by the Representative shall receive all
notices and other correspondence and communications sent by the Company to
members of the Board. Such Advisor or director, as the case may be, shall be
entitled to receive reimbursement for all reasonable costs incurred in attending
such meetings including, but not limited to, food, lodging, and transportation.
In addition, such Advisor or Director shall be entitled to the same compensation
as the Company gives to other non-employee directors for acting in such
capacity. The Company further agrees that, during said three (3) year period, it
shall give the Advisor or Director, as the case may be, the same notice of any
meeting of the Company's Board of Directors as it affords its other directors.

                            The Company agrees to indemnify and hold the
Underwriters and such Advisor harmless against any and all claims, actions,
damages, costs and expenses, and judgments arising solely out of the attendance
and participation of the Advisor at any such meeting described herein. In the
event the Company maintains a liability insurance policy affording coverage for
the acts of its officers and directors, it agrees, if possible to include the
Advisor as an insured under such policy.

                                       14


<PAGE>

                            (m) Periodic Reports. For so long as the Company is
a reporting company under section 12(g) or section 15(d) of the Exchange Act,
the Company shall, at its own expense, hold an annual meeting of shareholders
for the election of directors within 180 days after the end of each of the
Company's fiscal years and, within 150 days after the end of each of the
Company's fiscal years, and furnish to its shareholders an annual report
(including financial statements audited by certified public accountants) in
reasonable detail. In addition, during the period ending five years from the
date hereof, the Company shall, at its own expense, furnish to you: (i) within
90 days of the end of each fiscal year, a balance sheet of the Company as at the
end of such fiscal year, together with statements of income, shareholders'
equity and cash flows of the Company as at the end of such fiscal year, all in
reasonable detail and accompanied by a copy of the certificate or report thereon
of certified public accountants; (ii) as soon as they are available, a copy of
all reports (financial or otherwise) distributed to security holders, and (iii)
as soon as they are available, a copy of all non-confidential reports and
financial statements furnished to or filed with the Commission. The financial
statements referred to herein shall be on a consolidated basis to the extent the
accounts of the Company are consolidated in reports furnished to its
shareholders generally.

                            (n) Form S-8 Registrations. Subject to the
provisions of subsection (o) below, for a period of two years following the
First Closing Date, the Company shall not, without Maidstone's prior written
consent, register or otherwise facilitate the registration of any of its
securities issuable upon the exercise of options, warrants (other than options
issued pursuant to the 1996 Stock Option Plan, the Warrants and the
Underwriter's Warrants) or other rights. whether by means of a Registration
Statement on Form S-8 or otherwise, unless the holders of shares of Common stock
being registered in such S-8 agree not to sell such shares for a period of two
years from the Effective Date without the consent of the Representative.

                            (o) Future Sales. For a period of two years
following the First Closing Date, the Company shall not, without Maidstone's
prior written consent, issue any shares of Common Stock, Preferred Stock or
securities convertible into Common Stock. Notwithstanding the foregoing, the
Company may at any time issue shares of Common Stock pursuant to the exercise of
the Warrants, the Warrants underlying the Underwriter's Warrants, and options,
warrants or conversion rights issued and outstanding on the Effective Date and
described in the Prospectus.

                            (p) Regulation S Sales. For a period of two years
following the First Closing Date, the Company shall not issue or sell any
securities pursuant to Regulation S of the Rules and Regulations under the Act,
without Maidstone's prior written consent.

                            (q) Agreements with Shareholders, Directors and
Officers. The Company shall cause each of the Company's existing shareholders,
directors and officers to enter into written agreements with Maidstone (the
"Lock-up Agreements") prior to the Effective Date, that, for a period of
twenty-four months from the Effective Date, they will not, without the consent
of Maidstone, (i) publicly sell any securities of the Company owned directly or
indirectly by them or owned beneficially by them (as defined in the Exchange
Act), or (ii) otherwise sell, or transfer such securities unless the transferee
agrees in writing to be bound by an identical lock-up.


                                       15
<PAGE>

                            (r) Warrant Solicitation. Upon the exercise of any
Warrants on or after the first anniversary of the Effective Date, the Company
shall pay to Maidstone a commission of five (5%) percent of the aggregate
exercise price of such Warrants, a portion of which may be reallowed by
Maidstone to the dealer who solicited the exercise (which may also be you), if:
(i) the market price of the Common Stock is greater than the exercise price of
the Warrant on the date of exercise; (ii) the exercise of the Warrant was
solicited by Maidstone; (iii) the Warrant is not held in a discretionary
account; (iv) the disclosure of the compensation arrangements has been made in
documents provided to customers, both as part of the Offering and at the time of
exercise; and (v) the solicitation of the Warrant was not in violation of Rule
10b-6 promulgated under the Exchange Act. No commission shall be paid to you on
any Warrant exercise prior to the first anniversary of the Effective Date, or on
any Warrant exercised at any time without solicitation by Maidstone or a
soliciting dealer.

                            (s) Available Shares. The Company shall reserve and
at all times keep available that maximum number of its authorized but unissued
shares of Common Stock which are issuable upon exercise of the Warrants, the
Underwriters' Warrants, and the Warrants issuable upon exercise of the
Underwriters' Warrants, in each case taking into account the antidilution
provisions thereof.

                            (t) Financial Consulting Agreement. On the First
Closing Date and simultaneously with the delivery of the Firm Securities, the
Company shall execute and deliver to Maidstone an agreement with Maidstone, or
its representative, in the form previously delivered to the Company by
Maidstone, regarding the services of Maidstone or its representative a financial
consultant to the Company (the "Financial Consulting Agreement"), for a
twenty-four month period commencing as of the date hereof at a fee equal to
$4,000 per month which shall be paid in its entirety on the First Closing Date.

                            (u) Management. On each Closing Date, the Chief
Executive Officer of the Company shall be Joel Schoenfeld and the President of
the Company shall be Alan H. Gold. Prior to the Effective Date, the Company
shall have obtained "key-employee" life insurance coverage in the amount of
$1,000,000 on each of them. As of the Effective Date, the Company shall have
entered into employment agreements with Messrs. Schoenfeld and Gold as set forth
in the Registration Statement.

                            (v) Stock Transfer Sheets. The Company shall
instruct its Transfer Agent (as defined in Section 4(h) hereto) to deliver to
you copies of all advice sheets showing the daily transfer of the outstanding
shares of Common Stock and Warrants sold by the Company in the public offering
and shall, at its own expense, furnish you weekly following the First Closing
Date during the period ending three years following the First Closing Date with
Depository Trust Company stock transfer sheets.

                                       16
<PAGE>


                            (w) Public Relations. As of the Closing Date, the
Company shall have retained a public relations firm reasonably acceptable to
you, and shall continue to retain such firm, or an alternate firm reasonably
acceptable to Maidstone, for a period of twelve (12) months.

                            (x) Additional Representations. The Company shall
engage the Underwriters' Counsel to provide the Underwriter, at the First
Closing Date and quarterly thereafter, until such time as the Common Stock is
listed on the New York Stock Exchange or the American Stock Exchange or quoted
on NASDAQ National Market System, with an opinion, setting forth those states in
which the Common Stock may be traded in non-issuer transactions under the blue
sky laws of the fifty states. The Company shall pay the Underwriters' Counsel a
one-time fee of $12,500 at the First Closing Date for such opinions.

                                    (aa) Bound Volumes. Within a reasonable time
after the First Closing Date, the Company shall deliver to you, at the Company's
expense, five bound volumes, containing the Registration Statement and all
exhibits filed therewith and all amendments thereto, and all other agreements,
correspondence, filings, certificates and other documents filed and/or delivered
in connection with the Offering.

                  4. CONDITIONS TO UNDERWRITERS' OBLIGATIONS. The obligations of
the Underwriters to purchase and pay for the Securities which the Underwriters
have agreed to purchase hereunder are subject to the material accuracy (as of
the date hereof and as of each Closing Date) of the representations and
warranties of the Company contained herein, the performance by the Company of
all of its respective obligations hereunder and the following further
conditions:

                            (a) Effective Registration Statement; No Stop Order.
The Registration Statement shall have become effective and you shall have
received notice thereof not later than 6:00 p.m., New York time, on the date of
this Agreement, or at such later time or on such later date as provided herein
or to which you may agree in writing. In addition, on each Closing Date (i) no
stop order denying or suspending the effectiveness of the Registration Statement
shall be in effect, and no proceedings for that or any similar purpose shall
have been instituted or shall be pending or, to your knowledge or to the
knowledge of the Company, shall be contemplated by the Commission, and (ii) all
requests on the part of the Commission for additional information shall have
been complied with to the reasonable satisfaction of Underwriters' Counsel.

                            (b) Opinion of Company Counsel. On the First Closing
Date, you shall have received the opinion, dated as of the First Closing Date,
of Company Counsel, in form and substance satisfactory to the Underwriters'
Counsel, to the effect that:


                                       17
<PAGE>

                                    (i) the Company has been duly incorporated
         and validly exists as a corporation in good standing under the laws of
         its jurisdiction of incorporation, with full corporate power and
         authority to own its properties and conduct its business as described
         in the Prospectus, and to such counsel's knowledge, is duly qualified
         or licensed to do business as a foreign corporations and is in good
         standing in each other jurisdiction in which the nature of its business
         or the character or location of its properties requires such
         qualification, except where failure to so qualify will not have a
         material adverse affect on the business, properties or financial
         condition of the Company taken as a whole;

                                    (ii) (A) the authorized capitalization of
         the Company as of the date of the Prospectus was as is set forth in the
         Prospectus under the caption "CAPITALIZATION." (B) all of the shares of
         Common Stock now outstanding have been duly authorized and validly
         issued, are fully paid and non-assessable, conform in all material
         respects to the description thereof contained in the Prospectus, have
         not been issued in violation of the preemptive rights of any
         shareholder and, except as described in the Prospectus, are not subject
         to any restrictions upon the voting or transfer thereof; (C) all of the
         Shares and all of the Warrants comprising the Securities have been duly
         authorized and, when issued and delivered to the Underwriters against
         payment therefor as provided herein, shall be validly issued, fully
         paid and non-assessable, shall not have been issued in violation of the
         preemptive rights of any shareholder, and no personal liability shall
         attach to the ownership thereof; (D) the shareholders of the Company do
         not have any preemptive rights or other rights to subscribe for or
         purchase, and except for the transfer restrictions imposed by Rule 144
         of the Rules and Regulations promulgated under the Act or contained in
         the Lock-up Agreements executed with the Underwriters, there are no
         restrictions upon the voting or transfer of, any of the Securities; (E)
         the Shares and the Warrants comprising the Securities, the Warrant
         Agreement and the Underwriters' Warrants conform in all material
         respects to the respective descriptions thereof contained in the
         Prospectus; (F) all issuances of the Company's securities have been
         made in compliance with, or under an exemption from, the Act and
         applicable state securities laws; (G) a sufficient number of shares of
         Common Stock has been reserved, for all times when any of the Warrants
         (including the Warrants issuable upon exercise of the Underwriters'
         Warrants) are outstanding, for issuance upon exercise of all of the
         Warrants; and (H) to the knowledge of such counsel, neither the filing
         of the Registration Statement nor the offering or sale of the
         Securities as contemplated by this Agreement gives rise to any
         registration rights or other rights, other than those which have been
         effectively waived or satisfied or described in the Prospectus, for or
         relating to the registration of any securities of the Company,

                                    (iii) the certificates evidencing the Shares
         and the Warrants comprising the Securities are each in valid and proper
         legal form; and the Warrants are exercisable for shares of Common Stock
         in accordance with the terms of the Warrants;

                                       18

<PAGE>

                                    (iv) this Agreement, the Warrant Agreement,
         the Underwriters' Warrants, and the Financial Consulting Agreement have
         been duly and validly authorized, executed and delivered by the Company
         and (assuming due execution and delivery thereof by the Underwriter
         and/or Continental Stock Transfer & Trust Company, as the case may be)
         all of such agreements are, or when duly executed shall be, the valid
         and legally binding obligations of the Company, enforceable in
         accordance with their respective terms (except as enforceability may be
         limited by bankruptcy, insolvency or other laws affecting the rights of
         creditors generally or by general equitable principles); provided,
         however, that no opinion need to be expressed as to the enforceability
         of the indemnity provisions contained in Section 6 or the contribution
         provisions contained in Section 7;

                                    (v) Other than as described in the
         Prospectus (A) there is no pending, threatened or contemplated legal or
         governmental proceeding affecting the Company which would have a
         Material Adverse Effect or earnings of the Company, or which questions
         the validity of the Offering, the Securities, this Agreement, the
         Warrant Agreement, the Underwriters' Warrants, or the Financial
         Consulting Agreement or of any action taken or to be taken by the
         Company pursuant thereto; and (B) there is no legal or governmental
         regulatory proceeding required to be described or refer-red to in the
         Registration Statement which is not so described or referred to;

                                    (vi) (A) the Company is not in violation of
         or default under this Agreement, the Warrant Agreement, the
         Underwriters' Warrants, or the Financial Consulting Agreement; and (B)
         to the knowledge of such counsel, the execution and delivery hereof and
         thereof and consummation of the transactions herein or therein
         contemplated shall not result in a material violation of, or constitute
         a default under, the Certificate of Incorporation or By-law-s of the
         Company, or any material obligation, agreement, covenant of condition
         contained in any bond, debenture, note or other evidence of
         indebtedness, or in any material contract, indenture, mortgage, loan
         agreement, lease, joint venture or other agreement or instrument to
         which the Company is a party or by which the assets of the Company is
         bound, or any material order, rule, regulation, writ, injunction or
         decree of any government, governmental instrumentality or court
         applicable to the Company;

                                    (vii) (a) the Company has obtained, or is in
         the process of obtaining, all licenses, permits and other governmental
         authorizations necessary to the conduct of its business as described in
         the Prospectus, (b) such obtained licenses, permits and other
         governmental authorizations are in full force and effect, and (c) the
         Company is in all material respects complying therewith;


                                       19
<PAGE>

                                    (viii) the Registration Statement has become
         effective under the Act, and to the knowledge of such counsel, no stop
         order denying or suspending the effectiveness of the Registration
         Statement is in effect, and no proceedings for that or any similar
         purpose have been instituted or are pending before or threatened by the
         Commission;

                                    (ix) the Registration Statement and the
         Prospectus (except for the financial statements, notes thereto and
         other financial information and statistical data contained therein, as
         to which counsel need not express an opinion) comply as to form in all
         material respects with the Act and the Rules and Regulations;

                                    (x) all descriptions contained in the
         Registration Statement and the Prospectus, and any amendments or
         supplements thereto, of' contracts and other documents are accurate and
         fairly present the information required to be described, and such
         counsel is familiar with all contracts and other documents referred to
         in the Registration Statement and the Prospectus, and any such
         amendment or supplement, or filed as exhibits to the Registration
         Statement and, to the knowledge of such counsel, no contract, document,
         license or permit of a character required to be summarized or described
         therein or to be filed as an exhibit thereto is not so summarized,
         described or filed.

                                    (xi) the statements in the Registration
         Statement and the Prospectus under the captions "Risk Factors," "Use of
         Proceeds," "Business," "Management, " and "Description of Securities, "
         which purport to summarize the provisions of agreements, licenses,
         statutes or rules and regulations, have been reviewed by such counsel
         and are accurate summaries in all material respects;

                                    (xii) except for registration under the Act
         and registration or qualification of the Securities under applicable
         state or foreign securities or blue sky laws and NASD approval, no
         authorization, approval, consent or license of any governmental or
         regulatory authority or agency is necessary in connection with: (A) the
         authorization, issuance, sale, transfer or delivery of the Securities
         by the Company in accordance with this Agreement; (B) the execution,
         delivery and performance of this Agreement by the Company or the taking
         of any action contemplated herein; (C) the issuance of the
         Underwriters' Warrants in accordance with this Agreement or the
         Securities issuable upon exercise thereof; or the taking of any action
         contemplated herein.


                                       20

<PAGE>



In rendering the opinions as set forth above, such counsel may rely upon
certificates of officers of the Company and of public officials as to matters of
fact. Such opinion shall also include a statement to the effect that in
connection with the preparation of the Registration Statement and the
Prospectus, such counsel has participated in conferences with officers and other
representatives of the Company, the Representative, Underwriters' counsel and
the independent certified public accountants of the Company, at which
conferences the contents of the Registration Statement and the Prospectus and
related matters were discussed, and although such counsel is not passing on, and
has not verified the accuracy, completeness or fairness of the statements
contained in the Registration Statement and Prospectus (except for customary due
diligence) nothing has come to the attention of such counsel which leads them to
believe that at the time the Registration Statement became effective under the
Act, the Prospectus, on the date it was filed pursuant to Rule 424(b), and the
Registration Statement and the Prospectus as of the date hereof (other than the
financial statements and schedules and other financial and statistical
information as to which counsel need not express an opinion) contains any untrue
statement of a material fact or omits to state a material fact necessary in
order to make the statements therein, in light of the circumstances under which
they were made, not misleading. In addition, such opinion shall also cover such
matters incident to the transactions contemplated hereby as you or Underwriters'
Counsel shall reasonably request. In rendering such opinion, Company Counsel may
rely as to matters of fact upon certificates of officers of the Company, and of
public officials, and may rely as to all matters of law other than the law of
the United States or the State of New York and the General Corporation Law of
the State of Delaware, upon opinions of counsel reasonably satisfactory to you,
in which case the opinion shall state that they have no reason to believe that
you and they are not entitled so to rely.

                            (c) Intentionally omitted.

                            (d) Corporate Proceedings. All corporate proceedings
and other legal matters relating to this Agreement, the Registration Statement,
the Prospectus and other related matters shall be reasonably satisfactory to or
approved by Underwriters' Counsel.

                            (e) Comfort Letter. Prior to the Effective Date, and
again on and as of the First Closing Date, you shall have received a letter from
Coopers & Lybrand, certified public accountants for the Company, reasonably
satisfactory in form and substance to the Underwriters' Counsel.

                            (f) Bring Down. At each of the Closing Dates, (i)
the representations and warranties of the Company contained in this Agreement
shall be true and correct with the same effect as if made on and as of such
Closing Date, and the Company shall have performed all of its obligations
hereunder and satisfied all the conditions to be satisfied at or prior to such
Closing Date; (ii) the Registration Statement and the Prospectus shall contain
all statements which are required to be stated therein in accordance with the
Act and the Rules and Regulations, and shall in all material respects conform to
the requirements of the Act and the Rules and Regulations, and neither the
Registration Statement nor the Prospectus shall contain any untrue statement of
a material fact or omit to state any material fact required to be stated or
necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading; (iii) there shall have been, since the
respective dates as of which information is given, no material adverse change in
the business, operations, condition (financial or otherwise), earnings, capital
stock, long-term or short-term debt or general affairs of the Company from that
set forth in the Registration Statement and the Prospectus, except changes which
the Registration Statement and Prospectus indicate might occur after the
Effective Date, and the Company shall not have incurred any material liabilities
nor entered into any material agreement other than as referred to in the
Registration Statement and Prospectus; and (iv) except as set forth in the
Prospectus, no action, suit or proceeding shall be pending or threatened against
the Company before or by any commission, board or administrative agency in the
United States or elsewhere, wherein an unfavorable decision, ruling or finding
would materially adversely affect the business, property, operations, condition
(financial or otherwise), earnings or general affairs of the Company. In
addition, you shall have received, at the First Closing Date, a certificate
signed by the principal executive officer and by the principal financial officer
of the Company, dated as of the First Closing Date, evidencing compliance with
the provisions of this Section 4(g).


                                       21

<PAGE>

                            (g) Transfer and Warrant Agent. On or before the
Effective Date, the Company shall have appointed Continental Stock Transfer &
Trust Company (or other agent mutually acceptable to the Company and Maidstone),
as its transfer agent and warrant agent ("Transfer Agent") to transfer all of
the Shares and Warrants issued in the Offering, as well as to transfer other
shares of the Common Stock outstanding from time to time.

                            (h) NASD Approval Of Underwriters' Compensation. By
the Effective Date, the Underwriter shall have received clearance from the NASD
as to the amount of compensation allowable or payable to the Underwriters, as
described in the Registration Statement.

                            (i) Certain Further Matters. On each Closing Date.
Underwriters' Counsel shall have been furnished with all such other documents
and certificates as they may reasonably request for the purpose of enabling them
to render their legal opinion to the Underwriter and in order to evidence the
accuracy and completeness of any of the representations, warranties or
statements, the performance of any of the covenants, or the fulfillment of any
of the conditions, herein contained.

                            (j) All proceedings taken in connection with the
authorization, issuance or sale of the Securities, as herein contemplated shall
be reasonably satisfactory in form and substance to the Underwriters and to
Underwriters' Counsel;

                            (k) On each Closing Date there shall have been duly
tendered to you for your account the appropriate number of Securities;

                            (l) No order suspending the sale of the Securities
in any Jurisdiction designated by you pursuant to Section 3(b) hereof shall have
been issued on either Closing Date, and no proceedings for that purpose shall
have been instituted or, to the knowledge of the Underwriters or the Company,
shall be contemplated;

                                       22
<PAGE>


                            (m) Prior to each Closing Date, there shall not have
been received or provided by the Company's independent public accountants or
attorneys, qualifications to the effect of either difficulties in furnishing
certifications as to material items including, without limitation, information
contained within the footnotes to the financial statements, or as affecting
matters incident to the issuance and sale of the Securities or as to corporate
proceedings or other matters;

                            (n) On or prior to the First Closing Date, the
Underwriters' Warrants, the Warrant Agreement and the Financial Consulting
Agreement shall have been executed and delivered by the Company, and the Lock-Up
Agreements shall have been executed and delivered by all of the Company's
officers, directors and existing shareholders, to the Underwriters.

                            (o) Additional Conditions Relating to Option
Closing. Upon exercise of the Over-Allotment Option, Maidstone's obligations to
purchase and pay for the Option Securities shall be subject to the following
conditions:

                                    (i) The Registration Statement shall remain
effective at the Option Closing Date, no stop order denying or suspending the
effectiveness thereof shall have been issued, and no proceedings for that or any
similar purpose shall have been instituted or shall be pending or, to your
knowledge or the knowledge of the Company, shall be contemplated by the
Commission, and all reasonable requests on the part of the Commission for
additional information shall have been complied with to the satisfaction of
Underwriters' Counsel.

                                    (ii) On the Option Closing Date there shall
have been delivered to you the signed opinion of Company Counsel, dated as of
the Option Closing Date, in form and substance satisfactory to Underwriters'
Counsel, which opinion shall be substantially the same in scope and substance as
the opinion furnished to you on the First Closing Date pursuant to Section 4(b),
except that such opinion, where appropriate, shall cover the Option Securities
rather than the Firm Securities. If the First Closing Date is the same as the
Option Closing Date, such opinions may be combined.

                                    (iii) All proceedings taken at or prior to
the Option Closing Date in connection with the sale and issuance of the Option
Securities shall be reasonably satisfactory in form and substance to you, and
you and Underwriters' Counsel shall have been furnished with all- such
documents, certificates and opinions as you may reasonably request in connection
with this transaction in order to evidence the accuracy and completeness of any
of the representations, warranties or statements of the Company or its
compliance with any of the covenants or conditions contained herein.

                                       23

<PAGE>

                                    (iv) On the Option Closing Date there shall
have been delivered you a letter in form and substance satisfactory to Maidstone
from Coopers & Lybrand, dated the Option Closing Date addressed to you,
confirming the information in their letter referred to in Section 4(f) as of the
date thereof and stating that, without any additional investigation required,
nothing has come to their attention during the period from the ending date of
their review referred to in such letter to a date not more than five banking
days prior to the Option Closing Date which would require any change in such
letter if it were required to be dated the Option Closing Date.

                  Any certificate signed by any officer of the Company and
delivered to the Underwriters or to Underwriters' Counsel shall be deemed a
representation and warranty by the Company to the Underwriter as to the
statements made therein. If any of the conditions herein provided for in this
Section shall not have been completely fulfilled as of the date indicated, this
Agreement and all obligations of the Underwriter under this Agreement may be
cancelled at, or at any time prior to, each Closing Date by your notifying the
Company of such cancellation in writing or by telecopy at or prior to the
applicable Closing Date. Any such cancellation shall be without liability of any
Underwriters to the Company, except as otherwise provided herein.

                  5. CONDITIONS TO THE OBLIGATIONS OF THE COMPANY. The
obligations of the Company to sell and deliver the Securities are subject to the
following conditions:

                            (a) Effective Registration Statement. The
Registration Statement shall have become effective not later than 6:00 p.m. New
York Time, on the date of this Agreement, or at such later time or on such later
date as the Company and you may agree in writing.

                            (b) No Stop Order. On the applicable Closing Date,
no stop order denying or suspending the effectiveness of the Registration
Statement shall have been issued under the Act or any proceedings therefor
initiated or threatened b I the Commission.

                            (c) Payment for Securities. On the applicable
Closing Date, you shall have made payment, for the account of the Underwriter,
of the aggregate Purchase Price for the Securities then being purchased by
certified or bank cashier's checks payable in next day funds to the order of the
Company.

If the conditions to the obligations of the Company provided by this Section 5
have been fulfilled on the First Closing Date but are not fulfilled after the
First Closing Date and prior to the Option Closing Date, then only the
obligation of the Company to sell and deliver the Option Securities upon
exercise of the Over-Allotment Option shall be affected.


                                       24
<PAGE>

                  6.       INDEMNIFICATION.

                            (a) Indemnification by the Company. As used in this
Agreement, the term "Liabilities" shall mean any and all losses, claims, damages
and liabilities, and actions and proceedings in respect thereof (including
without limitation all reasonable costs of defense and investigation and all
attorneys' fees) including without limitation those asserted by any party to
this Agreement against any other party to this Agreement. The Company hereby
indemnities and holds harmless the Underwriters and each person, if any, who
controls the Underwriters within the meaning of the Act, from and against all
Liabilities, to which the Underwriters or such controlling person may become
subject, under the Act or otherwise, insofar as such Liabilities arise out of or
are based upon: (i) any untrue statement or alleged untrue statement of any
material fact, in light of the circumstances in which it was made, contained in
(A) the Registration Statement or any amendment thereto, or the Prospectus or
any Preliminary Prospectus, or any amendment or supplement thereto, or (B) any
"blue sky" application or other document executed by the Company specifically
for that purpose, or based upon written information furnished by the Company,
filed in any state or other jurisdiction in order to qualify any or all of the
Securities under the securities laws thereof (any such application, document or
information being herein called a "Blue Sky Application"); or (ii) the omission
or alleged omission to state in the Registration Statement or any amendment
thereto, or the Prospectus or any Preliminary Prospectus, or any amendment or
supplement thereto, or in any Blue Sky Application, a material fact required to
be stated therein or necessary to make the statements therein, in light of the
circumstances in which it was made, not misleading; provided, however, that the
Company shall not be liable in any such case to the extent, but only to the
extent, that any such Liabilities arise out of or are based upon an untrue
statement or alleged untrue statement or omission or alleged omission (x) made
in reliance upon and in conformity with written information furnished to the
Company through you by or on behalf of the Underwriters specifically for use in
the preparation of the Registration Statement or any such amendment thereto, or
the Prospectus or any such Preliminary Prospectus, or any such amendment or
supplement thereto, or any such Blue Sky Application or (y) corrected by the
final Prospectus and the failure of the Underwriter to deliver the final
Prospectus. The foregoing indemnity shall be in addition to any other liability
which the Company may otherwise have.

                                       25

<PAGE>



                            (b) Indemnification by each Underwriter. The
Underwriters hereby indemnify and hold harmless the Company, each of its
directors, each nominee (if any) for director named in the Prospectus, each of
its officers who have signed the Registration Statement, and each person, if
any, who controls the Company within the meaning of the Act, from and against
all Liabilities to which the Company or any such director, nominee, officer or
controlling person may become subject under the Act or otherwise, insofar as
such Liabilities arise out of or are based upon (i) any untrue statement or
alleged untrue statement of any material fact contained in the Registration
Statement or any amendment thereto, or the Prospectus or any Preliminary
Prospectus, or any amendment or supplement thereto, or (ii) the omission or the
alleged omission to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading, in each case to the
extent, but only to the extent, that any such Liabilities arise out of or are
based upon an untrue statement or alleged untrue statement or omission or
alleged omission made in the Registration Statement or any amendment thereto, or
the Prospectus or any Preliminary Prospectus, or any amendment or supplement
thereto, in reliance upon and in conformity with written information furnished
to the Company through you, by or on behalf of such Underwriters, specifically
for use in the preparation thereof. In no event shall any Underwriters be liable
under this Section 6(b) for any amount in excess of the compensation received by
such Underwriters, in the form of underwriting discounts or otherwise, pursuant
to this Agreement or any other agreement contemplated hereby. The foregoing
indemnity shall be in addition to any other liability which any Underwriters may
otherwise have.

                            (c) Procedure. Promptly after receipt by an
indemnified party under this Section 6 of notice of the commencement of any
action, such indemnified party shall, if a claim in respect thereof is to be
made against the indemnifying party under this Section 6, notify in writing the
indemnifying party of the commencement thereof, but the omission so to notify
the indemnifying party shall not relieve it from any liability which it may have
to any indemnified party otherwise than under this Section 6 unless the rights
of the indemnifying party have been prejudiced by such omission or delay. In
case any such action is brought against any indemnified party and it notifies
the indemnifying party of the commencement thereof, the indemnifying party shall
be entitled to participate in and, to the extent that it may wish, jointly with
any other indemnifying party similarly notified, to assume the defense thereof,
subject to the provisions hereof, with counsel reasonably satisfactory to such
indemnified party, and after notice from the indemnifying party to such
indemnified party of its election so to assume the defense thereof, the
indemnifying party shall not be liable to such indemnified party under this
Section 6 for any legal or other expenses subsequently incurred by such
indemnified party in connection with the defense thereof other than reasonable
costs of investigation., The indemnified party shall have the right to employ
separate counsel in any such action and to participate in the defense thereof,
but the fees and expenses of such counsel shall not be at the expense of the
indemnifying party if the indemnifying party has assumed the defense of the
action with counsel reasonably satisfactory to the indemnified party; provided,
however, that the fees and expenses of such counsel shall be at the expense of
the indemnifying party if (i) the employment of such counsel has been
specifically authorized in writing by the indemnifying party, or (ii) the named
parties to any such action (including any impleaded parties) include both such
indemnified party and the indemnifying party and the indemnified party shall
have reasonably concluded that there may be legal defenses available to it which
are different from or in addition to those available to the indemnifying party
or that the indemnified and indemnifying party have conflicting interests which
would make it inappropriate for the same counsel to represent both of them (in
which case the indemnifying party shall have the right to assume the defense of
such action on behalf of the indemnified party, it being understood, however,
that the indemnifying party shall not, in connection with any one such action or
separate but substantially similar or related actions in the same jurisdiction
arising out of the same general allegations or circumstances, be liable for the
reasonable fees and expenses of more than one separate firm of attorneys). No
settlement of any action against an indemnified party shall be made without the
consent of the indemnified party, which shall not be unreasonably withheld in
light of all factors of importance to such indemnified party.


                                       26
<PAGE>


                  7. CONTRIBUTION. In order to provide for just and equitable
contribution under the Act in any case in which (a) any indemnified party makes
claims for indemnification pursuant to Section 6 but it is judicially determined
(by the entry of a final judgment or decree by a court of competent jurisdiction
and the expiration of time to appeal or the denial of the last right of appeal)
that such indemnification may not be enforced in such case, notwithstanding the
fact that the express provisions of Section 6 provide for indemnification in
such case, or (b) contribution under the Act may be required on the part of any
indemnified party, then such indemnified party and each indemnifying party (if
more than one) shall contribute to the aggregate Liabilities to which it may be
subject, in either such case (after contribution from others) in such
proportions that the Underwriters are responsible in the aggregate for the
portion of such Liabilities represented by the percentage that the underwriting
discount per Share and per Warrant appearing on the cover page of the Prospectus
bears to the public Offering price per Share and per Warrant appearing thereon,
and the Company shall be responsible for the remaining portion; provided,
however, that if such allocation is not permitted by applicable law, then the
relative fault of the Company, and the Underwriters in connection with the
statements or omissions which resulted in such Liabilities and other relevant
equitable considerations shall also be considered. The relative fault shall be
determined by reference to, among other things, whether in the case of an untrue
statement of material fact or the omission to state a material fact, such
statement or omission relates to information supplied by the Company, or the
Underwriters, and the parties' relative intent, knowledge, access to information
and opportunity to correct or prevent such untrue statement or omission. The
Company and the Underwriters agree that it would not be just and equitable if
the respective obligations of the Company, and the Underwriters to contribute
pursuant to this Section 7 were to be determined by pro rata or per capita
allocation of the aggregate Liabilities or by any other method of allocation
that does not take account of the equitable considerations referred to in the
first sentence of this Section 7. Moreover, the contribution of any Underwriters
shall not be in excess of the cash compensation received by such Underwriters,
in the form of underwriting discounts or otherwise, pursuant to this agreement
or any other agreement contemplated hereby. No person guilty of a fraudulent
misrepresentation (within the meaning of section I 1 (f) of the Act) shall be
entitled to contribution from any person who is not guilty of such fraudulent
misrepresentation. As used in this Section 7, the term "Company" shall include
any officer, director or person who controls the Company within the meaning of
section 15 of the Act. If the full amount of the contribution specified in this
Section 7 is not permitted by law, then each indemnified party and each person
who controls an indemnified party shall be entitled to contribution from each
indemnifying party to the full extent permitted by law. The foregoing
contribution agreement shall in no way affect the contribution liabilities of
any persons having liability under section I 1 of the Act other than the Company
and the Underwriters. No contribution shall be requested with regard to the
settlement of any matter from any party who did not consent to the settlement;
provided, however, that such consent shall not be unreasonably withheld in light
of all factors of importance to such party.

                                       27
<PAGE>

                  8.       COSTS AND EXPENSES.

                            (a) Certain Costs and Expenses. Whether or not this
Agreement becomes effective or the sale of the Securities to the Underwriters is
consummated, the Company shall pay all costs and expense incident to the
issuance, offering, sale and delivery of the Securities and the performance of
its obligations under this Agreement, including without limitation: (i) all fees
and expenses of the Company's legal counsel and accountants; (ii) all costs and
expenses incident to the preparation, printing, filing and distribution of the
Registration Statement (including the financial statements contained therein and
all exhibits and amendments thereto), each Preliminary Prospectus and the
Prospectus, each as amended or supplemented, this Agreement and the other
underwriting documents, as well as the other agreements and documents referred
to herein and the Blue Sky Memorandum; each in such quantities as you shall deem
necessary; (iii) all fees of NASD required in connection with the filing
required by NASD to be made by the Underwriter with respect to the Offering;
(iv) all expenses, including fees (but not in excess of the amount set forth in
Section 3(b)) and disbursements of Underwriters' Counsel in connection with the
qualification of the Securities under the "blue sky" laws which you shall
designate; (v) all costs and expenses of printing the respective certificates
representing the Shares and the Warrants; (vi) the expense of placing one or
more "tombstone" advertisements or promotional materials as directed by you
(provided, however, that the aggregate amount thereof shall not exceed $15,000)
and of offering memorabilia; (vii') all costs and expenses of the Company and
its employees associated with due diligence meetings and presentations
(including the payment for road show conference centers); (viii) any and all
taxes (including without limitation any transfer, franchise, capital stock or
other tax imposed by any jurisdiction) on sales of the Securities to the
Underwriters hereunder; and (xi) all costs and expenses incident to the
finishing of any amended Prospectus or any supplement to be attached to the
Prospectus as required by Sections 3(a) and 3(d), except as otherwise provided
by said Sections. In addition, the Company shall engage Underwriters' Counsel to
provide the Underwriters, at the Closing and quarterly thereafter, until such
time as the Common Stock is listed on the New York Stock Exchange or the
American Stock Exchange or quoted on NASDAQ/NMS, with a memorandum, setting
forth those states in which the Common Stock and the Warrants may be traded in
non-issuer transactions under the blue sky laws of the 50 states. The Company
shall pay such counsel a one-time fee of $12,500 at the Closing for such
opinions.

                            (b) Underwriters' Expense Allowance. In addition to
the expenses described in Section 8(a), the Company shall on the First Closing
Date pay to Maidstone the balance of a non-accountable expense allowance,
exclusive of the fees referred to in Section 3(b), an amount equal to three
percent (3%) of the gross proceeds received upon sale of the Firm Securities, of
which $55,000 has been paid to Maidstone prior to the date hereof. In the event
that the Over-Allotment Option is exercised, then the Company shall, on the
Option Closing Date, pay to Maidstone, based on the number of Option Securities
to be sold by the Company, an additional amount equal to three percent (3 %) of
the gross proceeds received upon sale of any of the Option Securities. In the
event that the transactions contemplated hereby fail to be consummated for any
reason, then Maidstone shall return to the Company that portion of $55,000
heretofore paid by the Company to the extent that it has not been utilized by
you in connection with the Offering for reasonable accountable out-of-pocket
expenses; provided, however, that if such failure is due to a breach by the
Company of any covenant, representation or warranty contained herein or because
any other condition to the Underwriters' obligations hereunder required to be
fulfilled by the Company is not fulfilled, then the Company shall be liable for
your reasonable accountable out-of-pocket expenses to the full extent thereof
(with credit given to the $55,000 paid).

                                       28
<PAGE>


                            (c) No Finders. No person is entitled either
directly or indirectly to compensation from the Company, the Underwriters or any
other person for services as a finder in connection with the Offering, and the
Company hereby indemnifies and hold harmless the Underwriters, and the
Underwriters hereby indemnify and hold harmless the Company from and against all
Liabilities, joint or several, to which the indemnified party may become subject
insofar as such Liabilities arise out of or are based upon the claim of any
person (other than an employee of the party claiming indemnity) or entity that
he or it is entitled to a finder's fee in connection with the Offering by reason
of such person's or entity's influence or prior contact with the indemnifying
party.

                  9. EFFECTIVE DATE. The Agreement shall become effective at
9:30 A.M. on the first full business day following the day on which the
Registration Statement becomes effective or at the time of the initial public
offering by you of the Stock, whichever is earlier. The time of the initial
public offering shall mean the time of release by you of the first newspaper
advertisement which is subsequently published with respect to the Securities, or
the time when the Securities are first generally offered by you to dealers by
letter or telegram, whichever shall first occur. You or the Company may prevent
this Agreement from becoming effective without liability at any party to any
other party, except as provided in Section 8, by giving the notice indicated
below in Section 13 before the time this Agreement becomes effective.

                  10.      TERMINATION.

                           (a)      Grounds for Termination.

                                    (i) This Agreement, except for Sections 6,
7, 8, 12, 13, 14 and 15, may be terminated at any time prior to the First
Closing Date, and the Over-Allotment Option, if exercised, may be cancelled at
any time prior to the Option Closing Date, by you if in your sole judgment it is
impracticable to offer for sale or to enforce contracts made by you for the
resale of the Securities agreed to be purchased hereunder, by reason of: (A) the
Company having sustained a material loss, whether or not insured, by reason of
fire, earthquake, flood, accident or other calamity, or from any labor dispute
or court or government action, order or decree; (B) trading in securities on the
New York Stock Exchange or the American Stock Exchange having been suspended or
limited; (C) material governmental restrictions having been imposed on trading
in securities generally which are not in force and effect on the date hereof;
(D) a banking moratorium having been declared by federal or New York State
authorities; (E) an outbreak or significant escalation of major international
hostilities or other national or international calamity having occurred; (F) the
passage by the Congress of the United States or by any state legislative body of
similar impact, of any act or measure, or the adoption of any orders, rules or
regulations by any governmental body or any authoritative accounting institute
or board, or any governmental executive, which is reasonably believed likely by
you to have a material adverse impact on the business, financial condition or
financial statements of the Company; (G) any material adverse change in the
financial or securities markets beyond normal fluctuations in the United States
having occurred since the date of this Agreement; or (H) any material adverse
change having occurred, since the respective dates for which information is
given in the Registration Statement and Prospectus, in the earnings, business,
prospects or condition (financial or otherwise) of the Company, whether or not
arising in the ordinary course of business.


                                       29

<PAGE>

                                    (ii) Maidstone shall have the right, in its
sole discretion, to terminate this Agreement, including without limitation, the
obligation to purchase the Firm Securities and the obligation to purchase the
Option Securities after the exercise of the OverAllotment Option, by notice
given to the Company prior to delivery and payment for all the Firm Securities
or the Option Securities, as the case may be, if any of the conditions
enumerated in Section 4 are not either fulfilled or waived by the Underwriters
on or before any Closing Date.

                                    (iii) Anything herein to the contrary
notwithstanding, if this Agreement shall not be carried out within the time
specified herein, or any extensions thereof granted by the Underwriters, by
reason of any failure on the part of the Company to perform any undertaking or
satisfy any condition of this Agreement by it to be performed or satisfied then,
in addition to the obligations assumed by the Company pursuant to Section 8(a)
hereof, the Underwriter shall provide the Company with, and the Company shall
pay, a statement of the Underwriters' accountable expenses.

                            (b) Notification. If you elect to prevent this
Agreement from becoming effective or to terminate this Agreement as provided by
this Section 10 or by Section 9, the Company shall be promptly notified by you,
by telephone or telegram, confirmed by letter.

                  11. UNDERWRITERS' WARRANTS. On the First Closing Date, the
Company shall issue and sell to you, for nominal consideration, and upon the
terms and conditions set forth in the form of Underwriters' Warrants filed as an
exhibit to the Registration Statement, a Warrant entitling you to purchase
150,000 Shares and/or 225,000 Warrants at an exercise price equal to 120% of the
initial public offering price per Share or Warrant, as the case may be,
exercisable for a period of four years commencing one year from the Effective
Date (the "Underwriters' Warrants"). The Underwriters' Warrants grant to the
holders thereof certain "piggyback" registration rights for a period of four
years, and demand registration rights for a period of four years, commencing one
year from the Effective Date with respect to the registration under the
Securities Act of the Securities issuable upon exercise thereof. In the event of
conflict in the terms of this Agreement and the Underwriters' Warrants, the
terms and conditions of the Underwriters' Warrants shall control.

                  12. REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE
DELIVERY. The respective indemnities, agreements, representations, warranties,
covenants and other statements of the Company and the Underwriter set forth in
Sections 3, 6, 7 and 8 of this Agreement shall remain in full force and effect
regardless of any investigation made by or on behalf of any other party, and
shall survive delivery of and payment for the Securities and the termination of
this Agreement. The Company hereby indemnities and holds harmless the
Underwriters from and against all Liabilities, joint or several, to which the
Underwriters may become subject insofar as such Liabilities arise out of or are
based upon the breach or failure of any of the provisions of Sections 3, 6, 7
and 8.


                                       30
<PAGE>



                  13. NOTICES. All communications hereunder shall be in writing
and, except as otherwise expressly provided herein, if sent to you, shall be
mailed, delivered or telegraphed and confirmed to you at Maidstone Financial,
Inc., 101 East 52nd Street, New York, New York 10022, with a copy sent to Jay M.
Kaplowitz, Esq., Gersten, Savage, Kaplowitz, Fredericks & Curtin, LLP, 101 East
52nd Street, New York, New York 10022; or if sent to the Company, shall be
mailed, delivered, or telegraphed and confirmed to it at Univec, Inc., 999
Franklin Avenue, Garden City, New York 11530, Attention: Joel Schoenfeld, with a
copy sent to Jack Becker, Esq., Snow Becker Krauss P.C., 605 Third Avenue, New
York, New York 10158-0125.

                  14. PARTIES IN INTEREST. This Agreement is made solely for the
benefit of the Underwriters, the Company, and, to the extent expressed, any
person controlling the Company or the Underwriters, as the case may be, and the
directors of the Company, nominees for directors of the Company (if any) named
in the Prospectus, officers of the Company who have signed the Registration
Statement, and their respective executors, administrators, successors and
assigns; and no other person shall acquire or have any right under or by virtue
of this Agreement. The term "successors and assigns" shall not include any
purchaser, as such, from an underwriter of the Securities.

                  15. CONSTRUCTION. This Agreement shall be governed by and
construed and enforced in accordance with the laws of the State of New York,
without giving effect to conflict of laws. The parties agree to submit
themselves to the jurisdiction of the courts of the State of New York or of the
United States of America for the Southern District of New York, which shall be
the sole tribunals in which any parties may institute and maintain a legal
proceeding against the other party arising from any dispute in this Agreement.
In the event either party initiates a legal proceeding in a jurisdiction other
than in the courts of the State of New York or of the United States of America
for the Southern District of New York, the other party may assert as a complete
defense and as a basis for dismissal of such legal proceeding that the legal
proceeding was not initiated and maintained in the courts of the State of New
York or of the United States of America for the Southern District of New York,
in accordance with the provisions of this Section 15.

                  16. ENTIRE AGREEMENT. This Agreement, the Underwriter's
Warrants, and the Financial Consulting Agreement contain the entire agreement
between the parties hereto in connection with the subject matter hereof and
thereof.

                  17. COUNTERPARTS. This Agreement may be executed in two or
more counterpart copies, each of which shall be deemed and an original but all
of which together shall constitute one and the same instrument.


                                       31
<PAGE>

                  18. DEFAULT BY AN UNDERWRITER.

                            (a) If any Underwriter or Underwriters shall default
in its or their obligations to purchase the Stock and Warrants hereunder, and if
the number of shares and Warrants with respect to which such default relates
does not exceed in the aggregate 10% of the number of shares of Stock and
Warrants which all Underwriters have agreed to purchase hereunder, then such
Stock and Warrants to which the default relates shall be purchased by the
nondefaulting Underwriters in proportion to their respective commitments
hereunder.

                            (b) In the event that such default relates to more
than 10% of the number of shares of Stock and Warrants, you may in your
discretion arrange for yourself or for another party or parties to purchase such
Stock and Warrants to which such default relates on the terms contained herein.
if within one (1) business day after such default relating to more than 1 0 % of
the number of shares of Stock and Warrants, the Representative or the
Underwriters satisfactory to you do not elect to purchase the Stock and Warrants
which the defaulting Underwriter agreed but failed to purchase, then the Company
shall be entitled to a further period of one (1) business day within which to
procure another party or parties satisfactory to you to purchase said Stock and
Warrants on such terms. In the event that neither you nor the Company arrange
for the purchase of the Stock and Warrants to which a default relates as
provided in this Section 18, this Agreement may be terminated by you or the
Company (except as provided in Section 6 and Section 8(a) hereof) or the several
Underwriters, but nothing herein shall relieve a defaulting Underwriter of its
liability, if any, to the other several Underwriters and to the Company for
damages occasioned by its default hereunder.

                            (c) In the event that the Stock and Warrants to
which the default relates is to be purchased by the non-defaulting Underwriters,
or is to be purchased by another party or parties as aforesaid, you or the
Company shall have the right to postpone the Closing Date for a reasonable
period but not in any event exceeding five (5) business days, in order to effect
whatever changes may thereby be made necessary in the Registration Statement or
the Prospectus or in any other documents and arrangements, and the Company
agrees to file promptly any amendment to the Registration Statement or the
Prospectus which in the opinion of counsel for the Underwriters may thereby be
made necessary. The term "Underwriter" as used in this Agreement shall include
any party substituted under this Section 18 with like effect as if it had
originally been a party to this Agreement with respect to such Stock.

                                       32

<PAGE>


                  If the foregoing is in accordance with your understanding of
our agreement, kindly sign and return this Agreement, whereupon it will become a
binding agreement between the Company and the Underwriters in accordance with
its terms.

                                          Very truly yours,

                                          UNIVEC, INC.



                                          By:
                                              ----------------------------------
                                          Name:
                                          Title:


Accepted as of the date
first above written:
New York, New York

MAIDSTONE FINANCIAL, INC., as Representative
of the


By:
   ---------------------------------
Name:
Title:




                                       33

<PAGE>



                                    EXHIBIT A


Name                                Number of Shares and/or Warrants













                                       34






<PAGE>

                    ADVISORY AND INVESTMENT BANKING AGREEMENT



                  This Agreement is made and entered into as of the __ day of
____, 1997 by and between Maidstone Financial, Inc., a New York
corporation ("Maidstone"), and Univec, Inc., a New York corporation
(the "Company").

                  In consideration of the mutual promises made herein and for
other good and valuable consideration, the receipt and sufficiency of which is
hereby acknowledged, the parties hereto agree as follows:

                  1.  Purpose:  The Company hereby engages Maidstone for the
term specified in Paragraph 2 hereof to render consulting advice to
the Company as an investment banker relating to financial and similar
matters upon the terms and conditions set forth herein.

                  2.  Term:  Except as otherwise specified in paragraph 4
hereof, this Agreement shall be effective from ____________________, 1997 to
_________________, 1999.

                  3.  Duties of Maidstone:  During the term of this Agreement,
Maidstone shall seek out Transactions (as hereinafter defined) on
behalf of the Company and shall furnish advice to the Company in
connection with any such Transactions.
<PAGE>

                  4. Compensation: In consideration for the services rendered by
Maidstone to the Company pursuant to this Agreement (and in addition to the
expenses provided for in Paragraph 5 hereof), the Company shall compensate
Maidstone as follows:

                     (a) The Company shall pay Maidstone a fee of $4,000 per
month during the term of this Agreement. The sum of $96,000 shall be payable in
full on the date of this Agreement;

                     (b) In the event that any Transaction (as hereinafter
defined) occurs during the term of this Agreement or one year thereafter, the
Company shall pay fees to Maidstone as follows:


        Consideration                                   Fee
        -------------                                   ---
  $    - 0 - to $  500,000                      Minimum fee of $25,000

  $  500,000 to $5,000,000                      5% of Consideration

  $5,000,000 or more                            $250,000 plus 1% of the
                                                Consideration in excess of
                                                $5,000,000


                  For the purposes of this Agreement, "Consideration" shall mean
the total market value on the day of the closing of stock, cash, assets and all
other property (real or personal) exchanged or received, directly or indirectly
by the Company or any of its security holders in connection with any
Transaction. Any co-broker retained by Maidstone shall be paid by Maidstone.

                  For the purposes of the Agreement, a "Transaction" shall mean
(a) any transaction originated by Maidstone, other than in the ordinary course
of trade or business of the Company, whereby, directly or indirectly, control of
or a material interest in the Company or any of its businesses or any of their

                                       -2-
<PAGE>

respective assets, is transferred for Consideration, (b) any transaction
originated by Maidstone whereby the Company acquires any other company or the
assets of any other company or an interest in any other company (an
"Acquisition") or (c) any sale or Acquisition in connection with which the
Company engages an investment banker other than Maidstone and pays such
investment banker a fee in respect of such Transaction.

                  In the event Maidstone originates a line of credit with a
lender, the Company and Maidstone will mutually agree on a satisfactory fee and
the terms of payment of such fee; provided, however, that in the event the
Company is introduced to a corporate partner by Maidstone in connection with a
merger, acquisition or financing and a credit line develops directly as a result
of the introduction, the appropriate fee shall be the amount set forth in the
schedule above. In the event Maidstone introduces the Company to a joint venture
partner or customer and sales develop as a result of the introduction, the
Company agrees to pay a fee of five percent (5%) of total sales generated
directly from this introduction during the first two years following the date of
the first sale. Total sales shall mean cash receipts less any applicable
refunds, returns, allowances, credits and shipping charges and monies paid by
the Company by way of settlement or judgment arising out of claims made by or
threatened against the Company. Commission payments shall be paid on the 15th
day of each month following the receipt of customers' payment. In the event any
adjustments are made to the total sales after the commission has been paid, the

                                      -3-
<PAGE>

Company shall be entitled to an appropriate refund or credit against future
payments under this Agreement. All fees to be paid pursuant to this Agreement,
except as otherwise specified, are due and payable to Maidstone in cash at the
closing or closings of any transaction specified in Paragraph 4 hereof. In the
event that this Agreement shall not be renewed or if terminated for any reason,
notwithstanding any such non-renewal or termination, Maidstone shall be entitled
to a full fee as provided under Paragraphs 4 and 5 hereof, for any transaction
for which the discussions were initiated during the term of this Agreement and
which is consummated within a period of twelve months after non-renewal or
termination of this Agreement.

                  5. Expenses of Maidstone: In addition to the fees payable
hereunder, and regardless of whether any transaction set forth in Paragraph 4
hereof is proposed or consummated the Company shall reimburse Maidstone for all
fees and disbursements of Maidstone's counsel and Maidstone's travel and
out-of-pocket expenses incurred in connection with the services performed by
Maidstone pursuant to this Agreement, including without limitation, hotels, food
and associated expenses and long-distance telephone calls.

                  6.   Liability of Maidstone:

                     (1) The Company acknowledges that all opinions and advice
(written or oral) given by Maidstone to the Company in connection with
Maidstone's engagement are intended solely for the benefit and use of the

                                       -4-
<PAGE>

Company in considering the transaction to which they relate, and the Company
agrees that no person or entity other than the Company shall be entitled to make
use of or rely upon the advice of Maidstone to be given hereunder, and no such
opinion or advice shall be used for any other purpose or reproduced,
disseminated, quoted or referred to at any time, in any manner or for any
purpose, nor may the Company make any public references to Maidstone, or use
Maidstone's name in any annual reports or any other reports or releases of the
Company without Maidstone's prior written consent.

                     (2) The Company acknowledges that Maidstone makes no
commitment whatsoever as to making a market in the Company's securities or to
recommending or advising its clients to purchase the Company's securities.
Research reports or corporate finance reports that may be prepared by Maidstone
will, when and if prepared, be done solely on the merits or judgment of analysis
of Maidstone or any senior corporate finance personnel of Maidstone.

                  7. Maidstone's Services to Others: The Company acknowledges
that Maidstone's or its affiliates are in the business of providing financial
services and consulting advice to others. Nothing herein contained shall be
construed to limit or restrict Maidstone in conducting such business with
respect to others, or in rendering such advice to others.

                  8.   Company Information:

                                       -5-
<PAGE>

                     (a) The Company recognizes and confirms that, in advising
the Company and in fulfilling its engagement hereunder, Maidstone will use and
rely on data, material and other information furnished to Maidstone by the
Company. The Company acknowledges and agrees that in performing its services
under this engagement, Maidstone may rely upon the data, material and other
information supplied by the Company without independently verifying the
accuracy, completeness or veracity of same.

                     (b) Except as contemplated by the terms hereof or as
required by applicable law, Maidstone shall keep confidential all material
non-public information provided to it by the Company, and shall not disclose
such information to any third party, other than such of its employees and
advisors as Maidstone determines to have a need to know.

                  9.  Indemnification:

                     a. The Company shall indemnify and hold Maidstone harmless
against any and all liabilities, claims, lawsuits, including any and all awards
and/or judgments to which it may become subject under the Securities Act of
1933, as amended (the "1933 Act"), the Securities Exchange Act of 1934, as
amended (the "Act") or any other federal or state statute, at common law or
otherwise, insofar as said liabilities, claims and lawsuits (including awards
and/or judgments) arise out of or are in connection with the services rendered

                                       -6-
<PAGE>

by Maidstone or any transactions in connection with this Agreement, except for
any liabilities, claims and lawsuits (including awards and/or judgments),
arising out of acts or omissions of Maidstone. In addition, the Company shall
also indemnify and hold Maidstone harmless against any and all costs and
expenses, including reasonable counsel fees, incurred or relating to the
foregoing.

                     Maidstone shall give the Company prompt notice of any such
liability, claim or lawsuit which Maidstone contends is the subject matter of
the Company's indemnification and the Company thereupon shall be granted the
right to take any and all necessary and proper action, at its sole cost and
expense, with respect to such liability, claim and lawsuit, including the right
to settle, compromise and dispose of such liability, claim or lawsuit, excepting
therefrom any and all proceedings or hearings before any regulatory bodies
and/or authorities.

                     Maidstone shall indemnify and hold the Company harmless
against any and all liabilities, claims and lawsuits, including any and all
awards and/or judgments to which it may become subject under the 1933 Act, the
Act or any other federal or state statute, at common law or otherwise, insofar
as said liabilities, claims and lawsuits (including awards and/or judgments)
arise out of or are based upon any untrue statement or alleged untrue statement
of a material fact required to be stated or necessary to make the statement
therein, not misleading, which statement or omission was made in reliance upon
information furnished in writing to the Company by or on behalf of Maidstone for

                                       -7-
<PAGE>

inclusion in any registration statement or prospectus or any amendment or
supplement thereto in connection with any transaction to which this Agreement
applies. In addition, Maidstone shall also indemnify and hold the Company
harmless against any and all costs and expenses, including reasonable counsel
fees, incurred or relating to the foregoing.

                     The Company shall give to Maidstone prompt notice of any
such liability, claim or lawsuit which the Company contends is the subject
matter of Maidstone's indemnification and Maidstone thereupon shall be granted
the right to a take any and all necessary and proper action, at its sole cost
and expense, with respect to such liability, claim and lawsuit, including the
right to settle, compromise or dispose of such liability, claim or lawsuit,
excepting therefrom any and all proceedings or hearings before any regulatory
bodies and/or authorities.

                     b. In order to provide for just and equitable contribution
under the Act in any case in which (i) any person entitled to indemnification
under this Section 9 makes claim for indemnification pursuant hereto but it is
judicially determined (by the entry of a final judgment or decree by a court of
competent jurisdiction and the expiration of time to appeal or the denial of the
last right of appeal) that such indemnification may not be enforced in such case
notwithstanding the fact that this Section 10 provides for indemnification in
such case, or (ii) contribution under the Act may be required on the part of any
such person in circumstances for which indemnification is provided under this

                                       -8-
<PAGE>

Section 10, then, and in each such case, the Company and Maidstone shall
contribute to the aggregate losses, claims, damages or liabilities to which they
may be subject (after any contribution from others) in such proportion taking
into consideration the relative benefits received by each party from the
offering covered by the prospectus with respect to any transactions in
connection with this Agreement (taking into account the portion of the proceeds
of the offering realized by each), the parties' relative knowledge and access to
information concerning the matter with respect to which the claim was assessed,
the opportunity to correct and prevent any statement or omission and other
equitable considerations appropriate under the circumstances; provided, however,
that notwithstanding the above in no event shall Maidstone be required to
contribute any amount in excess of 10% of the public offering price of any
securities to which such Prospectus applies; and provided, that, in any such
case, no person guilty of a fraudulent misrepresentation (within the meaning of
Section 11(f) of the Act) shall be entitled to contribution from any person who
was not guilty of such fraudulent misrepresentation.

                     Within fifteen (15) days after receipt by any party to this
Agreement (or its representative) of notice of the commencement of any action,
suit or proceeding, such party will, if a claim for contribution in respect
thereof is to be made against another party (the "Contributing Party"), notify
the Contributing Party of the commencement thereof, but the omission so to
notify the Contributing Party will not relieve it from any liability which it

                                       -9-
<PAGE>

may have to any other party other than for contribution hereunder. In case any
such action, suit or proceeding is brought against any party, and such party
notifies a Contributing Party or his or its representative of the commencement
thereof within the aforesaid fifteen (15) days, the Contributing Party will be
entitled to participate therein with the notifying party and any other
Contributing Party similarly notified. Any such Contributing Party shall not be
liable to any party seeking contribution on account of any settlement of any
claim, action or proceeding effected by such party seeking contribution without
the written consent of the Contributing Party. The indemnification provisions
contained in this Section 10 are in addition to any other rights or remedies
which either party hereto may have with respect to the other or hereunder.

                  10. Maidstone an Independent Contractor : Maidstone shall
perform its services hereunder as an independent contractor and not as an
employee of the Company or an affiliate thereof. It is expressly understood and
agreed to by the parties hereto that Maidstone shall have no authority to act
for, represent or bind the Company or any affiliate thereof in any manner,
except as may be agreed to expressly by the Company in writing from time to
time.

                                      -10-
<PAGE>

                  11.  Miscellaneous:

                     (1) This Agreement between the Company and Maidstone
constitutes the entire agreement and understanding of the parties hereto, and
supersedes any and all previous agreements and understandings, whether oral or
written, between the parties with respect to the matters set forth herein.

                     (2) Any notice or communication permitted or required
hereunder shall be in writing and shall be deemed sufficiently given if
hand-delivered or sent (i) postage prepaid by registered mail, return receipt
requested, or (ii) by facsimile, to the respective parties as set forth below,
or to such other address as either party may notify the other in writing:

         If to the Company, to:           Univec, Inc.
                                          999 Franklin Avenue
                                          Garden City, New York 11530

         with a copy to:                  Jack Becker
                                          Snow Becker Krauss P.C.
                                          605 Third Avenue
                                          New York, New York 10158-0125

         If to Maidstone, to:             Maidstone Group Inc.
                                          101 East 52nd Street
                                          New York, New York 10022

         with a copy to:                  JAY M. KAPLOWITZ
                                          Gersten, Savage, Kaplowitz,
                                          Fredericks & Curtin, LLP
                                          101 East 52nd Street
                                          New York, New York  10022

                     (3) This Agreement shall be binding upon and inure to the
benefit of each of the parties hereto and their respective successors, legal
representatives and assigns.

                     (4) This Agreement may be executed in any number of
counterparts, each of which together shall constitute one and the same original
document.

                                      -11-
<PAGE>

                     (5) No provision of this Agreement may be amended, modified
or waived, except in a writing signed by all of the parties hereto.

                           (6)  This Agreement shall be construed in accordance
with and governed by the laws of the State of New York, without giving effect to
conflict of law principles. The parties hereby agree that any dispute which may
arise between them arising out of or in connection with this Agreement shall be
adjudicated before a court located in New York City, and they hereby submit to
the exclusive jurisdiction of the courts of the State of New York located in New
York, New York and of the federal courts in the Southern District of New York
with respect to any action or legal proceeding commenced by any party, and
irrevocably waive any objection they now or hereafter may have respecting the
venue of any such action or proceeding brought in such a court or respecting the
fact that such court is an inconvenient forum, relating to or arising out of
this Agreement, and consent to the service of process in any such action or
legal proceeding by means of registered or certified mail, return receipt
requested, in care of the address set forth in Paragraph 11(b) hereof.

                                      -12-
<PAGE>

                 IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be duly executed, as of the day and year first above written.

                                 MAIDSTONE FINANCIAL, INC.




                                 By:________________________________


                                 UNIVEC, INC.


                                 By:________________________________








                                      -13-



<PAGE>

                          CERTIFICATE OF INCORPORATION

                                       OF

                                  UNIVEC, INC.


     1. The name of the corporation is UNIVEC, Inc. (the "Corporation").

     2. The address of the registered  office of the  Corporation in Delaware is
1013 Centre Road, City of Wilmington,  County of New Castle, Delaware 19805. The
name of the  corporation's  registered  agent  at that  address  is  Corporation
Service Company.

     3. The  purpose  of the  Corporation  is to  engage  in any  lawful  act or
activity for which  corporations may be organized under the General  Corporation
Law of the State of Delaware (the "General Corporation Law").

     4. The total number of shares of capital stock which the Corporation  shall
have authority to issue is 30,000,000 shares, of which 5,000,000 shares shall be
designated as preferred stock,  each having a par value of $0.001 per share (the
"Preferred  Stock"),  and 25,000,000 shares shall be designated as common stock,
each having a par value of $0.001 per share (the "Common  Stock").  The Board of
Directors  of the  Corporation  is hereby  expressly  vested with  authority  by
resolution or resolutions to authorize the issuance of shares of Preferred Stock
in one or more  series,  from time to time,  with each such  series to have such
designations,  powers,  preferences,  and relative,  participating,  optional or
other special rights, and qualifications,  limitations or restrictions  thereof,
as shall be stated and expressed in the resolution or resolutions  providing for
the issue of such series  adopted by the Board of Directors of the  Corporation,
subject  to the  limitations  prescribed  by  law  and in  accordance  with  the
provisions  hereof. The authority of the Board of Directors with respect to each
such series shall include, but not be limited to, the determination or fixing of
the following:

          (i) The distinctive  designation and number of shares  comprising such
     series,  which number may (except where otherwise  provided by the Board of
     Directors in creating such series) be increased or decreased (but not below
     the number of shares then  outstanding) from time to time by like action of
     the Board of Directors;

          (ii) The dividend rate of such series,  the  conditions  and time upon
     which such  dividends  shall be payable,  the relation that such  dividends
     shall bear to the dividends  payable on any other class or classes of stock
     or series thereof,  or any other series of the same class, and whether such
     dividends shall be cumulative or non-cumulative;

          (iii) The  conditions  upon which the shares of such  series  shall be
     subject to redemption by the  Corporation  and the times,  prices and other
     terms and provisions upon which the shares of the series may be redeemed;

<PAGE>

          (iv)  Whether or not the shares of the series  shall be subject to the
     operation of a retirement  or sinking fund to be applied to the purchase or
     redemption  of such  shares  and,  if such  retirement  or sinking  fund be
     established,  the  annual  amount  thereof  and the  terms  and  provisions
     relative to the operation thereof;

          (v) Whether or not the shares of the series shall be convertible  into
     or exchangeable  for shares of any other class or classes,  with or without
     par value,  or of any other series of the same class,  and, if provision is
     made for conversion or exchange, the times, prices, rates, adjustments, and
     other terms and conditions of such conversion or exchange;

          (vi) Whether or not the shares of the series shall have voting rights,
     in addition to the voting rights  provided by law, and, if so, the terms of
     such voting rights;

          (vii) The rights of the shares of the series upon the  distribution of
     the assets of the Corporation in the event of the liquidation, dissolution,
     or  winding up of the  affairs of the  Corporation,  whether  voluntary  or
     involuntary; and

          (viii)  Any other  powers,  preferences  and  relative  participating,
     optional  or other  special  rights,  and  qualifications,  limitations  or
     restrictions  thereof,  of the  shares  of such  series,  as the  Board  of
     Directors  may deem  advisable  and as shall not be  inconsistent  with the
     provisions of the Certificate of Incorporation.

     The  holders  of  shares of the  Preferred  Stock of each  series  shall be
entitled to receive,  when and as  declared  by the Board of  Directors,  out of
funds legally available for the payment of dividends,  dividends (if any) at the
rates fixed by the Board of Directors for such series,  and no more,  before any
cash  dividends  shall be declared and paid,  or set apart for  payment,  on the
Common Stock with respect to the same dividend period.

     The  holders  of  shares of the  Preferred  Stock of each  series  shall be
entitled upon  liquidation or dissolution or upon the distribution of the assets
of the  Corporation  to  such  preferences  as  provided  in the  resolution  or
resolutions  creating such series of Preferred  Stock,  and no more,  before any
distribution  of the assets of the  Corporation  shall be made to the holders of
the Common Stock.  Whenever the holders of shares of the  Preferred  Stock shall
have been paid the full amounts to which they shall be entitled,  the holders of
the  Common  Stock  shall be  entitled  to share  ratably  in all  assets of the
Corporation remaining.

     5. The name of the sole  incorporator  is Mark  Orenstein,  c/o Snow Becker
Krauss P.C. 605 Third Avenue, 25th Floor, New York, New York 10158-0125.

     6. The election of the Board of Directors need not be by written ballot.

                                     - 2 -

<PAGE>

     7. The  Corporation  shall  indemnify,  and hold  harmless,  to the fullest
extent  permitted by Section 145 of the General  Corporate  Law, as amended from
time to time ("Section  145"), any person who was or is made or is threatened to
be made a party or is  otherwise  involved  in any action,  suit or  proceeding,
whether civil, criminal,  administrative or investigative (each, a "proceeding")
by  reason  of  the  fact  that  he,  or a  person  for  whom  he is  the  legal
representative,  is or was a director or officer of the  Corporation  (each,  an
"Eligible  Indemnitee"),  against all  liability  and loss suffered and expenses
reasonably incurred by such person in connection with a proceeding  initiated by
him  only if the  proceeding  was  authorized  by the  Board  of  Directors.  In
addition, the Corporation may indemnify and hold harmless, to the fullest extent
permitted by Section  145, any other person who was or is made or is  threatened
to be made a party or is otherwise  involved in any  proceeding by reason of the
fact  that he,  or an  officer,  director  or a person  for whom he is the legal
representative,  is or was an employee or agent of the  Corporation or is or was
serving at the request of the  Corporation as a director,  officer,  employee or
agent  of  another  corporation  or  of a  partnership,  joint  venture,  trust,
enterprise or  non-profit  entity (each,  a "Permitted  Indemnitee"),  including
service with respect to employee  benefit plans,  against all liability and loss
suffered and expenses reasonably incurred by such person in connection with such
proceeding.  If the Corporation  elects to indemnify a Permitted  Indemnitee for
liability and loss suffered and expenses  reasonably  incurred by such person in
connection  with a proceeding,  its obligation to indemnify such person shall be
reduced  by the  amount of any  indemnity  payments  received  by the  Permitted
Indemnitee  from any  other  corporation,  partnership,  joint  venture,  trust,
enterprise or  non-profit  entity on behalf of whom he was acting at the request
of the  Corporation  and as a  result  of  which  he  became  a party  to or was
otherwise became involved in the proceeding.

     The Corporation shall pay the expenses incurred by any Eligible  Indemnitee
in investigating or defending any proceeding in advance of its final disposition
(unless the  proceeding is of a nature for which  advancement of expenses is not
permitted  by Section  145),  but only upon receipt of an  undertaking  from the
Eligible Indemnitee to repay all amounts advanced if it is ultimately determined
that the Eligible  Indemnitee  is not entitled to be  indemnified  under Section
145,  this  Article or  otherwise.  In  addition,  the  Corporation  may pay the
expenses  incurred by any Permitted  Indemnitee  in defending any  proceeding in
advance of its final disposition (unless the proceeding is of a nature for which
advancement  of expenses is not permitted by Section 145), but only upon receipt
of an undertaking from the Permitted Indemnitee to repay all amounts advanced if
it is ultimately  determined that the Permitted Indemnitee is not entitled to be
indemnified under Section 145, this Article or otherwise.

     If a claim for indemnification or payment of expenses under this Article is
not paid in full  within  sixty days  after a written  claim  therefor  has been
received by the Corporation, the claimant may file suit to recover the amount of
such claim and, if successful in whole or in part,  shall be entitled to be paid
the expenses of  prosecuting  such claim.  In any such action,  the  Corporation
shall have the burden of  proving  that the  claimant  was not  entitled  to the
requested indemnification or payment of expenses under Section 145, this Article
or otherwise.

                                     - 3 -

<PAGE>

     The rights  conferred on any person by this Article  shall not be exclusive
of any other rights which such person may have or  hereafter  acquire  under any
statute,  any provision of the By-laws of this Corporation,  any agreement,  any
vote of stockholders or disinterested directors or otherwise.

     The Corporation shall have the power to purchase and maintain  insurance on
behalf of any Eligible Indemnitee or Permitted  Indemnitee against any liability
asserted against him and incurred by him for actions undertaken on behalf of the
Corporation in his capacity,  or arising out of his status with the Corporation,
whether or not the Corporation would have had the power to indemnify him against
such liability under this Article or otherwise.

     Any amendment or repeal of the  foregoing  provisions of this Article shall
not adversely affect any right or protection  hereunder of any person in respect
of  any  act or  omission  occurring  prior  to  the  time  of  such  repeal  or
modification.

     8. No  director  shall  be  personally  liable  to the  Corporation  or its
stockholders for monetary damages for breach of fiduciary duty as a director for
any act or omission occurring subsequent to the date when this provision becomes
effective, except that he may be liable (i) for breach of the director's duty of
loyalty to the Corporation or its  stockholders,  (ii) for acts or omissions not
in good faith or which involve intentional  misconduct or a knowing violation of
law, (iii) under Section 174 of the General  Corporation Law, as the same exists
or hereafter may be amended, or (iv) for any transaction from which the director
derived an improper personal benefit.  If the General  Corporation Law hereafter
is amended to authorize the further  elimination  or limitation of the liability
of directors,  then the liability of a director of the Corporation,  in addition
to the limitation of personal liability provided herein, shall be limited to the
fullest extent  permitted by the amended General  Corporation law. Any repeal or
modification of this Article by the  stockholders  of the  Corporation  shall be
prospective  only, and shall not adversely affect any limitation on the personal
liability of a director of the  Corporation  existing at the time of such repeal
or modification.

     9.  Whenever  a  compromise  or  arrangement   is  proposed   between  this
Corporation  and  its  creditors  or any  class  of  them  and/or  between  this
Corporation  and its  stockholders  or any class of them, any court of equitable
jurisdiction  within the State of Delaware may, on the  application in a summary
way of this  Corporation  or of any  creditor or  stockholder  thereof or on the
application of any receiver or receivers  appointed for this  Corporation  under
the provisions of Section 291 of Title 8 of the Delaware Code on the application
of trustees in  dissolution  or any  receiver or  receivers  appointed  for this
Corporation under the provisions of Section 279 of Title 8 of the Delaware Code,
order  a  meeting  of  the  creditors  or  class  of  creditors,  and/or  of the
stockholders or class of stockholders of this  Corporation,  as the case may be,
to be summoned in such manner as the said court directs. If a majority in number
representing  three-fourths  in value of the  creditors  or class of  creditors,
and/or the  stockholders or class of stockholders  of this  Corporation,  as the
case may be, agree to any compromise or arrangement and to any reorganization of
this  Corporation  as consequence of such  compromise or  arrangement,  the said
compromise or arrangement and the said reorganization shall, if

                                     - 4 -

<PAGE>

sanctioned by the court to which the said  application has been made, be binding
on all the creditors or class of creditors,  and/or on all the  stockholders  or
class of stockholders, of this Corporation, as the case may be, and also on this
Corporation.

     10. All the powers of this Corporation, insofar as the same may be lawfully
vested by this  Certificate  of  Incorporation  in the Board of  Directors,  are
hereby conferred upon the board of directors of this Corporation. In furtherance
and not in limitation of that power, the Board of Directors shall have the power
to make,  adopt,  alter,  amend and  repeal  from time to time  By-laws  of this
Corporation,  subject  to the right of the  stockholders  entitled  to vote with
respect thereto to adopt,  alter,  amend and repeal By-laws made by the Board of
Directors.


Dated:  October 7, 1996                 /s/  Mark Orenstein
                                        ---------------------------
                                             Mark Orenstein
                                             Sole Incorporator

                                     - 5 -

<PAGE>

                                  UNIVEC, INC.

                           Certificate of Designation
               Series A 8% Cumulative Convertible Preferred Stock

                             Pursuant to Section 151
                                     Of The
                General Corporation Law of the State of Delaware


     UNIVEC,  Inc.,  a  corporation  organized  and  existing  under the General
Corporation Law of the State of Delaware (hereinafter called the "Corporation"),
DOES HEREBY  CERTIFY  that,  by unanimous  written  consent in lieu of a meeting
dated as of October 7, 1996,  the following  resolution  was duly adopted by the
Board of  Directors  of the  Corporation  pursuant to Section 151 of the General
Corporation Law of the State of Delaware:

          RESOLVED,  that  pursuant  to the  authority  vested  in the  Board of
     Directors of the Corporation by Article 4 of the Corporation's  Certificate
     of Incorporation, a series of Preferred Stock of the Corporation be, and it
     hereby is, created out of the authorized but unissued shares of the capital
     stock  of  the  Corporation,  such  series  to be  designated  Series  A 8%
     Cumulative Convertible Preferred Stock (the "Series A Preferred Stock"), to
     consist  of 2,500  shares,  par  value  $0.001  per  share,  of  which  the
     preferences  and  relative  and  other  rights,  and  the   qualifications,
     limitations  or  restrictions  thereof,  shall be (in addition to those set
     forth in the Corporation's Certificate of Incorporation) as follows:

     1. Dividend Rights.

          1.1 The  holders  of  shares  of  Series A  Preferred  Stock  shall be
entitled to receive,  when and as declared by the Board of  Directors,  but only
out of  funds  legally  available  for  payment  of  dividends,  (i)  cumulative
dividends  at the rate of $80 per  share  per annum  (the  "Series  A  Preferred
Dividend"),  which  dividends  shall accrue and be  cumulative  from the date of
issuance,  payable at the option of the Company in cash, in additional shares of
Series A Preferred  Stock,  or a combination  thereof.  The number of additional
shares  of  Series A  Preferred  Stock to be issued  in  payment  of  cumulative
dividends shall be determined based upon the liquidation  preference ($1,000) of
the Series A Preferred Stock, so that .08 of a share of Series A Preferred Stock
would be issued for each $80 of cumulative cash

<PAGE>

dividends.

          1.2  Dividends  shall  cease to accrue on shares of Series A Preferred
Stock that are redeemed  pursuant to Paragraph 4 hereof as of the date fixed for
such redemption.

          1.3 So long as any shares of Series A Preferred Stock are outstanding,
no dividends shall be paid or declared and set apart for payment,  nor shall any
other distribution be made, on the Common Stock, or on any other stock junior to
the Series A Preferred  Stock as to dividends  (other than dividends  payable in
Common  Stock or other  stock  junior to  Series A  Preferred  Stock  both as to
dividends  and  distribution  upon  liquidation),  unless  dividends on Series A
Preferred Stock for the current  dividend  period and all past dividend  periods
shall have been paid or declared and set apart for payment.

          1.4 So long as any shares of Series A Preferred Stock are outstanding,
no shares of any stock on a parity  with or junior to Series A  Preferred  Stock
shall be purchased,  redeemed or otherwise acquired by the Corporation or by any
subsidiary, nor shall any funds be set aside or made available for any purchase,
retirement  or sinking  fund for the  purchase or  redemption  of any stock on a
parity  with or junior to Series A  Preferred  Stock,  unless  dividends  on the
Series A Preferred  Stock for the current  dividend period and all past dividend
periods shall have been paid or declared and set apart for payment.

          1.5 Subject to the foregoing  provisions,  such dividends  (payable in
cash, property or stock junior to Series A Preferred Stock) as may be determined
by the  Board of  Directors  may be  declared  and paid from time to time on the
shares of any stock  junior to Series A  Preferred  Stock,  without any right of
participation therein by the holders of Series A Preferred Stock.

          1.6 Accrued and unpaid dividends on Series A Preferred Stock shall not
bear interest.

          1.7 In case dividends on the Series A Preferred Stock for any dividend
period in which they are  payable  are not paid in full,  all shares of Series A
Preferred Stock and all shares of any other series of Preferred Stock ranking as
to dividends on a parity with Series A Preferred Stock shall participate ratably
in the payment of dividends for such period in proportion to the full amounts of
dividends for such period to which they are respectively entitled.

     2. Liquidation Rights.

          2.1 In the event of any liquidation,  dissolution or winding up of the
affairs of the Corporation,  whether  voluntary or involuntary (each of which is
hereinafter referred to as a

                                        2

<PAGE>

"Liquidation"),  the  holders  of  shares  of  Series  A  Preferred  Stock  then
outstanding  shall be entitled  to be paid out of the assets of the  Corporation
available  for  distribution  to its  stockholders  an amount per share equal to
$1,000, plus accrued but unpaid dividends, before any distribution shall be made
to the holders of Common  Stock or any other stock  junior to Series A Preferred
Stock as to the distribution of assets upon Liquidation. If upon Liquidation the
Corporation's assets are not sufficient to pay in full the amounts so payable to
the holders of shares of Series A  Preferred  Stock and the holders of any other
series of Preferred  Stock ranking on a parity as to the  distribution of assets
on Liquidation  with shares of Series A Preferred  Stock, all shares of Series A
Preferred  Stock and of such other series of Preferred  Stock shall  participate
ratably in the distribution of assets in proportion to the full amounts to which
they are respectively entitled.

          2.2 For the purpose of this Paragraph 2, a consolidation  or merger of
the Corporation with any other  corporation,  or the sale,  transfer of lease of
all or  substantially  all of its assets,  shall not  constitute  or be deemed a
Liquidation.

     3. Redemption.

          3.1 Shares of Series A Preferred  Stock may be  redeemed,  in whole at
any  time or in part  from  time  to  time,  at the  option  of the  Corporation
expressed by resolution of the Board of Directors,  at $1,000 per share, plus an
amount equal to all accrued dividends unpaid as of the date fixed for redemption
(hereinafter called the "Series A Preferred Redemption Price").

          3.2 If less than all the  outstanding  shares  of  Series A  Preferred
Stock are to be redeemed pursuant to the optional redemption  provisions of this
Paragraph  3, the shares to be  redeemed  shall be  selected  pro rata among the
holders thereof.

          3.3 Notice to the holders of shares of Series A Preferred  Stock to be
redeemed shall be given by mailing to such holders a notice of such  redemption,
first class,  postage prepaid, not less than 20 nor more than 30 days before the
date fixed for redemption, at their last addresses as they shall appear upon the
books of the  Corporation.  Any  notice  which is  mailed in the  manner  herein
provided shall be conclusively  presumed to have been duly given, whether or not
the  stockholder  receives such notice;  and failure duly to give such notice by
mail, or any defect in such notice,  to any stockholder whose shares of Series A
Preferred  Stock  have been  designated  for  redemption  shall not  affect  the
validity of the  proceedings  for the redemption of any other shares of Series A
Preferred Stock.  The notice of redemption to each  stockholder  whose shares of
Series A Preferred Stock are to be redeemed shall specify the

                                        3

<PAGE>

number of shares of Series A  Preferred  Stock  held by such  stockholder  to be
redeemed,  the  date  fixed  for such  redemption  and the  Series  A  Preferred
Redemption  Price at which such  shares are to be  redeemed,  and shall  specify
where  payment of the  Series A  Preferred  Redemption  Price is to be made upon
surrender of such shares.

          3.4 On and after the date fixed in any such  notice of  redemption  as
the date of  redemption  (unless  default  shall be made by the  Corporation  in
providing  moneys for the payment of the Series A Preferred  Redemption  Price),
all rights as stockholders of the Corporation of the holders of shares of Series
A  Preferred  Stock to be  redeemed,  except the right to  receive  the Series A
Preferred Redemption Price as herein provided, shall cease and terminate. At any
time on or after the date fixed as aforesaid for such redemption, the respective
holders of record of shares of Series A Preferred  Stock to be redeemed shall be
entitled to receive the Series A Preferred Redemption Price upon actual delivery
to  the  Corporation  of  certificates  of  the  shares  to  be  redeemed,  such
certificates,  if  required  by the  Corporation,  to be  properly  stamped  for
transfer and duly  endorsed in blank or  accompanied  by proper  instruments  of
assignment and transfer thereof duly executed in blank.

     4. Status of Series A Preferred Stock Reacquired.

          Shares  of  Series A  Preferred  Stock  which  have  been  issued  and
reacquired in any manner shall (upon  compliance with  applicable  provisions of
the laws of the  State of  Delaware),  be deemed  to be  cancelled  and have the
status  of  authorized  and  unissued  shares of the  class of  Preferred  Stock
issuable  in  series  undesignated  as to  series  and may be  redesignated  and
reissued.

     5. No Voting Rights.

          Holders  of Series A  Preferred  Stock  shall  have no voting  rights,
except as may be required by law.

     6. Conversion Rights.

          6.1 Upon the terms  and in the  manner  hereinafter  set forth in this
Paragraph  6, any holder of shares of the Series A  Preferred  Stock may, at the
option of such  holder,  at any time and from time to time after the  earlier of
(i)  September 30, 1999 and (ii) the second  anniversary  of the date upon which
the Securities and Exchange  Commission  declares effective under the Securities
Act of 1933, as amended,  a registration  statement for an  underwritten  public
offering  of the  Corporation's  Common  Stock,  convert  each share of Series A
Preferred Stock into 222.22 shares of Common Stock (the "Conversion  Rate"),  as
adjusted and readjusted from time to time in accordance with this Paragraph 6.

                                        4

<PAGE>

          6.1.2 In order to  convert  shares of Series A  Preferred  Stock  into
Common  Stock,  the  holder  thereof  shall (i)  surrender  the  certificate  or
certificates for such shares of Series A Preferred  Stock,  duly endorsed to the
Corporation or in blank,  to the  Corporation at its principal  office or at the
office of the agency  maintained for such purposes,  (ii) give written notice to
the Corporation at such office that such holder elects to convert such shares of
Series A Preferred  Stock,  and (iii) state in writing therein the name or names
in which such holder wishes the certificate or certificates for shares of Common
Stock to be issued. Each conversion shall be deemed to have been effected at the
close of business on the date on which the Corporation or such agency shall have
received  such  surrendered  Series A Preferred  Stock  certificate(s),  and the
person or persons in whose name or names any  certificate  or  certificates  for
shares of Common Stock shall be issuable upon such conversion shall be deemed to
have become the record  holder or holders of the shares  represented  thereby on
such date. As soon as practicable  after such conversion,  the Corporation shall
issue or deliver at such office to the holder for whose  account  such shares of
Series A Preferred  Stock were so  surrendered,  or to such holder's  nominee or
nominees,  certificates  (bearing  such  legend(s)  as  may  be  required  under
applicable  securities  laws) for the number of full  shares of Common  Stock to
which such holder shall be entitled,  plus, in lieu of any  fractional  share to
which such holder  would  otherwise  be  entitled,  cash equal to such  fraction
multiplied  by the closing  price per share of the Common Stock on the principal
exchange on which it is then listed, or if it is not so listed, the mean between
the closing bid and ask prices per share for such stock,  as reported by NASDAQ,
The National Quotation Bureau,  Incorporated,  or other similar service, in each
instance as of the close of business on the date of such conversion.

          6.1.3 No  accrued  but  unpaid  dividends  shall be paid on  shares of
Series A Preferred Stock  converted,  except that no holder shall be prejudiced,
by reason of conversion, in his rights to recover dividends declared and unpaid,
if the payment date of the dividends declared preceded the date of conversion.

          6.2 The  conversion  rate shall be subject to adjustment  from time to
time as follows:  in case the Corporation shall at any time pay a stock dividend
in its Common Stock (other than on the Series A Preferred Stock), or in case the
Corporation shall at any time either subdivide or combine the outstanding shares
of Common  Stock,  the  conversion  rate shall  immediately  be  proportionately
adjusted.  In case of any capital  reorganization or any reclassification of the
capital stock of the  Corporation or in case of the  consolidation  or merger of
the  Corporation  with  or  into  another  corporation  or  the  sale  of all or
substantially  all of the assets of the  Corporation as or  substantially  as an
entirety to another  corporation,  each share of Series A Stock shall thereafter
be convertible into the number of shares of

                                        5

<PAGE>

stock or other  securities or property to which a holder of the number of shares
of Common Stock of the  Corporation  then  deliverable  upon  conversion of such
share  of  Series  A  Preferred   Stock  would  have  been  entitled  upon  such
reorganization,  reclassification,  consolidation, merger or conveyance; and, in
any such case,  appropriate adjustment (as determined by the Board of Directors)
shall be made in the application of the provisions herein set forth with respect
to the rights and interests  thereafter of the holders of the shares of Series A
Preferred  Stock,  to the end that the  provisions  set forth herein  (including
provisions  with respect to changes in and other  adjustments  of the conversion
rate)  shall  thereafter  be  applicable,  as  nearly as  reasonably  may be, in
relation to any shares of stock or other property  thereafter  deliverable  upon
the conversion of the shares of Series A Preferred Stock.

          6.3 No adjustment in the conversion rate shall be required unless such
adjustment (and any other  adjustments which by reason of this Paragraph 6.3 are
not  required to be made)  would not,  if made,  entitle the holders of all then
outstanding  shares of Series A  Preferred  Stock  upon  conversion  thereof  to
receive  additional shares of Common Stock equal in the aggregate to one percent
(1%) or more of the total issued and  outstanding  shares of Common  Stock.  All
calculations  under  this  Paragraph  6.3  shall  be  made  to the  nearest  one
one-hundredth (1/100) of a share.

          6.4 Whenever the conversion  rate is adjusted as herein  provided,  an
officer  of the  Corporation  shall  compute  the  adjusted  conversion  rate in
accordance with the foregoing  provisions and shall prepare a written instrument
setting forth such adjusted conversion rate and showing in detail the facts upon
which such  adjustment  is based,  and a copy of such written  instrument  shall
forthwith  be mailed to each holder of record of the Series A  Preferred  Stock,
and made available for inspection by the stockholders of the Corporation.

          6.5 The  Corporation  shall at all times  reserve and keep  available,
free from  preemptive  rights,  out of its authorized but unissued Common Stock,
for the purpose of effecting the  conversion of the shares of Series A Preferred
Stock,  the full  number of shares of Common  Stock  then  deliverable  upon the
conversion of all shares of Series A Preferred Stock then outstanding,  and such
shares shall be listed,  subject to notice of issuance, on any stock exchange(s)
on which outstanding shares of Common Stock may then be listed.

          6.6 The  Corporation  will pay and all taxes  that may be  payable  in
respect of the issuance or delivery of shares of Common Stock on  conversion  of
shares of Series A Preferred Stock pursuant hereto.  The Corporation  shall not,
however,  be  required  to pay any tax which may be  payable  in  respect of any
transfer

                                        6

<PAGE>

involved  in the issue and  delivery  of shares of Common  Stock in a name other
than that in which the  shares of Series A  Preferred  Stock so  converted  were
registered,  and no such issue or  delivery  shall be made  unless and until the
person  requesting such issue has paid to the Corporation the amount of any such
tax, or has established,  to the satisfaction of the Corporation,  that such tax
has been paid or is not payable.

     7.  Exclusion of Other Rights.  Except as may otherwise be required by law,
the  shares of  Series A  Preferred  Stock  shall  not have any  preferences  or
relative,  participating,  optional  or other  special  rights  other than those
specifically  set forth in this  resolution  (as such  resolution may be amended
from time to time) and in the Certificate of  Incorporation  of the Corporation,
as amended.

     8.  Headings of  Subdivisions.  The  headings  of the various  subdivisions
hereof  are  for  convenience  of  reference  only  and  shall  not  affect  the
interpretation of any of the provisions hereof.

     9.  Severability of Provisions.  If any right,  preference or limitation of
the Series A Preferred set forth in this  resolution (as such  resolution may be
amended from time to time) is invalid,  unlawful, or incapable of being enforced
by reason of any rule of law or public policy, all other rights, preferences and
limitations  set forth in this  resolution  (as so  amended)  which can be given
effect  without the invalid,  unlawful or  unenforceable  right,  preference  or
limitation shall,  nevertheless,  remain in full force and effect, and no right,
preference or  limitation  herein set forth shall be deemed  dependent  upon any
other such right, preference or limitation unless so expressed herein.

     IN WITNESS  WHEREOF,  the  Corporation  has caused its corporate seal to be
affixed and this  certificate to be signed by Joel  Schoenfeld,  its Chairman of
the Board and Chief Executive Officer and attested to by Flora  Schoenfeld,  its
Secretary, this 30th day of December, 1996.


                                        /s/  Joel Schoenfeld
                                        --------------------------------
                                             Joel Schoenfeld
                                             Chairman of the Board
                                             and Chief Executive Officer

[CORPORATE SEAL]

ATTEST:


     /s/  Flora Schoenfeld
     -------------------------------
          Flora Schoenfeld
          Secretary

                                        7


<PAGE>

                                     BY-LAWS

                                       OF

                                  UNIVEC, INC.



     1. MEETINGS OF STOCKHOLDERS

     1.1 Annual Meeting. An annual meeting of stockholders shall be held for the
election of directors at such date, time and place, either within or without the
State of Delaware,  as may be designated by resolution of the Board of Directors
(the "Board") from time to time. Any other proper  business may be transacted at
the annual meeting.

     1.2 Special Meetings. Special meetings of the stockholders may be called at
any time by resolution  of the Board or by the Chairman of the Board,  the Chief
Executive Officer or the President, and may be held either within or without the
State of  Delaware,  but such  special  meetings  may not be called by any other
persons.

     1.3 Notice of  Meetings.  Written  notice of each  meeting of  stockholders
shall be given to each stockholder  entitled to vote at the meeting,  personally
or by mail,  not less than 10 nor more than 60 days before the meeting and shall
state the time and place of the  meeting,  and unless it is the annual  meeting,
shall state the  purposes  for which it is called.  If mailed,  notice  shall be
considered   given  when  mailed  to  a  stockholder   at  his  address  on  the
Corporation's records.

     1.4  Adjournments.  Any meeting of  stockholders,  annual or  special,  may
adjourn  from time to time to  reconvene  at the same or some other  place,  and
notice  need not be given of any such  adjourned  meeting  if the time and place
thereof are announced at the meeting at which the  adjournment is taken.  At the
adjourned  meeting the  Corporation  may transact any business  which might have
been transacted at the original meeting.  If the adjournment is for more than 30
days,  or if after the  adjournment a new record date is fixed for the adjourned
meeting, a notice of the adjourned meeting shall be given to each stockholder of
record entitled to vote at the meeting.

     1.5 Quorum.  Except as provided by law, the Certificate of Incorporation or
these  By-laws,  at each meeting of  stockholders,  the presence in person or by
proxy of the holders of a majority of the issued and outstanding shares of stock
entitled to vote shall  constitute a quorum for the transaction of any business.
In the  absence  of a  quorum,  holders  of a  majority  of the  shares of stock
entitled  to vote  present  in person or by proxy,  or, if no  stockholders  are
present, any officer entitled to preside at or to act as secretary of the


<PAGE>



meeting,  may adjourn the  meeting  from time to time in the manner  provided in
Section 1.4 of these By-laws until a quorum is present.


     1.6  Organization.  Meetings of stockholders  shall be presided over by the
Chairman of the Board, or in his absence,  the Vice Chairman of the Board, or in
his  absence,  by  the  Chief  Executive  Officer,  or in  his  absence,  by the
President,  or in the absence of the foregoing persons by a chairman  designated
by the Board of Directors,  or in the absence of such  designation by a chairman
chosen at the meeting.  The Secretary shall act as secretary of the meeting, but
in his  absence  the  chairman  of the  meeting may appoint any person to act as
secretary of the meeting.

     1.7 Voting;  Proxies.  Each  stockholder of record  entitled to vote at any
meeting of stockholders shall be entitled to one vote for every share registered
in his name, except as otherwise provided in the Certificate of Incorporation or
any  certificate of designation  authorizing the creation of any series or class
of stock of the  Corporation  filed  with the  Secretary  of State  pursuant  to
Section 151 of the Delaware  General  Corporation  Law.  Corporate  action to be
taken by  stockholder  vote,  other than the  election  of  directors,  shall be
authorized by a majority of the votes cast at a meeting of stockholders,  except
as  otherwise  provided  by  law,  Section  1.10  of  these  By-laws,  or in the
Certificate of Incorporation  or any certificate of designation  authorizing the
creation  of any  series  or class of stock of the  Corporation  filed  with the
Secretary of State pursuant to Section 151 of the Delaware  General  Corporation
Law.  Directors  shall be elected in the manner provided in Section 2.1 of these
By-laws.  Unless  required by statute or the  Certificate of  Incorporation,  or
ordered by the  chairman of the meeting,  voting need not be by written  ballot.
Each  stockholder  entitled  to vote at any meeting of  stockholders  or express
consent to or dissent  from  corporate  action in writing  without a meeting may
authorize another person to act for him by proxy.  Every proxy must be signed by
the  stockholder  or his  attorney-in-fact.  No proxy shall be valid after three
years from its date unless it provides otherwise. A duly executed proxy shall be
irrevocable if it states that it is irrevocable  and if, and only as long as, it
is coupled with an interest sufficient in law to support an irrevocable power. A
stockholder  may revoke any proxy  which is not  irrevocable  by  attending  the
meeting and voting in person or by filing an instrument in writing  revoking the
proxy or another duly executed  proxy bearing a later date with the Secretary of
the Corporation.

     1.8 Fixing Date for  Determination of Stockholders of Record. In order that
the Corporation may determine the

                                       -2-


<PAGE>


stockholders  entitled to notice of or to vote at any meeting of stockholders or
any adjournment  thereof,  or to express consent to corporate  action in writing
without a meeting,  or  entitled  to receive  payment of any  dividend  or other
distribution  or allotment of any rights,  or entitled to exercise any rights in
respect of any change, conversion or exchange of stock or for the purpose of any
other lawful  action,  the Board may fix a record date,  which record date shall
not precede the date upon which the resolution fixing the record date is adopted
by the  Board  and  which  record  date:  (1) in the  case of  determination  of
stockholders  entitled to vote at any  meeting of  stockholders  or  adjournment
thereof,  shall,  unless otherwise required by law, not be more than 60 nor less
than 10 days before the date of such meeting;  (2) in the case of  determination
of  stockholders  entitled  to express  consent to  corporate  action in writing
without a  meeting,  shall not be more than 10 days from the date upon which the
resolution  fixing the record date is adopted by the Board;  and (3) in the case
of any other action,  shall not be more than 60 days prior to such other action.
If no record  date is fixed,  (1) the record date for  determining  stockholders
entitled  to notice of or to vote at a meeting of  stockholders  shall be at the
close of business on the day next preceding the day on which notice is given, or
if notice is waived,  at the close of business on the day next preceding the day
on which the meeting is held; (2) the record date for  determining  stockholders
entitled to express  consent to  corporate  action in writing  without a meeting
when no prior  action of the Board is required by law shall be the first date on
which a signed written  consent setting forth the action taken or proposed to be
taken is delivered to the  corporation in accordance with applicable law, or, if
prior action by the Board is required by law,  shall be at the close of business
on the day on which the Board adopts the  resolution  taking such prior  action;
and (3) the record date for determining stockholders for any other purpose shall
be at the close of business on the day on which the Board adopts the  resolution
relating  thereto.  A determination of stockholders of record entitled to notice
of or to vote at a meeting of stockholders shall apply to any adjournment of the
meeting;  provided,  however,  that the Board may fix a new record  date for the
adjourned meeting.

     1.9 List of  Stockholders.  Not less than 10 days  prior to the date of any
meeting of  stockholders,  the  Secretary  of the  corporation  shall  prepare a
complete  list of  stockholders  entitled  to vote at the  meeting,  arranged in
alphabetical order and showing the address of each stockholder and the number of
shares  registered  in his name.  For a period of not less than 10 days prior to
the meeting,  the list shall be available  during  ordinary  business  hours for
inspection by any  stockholder  for any purpose  germane to the meeting.  During
this period, the list shall be kept either (a) at a place within the city where

                                       -3-


<PAGE>


the meeting is to be held, if that place shall have been specified in the notice
of meeting, or (b) if not so specified,  at the place where the meeting is to be
held.  The list also shall be available for  inspection by  stockholders  at the
time and place of the meeting.

     1.10 Action by Consent without a Meeting.  Unless otherwise provided in the
Certificate of  Incorporation,  any action  required or permitted to be taken at
any annual or special  meeting of  stockholders  of the Corporation may be taken
without a meeting,  without  prior  notice and  without a vote,  if a consent in
writing,  setting  forth the action so taken,  shall be signed by the holders of
outstanding stock having not less than the minimum number of votes that would be
necessary  to  authorize  or take such  action at a meeting  at which all shares
entitled to vote thereon were present and voting. Prompt notice of the taking of
any such  action  shall be given to those  stockholders  who did not  consent in
writing.


     1.11 Inspectors.  The Board may, in advance of any meeting of stockholders,
appoint  one or  more  inspectors  to act at  such  meeting  or any  adjournment
thereof.  If the  inspectors  shall not be so  appointed or if any of them shall
fail to appear or act,  the  chairman of the meeting  may, and at the request of
any  stockholder  entitled  to vote  thereat  shall,  appoint  inspectors.  Each
inspector, before entering upon the discharge of his duties, shall take and sign
an oath  faithfully  to execute the duties of  inspector  at such  meeting  with
strict  impartiality  and according to the best of his ability.  The  inspectors
shall  determine the number of shares  outstanding and the voting power of each,
the number of shares represented at the meeting,  the existence of a quorum, the
validity and effect of proxies,  and shall receive  votes,  ballots or consents,
hear and determine all challenges and questions  arising in connection  with the
right to vote, count and tabulate all votes, ballots or consents,  determine the
result,  and do such acts as are proper to  conduct  the  election  or vote with
fairness to all  stockholders.  On request of the chairman of the meeting or any
stockholder  entitled to vote  thereat,  the  inspectors  shall make a report in
writing of any challenge, request or matter determined by them and shall execute
a  certificate  of any fact  found by them.  Inspectors  may,  but need not,  be
stockholders.


                                       -4-

<PAGE>


     2. BOARD OF DIRECTORS

     2.1 Number, Qualification,  Election and Term of Directors. The business of
the  Corporation  shall be  managed  by the  Board of  Directors.  The  Board of
Directors shall consist of not more than seven nor less than three directors, as
fixed from time to time by  resolution  of the Board,  except that the number of
directors  constituting  the Board may be less than three provided the number of
directors is not less than the number of  stockholders.  The number of directors
may be changed by a resolution of a majority of the directors  then in office or
by the  stockholders,  but no decrease  may  shorten  the term of any  incumbent
director. Directors shall be elected at each annual meeting of stockholders by a
plurality  of the votes  cast and shall  hold  office  until  the  election  and
qualification  of their  respective  successors,  or if  earlier,  their  death,
resignation or removal in accordance with the provisions of Section 2.9 of these
By-laws, or as otherwise provided by law or the Certificate of Incorporation.

    2.2 Quorum and Manner of Acting.  A majority of the directors then in office
shall constitute a quorum for the transaction of business at any meeting, except
as  provided  in Section 2.7 of these  By-laws.  In the  absence of a quorum,  a
majority of the  directors  present  may  adjourn any meeting  from time to time
until a quorum is present.  Action of the Board shall be  authorized by the vote
of a  majority  of the  directors  present at the time of the vote if there is a
quorum,  unless  otherwise  provided by law, these By-laws or the Certificate of
Incorporation.

     2.3 Annual  and  Regular  Meetings.  Annual  meetings  of the Board for the
election  of  officers  and  consideration  of other  matters may be held either
within or without  the State of  Delaware  and shall be held  either (a) without
notice  immediately  after the annual  meeting of  stockholders  and at the same
place, or (b) as soon as practicable  after the annual meeting of  stockholders,
on notice as provided in Section 2.5 of these By-laws.  Regular  meetings of the
Board  may be held  without  notice  at  such  times  and  places  as the  Board
determines.  If the day fixed for the regular  meeting is a legal  holiday,  the
meeting shall be held on the next business day.

     2.4 Special Meetings. Special meetings of the Board may be held at any time
and  place  within  or  without  the State of  Delaware  whenever  called by the
Chairman  of the Board,  the Vice  Chairman  of the Board,  the Chief  Executive
Officer, the President or by a majority of the directors.  Only business related
to the  purposes  set forth in the  notice of  meeting  may be  transacted  at a
special meeting.


                                       -5-


<PAGE>


     2.5  Notice  of  Meetings.  Notice  of the time and  place of each  special
meeting of the Board, and of each annual meeting not held immediately  after the
annual  meeting of  stockholders  and at the same place,  shall be given to each
director  by mailing it to him at his  residence  or usual  place of business at
least three days before the meeting, or by delivering,  telephoning or faxing it
to him at least 24 hours before the meeting.  Notice of a special  meeting shall
also state the  purpose or purposes  for which the meeting is called.  Notice of
any  adjourned  meeting  need not be given,  other than by  announcement  at the
meeting at which the adjournment is taken.

     2.6 Organization. Meetings of the Board of Directors shall be presided over
by the Chairman of the Board, or in his absence, the Vice Chairman of the Board,
or in  his  absence,  the  Chief  Executive  Officer,  or in  his  absence,  the
President,  or in  their  absence  by a  chairman  chosen  at the  meeting.  The
Secretary shall act as secretary of the meeting, but in his absence the chairman
of the meeting may appoint any person to act as secretary of the meeting.

     2.7 Board or Committee  Action  without a Meeting.  Any action  required or
permitted to be taken by the Board or by any committee of the Board may be taken
without a meeting if all of the members of the Board or the committee consent in
writing to the adoption of a resolution  authorizing the action.  The resolution
and the written  consents by the members of the Board or the committee  shall be
filed with the minutes of the proceedings of the Board or of the committee.

     2.8 Participation in Board or Committee  Meetings by Conference  Telephone.
Any or all members of the Board or of any committee of the Board may participate
in a meeting of the Board or of the committee by means of a conference telephone
or similar  communications  equipment allowing all persons  participating in the
meeting to hear each other at the same time.  Participation  by such means shall
constitute presence in person at the meeting.

     2.9  Resignation  and Removal of Directors.  Any director may resign at any
time by delivering his resignation in writing to the Chairman of the Board,  the
Vice Chairman of the Board,  the Chief Executive  Officer,  the President or the
Secretary  of the  Corporation,  to take  effect  at the time  specified  in the
resignation, and the acceptance of a resignation,  unless required by its terms,
shall not be necessary to make it effective. Except as otherwise provided by law
or in the  Certificate  of  Incorporation,  any or all of the  directors  may be
removed at any time,  either with or without cause, by vote of a majority of the
shares then entitled to vote for the election of directors.


                                       -6-


<PAGE>


     2.10  Vacancies.  Any  vacancy in the Board,  including  one  created by an
increase  in the number of  directors,  may be filled by a majority  vote of the
remaining  directors,  although  such  majority  is less than a quorum,  or by a
plurality of the votes cast at a meeting of the stockholders,  and each director
so elected  shall hold office until the  expiration  of the term of the director
whom he has replaced or until his successor is elected and qualified.

     2.11  Compensation.  Directors shall receive such compensation as the Board
determines,   together  with  reimbursement  of  their  reasonable  expenses  in
connection with the performance of their duties. A director also may be paid for
serving the Corporation, its affiliates or subsidiaries in other capacities.


     3. COMMITTEES

     3.1 Executive Committee.  The Board, by resolution adopted by a majority of
the entire Board, may designate an Executive  Committee of one or more directors
which shall have all the powers and authority of the Board,  except as otherwise
provided in the resolution,  Section 141(c) of the Delaware General  Corporation
Law, or any other  applicable law. The members of the Executive  Committee shall
serve at the pleasure of the Board. All action of the Executive  Committee shall
be reported to the Board at its next meeting.

     3.2 Other Committees. The Board, by resolution adopted by a majority of the
entire  Board,  may  designate  other  committees  of the  Board  of one or more
directors,  which shall serve at the Board's  pleasure  and have such powers and
duties as the Board determines,  subject to the limitations set forth in Section
141(c) of the Delaware General Corporation Law.

     3.3 Rules  Applicable  to  Committees.  The Board may designate one or more
directors as alternate  members of any committee,  who may replace any absent or
disqualified  member  at  any  meeting  of the  committee.  In  the  absence  or
disqualification of any member of a committee,  the member or members present at
a meeting of the committee and not  disqualified,  whether or not a quorum,  may
unanimously  appoint  another  director  to act at the  meeting  in place of the
absent or disqualified  member. All action of the committee shall be reported to
the Board at its next meeting. Each committee shall adopt rules of procedure and
shall meet as provided by those rules or by resolutions of the Board.

     4. OFFICERS

     4.1 Executive  Officers.  The executive  officers of the Corporation  shall
consist of the Chairman of the Board, the

                                       -7-


<PAGE>


Chief Executive Officer, the President, one or more Vice Presidents (one or more
of whom may be designated  Executive Vice  President or Senior Vice  President),
the Chief  Financial  Officer,  a  Secretary  and a  Treasurer.  Any two or more
offices may be held by the same person.

     4.2 Election;  Term of Office.  The executive  officers of the  Corporation
shall be elected  annually by the Board, and each such officer shall hold office
until the next  annual  meeting  of the Board  and  until  the  election  of his
successor,  or his earlier death,  resignation or removal in accordance with the
provisions of Section 4.4 of these By-laws.

     4.3  Subordinate  Officers.  The Board  may  appoint  subordinate  officers
(including assistant secretaries and assistant treasurers), agents or employees,
each of whom shall hold  office for such  period and have such powers and duties
as the Board  determines.  The Board may delegate to any executive officer or to
any  committee  the power to  appoint  and  define  the powers and duties of any
subordinate  officers,  agents or employees.  The Board may require any officer,
agent or employee to give security for the faithful performance of his duties.

     4.4 Resignation and Removal of Officers. Any officer may resign at any time
by delivering his resignation in writing to the Chairman of the Board,  the Vice
Chairman  of the  Board,  the Chief  Executive  Officer,  the  President  or the
Secretary  of the  Corporation,  to take  effect  at the time  specified  in the
resignation,  and the  acceptance of such  resignation,  unless  required by its
terms, shall not be necessary to make it effective. Any officer appointed by the
Board or appointed by an executive  officer or by a committee  may be removed by
the Board either with or without cause, and in the case of an officer  appointed
by an  executive  officer or by a  committee,  by the officer or  committee  who
appointed  him or by the Chairman of the Board,  the Vice Chairman of the Board,
the Chief Executive Officer or the President.

     4.5 Vacancies. A vacancy in any office may be filled for the unexpired term
in the manner  prescribed  in Sections 4.2 and 4.3 of these By-laws for election
or appointment to the office.

     4.6  Chairman of the Board.  The  Chairman of the Board of the  Corporation
shall  preside at all  meetings of the Board and of the  stockholders  and shall
have such other powers and duties as the Board assigns to him.


     4.7 Chief Executive Officer. The Chief Executive Officer of the Corporation
shall supervise and direct the business and affairs of the Corporation,  subject
to the control of the Board,

                                       -8-


<PAGE>


and shall have such other powers and duties as the Board assigns to him.

     4.8  President.  The  President of the  Corporation  shall,  subject to the
direction of the Chief  Executive  Officer and the control of the Board,  direct
and  manage  the  day-to-day  business  activities  and  general  affairs of the
Corporation, and shall have such other powers and duties as the Board assigns to
him.

     4.9  Vice-President.  Each vice president shall have such powers and duties
as the Board or the Chairman of the Board,  the Chief  Executive  Officer or the
President assigns to him.

     4.10  Secretary.  The  Secretary  shall be the  secretary  of, and keep the
minutes  of,  all  meetings  of the  Board  and of the  stockholders,  shall  be
responsible for giving notice of all meetings of stockholders  and of the Board,
and shall  keep the seal and,  when  authorized  by the  Board,  apply it to any
instrument requiring it. Subject to the control of the Board, he shall have such
powers and  duties as the  Board,  the  Chairman  of the Board or the  President
assigns to him. In the absence of the  Secretary  from any meeting,  the minutes
shall be kept by the person appointed for that purpose by the presiding officer.

     4.11  Chief  Financial   Officer.   The  Chief  Financial  Officer  of  the
Corporation  shall be the  principal  financial  and  accounting  officer of the
Corporation,  and shall have primary  responsibility for the Corporation's books
and  accounts.  Subject to the  control  of the Board,  he shall have such other
powers and duties as the Board,  the Chairman of the Board,  the Chief Executive
Officer or the President assigns to him.

     4.12 Treasurer.  The Treasurer of the Corporation shall have custody of the
corporate funds and securities and,  subject to the control of the Board,  shall
have such other powers and duties as the Board,  the Chairman of the Board,  the
Chief Executive Officer, the President or the Chief Financial Officer assigns to
him.

     4.13 Salaries.  The Board may fix the officers' salaries, if any, or it may
authorize  the  Chairman of the Board or the  President to fix the salary of any
other officer.




     5. SHARES

     5.1  Certificates.   The  Corporation's  shares  shall  be  represented  by
certificates in the form approved by the Board. Each certificate shall be signed
by the  Chairman  of the  Board,  the Vice  Chairman  of the  Board,  the  Chief
Executive Officer, the

                                       -9-


<PAGE>


President or a Vice President and by the Secretary or an Assistant Secretary, or
the  Treasurer  or  an  Assistant  Secretary,  and  shall  be  sealed  with  the
Corporation's  seal or a facsimile of the seal.  Any or all of the signatures on
the certificate may be a facsimile.

     5.2  Transfers.  Shares  shall be  transferable  only on the  Corporation's
books, upon surrender of the certificate for the shares, properly endorsed.

     5.3 Lost, Stolen or Destroyed Certificates. The Corporation may issue a new
certificate of stock in the place of any certificate  theretofore  issued by it,
alleged to have been lost, stolen or destroyed,  and the Corporation may require
the  owner  of  any  lost,  stolen  or  destroyed  certificate,   or  his  legal
representative,  to give the  Corporation  a bond  sufficient  to  indemnify  it
against any claim that may be made  against it on account of the  alleged  loss,
theft  or  destruction  of any  such  certificate  or the  issuance  of any  new
certificate.


     6. MISCELLANEOUS

     6.1 Seal. The corporate seal shall bear the Corporation's name and the year
and state in which it was incorporated.

     6.2 Fiscal Year. The Board, by resolution,  may determine the Corporation's
fiscal year. Until changed by the Board, the Corporation's  fiscal year shall be
the calendar year.

     6.3 Waiver of Notice of Meetings of Stockholders, Directors and Committees.
Any written waiver of notice,  signed by the person entitled to notice,  whether
before or after the time stated therein,  shall be deemed  equivalent to notice.
Attendance  of a person at the meeting  shall  constitute  a waiver of notice of
such meeting,  except when the person attends a meeting for the express  purpose
of  objecting,  at the  beginning  of the  meeting,  to the  transaction  of any
business  because the meeting is not lawfully  called or  convened.  Neither the
business  transacted  at, nor the purpose of, any regular or special  meeting of
the  stockholders,  directors,  or members of a committee of  directors  need be
specified in any written waiver of notice.

     6.4 Interested  Directors;  Ouorum. No contract or transaction  between the
Corporation  and  one or more of its  directors  or  officers,  or  between  the
Corporation  and any other  corporation,  partnership or  association,  or other
organization  in which one or more of its directors or officers are directors or
officers,  or have a financial  interest,  shall be void or voidable  solely for
this  reason,  or solely  because  the  director  or  officer  is  present at or
participates in the meeting of the

                                      -10-

<PAGE>


Board or committee  thereof which  authorizes  the contract or  transaction,  or
solely  because his or their votes are  counted  for such  purpose,  if: (1) the
material  facts as to his  relationship  or interest  and as to the  contract or
transaction  are disclosed or are known to the Board or the  committee,  and the
Board or the committee in good faith  authorizes  the contract or transaction by
the affirmative votes of a majority of the disinterested directors,  even though
the disinterested  directors be less than a quorum; or (2) the material facts as
to his  relationship  or  interest  and as to the  contract or  transaction  are
disclosed or are known to the  stockholders  entitled to vote  thereon,  and the
contract or  transaction is  specifically  approved in good faith by vote of the
stockholders;  or (3) the contract or transaction is fair as to the  Corporation
as of the time it is  authorized,  approve or ratified by the Board, a committee
thereof, or the stockholders.  Common or interested  directors may be counted in
determining the presence of a quorum at a meeting of the Board or of a committee
which authorizes the contract or the transaction.

     6.5 Voting of Shares in other  Corporations.  Shares in other  corporations
which are held by the  Corporation  may be represented and voted by the Chairman
of the Board, the Chief Executive Officer,  the President or a Vice President of
the  Corporation or by proxy or proxies  appointed by any one of them. The Board
may, however, appoint some other person to vote the shares.

     6.6 Amendments.  These By-laws may be amended or repealed,  and new By-laws
may be adopted,  by the Board,  subject to compliance  with Section 2.2 of these
By-Laws,  but the stockholders  may adopt  additional  By-laws and may amend and
repeal any By-laws whether adopted by them or otherwise.



                                      -11-






<PAGE>


                                    AGREEMENT

                               AND PLAN OF MERGER

                                     BETWEEN

                                  UNIVEC, INC.

                            (a New York Corporation)

                                       AND

                                  UNIVEC, INC.

                            (a Delaware Corporation)

     Agreement and Plan of Merger (the "Agreement"), dated as of October 7,
1996, between UNIVEC, Inc., a New York corporation  ("UNIVEC") and UNIVEC, Inc.,
a newly-formed Delaware corporation and a wholly-owned subsidiary of UNIVEC (the
"Surviving Corporation").

     A.   UNIVEC is a corporation duly organized and existing under the laws of
          the State of New York and has an authorized capital of 200 common
          shares, without par value ("New York Common Shares"). As of the date
          hereof, 103.3526 New York Common Shares are issued and outstanding and
          entitled to one vote per share.

     B.   The Surviving Corporation is a corporation duly organized and existing
          under the laws of the State of Delaware and has an authorized capital
          of 25,000,000 shares of common stock, $.001 par value ("Delaware
          Common Stock"), and 5,000,000 shares of Preferred Stock, $.001 par
          value ("Delaware Preferred Stock"). As of the date hereof, 100 shares
          of Delaware Common Stock are issued and outstanding and entitled to
          one vote per share, and no shares of Delaware Preferred Stock are
          issued and outstanding.

     C.   The Board of Directors of UNIVEC has determined that, for the purpose
          of effecting the reincorporation of UNIVEC in the State of Delaware,
          it is advisable that UNIVEC merge with and into the Surviving
          Corporation upon the terms and conditions herein provided and in
          accordance with the laws of the States of New York and Delaware.

     D.   The respective Boards of Directors of UNIVEC and the Surviving
          Corporation have approved this Agreement and have directed that this
          Agreement be submitted to a vote of the shareholders of UNIVEC.

<PAGE>

     NOW THEREFORE, in consideration of the mutual agreements and covenants set
forth herein, UNIVEC and the Surviving Corporation hereby agree, subject to the
terms and conditions hereinafter set forth, as follows:

                                    ARTICLE I

                                     MERGER

     1.1 Merger. Subject to the terms and conditions of this Agreement, UNIVEC
shall be merged with and into the Surviving Corporation in accordance with the
New York Business Corporation Law (the "NYBCL") and the General Corporation Law
of the State of Delaware (the "DGCL")(the "Merger").

     The separate existence of UNIVEC shall cease, and the Surviving Corporation
shall be the surviving corporation and continue its corporate existence under
the laws of the State of Delaware. Thereafter, without further action, the
Surviving Corporation shall succeed, insofar as permitted by law, to all the
rights, assets, privileges, franchises, liabilities and obligations of UNIVEC.

     1.2 Filing and Effectiveness. The Merger shall become effective upon the
completion of the following actions:

     (a)  This Agreement and the Merger shall have been approved by the
          shareholders of UNIVEC in accordance with the provisions of the NYBCL;

     (b)  All of the conditions precedent to the consummation of the Merger
          specified in this Agreement shall have been satisfied or duly waived
          by the party entitled to satisfaction thereof;

     (c)  An executed Certificate of Merger, in the form attached hereto as
          Exhibit A, meeting the requirements of the DGCL or an executed
          counterpart of this Agreement shall have been filed with the Secretary
          of State of Delaware on behalf of the Surviving Corporation; and

     (d)  An executed Certificate of Merger, in the form attached hereto as
          Exhibit B, meeting the requirements of the NYBCL shall have been filed
          with the Secretary of State of New York on behalf of UNIVEC.

     The date and time when the Merger shall become effective, as set forth
above, is hereinafter referred to as the "Effective Date."

<PAGE>

     1.3 Certificate of Incorporation. The Certificate of Incorporation of the
Surviving Corporation, attached hereto as Exhibit C, in effect immediately prior
to the Effective Date shall continue in full force and effect as the Certificate
of Incorporation of the Surviving Corporation until duly amended in accordance
with the provisions thereof and applicable law, and the name of the Surviving
Corporation shall be UNIVEC, Inc.

     1.4 By-laws. The By-laws of the Surviving Corporation in effect immediately
prior to the Effective Date shall continue in full force and effect as the
By-laws of the Surviving Corporation until duly amended in accordance with the
provisions thereof and applicable law.

     1.5 Directors and Officers. The directors and officers of the Surviving
Company immediately prior to the Effective Date shall continue as the directors
and officers of the Surviving Corporation until their successors shall have been
elected or until otherwise provided by law, the Certificate of Incorporation of
the Surviving Corporation or the By-laws of the Surviving Corporation.

     1.6 Effect of Merger. Upon the Effective Date, the separate existence of
UNIVEC shall cease and the Surviving Corporation, as the Surviving Corporation,
(i) shall continue to possess all of its assets, rights, powers and property as
constituted immediately prior to the Effective Date, shall be subject to all
actions previously taken by its and UNIVEC's Board of Directors and shall
succeed, without other transfer, to all of the assets, rights, powers and
property of UNIVEC in the manner and as more fully set forth in Section 259 of
the DGCL, and (i) shall continue to be subject to all of its debts, liabilities
and obligations as constituted immediately prior to the Effective Date and
succeed, without other transfer, to all of the debts, liabilities and
obligations of UNIVEC in the same manner as if the Surviving Corporation had
incurred them, all as more fully provided under the applicable provisions of the
DGCL and the NYBCL.

                                   ARTICLE II

                          MANNER OF CONVERSION OF STOCK

     2.1 Outstanding Stock of UNIVEC. Upon the Effective Date, by virtue of the
Merger and without any action on the part of the holder thereof, each New York
Common Share outstanding immediately prior thereto shall be changed and
converted into 10,256.3954 fully paid and nonassessable share of common stock of
the Surviving Corporation, $.001 par value, with any fractional shares issuable
to a registered owner of New York Common Shares in the aggregate to be rounded
up to the nearest whole share.

     2.2 Stock Certificates. On and after the Effective Date, all of the
outstanding certificates which, prior to that time,

<PAGE>

represented New York Common Shares shall be deemed for all purposes to evidence
ownership of and to represent the shares of Delaware Common Stock into which the
New York Common Shares represented by such certificates have been converted as
provided for in this Agreement. The registered owner on the books and records of
UNIVEC or its transfer agent of any such outstanding stock certificate shall,
until such certificate shall have been surrendered for transfer or otherwise
accounted for the Surviving Corporation or its transfer agent, have and be
entitled to exercise any voting rights with respect to, and to receive any
dividend and other distributions upon, the shares of Delaware Common Stock
evidenced by such outstanding certificate as provided above.

     2.3 Warrants, Options. Upon the Effective Date, each outstanding option,
warrant or other right to purchase New York Common Shares shall be converted
into and become an option, warrant or right to purchase a number of shares of
Delaware Common Stock equal to the product of 10,256.3954 and the number of New
York Common Shares purchasable upon exercise thereof at a price per share equal
to the quotient resulting from dividing the price as in effect at the Effective
Date by 10,256.3954 (with fractional shares issuable in the aggregate to each
holder thereof to be rounded up to the nearest whole number), and upon the same
terms and subject to the same conditions as set forth in the agreements entered
into by UNIVEC pertaining to such option, warrant or right. The Surviving
Corporation shall reserve a number of shares of Delaware Common Stock for
purposes of such options, warrants and rights sufficient to allow the exercise
thereof.

     2.4 Outstanding Common Stock of the Surviving Corporation. Upon the
Effective Date, the 100 shares of Delaware Common Stock issued and outstanding
in the name of UNIVEC shall be cancelled and retired and resume the status of
authorized and unissued shares of Delaware Common Stock, and no shares of
Delaware Common Stock or other securities of the Surviving Corporation shall be
issued in respect thereof.

                                   ARTICLE III

                     COVENANTS OF The Surviving Corporation

     The Surviving Corporation covenants and agrees that, upon or before the
Effective Date:

     (a) it will qualify to do business as a foreign corporation in the State of
New York;

     (b) it may be served with process in the State of New York in any
proceeding for the enforcement of any obligation of UNIVEC or the Surviving
Corporation and irrevocably appoints the Secretary of State to accept service of
process in any such proceeding and directs the Secretary of State to mail a copy
of

<PAGE>

the process in such proceeding to UNIVEC, Inc., 999 Franklin Street, Garden
City, New York 11530; and

     (c) it will file any and all documents with the State of New York necessary
for the assumption by the Surviving Corporation of UNIVEC's tax liabilities to
the State of New York.


                                   ARTICLE IV

                                     GENERAL

     4.1 Termination and Abandonment. At any time prior to the Effective Date,
this Agreement may be terminated and the Merger abandoned by the respective
Board of Directors of UNIVEC or the Surviving Corporation if (a) the submission
to the shareholders specified in Article I hereof shall not have been satisfied
or waived by the respective Board of Directors of UNIVEC or the Surviving
Corporation, or (b) the respective Board of Directors if either UNIVEC or the
Surviving Corporation determines that in its sole discretion the Merger does not
appear to be in the best interests of either of the two corporations or their
respective shareholders or is otherwise not advisable.

     4.2 Amendment. This Agreement may be amended, modified, supplemented or
abandoned at any time (before or after shareholder approval) prior to the
Effective Date with the mutual consent of the Boards of Directors of UNIVEC and
the Surviving Corporation; provided, however, that this Agreement may not be
amended, modified or supplemented after it has been approved by the shareholders
of UNIVEC in any manner which, in the judgment of the Board of Directors of
UNIVEC, would have a material adverse effect on the rights of such shareholders
or in any manner not permitted under applicable law.

     4.3 Headings. The headings set forth herein are inserted for convenience or
reference only and are not intended to be part of, or to affect the meaning or
interpretation of, this Agreement.

     4.4 Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall constitute an original, and all of which, when
taken together, shall constitute one and the same instrument.


     4.5 Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware, except to the extent that the
laws of the State of New York shall mandatorily apply to the Merger.

     IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to
be executed on its behalf and attested by its officers hereunto duly authorized,
all as of the date and year

<PAGE>

first above written.

                                        UNIVEC, INC.
                                        (New York)


                                        By:  /s/  Joel Schoenfeld
                                             ------------------------------
                                                  Joel Schoenfeld
                                                  Chairman of the Board and
                                                  Chief Executive Officer



Attest:

          /s/  Flora Schoenfeld
          ---------------------
               Flora Schoenfeld
               Secretary


                                        UNIVEC, INC.
                                        (Delaware)


                                        By:  /s/  Joel Schoenfeld
                                             ------------------------------
                                                  Joel Schoenfeld
                                                  Chairman of the Board and
                                                  Chief Executive Officer



Attest:
          /s/  Flora Schoenfeld
          ---------------------
               Flora Schoenfeld
               Secretary

<PAGE>

                                                                       Exhibit A

                              CERTIFICATE OF MERGER

                                   UNIVEC INC.

                            (a New York Corporation)

                                       AND

                                  UNIVEC, INC.

                            (a Delaware Corporation)


     It is hereby certified that:

     1. The constituent corporations participating in the merger herein are:

          (a) UNIVEC Inc. ("UNIVEC"), which is incorporated under the laws of
the State of New York; and

          (b) UNIVEC, INC. (the "Surviving Corporation"), a wholly-owned
subsidiary of UNIVEC, which is incorporated under the laws of the State of
Delaware.

     2. An Agreement and Plan of Merger has been approved, adopted, certified,
executed, and acknowledged by each of the aforesaid constituent corporations in
accordance with the provisions of subsection (c) of Section 252 of the General
Corporation Law of the State of Delaware (the "GCL"), to wit, by UNIVEC in
accordance with the laws of the state of its incorporation and by the Surviving
Corporation in the same manner as is provided in Section 251 of the GCL.

     3. The name of the Surviving Corporation in the merger herein certified is
UNIVEC, Inc., which will continue its existence as the Surviving Corporation
upon the effective date of said merger pursuant to the provisions of the GCL.

     4. The Certificate of Incorporation of the Surviving Corporation, as now in
force and effect, shall continue to be the Certificate of Incorporation of the
Surviving Corporation until amended and changed pursuant to the provisions of
the GCL.

     5. The executed Agreement and Plan of Merger between the aforesaid
constituent corporations is on file at the principal place of business of the
Surviving Corporation, the address of which is as follows:

          UNIVEC, Inc.
          999 Franklin Avenue
          Garden City, New York 11530

<PAGE>

     6. A copy of the Agreement and Plan of Merger will be furnished by the
Surviving Corporation, on request, and without cost, to any stockholder of each
of the constituent corporations.

     7. The authorized capital stock of UNIVEC consists of 200 shares of Common
Stock, without par value.


Dated:    October 7, 1996

                                        UNIVEC, Inc. (a New York corporation)
                                        ("UNIVEC")


                                        By:  /s/  Joel Schoenfeld
                                             ------------------------------
                                                  Joel Schoenfeld
                                                  Chairman of the Board and
                                                  Chief Executive Officer


Dated:    October 7, 1996


                                        UNIVEC, Inc. (a Delaware corporation)
                                        (the Surviving Corporation)



                                        By:  /s/  Joel Schoenfeld
                                             ------------------------------
                                                  Joel Schoenfeld
                                                  Chairman of the Board and
                                                  Chief Executive Officer

                                       2

<PAGE>

                                                                       Exhibit B

                              CERTIFICATE OF MERGER

                                       of

                                   UNIVEC INC.

                            (a New York Corporation)

                                      into

                                  UNIVEC, INC.

                            (a Delaware Corporation)

               (Under Section 907 of the Business Corporation Law)


     It is hereby certified, upon behalf of each of the constituent corporations
herein named, as follows:

     FIRST: The Board of Directors of each of the constituent corporations has
duly adopted a plan of merger setting forth the terms and conditions of the
merger of said corporations.

     SECOND: The name of the foreign constituent corporation, which is to be the
surviving corporation, and which is hereinafter referred to as the "Surviving
Corporation", is UNIVEC, Inc. The jurisdiction of its incorporation is Delaware;
and the date of its incorporation therein is October 4, 1996.

     No Application for Authority in the State of New York of the Surviving
Corporation to transact business as a foreign corporation therein was filed by
the Department of State of the State of New York; and it is not to do business
in the State of New York until an Application for Authority shall have been
filed by the Department of State of the State of New York.

     THIRD: The name of the domestic constituent corporation, which is being
merged into the Surviving Corporation, and which is hereinafter referred to as
the "Merged Corporation", is UNIVEC Inc., which is the sole stockholder of the
Surviving Corporation. The date upon which the Merged Corporation's certificate
of incorporation was filed by the Department of State was August 18, 1992.

     FOURTH: As to each constituent corporation, the plan of merger sets forth
the designation and number of outstanding shares of each class and series, the
specification of the classes and series entitled to vote on the plan of merger,
and the specification of each class and series entitled to vote as a class on
the plan of merger, as follows:

<PAGE>

                                  UNIVEC, INC.
                           (the Surviving Corporation)

Designation of         Number of         Designation        Classes and
each outstanding       outstanding       of class and       series entitled
class and series       shares of         series enti-       to vote as a
of shares              each class        tled to vote       class
- ----------------       -----------       ------------       -----
Common Stock              100            Common Stock       Common Stock


                                   UNIVEC INC.
                            (the Merged Corporation)
                                                          
Designation of         Number of         Designation        Classes and
each outstanding       outstanding       of class and       series entitled
class and series       shares of         series enti-       to vote as a
of shares              each class        tled to vote       class
- ----------------       -----------       ------------       -----
Common Stock           103.3526          Common Stock       Common Stock


     FIFTH: The merger herein certified was authorized in respect of the Merged
Corporation by the vote of the holders of at least two-thirds of all outstanding
shares of the corporation entitled to vote on the plan of merger under the
certificate of incorporation. No class of stock of the Merged Corporation is
denied voting power in its certificate of incorporation.

     SIXTH: The merger herein certified is permitted by the laws of the State of
Delaware, the jurisdiction of incorporation of the Surviving Corporation, and is
in compliance with said laws.

     SEVENTH: The Surviving Corporation agrees that it may be served with
process in the State of New York in any action or special proceeding for the
enforcement of any liability or obligation of the Merged Corporation, for the
enforcement of any liability or obligation of the Surviving Corporation for
which the Surviving Corporation is previously amenable to suit in the State of
New York, and for the enforcement, as provided in the Business Corporation Law
of the State of New York ("BCL"), of the right of shareholders of the Merged
Corporation to receive payment for their shares against the Surviving
Corporation.

     EIGHTH: The Surviving Corporation agrees that, subject to the provisions of
section 623 of the BCL, it will promptly pay to the shareholders of the Merged
Corporation the amount, if any, to which they shall be entitled under the
provisions of the BCL relating to the rights of shareholders to receive payment
for their shares.

<PAGE>

     NINTH: The Surviving Corporation hereby designates the Secretary of State
of the State of New York as its agent upon whom process against it may be served
in the manner set forth in paragraph (b) of section 306 of the BCL in any action
or special proceeding. The post office address outside the State of New York to
which the Secretary of State shall mail a copy of any process against the
Surviving Corporation served upon him is:

          999 Franklin Street
          Garden City, New York 11530

     IN WITNESS WHEREOF, we have subscribed this document on the date set forth
below and do hereby affirm, under the penalties of perjury, that the statements
contained herein have been examined by us and are true and correct.

Dated:    October   , 1996
                                        UNIVEC, INC.
                                        (the Surviving Corporation)


                                        By:  /s/  Joel Schoenfeld
                                             ---------------------------
                                                  Joel Schoenfeld
                                                  Chairman of the Board and
                                                  Chief Executive Officer


                                             /s/  Flora Schoenfeld
                                             ---------------------------
                                                  Flora Schoenfeld
                                                  Secretary



                                        UNIVEC, INC.
                                        (the Merged Corporation)


                                        By:  /s/  Joel Schoenfeld
                                             ---------------------------
                                                  Joel Schoenfeld
                                                  Chairman of the Board and
                                                  Chief Executive Officer


                                             /s/  Flora Schoenfeld
                                             ---------------------------
                                                  Flora Schoenfeld
                                                  Secretary

<PAGE>




















                                  UNIVEC, INC.

                                       AND

                            MAIDSTONE FINANCIAL, INC.

                                  UNDERWRITERS'
                                WARRANT AGREEMENT
<PAGE>







                                                         12

                  UNDERWRITERS' WARRANT AGREEMENT dated as of
__________________, 1997 by and between UNIVEC, INC. (the "Company") and
MAIDSTONE FINANCIAL, INC. ("Maidstone" or the "Representative"), as the
Representative of the underwriting group. The underwriting group is referred to
collectively herein as the "Underwriters.

                                   WITNESSETH:

                  WHEREAS, the Company proposes to issue to the Underwriters
warrants (the "Underwriters' Warrants") to purchase up to 150,000 shares of the
Company's common stock, par value $.001 per share (the "Common Stock") and/or up
to 225,000 Class A Redeemable Common Stock Purchase Warrants (the "Redeemable
Warrants") each exercisable to purchase one share of Common Stock.

                  WHEREAS, the Underwriters have agreed, pursuant to the
underwriting agreement (,the "Underwriting Agreement") dated ________________,
1997, by and between the Underwriters and the Company, to act as the
underwriters in connection with the Company's proposed initial public offering
(the "Initial Public Offering") of 1,500,000 shares of Common Stock and
2,250,000 Redeemable Warrants (the "Offering Securities"), such Offering
Securities being; identical to the securities issuable upon exercise of the
Underwriters' Warrants (the "Securities"); and

                  WHEREAS, the Underwriters' Warrants to be issued pursuant to
'this Agreement will be issued on the First Closing Date (as such term is
defined in the Underwriting Agreement) by the Company to the Underwriters in
consideration for, and as part of, the Underwriters' compensation in connection
with the Underwriters acting as the underwriters pursuant to the Underwriting
Agreement;

                                       1
<PAGE>

                  NOW, THEREFORE, in consideration of the promises, the payment
by the Underwriters to the Company of Ten Dollars ($10.00), the agreements
herein set forth and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto agree as
follows:

                  1. Grant. The Holder (as defined in Section 3 below) is hereby
granted the right to purchase, at any time from ________________, 1998 until
5:00 p.m., New York time, on ______________, 2002, an aggregate of up to 150,000
shares of Common Stock and/or 225,000 Redeemable Warrants, at an initial
purchase price (subject to adjustment as provided in Sect@ion 8 hereof) of $4.20
per share of Common Stock and $.12 per Redeemable Warrant (120% of the Initial
Public Offering price per Offering Security), subject to the terms and
conditions of this Agreement. The Securities issuable upon exercise of the
Underwriters' Warrants are sometimes referred to herein as the "Underwriters'
Securities. "

                  2. Warrant Certificates. The warrant certificate (the
"Underwriters' Warrant Certificate") to be delivered pursuant to this Agreement
shall be in the form set forth in Exhibit A attached hereto and made a part
hereof, with such appropriate insertions, omissions, substitutions, and other
variations as required or permitted by this Agreement.

                  3. Exercise of Underwriters' Warrants. The Underwriters'
Warrants are exercisable during the term set forth in Section 1 hereof payable
by certified or cashier's check or money order in lawful money of the United
States. Upon surrender of an Underwriter's Warrant Certificate with the annexed
Form of Election to Purchase duly executed, together with payment of the
Purchase Price (as defined in Section 6 hereof) for the Underwriter's Securities

                                       2
<PAGE>

(and such other amounts, if any, arising pursuant to Section 4 hereof) at the
Company's principal office in New York located at 999 Franklin Avenue, Garden
City, New York 11530, the registered holder of an Underwriters' Warrant
Certificate ("Holder" or "Holders") shall be entitled to receive a certificate
or certificates for the Underwriters' Securities so purchased. The purchase
rights represented by each Underwriters' Warrant Certificate are exercisable at
the option of the Holder or Holders thereof, in whole or in part as to
Underwriters' Securities. The Underwriters' Warrants may be exercised to
purchase all or any part of the Underwriters' Securities represented thereby. In
the case of the purchase of less than all the Underwriters' Securities
purchasable on the exercise of the Underwriters' Warrants represented by an
Underwriters' Warrant Certificate, the Company shall cancel the Underwriters'
Warrant Certificate represented thereby upon the surrender thereof and shall
execute and deliver a new Underwriters' Warrant Certificate of like tenor for
the balance of the Underwriters' Securities purchasable thereunder.

                  4. Issuance of Certificates. Upon the exercise of the
Underwriters' Warrants and payment of the Purchase Price therefor, the issuance
of certificates representing the Underwriters' Securities or other securities,
properties or rights underlying such Underwriters' Warrants, shall be made
forthwith (and in any event within five (5) business days thereafter) without
further charge to the Holder thereof, and such certificates shall (subject to
the provisions of Sections 5 and 7 hereof) be issued in the name of, or in such
names as may be directed by, the Holder thereof, provided, however, that the
Company shall not be required to pay any tax which may be payable in respect of
any transfer involved in the issuance and delivery of any such certificates in a
name other than that of the Holder, and the Company shall not be required to

                                       3
<PAGE>

issue or deliver such certificates unless or until the person or persons
requesting the issuance thereof shall have paid to the Company the amount of
such tax or shall have established to the satisfaction of the Company that such
tax has been paid. The Underwriters' Warrant Certificates and the certificates
representing the Underwriters' Securities or other securities, property or
rights (if such property or rights are represented by certificates) shall be
executed on behalf of the Company by the manual or facsimile signature of the
then present Chairman or Vice Chairman of the Board of Directors or President or
Vice President of the Company, attested to by the manual or facsimile signature
of the then present Secretary or Assistant Secretary or Treasurer or Assistant
Treasurer of the Company. Underwriters' Warrant Certificates shall be dated the
date of issuance thereof by the Company upon initial issuance, transfer or
exchange.

                  5. Restriction On Transfer of Underwriters' Warrants. The
Holder of an Underwriters' Warrant Certificate (and its Permitted Transferee, as
defined below), by its acceptance thereof, covenants and agrees that the
Underwriters' Warrants are being acquired as an investment and not with a view
to the distribution thereof; that the Underwriters' Warrants may be sold,
transferred, assigned, hypothecated or otherwise disposed of, in whole or in
part, to any person (a "Permitted Transferee"), provided such transfer,
assignment, hypothecation or other disposition is made in accordance with the
provisions of the Securities Act of 1933, as amended (the "Act"); and provided,
further, that until _________________, 1998 (one year following the effective
date of the Initial Public Offering), only officers and partners of the
Underwriters, or any Initial Public Offering selling group member and their
respective officers and partners, shall be Permitted Transferees.

                                       4
<PAGE>

                  6. Purchase Price.

                     (a) Initial and Adjusted Purchase Price. Except as
otherwise provided in Section 8 hereof, the initial purchase price of the
Underwriters' Securities shall be $4.20 per share of Common Stock and $.12 per
Redeemable Warrant. The adjusted purchase price shall be the price which shall
result from time to time from any and all adjustments of the initial purchase
price in accordance with the provisions of Section 8 hereof. (b) Purchase Price.
The term "Purchase Price" herein shall mean the initial purchase price or the
adjusted purchase price, depending upon the context.

                  7. Registration Rights.

                     (a) Registration Under the Securities Act of 1933. The
Underwriters' Warrants have not been registered under the Act. The Underwriters'
Warrant Certificates shall bear the following legend:

                     The securities represented by this certificate have not
                     been registered under the Securities Act of 1933, as
                     amended (the "Act"), and may not be offered for sale or
                     sold except pursuant to (1) an effective registration
                     statement under the Act, or (ii) an opinion of counsel, if
                     such opinion and counsel shall be reasonably satisfactory
                     to counsel to the issuer, that an exemption from
                     registration under the Act is available.

                     (b) Demand Registration. (1) At any time commencing on the
first anniversary of and expiring on the fifth anniversary of the effective date
of the Company's Registration Statement relating to the Initial Public Offering
(the "Effective Date"), the Holders of a Majority (as hereinafter defined) in
interest of the Underwriters' Warrants, or the Majority in interest of the
Underwriters' Securities (assuming the exercise of all of the Underwriters'

                                       5
<PAGE>

Warrants) shall have the right, exercisable by written notice to the Company, to
have the Company prepare and file with the U.S. Securities and Exchange
Commission (the "Commission"), solely on one (1) occasion, a registration
statement on Form SB-2 (or other appropriate form), and such other documents,
including a prospectus, as may be necessary in the opinion of both counsel for
the Company and counsel for the Holders, in order to comply with the provisions
of the Act, so as to permit a public offering and sale, for a period of nine (9)
months, of the Underwriters' Securities by such Holders and any other Holders of
the Underwriters' Warrants and/or the Underwriters' Securities who notify the
Company within fifteen (15) business days after receipt of the notice described
in Section 7(b)(2). The Holders of the Underwriters' Warrants may demand
registration without exercising the Underwriters' Warrants, and are never
required to exercise same.

                         (2) The Company covenants and agrees to give written
notice of any registration request under this Section 7(b) by any Holders to all
other registered Holders of the Underwriters' Warrants and the Underwriters'
Securities within ten (10) business days from the date of the receipt of any
such registration request.

                         (3) For purposes of this Agreement, the term "Majority"
in reference to the Holders of the Underwriters' Warrants or Underwriters'
Securities, shall mean in excess of fifty percent (50%) of the then outstanding
Underwriters' Warrants or Underwriters' Securities that (i) are not held by the
Company, an affiliate, officer, employee or agent thereof or any of their
respective affiliates, members of their family, persons acting as nominees or in
conjunction therewith, or (ii) have not been resold to the public pursuant to a
registration statement filed with the Commission under the Act.

                                       6
<PAGE>

                  (c) Piggyback Registration. (1) If, at any time within the
period commencing on the first anniversary and expiring on the fifth anniversary
of the Effective Date, the Company should file a registration statement with the
Commission under the Act (other than in connection with a merger or other
business combination transaction or pursuant to Form S-8) it wi 'II give written
notice at least thirty (30) calendar days prior to the filing of each such
registration statement to the Underwriters and to all other Holders of the
Underwriters' Warrants and/or the Underwriters' Securities of its intention to
do so. If either of the Underwriters or other Holders of the Underwriters'
Warrants and/or the Underwriters' Securities notify the Company within twenty
(20) calendar days after receipt of any such notice of its or their desire to
include any Underwriters' Securities in such proposed registration statement,
the Company shall afford the Underwriters and such Holders of the Underwriters'
Warrants and/or Underwriters' Securities the opportunity to have any such
Underwriters' Securities registered under such registration statement.
Notwithstanding the provisions of this Section 7(c)(1) and the provisions of
Section 7(d), the Company shall have the right at any time after it shall have
given written notice pursuant to this Section 7(c)(1) (irrespective of whether a
written request for inclusion of any such securities shall have been made) to
elect not to file any such proposed registration statement, or to withdraw the
same after the filing but prior to the effective date thereof.

                         (2) If the underwriter of an offering to which the
above piggyback rights apply objects to such rights, such objection shall
preclude such inclusion. However, in such event, the Company will, within nine
(9) months of completion of such subsequent underwriting, file at the expense of
the Company, a registration statement so as to permit a public offering and

                                       7
<PAGE>

sale, for a period of nine (9) months, of such excluded Underwriters'
Securities, which shall be in addition to any registration statement required to
be filed pursuant to Section 7(b).

                     (d) Covenants of the Company With Respect to Registration.
In connection with any registrations under Sections 7(b) and 7(c) hereof, the
Company covenants and agrees as follows:

                         (1) The Company shall use its best efforts to file a
registration statement within forty-five (45) calendar days of receipt of any
demand therefor pursuant to Section 7(b); provided, however, that the Company
shall not be required to produce audited or unaudited financial statements for
any period prior to the date such financial statements are required to be filed
in a report on Form 10-KSB or Form 10-QSB, as the case may be. The Company shall
use its best efforts to have any registration statement declared effective at
the earliest possible time, and shall furnish each Holder desiring to sell
Underwriters' Securities such number of prospectuses as shall reasonably be
requested.

                         (2) The Company shall pay all costs (excluding fees and
expenses of Holders' counsel and any underwriting discounts or selling fees,
expenses or commissions), fees and expenses in connection with the first
registration statement filed pursuant to Sections 7(b) and 7(c) hereof
including, without limitation, the Company's legal and accounting fees, printing
expenses, blue sky fees and expenses.

                         (3) The Company will use its best efforts to qualify or
register the Underwriters' Securities included in a registration statement for
offering and sale under the securities or blue sky laws of such states as
reasonably are requested by the Holders, provided that the Company shall not be

                                       8
<PAGE>

obligated to execute or file any general consent to service of process or to
qualify as a foreign corporation to do business under the laws of any such
jurisdiction.

                         (4) The Company shall indemnify the Holders of the
Underwriters' Securities to be sold pursuant to any registration statement and
each person, if any, who controls such Holders within the meaning of Section 15
of the Act or Section 20(a) of the Securities Exchange Act of 1934, as amended
(the "Exchange Act"), against all loss, claim, damage, expense or liability
(including all expenses reasonably incurred in investigating, preparing or
defending against any claim whatsoever) to which any of them may become subject
under the Act, the Exchange Act or otherwise, arising from such registration
statement, but only to the same extent and with the same effect as the
provisions pursuant to which the Company has agreed to indemnify the
Underwriters contained in Section 8 of the Underwriting Agreement.

                         (5) The Holders of the Underwriters' Securities to be
sold pursuant to a registration statement, and their successors and assigns,
shall indemnify the Company, its officers and directors and each person, if any,
who controls the Company within the meaning of Section 15 of the Act or Section
20(a) of the Exchange Act, against all loss, claim, damage or expense or
liability to which they may become subject under the Act, the Exchange Act or
otherwise, arising from information furnished by or on behalf of such Holders,
or their successors or assigns, for specific inclusion in such registration
statement to the same extent and with the same effect as the provisions
contained in Section 8 of the Underwriting Agreement pursuant to which the
Underwriters have agreed to indemnify the Company.

                                       9
<PAGE>

                         (6) Nothing contained in this Agreement shall be
construed as requiring the Holders to exercise their Underwriters' Warrants
prior to the initial filing of any registration statement or the effectiveness
thereof.

                         (7) The Company shall not be entitled to include any
securities other than the Under-writers' Securities in any registration
statement filed pursuant to Section 7(b) hereof without the prior written
consent, which consent shall not be unreasonably withheld, of the Holders of the
Underwriters' Warrants and Underwriters' Securities representing a Majority of
such securities (assuming exercise of all of the Underwriters' Warrants).

                         (8) The Company shall furnish to a designated
representative of the Holders participating in the offering and to each
underwriter, if any, a signed counterpart, addressed to the Company or the
underwriter of (i) an opinion of counsel to the Company, dated the effective
date of such registration statement (and if such registration includes an
underwritten public offering, an opinion dated the date of the closing under the
underwriting agreement), and (ii) if such registration includes an underwritten
public offering a copy of the "cold comfort" letter dated the effective date of
such registration statement signed by each independent public accountant who has
issued a report on the Company's financial statements included in such
registration statement, in each case covering substantially the same matters
with respect to such registration statement (and the prospectus included
therein) and, in the case of such accountants' letters. with respect to events
subsequent to the date of such financial statements, as are duly covered in
opinions of issuer's counsel and in accountants' letters, with respect to
customary events subsequent to the date of such financial statements, as are
customarily covered in opinions of issuer's counsel and in accountants' letters
delivered to underwriters in underwritten public offerings of securities.

                                       10
<PAGE>

                         (9) The Company shall as soon as practicable after the
effective date of the registration statement, and in any event within 15 months
thereafter, make "generally available to its security holders" (within the
meaning of Rule 158 under the Act) an earnings statement (which need not be
audited) complying with Section 1 (a) of the Act and covering a period of at
least 12 consecutive months beginning after the effective date of the
registration statement.

                         (10) The Company shall deliver promptly to each Holder
participating in the offering requesting the correspondence described below and
any managing underwriter copies of all correspondence between the Commission and
the Company, its counsel or auditors with respect to the registration statement
and permit each Holder and underwriter to do such investigation, upon reasonable
advance notice, with respect to information contained in or omitted from the
registration statement as it deems reasonably necessary to comply with
applicable securities laws or rules of the National Association of Securities
Dealers, Inc. ("NASD"). Such investigation shall include access to books,
records and properties and opportunities to discuss the business of the Company
with its officers and independent auditors, all to such reasonable extent and at
such reasonable times and as often as any such Holder shall reasonably request.

                         (11) The Company shall enter into an underwriting
agreement with the managing underwriter selected for such underwriting by
Holders holding a Majority of the Underwriters' Securities requested to be
included in such underwriting, provided, however that (i) such managing
underwriter shall be reasonably acceptable to the Company, except that in
connection with an offering for which the Holders have piggyback rights, the

                                       11
<PAGE>

Company shall have the sole right to select the managing underwriter or
underwriters, and (ii) the Holders shall be responsible for any selling fees or
commissions in connection with such underwriting. Such underwriting agreement
shall be satisfactory in form and substance to the Company, a Majority of such
Holders (in respect of a registration under Section 7(b) only) and such managing
underwriter, and shall contain such representations, warranties and covenants by
the Company and such other terms as are customarily contained in agreements of
that type used by the managing underwriter. The Holders shall be parties to any
underwriting agreement relating to an underwritten sale of their Underwriters'
Securities and may, at their option, require that any or all the
representations, warranties and covenants of the Company to or for the benefit
of such underwriters shall also be made to and for the benefit of such Holders.
Such Holders shall not be required to make any representations or warranties to
or agreements with the Company or the underwriters except as they may relate to
such Holders and their intended methods of distribution.

                  e. Further Registrations. The Company will cooperate with the
Holders of the Underwriters' Warrants and Underwriters' Securities in preparing
and signing any registration statement, in addition to the registration
statements discussed above, required in order to sell or transfer the
Underwriters' Securities and will supply all information required therefor, but
all of such additional registration statement expenses including legal and
accounting fees will be prorated between the Company and the Holders of the
Underwriters' Warrants and Underwriters' Securities according to the aggregate
sales price of the securities being issued, and if the Company is not issuing
any securities pursuant to such registration statement, such expenses will be
borne entirely by the Holders of the Underwriters' Warrants and the
Underwriters' Securities. The provisions of Section 7(d) other than subsection
(2) shall apply to any such registration statement.

                                       12
<PAGE>

                  8. Adjustments to Purchase Price and Number of Securities.

                     (a) Computation of Adjusted Purchase Price. Except as
hereinafter provided, in case the Company shall at any time after the date
hereof issue or sell any shares of Common Stock (other than the issuances
referred to in Section 8(g) hereof), including shares held in the Company's
treasury, for a consideration per share less than the lesser of the Purchase
Price in effect immediately prior to the issuance or sale of such shares or the
"Market Price" (as defined in Section 8(a)(6) hereof) per share of Common Stock
on the date immediately prior to the issuance or sale of such shares, or without
consideration, then forthwith upon any such issuance or sale, the Purchase Price
shall (until another such issuance or sale) be reduced to the price (calculated
to the nearest full cent) determined by dividing (1) the product of (a) the
Purchase Price in effect immediately before such issuance or sale and (b) the
sum of (i) the total number of shares of Common Stock outstanding immediately
prior to such issuance or sale, and (ii) the number of shares determined by
dividing (A) the aggregate consideration, if any, received by the Company upon
such sale or issuance, by (B) the lesser of (x) the Market Price, and (y) the
Purchase Price, in effect immediately prior to such issuance or sale; by (2) the
total number of shares of Common Stock outstanding immediately after such
issuance or sale provided, however, that in no event shall the Purchase Price be
adjusted pursuant to this computation to an amount in -excess of the Purchase
Price in effect immediately prior to such computation, except in the case of a
combination of outstanding shares of Common Stock, as provided by Section 8(c)
hereof.

                                       13
<PAGE>

                     For the purposes of this Section 8, the term "Purchase
Price" shall mean the Purchase Price of the Underwriters' Securities set forth
in Section 6 hereof, as adjusted from time to time pursuant to the provisions of
this Section 8.

                     For the purposes of any computation to be made in
accordance with this Section 8(a), the following provisions shall be applicable:

                         (1) In case of the issuance or sale of shares of Common
Stock for a consideration part or all of which shall be cash, the amount of the
cash consideration therefor shall be deemed to be the amount of cash received by
the Company for such shares (or, if shares of Common Stock are offered by the
Company for subscription, the subscription price), before deducting therefrom
any compensation paid or discount allowed in the sale or purchase thereof by
underwriters or dealers or others performing similar services, or any expenses
incurred in connection therewith.

                         (2) In case of the issuance or sale (otherwise than as
a dividend or other distribution on any stock of the Company) of shares of
Common Stock for a consideration part or all of which shall be other than cash,
the amount of the consideration therefor other than cash shall be deemed to be
the value of such consideration as determined in good faith by the Board of
Directors of the Company.

                         (3) Shares of Common Stock issuable by way of dividend
or other distribution on any stock of the Company shall be deemed to have been
issued immediately after the opening of business on the day following the record
date for the determination of stockholders entitled to receive such dividend or
other distribution and shall be deemed to have been issued without
consideration.

                                       14
<PAGE>

                         (4) The reclassification of securities of the Company
other than shares of Common Stock into securities including shares of Common
Stock shall be deemed to involve the issuance of such shares of Common Stock for
a consideration other than cash immediately prior to the close of business on
the date fixed for the determination of security holders entitled to receive
such shares, and the value of the consideration allocable to such shares of
Common Stock shall be determined as provided in Section 8(a)(2).

                         (5) The number of shares of Common Stock at any one
time deemed to be issued and outstanding, as determined for the purposes of
Sections 8(b)(1) and 8(b)(2) hereof, shall include the aggregate number of
shares of Common Stock issued or issuable (subject to readjustment upon the
actual issuance thereof) upon the exercise of options, rights, warrants and upon
the conversion or exchange of convertible or exchangeable securities.

                         (6) As used herein, the phrase "Market Price" at any
date shall be deemed to be the last reported sale price, or, in the case no such
reported sale takes place on such day, the average of the last reported sales
prices for the last three (3) trading days, in either case as officially
reported by the principal securities exchange on which the Common Stock is
listed or admitted to trading, or, if the Common Stock is not listed or admitted
to trading on any national securities exchange, the average closing bid price as
furnished by the NASD through the NASD Automated Quotation System ("NASDAQ") or
similar organization if NASDAQ is no longer reporting such information, or if
the Common Stock is not quoted on NASDAQ, as determined in good faith by
resolution of the Board of Directors of the Company, based on the best
information available to it.

                                       15
<PAGE>

                     (b) Options, Rights, Warrants and Convertible and
Exchangeable Securities. Except in the case of the Company issuing rights to
subscribe for shares of Common Stock distributed to all the stockholders of the
Company and Holders of Underwriters' Warrants, if the Company shall at any time
after the date hereof issue options, rights or warrants to purchase shares of
Common Stock, or issue any securities convertible into or exchangeable for
shares of Common Stock (other than the issuances referred to in Section 8(g)
hereof), (i) for a consideration per share less than the lessor of (a) the
Purchase Price in effect immediately prior to the issuance of such options,
rights or warrants, or such convertible or exchangeable securities or (b) the
Market Price, or (ii) without consideration, the Purchase Price in effect
immediately prior to the issuance of such options, rights or warrants, or such
convertible or exchangeable securities, as the case may be, shall be reduced to
a price determined by making a computation in accordance with the provisions of
Section 8(a) hereof, provided that:

                         (1) The aggregate maximum number of shares of Common
Stock issuable under such options, rights or warrants shall be deemed to be
issued and outstanding at the time such options, rights or warrants were issued,
and for a consideration equal to the minimum purchase price per share provided
for in such options, rights or warrants at the time of issuance, plus the
consideration (determined in the same manner as consideration received on the
issue or sale of shares in accordance with the terms of the Underwriters'
Warrants), if any, received by the Company for such options, rights or warrants;
provided, however, that upon the expiration or other termination of such
options, rights or warrants, if any thereof shall not have been exercised, the
number of shares of Common Stock deemed to be issued and outstanding pursuant to
this Section 8(b)(1) (and for the purposes of Section 8(a)(5) hereof) shall be

                                       16
<PAGE>

reduced by such number of shares as to which options, warrants and/or rights
shall have expired or terminated unexercised, and such number of shares shall no
- -longer be deemed to be issued and outstanding, and the Purchase Price then in
effect shall forthwith be readjusted and thereafter be the price which it would
have been had adjustment been made on the basis of the issuance only of shares
actually issued or issuable upon the exercise of those options, rights or
warrants as to which the exercise rights shall not be expired or terminated
unexercised.

                         (2) The aggregate maximum number of shares of Common
Stock issuable upon conversion or exchange of any convertible or exchangeable
securities shall be deemed to be issued and outstanding at the time of issuance
of such securities, and for a consideration equal to the consideration
(determined in the same manner as consideration received on the issue or sale of
shares of Common Stock in accordance with the terms of the Underwriters'
Warrants) received by the Company for such securities, plus the minimum
consideration, if any, receivable by the Company upon the conversion or exchange
thereof; provided, however, that upon the termination of the right to convert or
exchange such convertible or exchangeable securities (whether by reason of
redemption or otherwise), the number of shares deemed to be issued and
outstanding pursuant to this Section 8(b)(2) (and for the purpose of Section
8(a)(5) hereof) shall be reduced by such number of shares as to which the
conversion or exchange rights shall have expired or terminated unexercised, and
such number of shares shall no longer be deemed to be issued and outstanding and
the Purchase Price then in effect shall forthwith be readjusted and thereafter
be the price which it would have been had adjustment been made on the basis of
the issuance only of the shares actually issued or issuable upon the conversion

                                       17
<PAGE>

or exchange of those convertible or exchangeable securities as to which the
conversion or exchange rights shall not have expired or terminated unexercised.

                         (3) If any change shall occur in the price per share
provided for in-any of the options, rights or warrants referred to in Section
8(b)(1), or in the price per share at which the securities referred to in
Section 8(b)(2) are convertible or exchangeable, such options, rights or
warrants or conversion or exchange rights, as the case may be, shall be deemed
to have expired or terminated on the date when such price change became
effective in respect of shares not theretofore issued pursuant to the exercise
or conversion or exchange thereof, and the Company shall be deemed to have
issued upon such date new options, rights or warrants or convertible or
exchangeable securities at the new price in respect of the number of shares
issuable upon the exercise of such options, rights or warrants or the conversion
or exchange of such convertible or exchangeable securities.

                     (c) Subdivision and Combination. In case the Company shall
at any time issue any shares of Common Stock in connection with a stock dividend
in shares of Common Stock or subdivide or combine the outstanding shares of
Common Stock, the Purchase Price shall forthwith be proportionately decreased in
the case of a stock dividend or a subdivision or increased in the case of a
combination.

                     (d) Adjustment in Number of Securities. Upon each
adjustment of the Purchase Price pursuant to the provisions of this Section 8,
the number of Underwriters' Securities issuable upon the exercise of the
Underwriters' Warrant shall be adjusted to the nearest whole share by
multiplying a number equal to the Purchase Price in effect immediately prior to
such adjustment by the number of Underwriters' Securities issuable upon exercise

                                       18
<PAGE>

of the Underwriters' Warrants immediately prior to such adjustment and dividing
the product so obtained by the adjusted Purchase Price.

                     (e) Definition of Common Stock. For the purpose of this
Agreement, the term "Common Stock" shall mean the class of stock designated as
Common Stock in the Articles of Incorporation, of the Company as it may be
amended as of the date hereof.

                     (f) Reclassification, Merger or Consolidation. The Company
will not merge, reorganize or take any other action which would terminate the
Underwriters' Warrants without first making adequate provision for the
Underwriters' Warrants. In case of any reclassification or change of the
outstanding shares of Common Stock (other than a change in par value to no par
value, or from nor par value to par value, or as a result of a subdivision or
combination), or in case of any consolidation of the Company with, or merger of
the Company with, or merger of the Company into, another corporation (other than
a consolidation or merger in which the Company is the continuing corporation and
which does not result in any reclassification or change of the outstanding
Common Stock except a change as a result of a subdivision or combination of such
shares or a change in par value, as aforesaid), or in the case of a sale or
conveyance to another corporation or other entity of the property of the Company
as an entirety, the Holders of each Underwriters' Warrant then outstanding or to
be outstanding shall have the right thereafter (until the expiration of such
Underwriters' Warrant) to purchase, upon exercise of such Underwriters' Warrant,
the kind and number of shares of stock and other securities and property
receivable upon such reclassification, change, consolidation, merger, sale or
conveyance as if the Holders were the owner of the shares of Common Stock
underlying the Underwriters' Warrants immediately prior to any such events at a
price equal to the product of (x) the number of shares issuable upon exercise of

                                       19
<PAGE>

the Underwriters' Warrants and (y) the Purchase Price in effect immediately
prior to the record date for such reclassification, change, consolidation,
merger, sale or conveyance, as if such Holders had exercised the Underwriters'
Warrants. In the event of a consolidation, merger, sale or conveyance of
property, the corporation formed by such consolidation or merger, or acquiring
such property, shall execute and deliver to the Holders a supplemental
underwriter's warrant agreement to such effect. Such supplemental underwriter's
warrant agreement shall provide for adjustments which shall be identical to the
adjustments provided for in this Section 8. The provisions of this Section 8(f)
shall similarly apply to successive consolidations or mergers.

                     (g) No Adjustment of Purchase Price in Certain Cases.
Notwithstanding any provision to the contrary contained herein, no adjustment of
the Purchase Price shall be made:

                         (1) Upon the issuance or sale of (i) the Underwriters'
Warrants or the securities underlying the Underwriters' Warrants, (ii) the
securities sold pursuant to the Initial Public Offering or securities underlying
securities sold in the Initial Public Offering or securities to be sold in a
bona fide public offering pursuant to a firm commitment underwriting or
securities underlying securities sold in such firm commitment underwriting and
(iii) the shares issuable pursuant to the options, warrants, rights, stock
purchase agreements or convertible or exchangeable securities outstanding or in
effect on the date hereof as described in the prospectus relating to the Initial
Public Offering.

                         (2) If the amount of said adjustments shall aggregate
less than five ($.05) cents for one (1) share of Common Stock; provided,
however, that in such case any adjustment that would otherwise be required then

                                       20
<PAGE>

to be made shall be carried for-ward and shall be made at the time of and
together with the next subsequent adjustment which, together with any adjustment
so carried forward, shall aggregate at least five ($.05) cents for one (1) share
of Common Stock.

                  9. Exchange and Replacement of Warrant Certificates. Each
Underwriters' Warrant Certificate is exchangeable without expense, upon the
surrender thereof by the registered Holders at the principal executive office of
the Company, for a new Underwriters' Warrant Certificate of like tenor and date
representing in the aggregate the right to purchase the same number of
Underwriters' Securities in such denominations as shall be designated by the
Holders thereof at the time of such surrender.

                  Upon receipt by the Company of evidence reasonably
satisfactory to it of the loss, theft, destruction or mutilation of any
Underwriters' Warrant Certificate, and, in case of loss, theft or destruction,
of indemnity or security reasonably satisfactory to it, and reimbursement to the
Company of all reasonable expenses incidental thereto, and upon surrender and
cancellation of the Underwriters' Warrant Certificates, if mutilated, the
Company will make and deliver a new Underwriters' War-rant Certificate of like
tenor, in lieu thereof.

                  10. Elimination of Fractional Interests. The Company shall not
be required to issue certificates representing fractions of shares of Common
Stock and/or Redeemable Warrants upon the exercise of the Underwriters'
Warrants, nor shall it be required to issue scrip or pay cash in lieu of
fractional interests; provided, however, that if a Holder exercises all
Underwriters' Warrants held of record by such Holder the fractional interests
shall be eliminated by rounding any fraction to the nearest whole number of
shares of Common Stock or other securities, properties or rights.

                                       21
<PAGE>

                  11. Reservation and Listing of Securities. The Company shall
at all times reserve and keep available out of its authorized shares of Common
Stock, solely for the purpose of issuance upon the exercise of the Underwriters'
Warrants, such number of shares of Common Stock or other securities, properties
or rights as shall be issuable upon the exercise thereof and the exercise of the
Redeemable Warrants. The Company covenants and agrees that, upon exercise of the
Underwriters' Warrants and payment of the Purchase Price therefor, all the
shares of Common Stock and other securities issuable upon such exercise shall be
duly and validly issued, fully paid, non-assessable and not subject to the
preemptive rights of any stockholder. As long as the Underwriters' Warrants
shall be outstanding, the Company shall use its best efforts to cause the Common
Stock to be listed (subject to official notice of issuance) on all securities
exchanges on which the Common Stock issued in the Initial Public Offering may
then be listed or quoted.

                  12. Notices to Underwriters' Warrant Holders. Nothing
contained in this Agreement shall be construed as conferring upon the Holders
the right to vote or to consent or to receive notice as a stockholder in respect
of any meetings of stockholders for the election of directors or any other
matter, or as having any rights whatsoever as a stockholder of the Company. If,
however, at any time prior to the expiration of the Underwriters' Warrants and
their exercise, any of the following events shall occur:

                     (a) the Company shall take a record of the holders of its
shares of Common Stock for the purpose of entitling them to receive a dividend
or distribution payable otherwise than in cash, or a cash dividend or

                                       22
<PAGE>

distribution payable otherwise than out of current or retained earnings, as
indicated by the accounting treatment of such dividend or distribution on the
books of the Company; or

                     (b) the Company shall offer to all the holders of its
Common Stock any additional shares of capital stock of the Company or securities
convertible into or exchangeable for shares of capital stock of the Company, or
any option, right or warrant to subscribe therefor; or

                     (c) a dissolution, liquidation or winding up of the Company
(other than in connection with a consolidation or merger) or a sale of all or
substantially all of its property, assets and business as an entirety shall be
proposed; then, in any one or more of said events, the Company shall give
written notice of such event at least fifteen (15) calendar days prior to the
date fixed as a record date or the date of closing the transfer books for the
determination of the stockholders entitled to such dividend, distribution,
convertible or exchangeable securities or subscription rights, or entitled to
vote on such proposed dissolution, liquidation, winding up or sale. Such notice
shall specify such record date or the date of closing the transfer books, as the
case may be. Failure to give such notice or any defect therein shall not affect
the validity of any action taken in connection with the declaration or payment
of any such dividend, or the issuance of any convertible or exchangeable
securities, or subscription rights, options or warrants, or any proposed
dissolution, liquidation, winding up or sale.

                  13. Notices. All notices, requests, consents and other
communications hereunder shall be in writing and shall be deemed to have been
duly made when delivered, or mailed by registered or certified mail, return
receipt requested:

                                       23
<PAGE>

                     (a) If to the registered Holders of the Underwriters'
Warrants, to the address of such Holders as shown on the books of the Company;
or

                     (b) If to the Company to the address set forth in Section 3
hereof or to such other address as the Company may designate by notice to the
Holders.

                  14. Supplements and Amendments. The Company and the
Underwriters may from time to time supplement or amend this Agreement without
the approval of any Holders of Underwriters' Warrant Certificates (other than
the Underwriters) in order to cure any ambiguity, to correct or supplement any
provision contained herein which may be defective or inconsistent with any
provisions herein, or to make any other provisions in regard to matters or
questions arising hereunder which the Company and the Underwriters may deem
necessary or desirable and which the Company and the Underwriters deem shall not
adversely affect the interests of the Holders of Underwriters' Warrant
Certificates.

                  15. Binding Effect; Successors. All the covenants and
provisions of this Agreement shall be binding upon and inure to the benefit of
the Company, the Underwriters, the Holders and their respective successors and
assigns hereunder.

                  16. Termination. This Agreement shall terminate at the close
of business on _____________, 2002. Notwithstanding the foregoing, the
indemnification provisions of Section 7 shall survive such termination until the
close of business on the expiration of any applicable statute of limitations.

                  17. Governing Law; Submission to Jurisdiction. This Agreement
and each Underwriters' Warrant Certificate issued hereunder shall be deemed to
be a contract made under the laws of the State of New York and for all purposes
shall be construed in accordance with the laws of said state without giving

                                       24
<PAGE>

effect to the rules of said state governing the conflicts of laws. The Company,
the Underwriters and the Holders hereby each agree that any action, proceeding
or claim against it arising out of, or relating in any way to, this Agreement
shall be brought and enforced in the courts of the State of New York or of the
United States of America for the Southern District of New York, and irrevocably
submits to such jurisdiction, which jurisdiction shall be exclusive. The
Company, the Underwriters and the Holders hereby irrevocably waive any objection
to such exclusive Jurisdiction or inconvenient forum. Any such process or
summons to be served upon any of the Company, the Underwriters and the Holders
(at the option of the party bringing such action, proceeding or claim) may be
served by transmitting a copy thereof, by registered or certified mail, return
receipt requested, postage prepaid, addressed to it at the address set forth in
Section 13 hereof. Such mailing shall be deemed personal service and shall be
legal and binding upon the party so served in any action, proceeding or claim.

                  18. Entire Agreement, Modification. This Agreement (including
the Underwriting Agreement, to the extent portions thereof are referred to
herein) contains the entire understanding between the parties hereto with
respect to the subject matter hereof and thereof. Subject to Section 14, this
Agreement may not be modified or amended except by a writing duly signed by the
Company and the Holders of a Majority in Interest of the Underwriters'
Securities (for this purpose, treating all then outstanding Underwriters'
Warrants as if they had been exercised).

                  19. Severability. If any provision of this Agreement shall be
held to be invalid or unenforceable, such invalidity or unenforceability shall
not affect any other provision of this Agreement.

                                       25
<PAGE>

                  20. Captions. The caption headings of the Sections of this
Agreement are for convenience of reference only and are not intended, nor should
they be construed as, a part of this Agreement and shall be given no substantive
effect.

                  21. Benefits of this Agreement. Nothing in this Agreement
shall be construed to give to any person or corporation other than the Company
and the Underwriters and any other registered Holders of the Underwriters'
Warrant Certificates or Underwriters' Securities any legal or equitable right,
remedy or claim under this Agreement; and this Agreement shall be for the sole
and exclusive benefit of the Company and the Underwriters and any other Holders
of the Underwriter's Warrant Certificates or Underwriters' Securities.

                  22. Counterparts. This Agreement may be executed in any number
of counterparts and each of such counterparts shall for all purposes be deemed
to be an original, and such counterparts shall together constitute but one and
the same instrument.









                                       26
<PAGE>

                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be duly executed, as of the day and year first above written.

                                         UNIVEC, INC.


                                         By:
                                            ---------------------------------
                                             Joel Schoenfeld, President


                                         MAIDSTONE FINANCIAL, INC.



                                         By:
                                            ---------------------------------
                                             Name:
                                             Title:



                                       27
<PAGE>

                                    EXHIBIT A

                                  UNIVEC, INC.

                               WARRANT CERTIFICATE


THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), AND MAY NOT BE OFFERED FOR
SALE OR SOLD EXCEPT PURSUANT TO (i) AN EFFECTIVE REGISTRATION STATEMENT UNDER
THE ACT, OR (ii) AN OPINION OF COUNSEL, IF SUCH OPINION AND COUNSEL SHALL BE
REASONABLY SATISFACTORY TO COUNSEL TO THE ISSUER, THAT AN EXEMPTION FROM
REGISTRATION UNDER THE ACT IS AVAILABLE.

THE TRANSFER OR EXCHANGE OF THE WARRANTS REPRESENTED BY THIS CERTIFICATE IS
RESTRICTED IN ACCORDANCE WITH THE WARRANT AGREEMENT REFERRED TO HEREIN.

             EXERCISABLE COMMENCING _________________, 1998 THROUGH
              5:00 P.M., NEW YORK TIME ON __________________, 2002

No. UW-                                                     __________ Warrants



                  This Warrant Certificate certifies that registered holder of
____________ Warrants to purchase initially, at any time from ________________,
1998, until 5:00 p.m., New York time on ___________, 2002 (the "Expiration
Date"), up to 150,000 shares of Univec, Inc.'s (the "Company") Common Stock,
$.01 par value (the "Common Stock"), and/or up to 225,000 Redeemable Warrants
each exercisable to purchase one share of Common Stock (the "Common Stock
Warrants"), at a purchase price of $4.20 per share of Common Stock and $.12 per
Redeemable Warrant (the "Purchase Price"), upon the surrender of this Warrant
Certificate and payment of the applicable Purchase Price at an office or agency
of the Company, but subject to the conditions set forth herein and in the
underwriters' warrant agreement, dated as of _____________, 1997 (the "Warrant
Agreement"), by and between the Company and Maidstone Financial, Inc.
("Maidstone" or the "Representative"), as the Representative of the several
underwriters (the "Underwriting Group") named in the Underwriting Agreement,
dated _______________, 1997 between the Company and Maidstone. The Underwriting
Group is collectively referred to herein as the "Underwriters." Payment of the
Purchase Price shall be made by certified or cashier's check or money order
payable to the order of the Company.

                  No Warrant may be exercised after 5:00 p.m., New York time, on
the Expiration Date, at which time all Warrants evidenced hereby, unless
exercised prior thereto, shall thereafter be void.

                                       28
<PAGE>

                  The Warrants evidenced by this Warrant Certificate are part of
a duly authorized issue of Warrants issued pursuant to the Warrant Agreement
between the Company and the Underwriters, which Warrant Agreement is hereby
incorporated by reference in and made a part of this instrument and is hereby
referred to for a description of the rights, limitation of rights, obligations,
duties and immunities thereunder of the Company and the holders (the words
"holders" or "holder" meaning the registered holders or registered holder) of
the Warrants.

                  The Warrant Agreement provides that upon the occurrence of
certain events the respective Purchase Prices and the type and/or number of the
Company's securities issuable upon the exercise of these Warrants, may, subject
to certain conditions, be adjusted. In such event, the Company will, at the
request of the holder, issue a new Warrant Certificate evidencing the adjustment
in the Purchase Price and the number and/or type of securities issuable upon the
exercise of the Warrants; provided, however, that the failure of the Company to
issue such new Warrant Certificates shall not in any way change, alter, or
otherwise impair, the rights of the holder as set forth in the Warrant
Agreement.

                  Upon due presentment for registration of transfer of this
Warrant Certificate at an office or agency of the Company, a new Warrant
Certificate or Warrant Certificates of like tenor and evidencing in the
aggregate a like number of Warrants shall be issued to the transferee(s) in
exchange as provided herein, without any charge except for any tax or other
governmental charge imposed in connection with such transfer.

                  Upon the exercise of less than all of the Warrants evidenced
by this Certificate, the Company shall forthwith issue to the holder hereof a
new Warrant Certificate representing such number of unexercised Warrants.

                  The Company may deem and treat the registered holder(s) hereof
as the absolute owner(s) of this Warrant Certificate (notwithstanding any
notation of ownership or other writing hereon made by anyone), for the purpose
of any exercise hereof, and of any distribution to the holder(s) hereof, and for
all other purposes, and the Company shall not be affected by any notice to the
contrary.

                  All terms used in this Warrant Certificate which are defined
in the Warrant Agreement shall have the meanings assigned to them in the Warrant
Agreement.


                [THE REMAINDER OF PAGE INTENTIONALLY LEFT BLANK.]



                                       29
<PAGE>

                  IN WITNESS WHEREOF, the undersigned has executed this
certificate this day of __________, 1997.


                                               UNIVEC, INC.



                                               By:
                                                  ---------------------------
                                                  Joel Schoenfeld, CEO



ATTEST:



By:
   -----------------------

                                       30
<PAGE>


                               FORM OF ASSIGNMENT

             (To be executed by the registered holder if such holder
                  desires to transfer the Warrant Certificate.)


                  FOR VALUE RECEIVED _________________________________________
hereby sells, assigns and transfers unto_____________________________


                  (Please print name and address of transferee)



this Warrant Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint __________________________
Attorney, to transfer the within Warrant Certificate on the books of Univec,
Inc., with full power of substitution.

Dated:
      -----------------------

                                 Signature
                                          ----------------------------------

                                 (Signature must conform in all respects to the
                                 name of the holder as specified on the face
                                 of the Warrant Certificate.)




                                 --------------------------------------------
                                            (Insert Social Security or Other
                                             Identifying Number of Holders)


                                       31
<PAGE>

                          FORM OF ELECTION TO PURCHASE


The undersigned hereby irrevocably elects to exercise the right, represented by
this Warrant Certificate, to purchase shares of Common Stock and/or Redeemable
Warrants and herewith tenders in payment of such securities a certified or
cashier's check or money order payable to the order of Univec, Inc. in the
amount of $ ________, all in accordance with the terms hereof. The undersigned
requests that certificates for such securities be registered in the name of
_______________________________ whose address is _____________________________
and that such certificates be delivered to _____________________ whose address
is __________________________________. .

Dated:
      ---------------------


                               Signature
                                        ---------------------------

                               (Signature must conform in all respects to the
                               name of the holder as specified on the face
                               of the Warrant Certificate.)




                                ----------------------------------------------
                                (Insert Social Security or Other
                                 Identifying Number of Holders)

                                       32

<PAGE>

                                                                    EXHIBIT 4.3



                                WARRANT AGREEMENT

                                      AMONG

                                  UNIVEC, INC.
                             a Delaware corporation,

                            MAIDSTONE FINANCIAL, INC.

                                       and

                   CONTINENTAL STOCK TRANSFER & TRUST COMPANY



<PAGE>


                                TABLE OF CONTENTS

Section                                                                Page
- -------                                                                ----
1.       Appointment of Warrant Agent.....................................2
2.       Form of Warrant..................................................2
3.       Countersignature and Registration................................4
4.       Transfers and Exchanges..........................................4
5.       Exercise of Warrants; Payment of Warrant Solicitation Fee........5
6.       Payment of Taxes.................................................9
7.       Mutilated or Missing Warrants....................................9
8.       Reservation of Common Stock.....................................10
9.       Adjustments of Warrant Price and Number of Securities...........11
10.      Fractional Interests............................................22
11.      Notices to Warrantholders.......................................23
12.      Disposition of Proceeds on Exercise of Warrants.................24
13.      Redemption of Warrants..........................................25
14.      Merger or Consolidation or Change of Name of Warrant Agent......26
15.      Duties of Warrant Agent.........................................26
16.      Change of Warrant Agent.........................................29
17.      Identity of Transfer Agent......................................30
18.      Notices.........................................................31
19.      Supplements and Amendments......................................32
20.      New York Contract...............................................32
21.      Benefits of this Agreement......................................33
22.      Successors......................................................33



                                        i

<PAGE>



         WARRANT AGREEMENT, dated as of __________ ___, 1997, among UNIVEC,
Inc., a Delaware corporation (the "Company"), Maidstone Financial, Inc. (the
"Underwriter") and Continental Stock Transfer & Trust Company, as warrant agent
(the "Warrant Agent").

         The Company proposes to issue and sell through an initial public
offering (the "IPO") underwritten by the Underwriter, an aggregate of up to
1,500,000 shares of common stock, par value $.001 per share (the "Common
Stock"), and 2,250,000 redeemable Common Stock purchase warrants ("Warrants")
and, pursuant to the Underwriter's overallotment option (the "Over-allotment
Option"), up to an additional 225,000 shares of Common Stock and 337,500
Warrants.

         In connection with the IPO the Company proposes to sell to the
Underwriter warrants (the "Underwriter's Warrants") to purchase up to 150,000
shares of Common Stock and up to 225,000 warrants (the "Underlying Warrants").

         The Company has issued and sold warrants to purchase an aggregate of up
to 2,500,000 shares of Common Stock (the "Bridge Warrants") in a private
placement of its securities completed in December 1996. The Bridge Warrants
automatically will be converted into Warrants having terms identical to the
Warrants being offered in the IPO on the date the Company's registration
statement under the Securities Act of 1933 registering the securities to be
offered in the IPO is declared effective by the Securities and Exchange
Commission.

         Each Warrant will entitle the holder to purchase one share of Common
Stock.

         The Company desires the Warrant Agent to act on behalf of the Company,
and the Warrant Agent is willing so to act, in connection with the issuance,
registration, transfer, exchange and exercise of the Warrants.

                                        1

<PAGE>



         THEREFORE, the parties hereto agree as follows:

         Section 1. Appointment of Warrant Agent. The Company hereby appoints
the Warrant Agent to act as Warrant Agent for the Company in accordance with the
instructions hereinafter set forth in this Agreement, and the Warrant Agent
hereby accepts such appointment.

         Upon the execution of this Agreement, certificates representing
4,750,000 Warrants to purchase up to an aggregate of 4,750,000 shares of Common
Stock (subject to modification and adjustment as provided in Section 9 hereof)
shall be executed by the Company and delivered to the Warrant Agent.

         Upon the exercise of the Over-allotment Option, certificates
representing up to 337,500 Warrants to purchase up to an aggregate of 337,500
shares of Common Stock (subject to modification and adjustment as provided in
Section 9 hereof) shall be executed by the Company and delivered to the Warrant
Agent.

         Upon exercise of the Underwriters' Warrant as provided therein,
certificates representing up to 225,000 Warrants to purchase up to an aggregate
of 225,000 shares of Common Stock (subject to modification and adjustment as
provided in Section 9 hereof) shall be executed by the Company and delivered to
the Warrant Agent.

         Section 2. Form of Warrant. The text of the Warrants and the form of
election to purchase Common Stock to be printed on the reverse thereof shall be
substantially as set forth in Exhibit A attached hereto (the provisions of which
are hereby incorporated herein). All of the certificates for the Warrants may
have such letters, numbers or other marks of identification or designation and
such legends, summaries or endorsements printed,

                                        2

<PAGE>



lithographed or engraved thereon as the Company may deem appropriate and as are
not inconsistent with the provisions of this Agreement, or as may be required to
comply with any law or with any rule or regulation made pursuant thereto or with
any rule or regulation of any stock exchange on which the Warrants may be
listed, or to conform to usage. Each Warrant shall initially entitle the
registered holder thereof to purchase one share of Common Stock at a purchase
price of four dollars and fifty cents ($4.50) (as adjusted as hereinafter
provided, the "Warrant Price"), at any time during the period (the "Exercise
Period") commencing on __________ __ 1999 [the second anniversary of the date
of the Company's prospectus (the "Prospectus") pursuant to which the Warrants
are being sold in the IPO] and expiring at 5:00 p.m. New York time, on
__________ __, 2002 [the fifth anniversary of the date of the Prospectus]. The
Warrant Price and the number of shares of Common Stock issuable upon exercise of
the Warrants are subject to adjustment upon the occurrence of certain events,
all as hereinafter provided. The Warrants shall be executed on behalf of the
Company by the manual or facsimile signature of the present or any future Chief
Executive Officer, President or Vice President of the Company, and attested to
by the manual or facsimile signature of the present or any future Secretary or
Assistant Secretary of the Company.

         Warrants shall be dated as of the date of issuance by the Warrant Agent
either upon initial issuance or upon transfer or exchange.

         In the event the aforesaid expiration date of the Warrants falls on a
day that is not a business day, then the Warrants shall expire at 5:00 p.m. New
York time on the next succeeding business day. For purposes hereof, the term
"business day" shall mean any day

                                        3

<PAGE>



other than a Saturday, Sunday or a day on which banking institutions in New York
City, New York, are authorized or obligated by law to be closed.

         Section 3. Countersignature and Registration. The Warrant Agent shall
maintain books for the transfer and registration of the Warrants. Upon the
initial issuance of the Warrants, the Warrant Agent shall issue and register the
Warrants in the names of the respective holders thereof. The Warrants shall be
countersigned manually or by facsimile by the Warrant Agent (or by any successor
to the Warrant Agent then acting as warrant agent under this Agreement) and
shall not be valid for any purpose unless so countersigned. The Warrants may,
however, be so countersigned by the Warrant Agent (or by its successor as
Warrant Agent) and be delivered by the Warrant Agent, notwithstanding that the
persons whose manual or facsimile signatures appear thereon as proper officers
of the Company shall have ceased to be such officers at the time of such
countersignature or delivery.

         Section 4. Transfers and Exchanges. The Warrant Agent shall transfer,
from time to time, any outstanding Warrants upon the books to be maintained by
the Warrant Agent for that purpose, upon surrender thereof for transfer properly
endorsed or accompanied by appropriate instructions for transfer. Upon any such
transfer, a new Warrant shall be issued to the transferee and the surrendered
Warrant shall be cancelled by the Warrant Agent. Warrants so cancelled shall be
delivered by the Warrant Agent to the Company from time to time upon request.
Warrants may be exchanged at the option of the holder thereof, when surrendered
at the office of the Warrant Agent, for another Warrant, or other Warrants of
different denominations of like tenor and representing in the aggregate the
right to purchase a like number of shares of Common Stock. No certificates for

                                        4

<PAGE>



Warrants shall be issued except for (i) Warrants initially issued hereunder in
accordance with Section 1 hereof, (ii) Warrants issued upon any transfer or
exchange of Warrants, (iii) Warrants issued in replacement of lost, stolen,
destroyed or mutilated certificates for Warrants pursuant to Section 7 hereof,
and (iv) at the option of the Board of Directors of the Company, Warrants in
such form as may be approved by its Board of Directors, to reflect any
adjustment or change in the Warrant Price or the number of shares of Common
Stock purchasable upon exercise of the Warrants made pursuant to Section 9
hereof.

         Section 5. Exercise of Warrants; Payment of Warrant Solicitation Fee.
Subject to the provisions of this Agreement, each registered holder of Warrants
shall have the right, at any time during the Exercise Period, to exercise such
Warrants and purchase the number of fully paid and non-assessable shares of
Common Stock specified in such Warrants upon presentation and surrender of such
Warrants to the Company at the corporate office of the Warrant Agent, with the
exercise form on the reverse thereof duly executed, and upon payment to the
Company of the Warrant Price, determined in accordance with the provisions of
Sections 2, 9 and 10 of this Agreement, for the number of shares of Common Stock
in respect of which such Warrants are then exercised. Payment of such Warrant
Price shall be made in cash or by certified or bank check payable to the
Company. Subject to Section 6 hereof, upon such surrender of Warrants and
payment of the Warrant Price, the Warrant Agent on behalf of the Company shall
cause to be issued and delivered with all reasonable dispatch to or upon the
written order of the registered holder of such Warrants and in such name or
names as such registered holder may designate, a certificate or certificates for
the number of full shares of Common Stock so purchased upon the

                                        5

<PAGE>



exercise of such Warrants. Such certificate or certificates shall be deemed to
have been issued and any person so designated to be named therein shall be
deemed to have become a holder of record of such shares of Common Stock
immediately prior to the close of business on the date of the surrender of such
Warrants and payment of the Warrant Price as aforesaid. The rights of purchase
represented by the Warrants shall be exercisable during the Exercise Period, at
the election of the registered holders thereof, either as an entirety or from
time to time for a portion of the shares specified therein and, in the event
that any Warrant is exercised in respect of less than all of the shares of
Common Stock specified therein at any time prior to the date of expiration of
the Warrants, a new Warrant or Warrants will be issued to the registered holder
for the remaining number of shares of Common Stock specified in the Warrant so
surrendered, and the Warrant Agent is hereby irrevocably authorized to
countersign and to deliver the required new Warrants pursuant to the provisions
of this Section and of Section 3 of this Agreement and the Company, whenever
requested by the Warrant Agent, will supply the Warrant Agent with Warrants duly
executed on behalf of the Company for such purpose. Upon the exercise of any one
or more Warrants, the Warrant Agent shall promptly notify the Company in writing
of such fact and of the number of securities delivered upon such exercise and,
subject to the provisions below, shall cause all payments of an amount, in cash
or by check made payable to the order of the Company, equal to the aggregate
Warrant Price for such Warrants, less any amounts payable to the Underwriter,
as provided below, to be deposited promptly in the Company's bank account. The
Company and Warrant Agent shall determine, in their

                                        6

<PAGE>



sole and absolute discretion, whether a Warrant certificate has been properly
completed for exercise by the registered holder thereof.

         Anything in the foregoing to the contrary notwithstanding, no Warrant
will be exercisable and the Company shall not be obligated to deliver any
securities pursuant to the exercise of any warrant unless at the time of
exercise the Company has filed with the Securities and Exchange Commission a
registration statement under the Securities Act of 1933, as amended (the "Act"),
covering the securities issuable upon exercise of such Warrant and such
registration statement shall have been declared and shall remain effective and
shall be current, and such shares have been registered or qualified or be exempt
under the securities laws of the state or other jurisdiction of residence of the
holder of such Warrant and the exercise of such Warrant in any such state or
other jurisdiction shall not otherwise be unlawful. During the Exercise Period,
the Company shall use its best efforts to have a current registration statement
on file with the Securities and Exchange Commission covering the issuance of
Common Stock underlying the Warrants so as to permit the Company to deliver to
each person exercising a Warrant a prospectus meeting the requirements of
Section 10(a) (3) of the Act and otherwise complying therewith, and will deliver
such prospectus to each such person. During the Exercise Period, the Company
shall also use its best efforts to effect appropriate qualifications of the
Common Stock underlying the Warrants under the laws and regulations of the
states and other jurisdictions in which the Common Stock and Warrants are sold
by the Underwriter in the IPO in order to comply with applicable laws in
connection with the exercise of the Warrants.

                                        7

<PAGE>



                  (a) If at the time of exercise of any Warrant (i) the market
price of the Common Stock is equal to or greater than the then exercise price of
the Warrant, (ii) the exercise of the Warrant is solicited by the Underwriter at
such time as it is a member of the National Association of Securities Dealers,
Inc. ("NASD") , (iii) the Warrant is not held in a discretionary account, (iv)
disclosure of the compensation arrangement is made in documents provided to the
holders of the Warrants, and (v) the solicitation of the exercise of the Warrant
is not in violation of Rule 10b-6 (as such rule or any successor rule may be in
effect as of such time of exercise) promulgated under the Securities Exchange
Act of 1934, as amended, then the Underwriter shall be entitled to receive from
the Company following exercise of each of the Warrants so exercised a fee of
eight percent (8%) of the aggregate exercise price of the Warrants so exercised
(the "Exercise Fee") The procedures for payment of the Exercise Fee are set
forth in Section 5(b) below.

                  (b) (i) Within five (5) days after the last day of each month
commencing with __________ ___, 1999, the Warrant Agent will notify the
Underwriter of each Warrant certificate which has been properly completed for
exercise by holders of Warrants during the last month. The Warrant Agent will
provide the Underwriter with such information, in connection with the exercise
of each Warrant, as the Underwriter shall reasonably request.

                           (ii) The Company hereby authorizes and instructs the
Warrant Agent to deliver to the Underwriter the Exercise Fee, if payable, in
respect of each exercise of Warrants, promptly after receipt by the Warrant
Agent from the Company of a check payable to the order of the Underwriter in the
amount of such Exercise Fee. In the event

                                        8

<PAGE>



that an Exercise Fee is paid to the Underwriter with respect to a Warrant which
the Company or the Warrant Agent determines is not properly completed for
exercise or in respect of which the Underwriter is not entitled to an Exercise
Fee, the Underwriter will return such Exercise Fee to the Warrant Agent which
shall forthwith return such fee to the Company.

         The Underwriter and the Company may at any time during business hours
examine the records of the Warrant Agent, including its ledger of original
Warrant certificates returned to the Warrant Agent upon exercise of Warrants.
Notwithstanding any provision to the contrary, the provisions of paragraph 5 (a)
and 5 (b) may not be modified, amended or deleted without the prior written
consent of the Underwriter.

         Section 6. Payment of Taxes. The Company will pay any documentary stamp
taxes attributable to the initial issuance of Common Stock issuable upon the
exercise of Warrants; provided, however, that the Company shall not be required
to pay any tax which may be payable in respect of any transfer involved in the
issuance or delivery of any certificates for shares of Common Stock in a name
other than that of the registered holder of Warrants in respect of which such
shares are issued, and in such case neither the Company nor the Warrant Agent
shall be required to issue or deliver any certificate for shares of Common Stock
or any Warrant until the person requesting the same has paid to the Company the
amount of such tax or has established to the Company's satisfaction that such
tax has been paid or that no such tax is required to be paid.

         Section 7. Mutilated or Missing Warrants. In case any of the Warrants
shall be mutilated, lost, stolen or destroyed, the Company may, in its
discretion, issue and the

                                        9

<PAGE>



Warrant Agent shall countersign and deliver in exchange and substitution for and
upon cancellation of the mutilated Warrant, or in lieu of and in substitution
for the Warrant lost, stolen or destroyed, a new Warrant of like tenor and
representing an equivalent right or interest, but only upon receipt of evidence
satisfactory to the Company and the Warrant Agent of such loss, theft or
destruction and, in case of a lost, stolen or destroyed Warrant, indemnity or
bond, if requested, also satisfactory to them. Applicants for such substitute
Warrants shall also comply with such other reasonable regulations and pay such
reasonable charges as the Company or the Warrant Agent may prescribe.

         Section 8. Reservation of Common Stock. There have been reserved, and
the Company shall at all times keep reserved, out of its authorized shares of
Common Stock, a number of shares of Common Stock sufficient to provide for the
exercise of the rights of purchase represented by the Warrants, and the transfer
agent for the shares of Common Stock and every subsequent transfer agent for any
shares of Common Stock issuable upon the exercise of any of the aforesaid rights
of purchase are irrevocably authorized and directed at all times to reserve such
number of authorized shares of Common Stock as shall be required for such
purpose. The Company agrees that all shares of Common Stock issued upon exercise
of the Warrants shall be, at the time of delivery of the certificates for such
shares against payment of the Warrant Price therefor, validly issued, fully paid
and nonassessable and listed on any national securities exchange or included in
any interdealer automated quotation system upon or in which the other shares of
outstanding Common Stock are then listed or included. The Company will keep a
copy of this Agreement on file with the transfer agent for the shares of Common
Stock (which may be the Warrant Agent)

                                       10

<PAGE>



and with every subsequent transfer agent for any shares of Common Stock issuable
upon the exercise of the rights of purchase represented by the Warrants. The
Warrant Agent is irrevocably authorized to requisition from time to time from
such transfer agent stock certificates required to honor outstanding Warrants.
The Company will supply such transfer agent with duly executed stock
certificates for that purpose. All Warrants surrendered in the exercise of the
rights thereby evidenced shall be cancelled by the Warrant Agent and shall
thereafter be delivered to the Company, and such cancelled Warrants shall
constitute sufficient evidence of the number of shares of Common Stock which
have been issued upon the exercise of such Warrants. Promptly after the date of
expiration of the Warrants, the Warrant Agent shall certify to the Company the
total aggregate amount of Warrants then outstanding, and thereafter no shares of
Common Stock shall be subject to reservation in respect of such Warrants which
shall have expired.

         Section 9. Adjustments of Warrant Price and Number of Securities.

                  (a) Computation of Adjusted Price. Except as hereinafter
provided, in case the Company shall, at any time after the date of closing of
the sale of securities pursuant to the IPO (the "Closing Date"), issue or sell
any shares of Common Stock (other than the issuances or sales referred to in
Section 9 (f) hereof), including shares held in the Company's treasury and
shares of Common Stock issued upon the exercise of any options, rights or
warrants to subscribe for shares of Common Stock (other than the issuances or
sales of Common Stock pursuant to rights to subscribe for such Common Stock
distributed pursuant to Section 9(h) hereof) and shares of Common Stock issued
upon the direct or indirect conversion or exchange of securities for shares of
Common Stock, for a

                                       11

<PAGE>



consideration per share less than the greater of (x) $3.50 per share and (y)
both the "Market Price" (as defined in Section 9(a)(vi) hereof) per share of
Common Stock on the trading day immediately preceding such issuance or sale and
the Warrant Price in effect immediately prior to such issuance or sale, or
without consideration, then forthwith upon such issuance or sale, the Warrant
Price shall (until another such issuance or sale) be reduced to the price
(calculated to the nearest full cent) determined by multiplying the Warrant
Price in effect immediately prior to such issuance or sale by a fraction, the
numerator of which shall be the sum of (1) the number of shares of Common Stock
outstanding immediately prior to such issuance or sale multiplied by the Warrant
Price immediately prior to such issuance or sale plus (2) the consideration
received by the Company upon such issuance or sale, and the denominator of which
shall be the product of (x) the total number of shares of Common Stock
outstanding immediately after such issuance or sale, multiplied by (y) the
Warrant Price immediately prior to such issuance or sale; provided, however,
that in no event shall the Warrant Price be adjusted pursuant to this
computation to an amount in excess of the Warrant Price in effect immediately
prior to such computation, except in the case of a combination of outstanding
shares of Common Stock, as provided by Section 9(c) hereof.

         For the purposes of any computation to be made in accordance with this
Section 9(a), the following provisions shall be applicable:

                           (i) In case of the issuance or sale of shares of
Common Stock for a consideration part or all of which shall be cash, the amount
of the cash consideration therefor shall be deemed to be the amount of cash
received by the Company for such shares

                                       12

<PAGE>



(or, if shares of Common Stock are offered by the Company for subscription, the
subscription price, or, if such securities shall be sold to underwriters or
dealers for public offering without a subscription offering, the public offering
price) before deducting therefrom any compensation paid or discount allowed in
the sale, underwriting or purchase thereof by underwriters or dealers or others
performing similar services, or any expenses incurred in connection therewith.

                           (ii) In case of the issuance or sale (otherwise than
as a dividend or other distribution on any stock of the Company) of shares of
Common Stock for a consideration part or all of which shall be other than cash,
the amount of the consideration therefor other than cash shall be deemed to be
the value of such consideration as determined in good faith by the Board of
Directors of the Company.

                           (iii) Shares of Common Stock issuable by way of
dividend or other distribution on any stock of the Company shall be deemed to
have been issued immediately after the opening of business on the day following
the record date for the determination of shareholders entitled to receive such
dividend or other distribution and shall be deemed to have been issued without
consideration.

                           (iv) The reclassification of securities of the
Company other than shares of Common Stock into securities including shares of
Common Stock shall be deemed to involve the issuance of such shares of Common
Stock for a consideration other than cash immediately prior to the close of
business on the date fixed for the determination of security holders entitled to
receive such shares, and the value of the consideration allocable

                                       13

<PAGE>



to such shares of Common Stock shall be determined as provided in subsection
(ii) of this Section 9(a).

                           (v) The number of shares of Common Stock at any one
time outstanding shall include the aggregate number of shares issued or issuable
upon the exercise of options, warrants or rights and upon the conversion or
exchange of convertible or exchangeable securities.

                           (vi) As used herein, the phrase "Market Price" at any
date shall be deemed to be the average of the last reported sale price, or, in
case no such reported sale takes place on such day, the average of the last
reported sale prices for the last three trading days, in either case as
officially reported by the principal securities exchange on which the Common
Stock is listed or admitted to trading or as reported in the Nasdaq Stock
Market, or, if the Common Stock is not listed or admitted to trading on any
national securities exchange or quoted on the Nasdaq Stock Market, the closing
bid quotation as furnished by the National Association of Securities Dealers,
Inc. through Nasdaq or a similar organization if Nasdaq is no longer reporting
such information, or if the Common Stock is not quoted on Nasdaq, as determined
in good faith by resolution of the Board of Directors of the Company, based on
the best information available to it for the day immediately preceding such
issuance or sale, the day of such issuance or sale and the day immediately after
such issuance or sale. If the Common Stock is listed or admitted to trading on a
national securities exchange and also quoted on the Nasdaq Stock Market, the
Market Price shall be determined as hereinabove provided by reference to the
prices reported in the Nasdaq Stock Market; provided that if the Common Stock is
listed or

                                       14

<PAGE>



admitted to trading on the New York Stock Exchange, the Market Price shall be
determined as hereinabove provided by reference to the prices reported by such
exchange.

                  (b) Options, Rights, Warrants and Convertible and Exchangeable
Securities. Except in the case of the Company issuing rights to subscribe for
shares of Common Stock distributed pursuant to Section 9(h) hereof, if the
Company shall at any time after the Closing Date issue options, rights or
warrants to subscribe for shares of Common Stock, or issue any securities
convertible into or exchangeable for shares of Common Stock, in each case other
than the issuances or sales referred to in section 9 (f) hereof, (i) for a
consideration per share less than the greater of (x) $3.50 per share and (y) the
lesser of (a) the Warrant Price in effect immediately prior to the issuance of
such options, rights or warrants, or such convertible or exchangeable
securities, and (b) the Market Price on the trading day immediately preceding
such issuance, or (ii) without consideration, the Warrant Price in effect
immediately prior to the issuance of such options, rights or warrants, or such
convertible or exchangeable securities, as the case may be, shall be reduced to
a price determined by making a computation in accordance with the provisions of
Section 9(a) hereof; provided that:

                           (i) The aggregate maximum number of shares of Common
Stock, as the case may be, issuable under all the outstanding options, rights or
warrants shall be deemed to be issued and outstanding at the time all the
outstanding options, rights or warrants were issued, and for a consideration
equal to the minimum purchase price per share provided for in the options,
rights or warrants at the time of issuance, plus the consideration (determined
in the same manner as consideration received on the issue or sale

                                       15

<PAGE>



of shares in accordance with the terms of Section 9(a)), if any, received by the
Company for the options, rights or warrants, and if no minimum purchase price is
provided in the options, rights or warrants, then the minimum purchase price
shall be equal to zero; provided, however, that upon the expiration or other
termination of the options, rights or warrants, if any thereof shall not have
been exercised, the number of shares of Common Stock deemed to be issued and
outstanding pursuant to this subsection (b) (and for the purposes of subsection
(v) of Section 9(a) hereof) shall be reduced by such number of shares as to
which options, warrants or rights shall have expired or terminated unexercised,
and such number of shares shall no longer be deemed to be issued and
outstanding, and the Warrant Price then in effect shall forthwith be readjusted
and thereafter be the price which it would have been had adjustment been made on
the basis of the issuance only of shares actually issued or issuable upon the
exercise of those options, rights or warrants as to which the exercise rights
shall not have expired or terminated unexercised.

                           (ii) The aggregate maximum number of shares of Common
Stock issuable upon conversion or exchange of any convertible or exchangeable
securities shall be deemed to be issued and outstanding at the time of issuance
of such securities, and for a consideration equal to the consideration
(determined in the same manner as consideration received on the issue or sale of
shares of Common Stock in accordance with the terms of Section 9 (a)) received
by the Company for such securities, plus the minimum consideration, if any,
receivable by the Company upon the conversion or exchange thereof; provided,
however, that upon the expiration or other termination of the right to convert
or exchange such convertible or exchangeable securities (whether by reason of
redemption or

                                       16

<PAGE>



otherwise), the number of shares deemed to be issued and outstanding pursuant to
this subsection (ii) (and for the purpose of subsection (v) of Section 9(a)
hereof) shall be reduced by such number of shares as to which the conversion or
exchange rights shall have expired or terminated unexercised, and such number of
shares shall no longer be deemed to be issued and outstanding, and the Warrant
Price then in effect shall forthwith be readjusted and thereafter be the price
which it would have been had adjustment been made on the basis of the issuance
only of the shares actually issued or issuable upon the conversion or exchange
of those convertible or exchangeable securities as to which the conversion or
exchange rights shall not have expired or terminated unexercised. No adjustment
will be made pursuant to this subsection (ii) upon the issuance by the Company
of any convertible or exchangeable securities pursuant to the exercise of any
option, right or warrant exercisable therefor, to the extent that adjustments in
respect of such options, rights or warrants were previously made pursuant to the
provisions of subsection (i) of this subsection 9 (b) .

                           (iii) If any change shall occur in the price per
share provided for in any of the options, rights or warrants referred to in
subsection (i) of this Section 9 (b) , or in the price per share at which the
securities referred to in subsection (ii) of this Section 9(b) are convertible
or exchangeable, or if any such options, rights or warrants are exercised at a
price greater than the minimum purchase price provided for in such options,
rights or warrants, or any such securities are converted or exercised for more
than the minimum consideration receivable by the Company upon such conversion or
exchange, the options, rights or warrants or conversion or exchange rights, as
the case may be, shall be

                                       17

<PAGE>



deemed to have expired or terminated on the date when such price change became
effective in respect of shares not theretofore issued pursuant to the exercise
or conversion or exchange thereof, and the Company shall be deemed to have
issued upon such date new options, rights or warrants or convertible or
exchangeable securities at the new price in respect of the number of shares
issuable upon the exercise of such options, rights or warrants or the conversion
or exchange of such convertible or exchangeable securities; provided, however,
that no adjustment shall be made pursuant to this subsection (iii) with respect
to any change in the price per share provided for in any of the options, rights
or warrants referred to in subsection (b) (i) of this Section 9 (b), or in the
price per share at which the securities referred to in subsection (b) (ii) of
this Section 9(b) are convertible or exchangeable, which change results from the
application of the anti-dilution provisions thereof in connection with an event
for which, subject to subsection (iv) of this Section 9(f), an adjustment to the
Warrant Price and the number of securities issuable upon exercise of the
Warrants will be required to be made pursuant to this Section 9.

                  (c) Subdivision and Combination. In case the Company shall at
any time after the Closing Date subdivide or combine the outstanding shares of
Common Stock, the Warrant Price shall forthwith be proportionately decreased in
the case of subdivision or increased in the case of combination.

                  (d) Adjustment in Number of Shares. Upon each adjustment of
the Warrant Price pursuant to the provisions of this Section 9, the number of
shares of Common Stock issuable upon the exercise of the Warrants shall be
adjusted to the nearest full whole number by multiplying a number equal to the
Warrant Price in effect

                                       18

<PAGE>



immediately prior to such adjustment by the number of shares of Common Stock
issuable upon exercise of the Warrants immediately prior to such adjustment and
dividing the product so obtained by the adjusted Warrant Price.

                  (e) Reclassification, Consolidation, Merger, etc. In case of
any reclassification or change of the outstanding shares of Common Stock (other
than a change in par value to no par value, or from no par value to par value,
or as a result of a subdivision or combination), or in the case of any
consolidation of the Company with, or merger of the Company into, another
corporation (other than a consolidation or merger which does not result in any
reclassification or change of the outstanding shares of Common Stock, except a
change as a result of a subdivision or combination of such shares or a change in
par value, as aforesaid), or in the case of a sale or conveyance to another
corporation of the property of the Company as an entirety, the Holder shall
thereafter have the right to purchase the kind and number of shares of stock and
other securities and property receivable upon such reclassification, change,
consolidation, merger, sale or conveyance as if the Holder were the owner of the
shares of Common Stock underlying the Warrants immediately prior to any such
events at a price equal to the product of (x) the number of shares issuable upon
exercise of the Warrants and (y) the Warrant Price in effect immediately prior
to the record date for such reclassification, change, consolidation, merger,
sale or conveyance as if such Holder had exercised the Warrant.

                  (f) No Adjustment of Warrant Price in Certain Cases.
Notwithstanding anything herein to the contrary, no adjustment of the Warrant
Price shall be made:

                                       19

<PAGE>



                           (i) Upon the issuance or sale of the Underwriters'
Warrant, the shares of Common Stock or Warrants issuable upon the exercise of
the Underwriters' Warrant or the shares of Common Stock issuable upon exercise
of the Warrants underlying the Underwriters' Warrant; or

                           (ii) Upon the issuance or sale of (A) the shares of
Common Stock or Warrants issued by the Company in the IPO (including pursuant to
the Over-allotment Option) or other shares of Common Stock or warrants issued by
the Company upon consummation of the IPO or, (B) the shares of Common Stock (or
other securities) issuable upon exercise of Warrants; or

                           (iii) Upon (i) the issuance of options pursuant to
the Company's stock option plan in effect on the date hereof or as hereafter
amended in accordance with the terms thereof or any other employee or executive
stock option plan approved by stockholders of the Company or the sale by the
Company of any shares of Common Stock pursuant to the exercise of any such
options, or (ii) the sale by the Company of any shares of Common Stock pursuant
to the exercise of any options or warrants issued and outstanding on the date of
closing of the sale of Common Stock and Warrants pursuant to the IPO; or

                           (iv) If the amount of said adjustment shall be less
than five cents ($.05) per share of Common Stock.

                  (g) Dividends and Other Distributions with Respect to
Outstanding Securities. In the event that the Company shall at any time after
the Closing Date and prior

                                       20

<PAGE>



to the exercise or expiration of all Warrants declare a dividend (other than a
dividend consisting solely of shares of Common Stock or a cash dividend or
distribution payable out of current or retained earnings) or otherwise
distribute to the holders of Common Stock any monies, assets, property, rights,
evidences of indebtedness, securities (other than such a cash dividend or
distribution or dividend consisting solely of shares of Common Stock), whether
issued by the Company or by another person or entity, or any other thing of
value, the Holders of the unexercised Warrants shall thereafter be entitled, in
addition to the shares of Common Stock or other securities receivable upon the
exercise thereof, to receive, upon the exercise of such Warrants, the same
monies, property, assets, rights, evidences of indebtedness, securities or any
other thing of value that they would have been entitled to receive at the time
of such dividend or distribution as if the Holders were the owners of the shares
of Common Stock underlying such Warrants. At the time of any such dividend or
distribution, the Company shall make appropriate reserves to ensure the timely
performance of the provisions of this Section 9(g).

                  (h) Subscription Rights for Shares of Common Stock or Other
Securities. In case the Company or an affiliate of the Company shall at anytime
after the date hereof and prior to the exercise of all the Warrants issue any
rights to subscribe for shares of Common Stock or any other securities of the
Company or of such affiliate to all the holders of Common Stock, the Holders of
the unexercised Warrants shall be entitled, in addition to the shares of Common
Stock or other securities receivable upon the exercise of the Warrants, to
receive such rights at the time such rights are distributed to the other

                                       21

<PAGE>



stockholders of the Company but only to the extent of the number of shares of
Common Stock, if any, for which the Warrants remain exercisable.

                  (i) Notice in Event of Dissolution. In case of the
dissolution, liquidation or winding-up of the Company, all rights under the
Warrants shall terminate on a date fixed by the Company, such date to be no
earlier than ten (10) days prior to the effectiveness of such dissolution,
liquidation or winding-up and not later than five (5) days prior to such
effectiveness. Notice of such termination of purchase rights shall be given to
each registered holder of the Warrants, as the same shall appear on the books of
the Company maintained by the Warrant Agent, by registered mail at least thirty
(30) days prior to such termination date.

                  (j) Computations. The Company may retain a firm of independent
public accountants (who may be any such firm regularly employed by the Company)
to make any computation required under this Section 9, and any certificate
setting forth such computation signed by such firm shall be conclusive evidence
of the correctness of any computation made under this Section 9.

         Section 10. Fractional Interests. The Warrants may only be exercised to
purchase full shares of Common Stock and the Company shall not be required to
issue fractions of shares of Common Stock on the exercise of Warrants. However,
if a Warrantholder exercises all Warrants then owned of record by him and such
exercise would result in the issuance of a fractional share, the Company will
pay to such Warrantholder, in lieu of the issuance of any fractional share
otherwise issuable, an amount of cash based on the Market Price on the last
trading day prior to the exercise date.

                                       22

<PAGE>



         Section 11. Notices to Warrantholders.

                  (a) Upon any adjustment of the Warrant Price and the number of
shares of Common Stock issuable upon exercise of a Warrant, then and in each
such case, the Company shall give written notice thereof to the Warrant Agent,
which notice shall state the Warrant Price resulting from such adjustment and
the increase or decrease, if any, in the number of shares purchasable at such
price upon the exercise of a Warrant, setting forth in reasonable detail the
method of calculation and the facts upon which such calculation is based. The
Company shall also mail such notice to the holders of the Warrants at their
respective addresses appearing in the Warrant register. Failure to give or mail
such notice, or any defect therein, shall not affect the validity of the
adjustments.

                  (b) In case at any time after the Closing Date:

                           (i) the Company shall pay dividends payable in stock
upon its Common Stock or make any distribution (other than regular cash
dividends) to the holders of Common Stock; or

                           (ii) the Company shall offer for subscription pro
rata to all of the holders of Common Stock any additional shares of stock of any
class or other rights; or

                           (iii) there shall be any capital reorganization or
reclassification of the capital stock of the Company, or consolidation or merger
of the Company with, or sale of substantially all of its assets to another
corporation; or

                           (iv) there shall be a voluntary or involuntary
dissolution, liquidation or winding-up of the Company; then in any one or more
of such cases, the Company shall give written notice to the Warrant Agent and
the holders of the Warrants

                                       23

<PAGE>



in the manner set forth in Section 11(a) of the date on which (A) a record shall
be taken for such dividend, distribution or subscription rights, or (B) such
reorganization, reclassification, consolidation, merger, sale, dissolution,
liquidation or winding-up shall take place, as the case may be. Such notice
shall also specify the date as of which the holders of Common Stock of record
shall participate in such dividend, distribution or subscription rights, or
shall be entitled to exchange their Common Stock for securities or other
property deliverable upon such reorganization, reclassification, consolidation,
merger, sale, dissolution, liquidation or winding-up, as the case may be. Such
notice shall be given at least ten (10) days prior to the action in question and
not less than ten (10) days prior to the record date in respect thereof. Failure
to give such notice, or any defect therein, shall not affect the legality or
validity of any of the matters set forth in this Section 11(b).

                  (c) The Company shall cause copies of all financial statements
and reports, proxy statements and other documents that are sent to its
stockholders to be sent by an identical class of mail, postage prepaid, on the
date of mailing to such stockholders, to each registered holder of Warrants at
his address appearing in the Warrant register as of the record date for the
determination of the stockholders entitled to such documents.

         Section 12. Disposition of Proceeds on Exercise of Warrants.

                  (a) The Warrant Agent shall promptly forward to the Company
all monies received by the Warrant Agent for the purchase of shares of Common
Stock through the exercise of these Warrants.

                  (b) The Warrant Agent shall keep copies of this Agreement
available for inspection by holders of Warrants during normal business hours.

                                       24

<PAGE>



         Section 13. Redemption of Warrants. The Warrants are redeemable by the
Company commencing on the second anniversary the date of the Prospectus (with
the consent of the Underwriter), in whole or in part, on not less than thirty
(30) days' prior written notice at a redemption price of $.05 per Warrant,
provided the average closing bid quotation of the Common Stock as reported on
the Nasdaq Stock Market, if traded thereon, or if not traded thereon, the
average closing sale price if listed on a national securities exchange (or other
reporting system that provides last sale prices), has been at least $8.00
per share, for a period of 20 consecutive trading days ending on the third day
prior to the date on which the Company gives notice of redemption. Any
redemption in part shall be made pro rata to all Warrant holders. The redemption
notice shall be mailed to the holders of the Warrants at their respective
addresses appearing in the Warrant register. Any such notice mailed in the
manner provided herein shall be conclusively presumed to have been duly given in
accordance with this Agreement whether or not the registered holder receives
such notice. No failure to mail such notice nor any defect therein or in the
mailing thereof shall affect the validity of the proceedings for such redemption
except as to a registered holder of a Warrant (i) to whom notice was not mailed
or (ii) whose notice was defective. An affidavit of the Warrant Agent or the
Secretary or Assistant Secretary of the Company that notice of redemption has
been mailed shall, in the absence of fraud, be prima facie evidence of the facts
stated therein. Holders of the Warrants will have exercise rights until the
close of business on the day immediately preceding the date fixed for
redemption.

                                       25

<PAGE>



         Section 14. Merger or Consolidation or Change of Name of Warrant Agent.
Any corporation or company which may succeed to the corporate trust business of
the Warrant Agent by any merger or consolidation or otherwise shall be the
successor to the Warrant Agent hereunder without the execution or filing of any
paper or any further act on the part of any of the parties hereto; provided,
that such corporation would be eligible for appointment as a successor Warrant
Agent under the provisions of Section 16 of this Agreement. In case at the time
such successor to the Warrant Agent shall succeed to the agency created by this
Agreement any of the Warrants shall have been countersigned but not delivered,
any such successor to the Warrant Agent may adopt the countersignature of the
original Warrant Agent and deliver such Warrants so countersigned.

         In case at any time the name of the Warrant Agent shall be changed and
at such time any of the Warrants shall have been countersigned but not
delivered, the Warrant Agent may adopt the countersignature under its prior name
and deliver Warrants so countersigned. In all such cases such Warrants shall
have the full force provided in the Warrants and in this Agreement.

         Section 15. Duties of Warrant Agent. The Warrant Agent undertakes the
duties and obligations imposed by this Agreement upon the following terms and
conditions, by all of which the Company and the holders of Warrants, by their
acceptance thereof, shall be bound:

                  (a) The statements of fact and recitals contained herein and
in the Warrants shall be taken as statements of the Company, and the Warrant
Agent assumes no responsibility for the correctness of any of the same except as
such describe the Warrant

                                       26

<PAGE>



Agent or action taken or to be taken by it. The Warrant Agent assumes no
responsibility with respect to the distribution of the Warrants except as herein
expressly provided.

                  (b) The Warrant Agent shall not be responsible for any failure
of the Company to comply with any of the covenants in this Agreement or in the
Warrants to be complied with by the Company.

                  (c) The Warrant Agent may consult at any time with counsel
satisfactory to it (who may be counsel for the Company) and the Warrant Agent
shall incur no liability or responsibility to the Company or to any holder of
any Warrant in respect of any action taken, suffered or omitted by it hereunder
in good faith and in accordance with the opinion or the advice of such counsel.

                  (d) The Warrant Agent shall incur no liability or
responsibility to the Company or to any holder of any Warrant for any action
taken in reliance on any notice, resolution, waiver, consent, order, certificate
or other instrument believed by it to be genuine and to have been signed, sent
or presented by the proper party or parties.

                  (e) The Company agrees to pay to the Warrant Agent reasonable
compensation for all services rendered by the Warrant Agent in the execution of
this Agreement, to reimburse the Warrant Agent for all expenses, taxes and
governmental charges and other charges incurred by the Warrant Agent in the
execution of this Agreement and to indemnify the Warrant Agent and save it
harmless against any and all liabilities, including judgments, costs and
reasonable counsel fees, for anything done or omitted by the Warrant Agent in
the execution of this Agreement except as a result of the Warrant Agent's
negligence, willful misconduct or bad faith.

                                       27

<PAGE>



                  (f) The Warrant Agent shall be under no obligation to
institute any action, suit or legal proceeding or to take any other action
likely to involve expenses unless the Company or one or more registered holders
of Warrants shall furnish the Warrant Agent with reasonable security and
indemnity for any costs and expenses which may be incurred, but this provision
shall not affect the power of the Warrant Agent to take such action as the
Warrant Agent may consider proper, whether with or without any such security or
indemnity. All rights of action under this Agreement or under any of the
Warrants may be enforced by the Warrant Agent without the possession of any of
the Warrants or the production thereof at any trial or other proceeding. Any
such action, suit or proceeding instituted by the Warrant Agent shall be brought
in its name as Warrant Agent, and any recovery of judgment shall be for the
ratable benefit of the registered holders of the Warrants, as their respective
rights and interests may appear.

                  (g) The Warrant Agent and any stockholder, director, officer,
partner or employee of the Warrant Agent may buy, sell or deal in any of the
Warrants or other securities of the Company or become pecuniarily interested in
any transaction in which the Company may be interested, or contract with or lend
money to or otherwise act as fully and freely as though it were not the Warrant
Agent under this Agreement. Nothing herein shall preclude the Warrant Agent from
acting in any other capacity for the Company or for any other legal entity.

                  (h) The Warrant Agent shall act hereunder solely as agent and
its duties shall be determined solely by the provisions hereof.

                                       28

<PAGE>



                  (i) The Warrant Agent may execute and exercise any of the
rights or powers hereby vested in it or perform any duty hereunder either itself
or by or through its attorneys, agents or employees, and the Warrant Agent shall
not be answerable or accountable for any such attorneys, agents or employees or
for any loss to the Company resulting from such neglect or misconduct, provided
reasonable care had been exercised in the selection and continued employment
thereof.

                  (j) Any request, direction, election, order or demand of the
Company shall be sufficiently evidenced by an instrument signed in the name of
the Company by its President or a Vice President or its Secretary or an
Assistant Secretary or its Treasurer or an Assistant Treasurer (unless other
evidence in respect thereof be herein specifically prescribed); and any
resolution of the Board of Directors may be evidenced to the Warrant Agent by a
copy thereof certified by the Secretary or an Assistant Secretary of the
Company.

         Section 16. Change of Warrant Agent. The Warrant Agent may resign and
be discharged from its duties under this Agreement by giving to the Company
notice in writing, and to the holders of the Warrants notice by mailing such
notice to the holders at their respective addresses appearing on the Warrant
register, of such resignation, specifying a date when such resignation shall
take effect. The Warrant Agent may be removed by like notice to the Warrant
Agent from the Company and the like mailing of notice to the holders of the
Warrants. If the Warrant Agent shall resign or be removed or shall otherwise
become incapable of action, the Company shall appoint a successor to the Warrant
Agent. If the Company shall fail to make such appointment within a period of
thirty (30) days

                                       29

<PAGE>



after such removal or after it has been notified in writing of such resignation
or incapacity by the resigning or incapacitated Warrant Agent or after the
Company has received such notice from a registered holder of a Warrant (who
shall, with such notice, submit his Warrant for inspection by the Company), then
the registered holder of any Warrant may apply to any court of competent
jurisdiction for the appointment of a successor to the Warrant Agent. Any
successor Warrant Agent, whether appointed by the Company or by such a court,
shall be a bank or trust company, in good standing, incorporated under New York
or federal law. After appointment, the successor Warrant Agent shall be vested
with the same powers, rights, duties and responsibility as if it had been
originally named as Warrant Agent without further act or deed and the former
Warrant Agent shall deliver and transfer to the successor Warrant Agent all
canceled Warrants, records and property at the time held by it hereunder, and
execute and deliver any further assurance or conveyance necessary for this
purpose. Failure to file or mail any notice provided for in this Section,
however, or any defect therein, shall not affect the validity of the resignation
or removal of the Warrant Agent or the appointment of the successor Warrant
Agent, as the case may be.

         Section 17. Identity of Transfer Agent. Forthwith upon the appointment
of any transfer agent (other than Continental Stock Transfer & Trust Company)
for the shares of Common Stock or of any subsequent transfer agent for the
shares of Common Stock, the Company will file with the Warrant Agent a statement
setting forth the name and address of such transfer agent.

                                       30

<PAGE>



         Section 18. Notices. Any notice pursuant to this Agreement to be given
by the Warrant Agent or the registered holder of any Warrant to the Company,
shall be sufficiently given if sent by first-class mail, postage prepaid,
addressed (until another is filed in writing by the Company with the Warrant
Agent) as follows:

                           UNIVEC, Inc.
                           999 Franklin Avenue
                           Garden CIty, New York  11530

                           Attention: Joel Schoenfeld, Chairman of the Board
                                        and Chief Executive Officer

                     and a copy thereof to:

                           Snow Becker Krauss, P.C.
                           605 Third Avenue
                           New York, New York 10158-0125

                           Attention: Jack Becker, Esq.

         Any notice pursuant to this Agreement to be given by the Company or the
registered holder of any Warrant to the Warrant Agent shall be sufficiently
given if sent by first-class mail, postage prepaid, addressed (until another
address is filed in writing by the Warrant Agent with the Company) as follows:

                           Continental Stock Transfer & Trust Company
                           2 Broadway, 19th Floor
                           New York, New York  10004

                           Attention:  Executive Vice President

         Any notice pursuant to this Agreement to be given by the Warrant Agent
or the Company to the Underwriter shall be sufficiently given if sent by
first-class mail, postage prepaid, addressed (until another address is filed in
writing with the Warrant Agent) as follows:

                                       31

<PAGE>



                           Maidstone Financial, Inc.
                           101 East 52nd Street
                           New York, New York 10022

                           Attention: Marshall Bernstein

                  and a copy thereof to:

                           Gersten, Savage, Kaplowitz, Fredericks & Curtin, LLP
                           101 East 52nd Street
                           New York, New York 10022

                           Attention: Jay M. Kaplowitz, Esq.

         Section 19. Supplements and Amendments. The Company and the Warrant
Agent may from time to time supplement or amend this Agreement in order to cure
any ambiguity or to correct or supplement any provision contained herein which
may be defective or inconsistent with any other provision herein, or to make any
other provisions in regard to matters or questions arising hereunder which the
Company and the Warrant Agent may deem necessary or desirable and which shall
not be inconsistent with the provisions of the Warrants and which shall not
materially adversely affect the interest of the holders of Warrants; and in
addition the Company and the Warrant Agent may modify, supplement or alter this
Agreement with the consent in writing of the registered holders of the Warrants
representing not less than a majority of the Warrants then outstanding.

         Section 20. New York Contract. This Agreement and each Warrant issued
hereunder shall be deemed to be a contract made under the laws of the State of
New York and shall be construed in accordance with the laws of New York without
regard to the conflicts of law principles thereof.

                                       32

<PAGE>



         Section 21. Benefits of this Agreement. Nothing in this Agreement shall
be construed to give to any person or corporation other than the Company, the
Warrant Agent and the registered holders of the Warrants any legal or equitable
right, remedy or claim under this Agreement; but this Agreement shall be for the
sole and exclusive benefit of the Company, the Warrant Agent and the registered
holders of the Warrants.

         Section 22. Successors. All the covenants and provisions of this
Agreement by or for the benefit of the Company or the Warrant Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.


                                       33

<PAGE>



         IN WITNESS WHEREOF, the parties have entered into this Agreement on the
date first above written.

                                  UNIVEC, INC.


                                  By: ________________________________
                                       Name: Joel Schoenfeld
                                       Title:   Chairman of the Board and
                                                 Chief Executive Officer


                                  CONTINENTAL STOCK TRANSFER &
                                  TRUST COMPANY


                                  By: ________________________________
                                      Name:
                                      Title:



                                  MAIDSTONE FINANCIAL, INC.


                                  By: ________________________________
                                       Name:  Marshall Bernstein
                                       Title:    Chairman of the Board


                                       34

<PAGE>




No. W_______________________                       VOID AFTER_____________, 2002

         WARRANTS


                        REDEEMABLE WARRANT CERTIFICATE TO
                       PURCHASE ONE SHARE OF COMMON STOCK



                                  UNIVEC, INC.



                                                                  CUSIP [      ]

         THIS CERTIFIES THAT, FOR VALUE RECEIVED

         or registered assigns (the "Registered Holder") is the owner of the
number of Redeemable Warrants (the "Warrants") specified above. Each Warrant
initially entitles the Registered Holder to purchase, subject to the terms and
conditions set forth in this Certificate and the Warrant Agreement (as
hereinafter defined), one fully paid and nonassessable share of Common Stock,
par value $.001 per share (the "Common Stock"), of UNIVEC, Inc., a Delaware
corporation (the "Company"), at any time from _________ __, 1999 (the "Initial
Warrant Exercise Date"), and prior to the Expiration Date (as hereinafter
defined) upon the presentation and surrender of this Warrant Certificate with
the Exercise Form on the reverse hereof duly executed, at the corporate office
of Continental Stock Transfer and Trust Company, 2 Broadway, New York, New York
10004, as Warrant Agent, or its successor (the "Warrant Agent"), accompanied by
payment of $4.50, subject to adjustment (the "Exercise Price"), in lawful money
of the United States of America in cash or by certified or bank check made
payable to the Company.

         This Warrant Certificate and each Warrant represented hereby are issued
pursuant to and are subject in all respects to the terms and conditions set
forth in the Warrant Agreement, dated as of ___________ ___, 1997 (the "Warrant
Agreement"), among the Company, Maidstone Financial, Inc. (the "Underwriter")
and the Warrant Agent.

         In the event of certain contingencies provided for in the Warrant
Agreement, the Exercise Price and the number of shares of Common Stock subject
to purchase upon the exercise of each Warrant represented hereby are subject to
modification or adjustment.

         Each Warrant represented hereby is exercisable at the option of the
Registered Holder, but no fractional shares will be issued. In the case of the
exercise of less than all the Warrants represented hereby, the Company shall
cancel this Warrant Certificate upon the surrender hereof

                                       A-1

<PAGE>



and shall execute and deliver a new Warrant Certificate or Warrant Certificates
of like tenor, which the Warrant Agent shall countersign, for the balance of
such Warrants.

         The term "Expiration Date" shall mean 5:00 p.m. (New York time)
on_________ ___, 2002 [the date which is the fifth anniversary of the Initial
Warrant Exercise Date]; provided, that if such date is not a business day, it
shall mean 5:00 p.m., New York City time, on the next following business day.
For purposes hereof, the term "business day" shall mean any day other than a
Saturday, Sunday or a day on which banking institutions in New York City, New
York, are authorized or obligated by law to be closed.

         The Company shall not be obligated to deliver any securities pursuant
to the exercise of the Warrants represented hereby unless at the time of
exercise the Company has filed with the Securities and Exchange Commission a
registration statement under the Securities Act of 1933, as amended (the "Act"),
covering the securities issuable upon exercise of the Warrants represented
hereby and such registration statement has been declared and shall remain
effective and shall be current, and such securities have been registered or
qualified or be exempt under the securities laws of the state or other
jurisdiction of residence of the Registered Holder and the exercise of the
Warrants represented hereby in any such state or other jurisdiction shall not
otherwise be unlawful.

         This Warrant Certificate is exchangeable, upon the surrender hereof by
the Registered Holder at the corporate office of the Warrant Agent, for a new
Warrant Certificate or Warrant Certificates of like tenor representing an equal
aggregate number of Warrants, each of such new Warrant Certificates to represent
such number of Warrants as shall be designated by such Registered Holder at the
time of such surrender. Upon the presentment and payment of any tax or other
charge imposed in connection therewith or incident thereto for registration of
transfer of this Warrant Certificate at such office, a new Warrant Certificate
or Warrant Certificates representing an equal aggregate number of Warrants will
be issued to the transferee in exchange therefor, subject to the limitations
provided in the Warrant Agreement.

         Prior to the exercise of any Warrant represented hereby, the Registered
Holder, as such, shall not be entitled to any rights of a stockholder of the
Company, including, without limitation, the right to vote or to receive
dividends or other distributions, and shall not be entitled to receive any
notice of any proceedings of the Company, except as provided in the Warrant
Agreement.

         Subject to the provisions of the Warrant Agreement, this Warrant may be
redeemed at the option of the Company, at a redemption price of $.05 per
Warrant, at any time commencing __________ ___, 1999 [the second anniversary of
the date of the Prospectus] (with the prior written consent of the Underwriter),
provided that the average closing bid quotation of the Common Stock as reported
on The Nasdaq Stock Market, if traded thereon, or if not traded thereon, the
average closing sale price if listed on national exchange (or other reporting
system that provides last sale prices), shall have for a period of 20
consecutive days on which such market is open for trading ending on the third
day prior to the date on which the Company gives the Notice of Redemption (as
defined below) has been at least $8.00. Notice of redemption (the "Notice

                                       A-2

<PAGE>



of Redemption") shall be given by the Company no less than thirty days before
the date fixed for redemption, all as provided in the Warrant Agreement. On and
after the date fixed for redemption, the Registered Holder shall have no right
with respect to this Warrant except to receive the $0.05 per Warrant upon
surrender of this Certificate.

         Under certain circumstances described in the Warrant Agreement, the
Underwriter shall be entitled to receive as a solicitation fee an aggregate of
eight percent (8%) of the Exercise Price of the Warrants represented hereby.

         Prior to due presentment for registration of transfer hereof, the
Company and the Warrant Agent may deem and treat the Registered Holder as the
absolute owner hereof and of each Warrant represented hereby (notwithstanding
any notations of ownership or writing hereon made by anyone other than a duly
authorized officer of the Company or the Warrant Agent) for all purposes and
shall not be affected by any notice to the contrary, except as provided in the
Warrant Agreement.

         This Warrant Certificate shall be governed by and construed in
accordance with the laws of the State of New York without regard to the
conflicts of law principles thereof.

         This Warrant Certificate is not valid unless countersigned by the
Warrant Agent.

         IN WITNESS WHEREOF, the Company has caused this Warrant Certificate to
be duly executed, manually or in facsimile by two of its officers thereunto duly
authorized and a facsimile of its corporate seal to be imprinted hereon.

         Dated __________ ___, 1997

SEAL                                    UNIVEC, INC.

                                        By: ____________________________________
                                            Chief Executive Officer

                                        By: ____________________________________
                                            Secretary
COUNTERSIGNED:
CONTINENTAL STOCK TRANSFER AND TRUST COMPANY,
     as Warrant Agent

By: __________________________________________________
     Authorized Officer


                                       A-3

<PAGE>



                                  EXERCISE FORM


                     To Be Executed by the Registered Holder
                          in order to Exercise Warrant


         The undersigned Registered Holder hereby irrevocably elects to exercise
_________ Warrants represented by this Warrant Certificate, and to purchase the
securities issuable upon the exercise of such Warrants, and requests that
certificates for such securities shall be issued in name of


                          PLEASE INSERT SOCIAL SECURITY
                           OR OTHER IDENTIFYING NUMBER

                           ___________________________

                           ___________________________

                           ___________________________

                     (please print or type name and address)

  and be delivered to

                           ___________________________

                           ___________________________

                           ___________________________
                     (please print or type name and address)

and if such number of Warrants shall not be all the Warrants evidenced by this
Warrant Certificate, that a new Warrant Certificate for the balance of such
Warrants be registered in the name of, and delivered to, the Registered Holder
at the address stated below.

                    IMPORTANT: PLEASE COMPLETE THE FOLLOWING:

     1.   If the exercise of this Warrant was solicited by Maidstone Financial,
          Inc., please check the following box. [ ]

     2.   THE EXERCISE OF THIS WARRANT WAS SOLICITED BY

          ---------------------------------------------------------------


                                       A-4

<PAGE>



     3.   IF THE EXERCISE OF THIS WARRANT WAS NOT SOLICITED, PLEASE CHECK THE
          FOLLOWING BOX. [ ]

Dated: _____________________________         X__________________________________

                                              __________________________________

                                              __________________________________
                                                            Address


                                              __________________________________
                                              Social Security or Taxpayer
                                              Identification Number


                                              __________________________________
                                              Signature Guaranteed




                                       A-5

<PAGE>


                                   ASSIGNMENT


                     To be Executed by the Registered Holder
                           in Order to Assign Warrants

FOR VALUE RECEIVED, ____________________________, hereby sells, assigns and
transfers unto

                          PLEASE INSERT SOCIAL SECURITY
                           OR OTHER IDENTIFYING NUMBER

                           ___________________________

                           ___________________________

                           ___________________________
                     (please print or type name and address)


________________________ of the Warrants represented by this Warrant
Certificate, and hereby irrevocably constitutes and appoints
______________________________________ as its/his/her attorney-in-fact to
transfer this Warrant Certificate on the books of the Company, with full power
of substitution in the premises.

Dated: ______________________                X_______________________________
                                                   Signature Guaranteed

THE SIGNATURE TO THE ASSIGNMENT OR THE EXERCISE FORM MUST CORRESPOND TO THE NAME
AS WRITTEN UPON THE FACE OF THIS WARRANT CERTIFICATE IN EVERY PARTICULAR,
WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER AND MUST BE
GUARANTEED BY A BANK, BROKER, DEALER, CREDIT UNION, SAVINGS ASSOCIATION OR OTHER
ENTITY WHICH IS A MEMBER IN GOOD STANDING OF THE SECURITIES TRANSFER AGENTS
MEDALLION PROGRAM.


                                       A-6



<PAGE>

THIS NOTE HAS NOT BEEN REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS AMENDED,
AND MAY NOT BE SOLD, TRANSFERRED,  ASSIGNED,  HYPOTHECATED OR OTHERWISE DISPOSED
OF UNTIL A  REGISTRATION  STATEMENT WITH RESPECT  THERETO IS DECLARED  EFFECTIVE
UNDER SUCH ACT OR THE COMPANY RECEIVES AN OPINION OF COUNSEL TO THE COMPANY THAT
AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF SUCH ACT IS AVAILABLE.

                                  UNIVEC, INC.

                               8% Promissory Note

$

     UNIVEC, INC., a Delaware  corporation (the "Company"),  for value received,
hereby  promises  to pay to the order  of______________________  (the  "Payee"),
residing  at__________________  , on the earlier of November  27,  1997,  or the
consummation of an initial public offering or private placement of the Company's
debt and/or equity  securities  resulting in gross proceeds to the Company of at
least  $5,000,000  (the  "Offering"),  the principal sum  of______________
($ ) Dollars  (or such  lesser  principal  amount  as may then be  outstanding),
together with unpaid interest (computed on the basis of a 360-day year of twelve
30-day  months)  (i) on the unpaid  balance at the rate of 8% per annum from the
date  hereof  and  (ii)  to the  extent  legally  enforceable,  on  any  overdue
installment  of interest at the rate of 8% per annum until the principal  hereof
and interest  thereon shall have been paid. The principal amount of the Note may
be prepaid by the Company,  in whole or in part, without premium or penalty,  at
any time.  Upon any prepayment of this Note, all accrued but unpaid  interest on
the  principal  amount being  prepaid shall be paid to the holder on the date of
prepayment.  All payments  hereunder  shall be applied first to interest then to
principal.

     If the Company  shall fail to make a payment of principal or interest  when
due; or shall make an assignment  for the benefit of creditors,  file a petition
in bankruptcy,  be adjudicated insolvent or bankrupt, suffer an order for relief
under any federal  bankruptcy  law,  petition or apply to any  tribunal  for the
appointment  of a  custodian,  receiver  or any  trustee  for the Company or any
substantial  part of his assets,  or shall  commence  any  proceeding  under any
bankruptcy,  reorganization,  arrangement,  readjustment of debt, dissolution or
liquidation  law or statute of any  jurisdiction,  whether now or  hereafter  in
affect;  or if there shall have been filed any such petition or application,  or
any such proceeding shall have been commenced against the Company, which remains
undismissed  for a period of sixty (60) days or more; or if the Company,  by any
act or omission shall indicate  consent to,  approve of or  acquiescence  in any
such  petition,  application or proceeding or the  appointment  of, a custodian,
receiver or any trustee for all or any substantial part of its properties, or if
the Company shall suffer such  custodianship,  receivership,  or  trusteeship to
continue  undischarged  for a period of sixty (60) days or more,  or the Company
violates any term or provision  of this Note and same  remains  unsecured  for a
period of 15 days after notice thereof by any  Noteholder,  then and in any such
event (each such event, an "Event of Default"), the outstanding principal amount
of this Note,  together with all accrued and unpaid interest  thereon,  shall be
and become immediately due and payable.



<PAGE>


     This Note is issued pursuant to a Subscription  Agreement,  dated as of the
date hereof, between the Company and the Payee (the "Subscription Agreement").

     Payments of  principal,  premium,  if any,  and  interest are to be made in
lawful  money of the United  States of America  at the  principal  office of the
Company.

     1. Restrictions on Transfer.

     The holder  acknowledges  that he has been advised by the Company that this
Note has not been  registered  under the Securities Act of 1933, as amended (the
"Securities  Act"), that the Note is being issued, on the basis of the statutory
exemptions  provided  by  Sections  4(2)  and  4(6)  of the  Securities  Act and
Regulation D promulgated  under Section 4(2) of the Securities Act  ("Regulation
D") relating to transactions by an issuer not involving any public offering, and
that the Company's  reliance upon these  statutory  exemptions are based in part
upon  the  representations  made  by the  holder  in the  holder's  Subscription
Agreement,  including  the  representation  that the  holder  is an  "accredited
investor" (as defined in Rule 501(a) of  Regulation  D. The holder  acknowledges
that he has been informed by the Company of, or is otherwise  familiar with, the
nature  of the  limitations  imposed  by the  Securities  Act and the  rules and
regulations thereunder on the transfer of securities. In particular,  the holder
agrees that no sale, assignment, hypothecation or transfer of this Note shall be
valid or effective,  and the Company shall not be required to give any effect to
any such  sale,  assignment,  hypothecation  or  transfer,  unless (i) the sale,
assignment,  hypothecation  or  transfer  of this Note is  registered  under the
Securities  Act (and the Company has no  obligation  or intention to so register
the Note) or (ii) the Note is sold,  assigned,  hypothecated  or  transferred in
accordance  with all the  requirements  and  limitations  of Rule 144  under the
Securities Act, or such sale,  assignment,  or transfer is otherwise exempt from
registration under the Securities Act.

     2. Covenants of Company.

     a. The Company  covenants  and agrees  that,  so long as this Note shall be
outstanding, it will:

          (i) Promptly  pay and  discharge  all lawful  taxes,  assessments  and
     governmental  charges or levies imposed upon the Company or upon its income
     and profits,  or upon any of its property,  before the same shall become in
     default,  as well as all lawful  claims for labor,  materials  and supplies
     which, if unpaid, might become a lien or charge upon such properties or any
     part thereof; provided,  however, that the Company shall not be required to
     pay and discharge any such tax,  assessment,  charge, levy or claim so long
     as the validity  thereof  shall be  contested in good faith by  appropriate
     proceedings, and the Company shall set aside on its books adequate reserves
     with  respect  to any  such  tax,  assessment,  charge,  levy or  claim  so
     contested.

          (ii) Do or cause to be done all things  necessary to preserve and keep
     in full force and effect its corporate existence, rights and franchises and
     comply with all laws applicable to the Company as its counsel may advise;

          (iii) At all times maintain,  preserve,  protect and keep its property
     used

                                        2


<PAGE>


     and useful in the conduct of its business in good repair, working order and
     conditions,  and from time to time make all  needful  and  proper  repairs,
     renewals,  replacements,  betterments and improvements thereto, so that the
     business   carried  on  in   connection   therewith  may  be  properly  and
     advantageously conducted at all times;

          (iv) Will not issue or incur any indebtedness which is senior to or in
     parity with the Company's  obligations  under this Note, except for certain
     Notes of which this Note forms a part of a series  aggregating  a principal
     amount not in excess of $1,000,000.

          (v)  Keep  adequately  insured  by  financially  sound  insurers,  all
     property of a character  usually insured by similar  corporations and carry
     such other insurance as is usually carried by similar corporations; and

          (vi) At all times keep true and correct books, records and accounts.

     3. Miscellaneous.

     3.1 All the covenants and agreements made by the Company in this Note shall
bind its successors and assigns.

     3.2 No recourse shall be had for the payment of the principal,  interest or
premium,  if any, on this Note or for any claim based hereon or otherwise in any
manner in respect  hereof,  against any  incorporator,  stockholder,  officer or
director,  past,  present  or  future,  of the  Company  or of  any  predecessor
corporation,  whether by virtue of any  constitutional  provision  or statute or
rule of law, or by the  enforcement of any assessment or penalty or in any other
manner, all such liability being expressly waived and released by the acceptance
hereof and as part of the consideration for the issue hereof.

     3.3 No course of dealing  between the Company and the holder  hereof  shall
operate as a waiver of any right of any holder hereof,  and no delay on the part
of the holder in  exercising  any right  hereunder  shall so  operate.  Any such
waiver must be in writing and signed by the Holder and the Company.

     3.4 This Note may be amended only by a written  instrument  executed by the
Company and the holder hereof.  Any amendment  shall be endorsed upon this Note,
and all future holders shall be bound thereby.

     3.5 All communications  provided for herein shall be sent, except as may be
otherwise  specifically  provided,  by  registered  or certified  mail if to the
holder of this Note, to the address shown on the books of the Company; and if to
the Company, to: UNIVEC, Inc., 999 Franklin Avenue, Garden City, New York 11530,
Attention:  Chief Executive Officer, or to such other address as the Company may
advise the holder of this Note in writing.  Notices  shall be deemed  given when
mailed.

     3.6  The  provisions  of this  Note  shall  in all  respects  be  construed
according to, and the rights and  liabilities of the parties hereto shall in all
respects be governed by, the laws of the State of New York.

                                        3


<PAGE>

     3.7 In the event that this Note is placed in the hands of an  attorney  for
collection,  or in the event that any action be  instituted on this Note, or any
action is taken with respect to a default hereunder,  the holder hereof shall be
entitled  to the  payment  by the  Company  and any other  party  liable for the
obligations  of the Company  hereunder of all expenses in connection  therewith,
including, without limitation, reasonable attorney fees.

     3.8 The headings of the Sections of this Note are inserted for  convenience
only and shall not be deemed to constitute a part of this Note.

     IN WITNESS  WHEREOF,  UNIVEC,  INC.  caused this Note to be executed in its
corporate  name by its  Chief  Executive  Officer,  and its  seal to be  affixed
hereto.

Dated: November 27, 1996

                                              UNIVEC, INC.



                                              By: /s/ Joel Schoenfeld
                                                  ----------------------
                                                  Joel Schoenfeld
                                                  Chief Executive Officer


[seal]


/s/ Flora Schoenfeld
- --------------------
Flora Schoenfeld
Secretary




                                        4




<PAGE>



No. UBW-                                    Warrant to Purchase___________shares
                                            of Common Stock


                                  UNIVEC, INC.

                          Common Stock Purchase Warrant

                                November 27, 1996


     NEITHER THIS WARRANT NOR THE SHARES OF COMMON STOCK  ISSUABLE UPON EXERCISE
HEREOF HAVE BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS AMENDED,  AND
MAY NOT BE SOLD,  TRANSFERRED,  ASSIGNED,  HYPOTHECATED OR OTHERWISE DISPOSED OF
UNTIL A REGISTRATION  STATEMENT WITH RESPECT THERETO IS DECLARED EFFECTIVE UNDER
SUCH ACT OR THE COMPANY  RECEIVES  AN OPINION OF COUNSEL TO THE COMPANY  THAT AN
EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE ACT IS AVAILABLE.

     THIS CERTIFIES THAT___________________________(hereinafter sometimes called
the "Holder"), residing  at______________________ , is entitled to purchase from
UNIVEC,  Inc., a Delaware  corporation (the "Company"),  at the price and during
the period hereinafter specified,  up to____________ ( ) shares of the Company's
common  stock,  $.001 par value (the  "Common  Stock").  Capitalized  terms used
herein  without  definition  shall  have the  meanings  assigned  to them in the
Company's  Confidential Private Placement Memorandum dated October 17, 1996 (the
"Memorandum").

     This  Warrant,  together  with  warrants  of  like  tenor,  is  subject  to
adjustment in accordance with Paragraph 7 of this Warrant.

     1. (a) The rights  represented  by this Warrant shall be exercisable at any
time during the period  commencing  November 27, 1997 and ending on November 26,
2001 (the  "Expiration  Date")  at a  purchase  price of $4.50  per  share  (the
"Exercise  Price"),  subject to adjustment in accordance with Paragraph 7. After
the  Expiration  Date,  the Holder shall have no right to purchase any shares of
Common Stock purchasable upon exercise of this Warrant.

     (b) Notwithstanding  anything herein contained to the contrary, the Company
and the  Holder  agree that in the event  that the terms and  conditions  of the
redeemable  warrants to be  registered  in the  registration  statement  for the
Company's  Initial Public Offering are not identical to the terms and conditions
of this Warrant,  this Warrant will be modified upon the closing of such Initial
Public  Offering to conform  exactly to the terms and conditions of the Warrants
offered pursuant to such registration statement.

     2. The rights  represented  by this  Warrant may be  exercised  at any time
prior to the Expiration  Date, in whole or in part, by (i) the surrender of this
Warrant (with the purchase

                                        1


<PAGE>


form at the end hereof properly  executed) at the principal  executive office of
the Company (or such other  office or agency of the Company as it may  designate
by notice in writing to the Holder at the address of the Holder appearing on the
books of the  Company);  and (ii) payment to the Company of the  Exercise  Price
then in  effect  for the  number  of  shares  specified  in the  above-mentioned
purchase  form together  with  applicable  stock  transfer  taxes,  if any. This
Warrant  shall be  deemed  to have  been  exercised,  in whole or in part to the
extent  specified,  immediately  prior to the close of business on the date this
Warrant is  surrendered  and payment is made in  accordance  with the  foregoing
provisions of this Paragraph 2, and the person or persons in whose name or names
the certificates for shares of Common Stock shall be issuable upon such exercise
shall  become the holder or holders of record of such Common  Stock at that time
and date.  The  certificate  or  certificates  for the Common Stock so purchased
shall be  delivered  to such person or persons  within a  reasonable  time,  not
exceeding thirty (30) days,  after the rights  represented by this Warrant shall
have been so exercised.

     3.  Neither  this  Warrant  nor the shares of Common  Stock  issuable  upon
exercise  hereof  have been  registered  under the  Securities  Act of 1933,  as
amended (the "1933 Act"),  nor under any state  securities  law and shall not be
sold,  transferred,  assigned,  hypothecated  or  otherwise  disposed of until a
registration  statement with respect  thereto  becomes or is declared  effective
under the 1933 Act or the Company  receives an opinion of counsel to the Company
stating that an exemption from the registration requirements of the 1933 Act and
such state securities laws is available.

     4.  Except as set forth in the  Registration  Rights  Agreement  annexed as
Exhibit D to the Memorandum, the Company shall not be obligated to register this
Warrant or the shares of Common Stock  issuable upon exercise of this Warrant in
accordance with the 1933 Act.

     5. The Company  covenants  and agrees that all shares of Common Stock which
may be issued upon exercise of this Warrant  will,  upon  issuance,  be duly and
validly  issued,  fully paid and  nonassessable  and no personal  liability will
attach to the Holder  thereof.  The Company  further  covenants  and agrees that
until the  Expiration  Date,  the Company will at all times have  authorized and
reserved a  sufficient  number of shares of its Common  Stock to provide for the
exercise of this Warrant.

     6. This  Warrant  shall not entitle  the Holder to any  rights,  including,
without limitation, voting rights, as a stockholder of the Company.


     7. The  Exercise  Price in  effect  at any time and the  number  of  shares
purchasable  upon the  exercise of this Warrant  shall be subject to  adjustment
from time to time upon the happening of certain events as follows:

     (a) In case the  Company  shall  (i)  issue  shares  of  Common  Stock as a
dividend  or  distribution  on its  outstanding  shares  of Common  Stock,  (ii)
subdivide or reclassify  its  outstanding  shares of Common Stock into a greater
number of shares, or (iii) combine or

                                        2


<PAGE>


reclassify  its  outstanding  shares of Common  Stock  into a smaller  number of
shares,  or (iv) the outstanding  shares of Common Stock are at any time changed
into or exchanged for a different  number or kind of shares or other security of
the  Company  or  of  another   corporation  through   reorganization,   merger,
consolidation,  liquidation or recapitalization, then appropriate adjustments in
the number and kind of such securities subject to this Warrant shall be made and
the Exercise Price in effect at the time of the record date for such dividend or
distribution  or  of  the  effective  date  of  such  subdivision,  combination,
reclassification,   reorganization,   merger,   consolidation,   liquidation  or
recapitalization  shall be  proportionately  adjusted so that the holder of this
Warrant  exercised  after such date shall be entitled  to receive the  aggregate
number and kind of shares of which,  if this Warrant had been  exercised by such
Holder  immediately  prior to such date,  he would have owned upon such exercise
and been  entitled to receive  upon such  dividend,  distribution,  subdivision,
combination,  liquidation  or  recapitalization.  For  example,  if the  Company
declares a 2 for 1 stock  distribution and the Exercise Price  immediately prior
to such  event was $4.50 per  share and the  number of shares  purchasable  upon
exercise of this Warrant was 62,500,  the adjusted  Exercise  Price  immediately
after  such  event  would be $2.25 per share and the  adjusted  number of shares
purchasable  upon  exercise  of this  Warrant  would  be  125,000  shares.  Such
adjustment  shall be made  successively  whenever  any event  listed above shall
occur.

     (b) Whenever the Exercise  Price  payable upon  exercise of this Warrant is
adjusted  pursuant to Subparagraph (a) above,  the number of shares  purchasable
upon exercise of this Warrant shall  simultaneously  be adjusted by  multiplying
the number of shares  issuable  upon  exercise of this  Warrant by the  Exercise
Price in effect on the date hereof and  dividing  the product so obtained by the
Exercise Price, as adjusted.

     (c) No  adjustment  in the  Exercise  Price shall be  required  unless such
adjustment  would require an increase or decrease of at least five cents ($0.05)
in such price;  provided,  however, that any adjustments which by reason of this
Subparagraph  (c) are not required to be made shall be carried forward and taken
into account in any subsequent  adjustment  required to be made  hereunder.  All
calculations  under  this  Paragraph  7 shall  be made  to the  nearest  cent or
one-hundredth  of a share,  as the case may be.  Anything in this Paragraph 7 to
the contrary  notwithstanding,  the Company shall be entitled,  but shall not be
required,  to make such  changes in the  Exercise  Price,  in  addition to those
required by this Paragraph 7, as it shall determine, in its sole discretion,  to
be  advisable  in order that any  dividend or  distribution  in shares of Common
Stock,  or any  subdivision,  reclassification  or  combination of Common Stock,
hereafter  made by the  Company  shall not  result  in any  Federal  income  tax
liability  to the  holders of Common  Stock or  securities  convertible  into or
exercisable for Common Stock.

     (d) Whenever the Exercise Price is adjusted as herein provided, the Company
shall compute the adjusted  Exercise  Price in accordance  with this Paragraph 7
and  shall  prepare a  certificate  signed by the  chief  financial  officer  or
accounting officer of the Company setting forth the adjusted Exercise Price, and
shall  promptly  cause a notice  setting forth the adjusted  Exercise  Price and
adjusted number of shares issuable upon exercise of this Warrant to be

                                        3


<PAGE>


mailed to the  Holder,  at its  address  set  forth  herein,  and shall  cause a
certified copy thereof to be mailed to the Company's transfer agent, if any. The
Company  may  (but  shall  not be  required  to)  retain  a firm of  independent
certified  public  accountants  selected by the Board of Directors (which may be
the  regular  accountants  employed  by the  Company)  to make  any  computation
required  by this  Section  7, and a  certificate  signed by such firm  shall be
conclusive evidence of the correctness of such adjustment.

     (e) In the  event  that at any  time,  as a result  of an  adjustment  made
pursuant  to the  provisions  of this  Paragraph  7, the Holder of this  Warrant
thereafter shall become entitled to receive any shares of the Company other than
Common  Stock  thereafter  the number of such other  shares so  receivable  upon
exercise of this Warrant shall be subject to  adjustment  from time to time in a
manner and on terms as nearly  equivalent as practicable to the provisions  with
respect to the Common Stock contained in  Subparagraphs  (a) to (c),  inclusive,
above.

     (f)  Notwithstanding  any adjustment in the Exercise Price or the number or
kind of shares of Common Stock  purchasable  upon the exercise of this  Warrant,
certificates  for Warrants  issued prior or  subsequent to such  adjustment  may
continue to express the same price and number and kind of shares of Common Stock
as are initially issuable pursuant to this Warrant.

     (g) The Company may, but under no circumstances is obligated to, modify the
terms of this  Warrant to provide for an earlier  commencement  of the  Exercise
Period,  or to extend the Exercise Period or to lower the Exercise Price, at any
time prior to the expiration of this Warrant.

     8. Upon the  consummation  of an initial  public  offering of the Company's
Common  Stock  and  redeemable  Common  Stock  purchase  warrants  ("the  Public
Warrants") underwritten by Maidstone Financial, Inc., this Warrant automatically
will be  converted  into the same  number of Public  Warrants  as the  number of
shares of Common Stock  purchasable  upon  exercise of this Warrant  immediately
prior thereto.


                                        4


<PAGE>



     9. This Agreement  shall be governed by and in accordance  with the laws of
the State of New York.

     IN WITNESS  WHEREOF,  UNIVEC,  Inc. has caused this Warrant to be signed by
its duly authorized officer as of the date set forth below.



                                               UNIVEC, INC.



                                               By: /s/ Joel Schoenfeld
                                                   ----------------------
                                                   Joel Schoenfeld
                                                   Chief Executive Officer

Dated: November 27, 1996



                                        5

<PAGE>


                                  EXERCISE FORM

                          To Be Executed by the Holder
                          in Order to Exercise Warrant

     The undersigned  Holder hereby  irrevocably elects to exercise this Warrant
and to purchase shares of the Company's  Common Stock issuable upon the exercise
of such Warrant,  and requests that  certificates  for such securities  shall be
issued in name of:

                  ______________________________________________________

                  ______________________________________________________

                  ______________________________________________________
                  (please print or type name and address)


                  ______________________________________________________
                  (please insert social security or other identifying number)


and be delivered:

                  ______________________________________________________

                  ______________________________________________________

                  ______________________________________________________
                  (please print or type name and address)


                  ______________________________________________________
                  (please insert social security or other identifying number)





and if such  number  of  shares of  Common  Stock  shall  not be all the  shares
evidenced by this Warrant  Certificate,  that a new Warrant  Certificate for the
balance  of such  shares be  registered  in the name of, and  delivered  to, the
Holder.



                                        6



<PAGE>

                          REGISTRATION RIGHTS AGREEMENT


     THIS  REGISTRATION  RIGHTS  AGREEMENT,  dated  as of  _______,  1996 by and
between UNIVEC,  Inc., a Delaware  corporation (the  "Company"),  and the person
whose  name  appears on the  signature  page  attached  hereto  (individually  a
"Holder",  and  together  with the  holders of other  securities  of the Company
issued in connection with the private placement offering hereinafter  described,
the "Holders").

     WHEREAS,  pursuant to a Confidential  Private  Placement  Memorandum  dated
October 17, 1996 (the "Memorandum") and accompanying Subscription Agreement, the
Company has offered in an offering (the "Offering") exempt from the registration
requirements  of the  Securities  Act of 1933,  as amended (the "1933  Act"),  a
minimum of 20 Units and a maximum of 40 Units,  each Unit  consisting of (i) the
Company's 8% promissory  note (the "Note") in the  principal  amount of $25,000,
due upon the earlier of 12 months  following the date of the initial  closing of
the  Offering  or the  consummation  of an initial  public  offering  or private
placement of the  Company's  debt and/or  equity  securities  resulting in gross
proceeds  to  the  Company  of at  least  $5,000,000,  and  (ii)  warrants  (the
"Warrants")  to  purchase up to 62,500  shares of the  Company's  Common  Stock,
$0.001 par value (the "Common Stock");

     WHEREAS,  the  Warrants  are  exercisable  for a period  of five (5)  years
commencing 12 months  following the date of the initial closing of the Offering,
and each  Warrant  entitles  the Holder  thereof to purchase one share of Common
Stock at an initial exercise price of $4.50 per share;

     WHEREAS,  in order to induce the  Purchasers of the Units to enter into the
Subscription  Agreement  and to purchase the Units,  the Company and the Holders
have agreed to enter into this Agreement; and

     WHEREAS,  it is intended by the Company and the Holders that this Agreement
shall become effective immediately upon the acquisition by the Holder of Units;

     NOW,  THEREFORE,  in consideration of the premises and the mutual covenants
contained herein and in the Subscription Agreement, the Company hereby agrees as
follows:

REGISTRATION RIGHTS.

     1. Registration Rights

     a. "Piggyback Registration". If the Company at any time proposes to
register any of its securities under the 1933 Act (other than in connection with
a dividend reinvestment, employee stock option or other employee benefit plan,
or in connection with an acquisition, merger, consolidation or reorganization),
the Company shall request that the managing underwriter (if any) of such
offering include in such registration the shares of


<PAGE>


Common Stock issued and issuable upon exercise of the Warrants (the "Warrant
Shares"), and if warrants are being offered in the public offering, the Warrants
(which shall automatically convert to be identical to the warrants offered in
the public offering). If such managing underwriter agrees to include the
Registrable Securities (as hereinafter defined) in the underwritten offering,
the Company shall at such time give prompt written notice to all Holders of its
intention to effect such registration and of such Holders' right to include
Registrable Securities in such proposed registration, and upon the request of
any such Holder delivered to the Company within twenty (20) days after giving
such notice (which request shall specify the Registrable Securities intended to
be disposed of by such Holder and the intended method of disposition thereof),
the Company shall include such Registrable Securities held by such Holder
requested to be included in such registration; provided, however, that:

     (i) If, at any time  after  giving  such  written  notice of the  Company's
intention to register any of the Holders'  Registrable  Securities  and prior to
the effective date of the  registration  statement filed in connection with such
registration,  the Company shall  determine for any reason not to register or to
delay the registration of such Registrable Securities, at its sole election, the
Company  may give  written  notice  of such  determination  to each  Holder  and
thereupon  shall be  relieved of its  obligation  to  register  any  Registrable
Securities issued or issuable in connection with such registration (but not from
its  obligation  to pay  registration  expenses in  connection  therewith  or to
register the Registrable  Securities in a subsequent  registration);  and in the
case of a determination to delay a registration  shall thereupon be permitted to
delay registering any Registrable Securities for the same period as the delay in
respect of securities being registered for the Company's own account.

     (ii) If the managing underwriter (if any) of such offering shall advise the
Company  that the  inclusion of all or a portion of the  Registrable  Securities
requested  by the  Holders to be included in the  registration  statement  would
materially and adversely effect such offering,  then all or a specified  portion
of the Registrable Securities shall be excluded from such registration statement
(in case of an exclusion  as to a portion of the  Registrable  Securities,  such
portion to be excluded  shall be allocated  among the Holders and any affiliates
of the Company  including  securities of the same class to be registered in such
underwritten  offering in proportion  to the  respective  number of  Registrable
Securities and other  securities of the same class requested to be registered by
each such  Holder  and  affiliate).  In such  event the  Company  shall give the
applicable  Holders  prompt  notice  of the  number  of  Registrable  Securities
excluded from such registration at the request of the managing  underwriter.  No
such exclusion shall reduce the securities  being offered by the Company for its
own account to be included in such registration statement.

     As used herein, "Registrable Securities" shall mean the Warrants and the
Warrant Shares as long as such securities are ineligible for sale under
subparagraph (k) of Rule 144 or are not registered; provided, however,
Registrable Securities shall not include any securities that have been sold
pursuant to Rule 144 or an effective registration statement.

                                      -2-


<PAGE>


     (b) Option to Include Registrable Securities in Offering. The Holders,
subject to the provisions of Section 1, shall have the option to include their
Registrable Securities in the Company's underwritten offering. The Company shall
not be required to include any of the Holders' Registrable Securities in an
underwritten offering of the Company's securities unless such Holders accept the
terms of the underwriting as agreed upon between the Company and the
underwriters selected by it (provided such terms are usual and customary for
selling stockholders) and the Holders agree to execute and/or deliver such
documents in connection with such registration as the Company or the managing
underwriter may reasonably request.

     (c) Mandatory Registration. In the event the Holders have not sold all of
their Registrable Securities in connection with a registration statement
pursuant to Section l(a), the Company shall use its best efforts to effect the
registration of all remaining Registrable Securities as soon as practicable, but
not later than 180 days after the effective date of such registration statement;
provided, however, that such period may be extended or delayed by the Company
for one period of up to 90 days if, upon the advice of counsel at the time such
registration statement is required to be filed, or at the time the Company is
required to exercise its best efforts to cause such registration statement to
become effective, such delay is advisable and in the best interests of the
Company because of the existence of non-public material information, or to allow
the Company to complete any pending audit of its financial statements.

     (d) Registration Rights Not Applicable If Rule 144 or Other Exemption
Available. Notwithstanding anything to the contrary in Section 1(a) and (c)
hereof, the registration rights granted in Section 1(a) and 1(c) hereof shall
not apply if in the opinion of counsel to the Company an exemption from the
registration requirements of the 1933 Act is available for the resale of the
Registrable Securities pursuant to Rule 144 or otherwise.

     (e) Cooperation with Company. The Holder will cooperate with the Company in
all respects in connection with this Agreement, including, timely supplying all
information reasonably requested by the Company and executing and returning all
documents reasonably requested in connection with the registration and sale of
the Registrable Securities.

     2. Registration Procedures. If and whenever the Company is required by any
of the provisions of this Agreement to use its best efforts to effect the
registration of any of the Registrable Securities under the 1933 Act, the
Company shall (except as otherwise provided in this Agreement), as expeditiously
as possible:

     (a) prepare and file with the Securities and Exchange Commission (the
"Commission") a registration statement and shall use its best efforts to cause
such registration statement to become effective until all of the Registrable
Securities are sold or become capable of being publicly sold without
registration under the 1933 Act.

                                      -3-


<PAGE>


     (b) prepare and file with the Commission such amendments and supplements to
such registration statement and the prospectus used in connection therewith as
may be necessary to keep such registration statement effective and to comply
with the provisions of the 1933 Act with respect to the sale or other
disposition of all securities covered by such registration statement whenever
the Holder or Holders of such securities shall desire to sell or otherwise
dispose of the same (including prospectus supplements with respect to the sales
of securities or the exercise of Warrants from time to time in connection with a
registration statement pursuant to Rule 415 of the Commission);

     (c) furnish to the Holder such numbers of copies of a summary prospectus or
other prospectus, including a preliminary prospectus or any amendment or
supplement to any prospectus, in conformity with the requirements of the 1933
Act, and such other documents, as the Holder may reasonably request in order to
facilitate the public sale or other disposition of the securities owned by the
Holder;

     (d) use its best efforts to register and qualify the securities covered by
such registration statement under such other securities or blue sky laws of such
jurisdictions as the Holder shall reasonably request, and do any and all other
acts and things which may be reasonably necessary or advisable to enable such
Holder to consummate the public sale or other disposition in such jurisdictions
of the securities owned by such Holder, except that the Company shall not for
any such purpose be required to qualify to do business as a foreign corporation
in any jurisdiction wherein it is not so qualified or to file therein any
general consent to service of process;

     (e) use its best efforts to list such securities on any securities exchange
on which any securities of the Company is then listed, if the listing of such
securities is then permitted under the rules of such exchange;

     (f) enter into and perform its obligations under an underwriting agreement,
if the offering is an underwritten offering, in usual and customary form, with
the managing underwriter or underwriters of such underwritten offering;

     (g) notify the Holder of Registrable Securities covered by such
registration statement, at any time when a prospectus relating thereto covered
by such registration statement is required to be delivered under the 1933 Act,
of the happening of any event of which it has knowledge as a result of which the
prospectus included in such registration statement, as then in effect, includes
an untrue statement of a material fact or omits to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading in the light of the circumstances then existing; and

     (h) take such other actions as shall be reasonably requested by any Holder
to facilitate the registration and sale of the Registrable Securities; provided,
however, that the Company shall not be obligated to take any actions not
specifically required elsewhere herein which in the aggregate would cost in
excess of $5,000.

                                      -4-


<PAGE>


     3. Restrictions on Transfer of Registrable Securities. The Holder agrees
that, at the request of the managing underwriter (the "Managing Underwriter")
for a public offering of the Company's securities, the undersigned will enter
into an agreement with such Managing Underwriter pursuant to which the
undersigned shall agree (i) not to sell, transfer, convey or otherwise dispose
of any of the securities of the Company owned by the undersigned, including but
not limited to the Registrable Securities, whether by registration or otherwise,
for a period of 24 months after the date the Company's registration statement
relating to said underwritten public offering becomes or is declared effective
by the Commission, without the prior written consent of said Managing
Underwriter, and furthermore, that by execution of the signature page of this
Registration Rights Agreement, the undersigned hereby appoints the directors and
officers of the Company, and each of them acting in the absence of the others,
with full power of substitution, as attorney-in-fact to execute an agreement
with the Managing Underwriter to the effect set forth above, in the event the
undersigned, upon the request of the Managing Underwriter, fails or refuses to
execute such an agreement with the Managing Underwriter after a reasonable
period of time following such request.

     4. Expenses. All expenses incurred in any registration of the Holder's
Registrable Securities under this Agreement shall be paid by the Company,
including, without limitation, printing expenses, fees and disbursements of
counsel for the Company, expenses of any audits to which the Company shall agree
or which shall be necessary to comply with governmental requirements in
connection with any such registration, all registration and filing fees for the
Holders' Registrable Securities under federal and state securities laws, and
expenses of complying with the securities or blue sky laws of any jurisdictions
pursuant to Section 2(d); provided, however, the Company shall not be liable for
(a) any discounts or commissions to any underwriter; (b) any stock transfer
taxes incurred with respect to Registrable Securities sold in the Offering or
(c) the fees and expenses of counsel for any Holder, provided that the Company
will pay the costs and expenses of Company counsel when the Company's counsel is
representing any or all selling security holders.

     5. Indemnification. In the event any Registrable Securities are included in
a registration statement pursuant to this Agreement:

     (a) Company Indemnity. Without limitation of any other indemnity provided
to any Holder, either in connection with the Offering or otherwise, to the
extent permitted by law, the Company shall indemnify and hold harmless each
Holder, the affiliates, officers, directors and partners of each Holder, any
underwriter (as defined in the 1933 Act) for such Holder, and each person, if
any, who controls such Holder or underwriter (within the meaning of the 1933 Act
or the Securities Exchange Act of 1934 (the "Exchange Act"), against any losses,
claims, damages or liabilities (joint or several) to which they may become
subject under the 1933 Act, the Exchange Act or other federal or state law,
insofar as such losses, claims, damages or liabilities (or actions in respect
thereof) arise out of or are based upon any of the following statements,
omissions or violations (collectively a "Violation"): (i) any untrue statement
or alleged untrue statement of a material fact contained

                                      -5-


<PAGE>


in any registration statement including any preliminary prospectus or final
prospectus contained therein or any amendments or supplements thereto, (ii) the
omission or alleged omission to state therein a material fact required to be
stated therein, or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading, (iii) any violation or
alleged violation by the Company of the 1933 Act, the Exchange Act, or any state
securities law or any rule or regulation promulgated under the 1933 Act, the
Exchange Act or any state securities law, and in each case, the Company shall
reimburse the Holder, and each such affiliate, officer or director or partner,
underwriter or controlling person for any legal or other documented
out-of-pocket expenses incurred by them in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, however,
that the Company shall not be liable to any Holder or any other party in any
such case for any such loss, claim, damage, liability or action to the extent
that it arises out of or is based upon a Violation which occurs in reliance upon
and in conformity with written information furnished expressly for use in
connection with such registration by the Holder or any underwriter or any other
officer, director or controlling person thereof.

     (b) Holder Indemnity. The Holder shall indemnify and hold harmless the
Company, its affiliates, its counsel, officers, directors, shareholders and
representatives, any underwriter (as defined in the 1933 Act) and each person,
if any, who controls the Company or the underwriter (within the meaning of the
1933 Act or the Exchange Act), against any losses, claims, damages, or
liabilities (joint or several) to which they may become subject under the 1933
Act, the Exchange Act or any state securities law, and the Holder shall
reimburse the Company and each such affiliate, counsel, officer, director,
shareholder, partner, or representative, underwriter or controlling person for
any legal or other documented out-of-pocket expenses incurred by them in
connection with investigating or defending any such loss, claim, damage,
liability or action; insofar as such losses, claims, damages or liabilities (or
actions and respect thereof) arise out of or are based upon any statements or
information provided in writing by such Holder to the Company in connection with
the offer or sale of Registrable Securities. Notwithstanding the above, the
Holder's indemnification shall be limited to an amount equal to the proceeds to
the Holder of the Registrable Securities sold for the account of the Holder.

     (c) Notice: Right to Defend. Promptly after receipt by an indemnified party
under this Section 5 of notice of the commencement of any action (including any
governmental action), such indemnified party shall, if a claim in respect
thereof is to be made against any indemnifying party under this Section 5,
deliver to the indemnifying party a written notice of the commencement thereof
and the indemnifying party shall have the right to participate in and if the
indemnifying party agrees in writing that it will be responsible for any
documented out-of pocket costs or expenses, judgments, damages and losses
incurred by the indemnified party with respect to such claim, jointly with any
other indemnifying party similarly noticed, to assume the defense thereof with
counsel mutually satisfactory to the parties; provided, however, that an
indemnified party shall have the right to retain its own counsel, with the fees
and documented out-of pocket expenses to be paid by the indemnifying party, if
the indemnified party reasonably believes that representation of such
indemnified party by the counsel retained by the indemnifying party would be
inappropriate due to actual or potential differing interests between such
indemnified

                                      -6-

<PAGE>


party and any other party represented by such counsel in such proceeding. The
failure to deliver written notice to the indemnifying party within a reasonable
time of the commencement of any such action shall relieve such indemnifying
party of any liability to the indemnified party under this Agreement only if and
to the extent that such failure is prejudicial to its ability to defend such
action, and the omission so to deliver written notice to the indemnifying party
will not relieve it of any liability that it may have to any indemnified party
otherwise than under this Agreement.

     (d) Contribution. If the indemnification provided for in this Agreement is
held by a court of competent jurisdiction to be unavailable to an indemnified
party with respect to any loss, liability, claim, damage or expense referred to
therein, then the indemnifying party, in lieu of indemnifying such indemnified
party thereunder, shall contribute to the amount paid or payable by such
indemnified party as a result of such loss, liability, claim, damage or expense
in such proportion as is appropriate to reflect the relative fault of the
indemnifying party on the one hand and of the indemnified party on the other
hand in connection with the statements or omissions which resulted in such loss,
liability, claim, damage or expense as well as any other relevant equitable
considerations. The relevant fault of the indemnifying party and the indemnified
party shall be determined by reference to, among other things, whether the
untrue or alleged untrue statement of a material fact or the omission to state a
material fact relates to information supplied by the indemnifying party or by
the indemnified party and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission.
Notwithstanding the foregoing, the amount the Holder shall be obligated to
contribute pursuant to the Agreement shall be limited to an amount equal to the
proceeds to the Holder of the Registrable Securities sold pursuant to the
registration statement which gives rise to such obligation to contribute (less
the aggregate amount of any damages which the Holder has otherwise been required
to pay in respect of such loss, claim, damage, liability or action or any
substantially similar loss, claim, damage, liability or action arising from the
sale of such Registrable Securities).

     (e) Survival of Indemnity. The indemnification provided by this Agreement
shall be a continuing right to indemnification and shall survive the
registration and sale of any Registrable Securities by any person entitled to
indemnification hereunder and the expiration or termination of this Agreement.

     6. Assignment of Registration Rights. The rights of the Holder under this
Agreement, including the rights to cause the Company to register Registrable
Securities may not be assigned without the written prior consent of the Company.

     7. Limitations on Other Registration Rights. Except as otherwise set forth
in this Agreement, the Company shall not, without the prior written consent of
the Holder of Registrable Securities, file any registration statement filed on
behalf of any person (including 

                                      -7-

<PAGE>


the Company) other than the Holder to become effective during any period when
the Company is not in compliance with this Agreement.

     8. Remedies Upon Default or Delay. The Company acknowledges that the
material breach of any part of this Agreement may cause irreparable harm to the
Holder and that monetary damages alone may be inadequate in certain
circumstances. The Company therefore agrees that in the event of such a material
breach of any part of this Agreement by the Company, the Holder shall be
entitled to injunctive relief or such other applicable remedy as a court of
competent jurisdiction may provide. Nothing contained herein will be construed
to limit a Holder's right to any remedies at law, including recovery of damages
for breach of any part of this Agreement.

     9. Notices.

     (a) All communications under this Agreement shall be in writing and shall
be mailed by first class mail, postage prepaid, or telegraphed or telexed (with
confirmation of receipt transmitted by mail, or delivered by hand or by
overnight delivery service as provided herein), or delivered by hand or by
overnight delivery service,



               i.   If to the Company, at:

                    UNIVEC, Inc.
                    999 Franklin Avenue
                    Garden City, New York 11530
                    Attention: Joel Schoenfeld

or at such other  address as it may have  furnished  in writing to the Holder of
Registrable Securities at the time outstanding, or

               ii. if to the Holder of any Registrable Securities, to the
address of such Holder as it appears in the stock and/or warrant ledger of the
Company.

     (b) Any notice so addressed, when mailed by registered or certified mail
shall be deemed to be given three days after so mailed, when telegraphed or
telexed shall be deemed to be given when transmitted, or when delivered by hand
or overnight shall be deemed to be given when delivered.

     10. Successors and Assigns. Except as otherwise expressly provided herein,
this Agreement shall inure to the benefit of and be binding upon the successors
and permitted assigns of the Company and the Holder.

     11. Amendment and Waiver. This Agreement may be amended, and the observance
of any term of this Agreement may be waived, but only with the written consent
of the Company and the Holder; provided, however, that no such amendment or
waiver shall


                                      -8-
<PAGE>


take away any registration right of the Holder of Registrable securities or
reduce the amount of reimbursable costs to the Holder of Registrable Securities
in connection with any registration hereunder without the consent of the Holder.
No delay on the part of any party in the exercise of any right, power or remedy
shall operate as a waiver thereof, nor shall any single or partial exercise by
any party of any right, power or remedy preclude any other or further exercise
thereof, or the exercise of any other right, power or remedy.

     12. Counterparts. One or more counterparts of this Agreement may be signed
by the parties, each of which shall be an original but all of which together
shall constitute one and the same instrument.

     13. Governing Law. This Agreement shall be construed in accordance with and
governed by the internal laws of the State of New York, without giving effect to
conflicts of law principles.

     14. Invalidity of Provisions. If any provision of this Agreement is or
becomes invalid, illegal or unenforceable in any respect, the validity, legality
and enforceability of the remaining provisions contained herein shall not be
affected thereby.

     15. Headings. The headings in this Agreement are for convenience of
reference only and shall not be deemed to alter or affect the meaning or
interpretation of any provisions hereof.

     IN WITNESS WHEREOF, the undersigned have executed this Agreement as of the
date first set forth above.


UNIVEC, INC.
                                                 ____________________________
                                                 Signature of Holder

By: /s/  Joel Schoenfeld
    -----------------------
    Joel Schoenfeld,                             Print Name of Holder
    Chief Executive Officer
                                                 ____________________________

                                                 ____________________________
                                                 Print Address of Holder


                                      -9-


<PAGE>

                              EXHIBIT 10.1



<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 1 of 16

                            O.E.M. SUPPLY AGREEMENT

     THIS  AGREEMENT,  made  effective  this _____ day  of______,  1996,  by and
between  Sherwood Medical  Company,  doing business as  Sherwood-Davis & Geck, a
corporation  organized  and  existing  under the laws of the State of  Delaware,
having an office at 1915 Olive Street,  St. Louis,  Missouri 63103  (hereinafter
referred to as  "Sherwood-D&G")  and Univec,  Inc., a corporation  organized and
existing  under  the laws of the  State of New  York,  having  an  office at 999
Franklin  Avenue,  Garden  City,  New York  11530  (hereinafter  referred  to as
"Customer").

 SECTION 1. DEFINITIONS

     As used in this Agreement,  the following terms shall be deemed to have the
following meanings:

     1(a)  "Contract  Year" shall mean each twelve (12) month period  during the
term of the Agreement beginning with the Commencement Date.

     1(b)  "Products"  shall  mean  hypodermic   syringe  component  sets,  each
consisting  of a  syringe  barrel  with or  without a  permanently  pre-attached
cannula and sheath or a separate hooded needle,  and a plunger tip (a "Component
Set); and single-use syringe plungers ("Plungers"), each as more fully described
in Exhibit A hereto, and as amended from time to time in writing by the parties.

     1(c) "Specifications" shall mean the specifications and protocols set forth
in Exhibit B attached hereto.

     1(d)  "Sufficient   Production   Capacity"  shall  mean  having  sufficient
manufacturing   facilities,   equipment,   staff,  raw  materials  and  shipping
facilities  to  manufacture  and  deliver to  Customer  at least  fifty  million
(50,000,000) Component Sets during each Contract Year.


<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 2 of 16


SECTION 2. PURCHASE AND SALE OF PRODUCTS

     2(a)  In accordance  with  the  terms  and  conditions  of this  Agreement,
Sherwood-D&G  shall manufacture and sell the Products to Customer,  and Customer
shall purchase the Products from Sherwood-D&G.

     2(b)  Sherwood-D&G  shall maintain  Sufficient  Production  Capacity at all
times during the term of this Agreement. Upon receipt of written purchase orders
from Customer using  Customer's  standard form of purchase  Order,  Sherwood-D&G
shall  manufacture  and deliver  Component Sets and Plungers in accordance  with
such written purchase orders, provided, however, notwithstanding anything to the
contrary herein, Sherwood-D&G shall only be obligated to manufacture and deliver
an  average  of  four  million  one  hundred  sixty-six   thousand  six  hundred
sixty-seven  (4,166,667)  Component Sets and the quantity of acceptable Plungers
that it has the capacity and capability to manufacture,  as set forth in Section
2(c) hereof,  each month  against such  purchase  orders during the term of this
Agreement.  Sherwood-D&G  shall  keep  Customer  informed  of its  capacity  and
capability to manufacture  acceptable  Plungers.  Nothing contained herein shall
require  Customer to order any  minimum  quantity of Products at any time during
the term of this Agreement.

     2(c)  Sherwood-D&G  shall exert reasonable  business efforts to manufacture
and deliver to Customer the quantity of acceptable  Plungers ordered by Customer
each month up to an average of eight million three hundred thirty-three thousand
three  hundred  thirty-three  (8,333,333)  Plungers per month.  Beginning on the
Commencement Date, Sherwood-D&G and Customer shall cooperate to develop mutually
acceptable  Specifications  for the Plungers that will allow the greatest  yield
from  Sherwood-D&G's  plunger mold while functioning in a reasonably  acceptable
manner in Customer's  assembly  process  without  sacrificing the quality of the
finished product. Specifically, Sherwood-D&G shall exert its reasonable business
efforts to refine its plunger mold and manufacturing process for the Plungers to
increase its capacity and capability


<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 3 of 16


to  manufacture  acceptable  Plungers  and Customer  shall exert its  reasonable
business efforts to refine its syringe assembly process to accept such Plungers.

     2(d)  Customer  may place its orders on  Customer's  purchase  order forms,
specifying  shipping  instructions  and  destinations.  Any terms and conditions
included in any such purchase  order form of Customer or any  acknowledgment  or
other  form of  Sherwood-D&G  shall be of no force and  effect and shall form no
part of the  agreement  between the parties.  Minimum order  quantities  are ten
million (10,000,000) Component Sets or Plungers. Minimum shipment quantities are
two million (2,000,000)  Component Sets or Plungers.  Sherwood-D&G shall satisfy
all purchase orders promptly after receipt of Customer's  written purchase order
or,  except for the  quantities  of Products set forth in Section 2(b) which may
not be  objected to or  rejected,  shall  object to or reject any such  purchase
order within fifteen (15) days after receipt thereof. Any purchase order for the
Products received by Sherwood-D&G and not objected to or rejected within fifteen
(15) days after receipt shall be deemed accepted by Sherwood-D&G. Delivery shall
be  required  by  Customer  no sooner  than  ninety  (90) days from  receipt  of
Customer's written purchase order.  Customer shall provide Sherwood-D&G with six
(6) month non-binding  forecasts of purchases of the Products sixty (60) days in
advance  of each six (6) month  period  throughout  the term of this  Agreement.
Within thirty (30) days of receipt of such non-binding  forecasts from Customer,
Sherwood-D&G shall notify Customer in writing whether, in its sole judgment,  it
has available  production capacity to supply Customer with more than twenty-five
million  (25,000,000)  Component Sets during the applicable six (6) month period
covered by such forecast.  If Customer desires to purchase from  Sherwood-D&G in
excess of twenty-five  million  (25,000,000)  Component Sets during such six (6)
month  period,  it shall,  within  fifteen (15) days of receipt of the notice of
sufficient  available capacity from Sherwood-D&G,  issue to Sherwood-D&G binding
purchase orders for such additional  Component Sets up to the available capacity
set forth in Sherwood-D&G's  notice. The parties agree that said purchase orders
for such  additional  Component Sets shall be binding on both  Sherwood-D&G  and
Customer for the quantities set


<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 4 of 16


forth therein. All purchase orders and forecasts shall be sent to Sherwood-D&G
in accordance with Section 10 hereof.

SECTION 3. TERM OF AGREEMENT

     3(a) This  Agreement  shall  commence on the  effective  date first written
above (the  "Commencement  Date") and,  unless sooner  terminated or extended in
accordance with the provisions of Sections 3(b) or 6 hereof,  shall continue for
a period of five (5) years (the  "Initial  Term") from the initial  delivery and
acceptance of commercial quantities of Products.

     3(b) In the event  that  Sherwood-D&G  exercises  the  option  set forth in
Section 9 hereof to enter into the Non-Exclusive  License Agreement (U.S.),  the
Initial Term shall continue from the Commencement  Date until the greater of (A)
five  (5)  years or (B) the  sooner  to occur  of (i)  market  introduction  and
commercial  sale  by  Sherwood-D&G  of  Licensed  Product  (as  defined  in  the
Non-Exclusive  License  Agreement (U.S.), or (ii) two and one-half (2-1/2) years
from  execution of the  Non-Exclusive  License  Agreement  (U.S.) by both of the
parties hereto.

SECTION 4. PRICE AND PAYMENT TERMS

     4(a) For all Products  purchased from Sherwood-D&G for delivery to Customer
during the first twelve (12) months of the Initial Term,  Customer  shall pay to
Sherwood-D&G  the  price  for  each of the  Products  set  forth  in  Exhibit  A
(hereinafter  referred to as the "Product Purchase Price"),  FOB  Sherwood-D&G's
manufacturing  facility. All prices are exclusive of sales, use and other taxes.
All  export,  import and other  duties,  tariffs  and  customs  shall be paid by
Customer.  If  exemption  is  claimed  by  Customer  from any of the  foregoing,
Customer shall furnish to Sherwood-D&G satisfactory proof of such exemption. For
the first fifty  million  (50,000,000)  Components  Sets and Plungers ordered by
Customer,  Sherwood-D&G  shall maintain an inventory of a ninety (90) day supply
of such Products (or such lesser amount as may be requested from


<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 5 of 16


time to time by Customer)  until needed by Customer,  with payment  terms of net
sixty (60) days from date of shipment.  Thereafter, payment terms are net thirty
(30) days from date of shipment.

     4(b)  Sherwood-D&G  shall  have the right to revise the prices set forth in
Exhibit  A not more  often  than  once  during  any  twelve  (12)  month  period
commencing  twelve (12) months after the  Commencement  Date, by giving Customer
thirty (30) days  written  advance  notice.  Such  revisions  in price shall not
exceed the  actual  changes in the cost to  Sherwood-D&G  for parts,  materials,
labor and overhead  directly related to the manufacture,  packaging and labeling
of the Products,  utilizing generally accepted accounting principles,  but in no
event will any price  increase  for any Product  exceed five percent (5%) in any
twelve (12) month period.  Customer may, at its option,  request verification of
such  increases  by  independent   certified  public   accountants,   reasonably
acceptable  to  Sherwood-D&G.  In no event shall any such upward price  revision
take into account any amount with respect to any lease payments or  amortization
charges or any  increase in  maintenance,  overhead or any other cost or expense
relating to the plunger mold leased by  Sherwood-D&G  from  Customer to make the
Plunger.

     4(c)  Customer  will be charged  and will pay to  Sherwood-D&G  a surcharge
equal to fourteen and nine hundred twenty-five  thousandths percent (14.925%) of
the invoice  price of Products  ordered and received by Customer up to a maximum
invoiced amount of Six Million Seven Hundred  Thousand  Dollars  ($6,700,000) of
Product  purchases.  Sherwood-D&G  will give  Customer  a  discount  on  Product
Purchase  Prices by a credit  equal to the amount of the  surcharge  on invoiced
amounts up to a maximum  aggregate of Three Million Three Hundred Fifty Thousand
Dollars  ($3,350,000)  of Product  purchases.  No surcharge  shall be applied to
invoiced  amounts in excess of an aggregate  amount of Six Million Seven Hundred
Thousand  Dollars  ($6,700,000)  and no credits  shall be  applied  to  invoiced
amounts in excess of an aggregate  amount of Three  Million  Three Hundred Fifty
Thousand Dollars ($3,350,000). In no event shall


<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 5 of 16


Customer  pay or be  required  to pay more than Five  Hundred  Thousand  Dollars
($500,000) in surcharges net of the above credits.

SECTION 5. WARRANTIES, COVENANTS AND INDEMNIFICATION

     5(a)  Sherwood-D&G  warrants  that it has  title  to all  Products  sold to
Customer  hereunder  free of all liens and  encumbrances  of any kind or nature.
Sherwood-D&G  further  warrants and  guarantees  that at the time of shipment of
Products to Customer pursuant to Customer's  purchase orders, the Products shall
conform to the  Specifications  and shall have been  manufactured  in accordance
with all applicable federal,  state and local laws,  including the Federal Food,
Drug and Cosmetic Act, as amended, and the regulations issued thereunder.

     5(b) The parties  represent  and  warrant  that they have the full right to
enter into this  Agreement  and that this  Agreement  does not conflict with any
other agreements so long as the other terms of this Agreement are met.

     5(c) THE  FOREGOING  WARRANTIES  OF THE  PARTIES  ARE IN LIEU OF ALL  OTHER
WARRANTIES,  EXPRESSED  OR IMPLIED,  INCLUDING,  BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY  AND FITNESS FOR A PARTICULAR  PURPOSE.  Except as
otherwise  provided  herein,  in no event  will  either  party be liable for any
indirect, special, consequential, incidental or contingent damages in connection
with the purchase, use or sale of the Products.  Notwithstanding anything to the
contrary  contained herein,  in the event that Sherwood-D&G  fails to deliver to
Customer Products meeting the Specifications,  on a timely basis, as required by
any Customer purchase orders delivered to and accepted by Sherwood-D&G  pursuant
to this Agreement,  Customer shall be entitled,  in addition to any other remedy
available  to it, to recover the profits  that  Customer  would have made on the
sale of single-use  syringes that would have incorporated such Products had such
Products been delivered.


<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 6 of 16


     5 (d) Upon  notification by Customer to Sherwood-D&G that there has been or
may be a claim  threatened or suit for damages  instituted  against Customer for
personal injury or property damage related to use of the Products, Sherwood-D&G,
its successors and assigns shall defend,  indemnify and save harmless  Customer,
its employees, officers, subsidiaries and affiliated companies, their successors
and  assigns,  against  such claim or suit if based  upon or  arising  out of an
alleged defect in the Product, unless such claim or suit is based upon or arises
out of an alleged  defect (i) in the design of the  Product,  provided  that the
design  of  the  Product  (less  the  Plunger)  is  not  defective  as  used  by
Sherwood-D&G  for its standard line of hypodermic  syringes,  or (ii) created by
the  combination of the Component Sets with the Plunger,  or (iii) caused by the
assembly  process in which the Component  Sets and Plungers are  assembled  into
complete  single-use  syringes;  or is otherwise based upon or arises out of any
negligent or intentional acts or omissions of Customer.  It shall be prima facie
evidence  that a Product is  defective  if it fails to meet the  Specifications.
Sherwood-D&G shall maintain comprehensive General Liability Insurance, including
contractual  and  product  liability,  in amounts not less than  $1,000,000  per
occurrence and $3,000,000  annual aggregate on a date of occurrence basis (not a
date of claim  basis).  Upon  request,  Sherwood-D&G  shall submit a certificate
evidencing such insurance to Customer,, which certificate shall provide that the
insurance  policy  evidenced  thereby  may not be  canceled or reduced in amount
without  thirty (30) days prior  notification  to Customer.  In the event of any
claim or suit arising under this indemnity, prompt notice thereof shall be given
to  Sherwood-D&G,  which shall have the right to conduct and control the defense
in respect thereto, but Customer may have counsel present at its own expense and
shall be entitled to participate in the defense.  Customer shall  cooperate with
Sherwood-D&G  in such defense as requested  by  Sherwood-D&G,  at the expense of
Sherwood-D&G. If Sherwood-D&G shall timely fail or refuse


<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 7 of 16


to assume such defense, Customer may employ counsel with respect thereto and all
reasonable fees and expenses of such counsel shall be paid by Sherwood-D&G.

     5 (e) Upon  notification by Sherwood-D&G to Customer that there has been or
may be a claim threatened or suit for damages  instituted  against  Sherwood-D&G
for personal injury or property damage related to use of the Products, Customer,
its   successors   and  assigns  shall  defend,   indemnify  and  save  harmless
Sherwood-D&G,  its employees,  officers,  subsidiaries and affiliated companies,
their  successors  and  assigns,  against  such  claim or suit if based  upon or
arising out of an alleged defect (i) in the design of the Product, provided that
the  design  of the  Product  (less the  Plunger)  is not  defective  as used by
Sherwood-D&G  for its standard line of hypodermic  syringes,  or (ii) created by
the  combination of the Component Sets with the Plunger,  or (iii) caused by the
assembly  process in which the Component  Sets and Plungers are  assembled  into
complete  single-use  syringes;  or is otherwise based upon or arises out of any
negligent or intentional acts or omissions of Customer.  Customer shall maintain
comprehensive  General Liability  Insurance,  including  contractual and product
liability,  in amounts not less than One  Million  Dollars  ($1,000,000.00)  per
occurrence  and Three  Million  Dollars  ($3,000,000.00)  annual  aggregate on a
date-of-occurrence  basis (not a date of claim basis).  Upon  request,  Customer
shall submit a certificate  evidencing  such  insurance to  Sherwood-D&G,  which
certificate shall provide that the insurance policy evidenced thereby may not be
canceled or reduced in amount  without  thirty (30) days prior  notification  to
Sherwood-D&G.  In the event of any claim or suit arising  under this  indemnity,
prompt notice thereof shall be given to Customer,  which shall have the right to
conduct and control the defense in respect  thereto,  but  Sherwood-D&G may have
counsel  present at its own expense and shall be entitled to  participate in the
defense. Sherwood-D&G shall cooperate with Customer in such defense as requested
by Customer, at the expense of Customer. If Customer shall timely fail or refuse
to assume such



<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 8 of 16


defense, Sherwood-D&G may employ counsel with respect thereto and all reasonable
fees and expenses of such counsel shall be paid by Customer.

     5(f) Customer,  its successors,  assigns and legal  representatives,  shall
forever  defend,  indemnify  and save harmless  Sherwood-D&G,  its employees and
officers,  their successors,  assigns and customers against all damages, claims,
demand, seizures, injunctions,  judgments, third party attorneys' fees and costs
of  any  kind  for  any  actual  or  alleged  infringement,   including  willful
infringement,  of any patent,  registered design,  copyright or other industrial
property  right,  including  rights  arising from  confidential  disclosures  or
relationships, because of the manufacture, use and/or sale of the Plunger or the
combination  by or for Customer of Component  Sets with the Plunger or any other
components or devices, but not with respect to the Component Sets per se. In the
event of any claim or suit arising under this  indemnity,  prompt notice thereof
shall be given to  Customer,  which  shall have the right to conduct and control
the defense in respect thereto, but Sherwood-D&G may have counsel present at its
own expense and shall be entitled to  participate  in the defense.  Sherwood-D&G
shall  cooperate with Customer in such defense as requested by Customer,  at the
expense of Customer.

     5(g) Sherwood-D&G, its successors, assigns and legal representatives, shall
forever  defend,  indemnify  and  save  harmless  Customer,  its  employees  and
officers,  their successors,  assigns and customers against all damages, claims,
demand, seizures, injunctions,  judgments, third party attorneys' fees and costs
of  any  kind  for  any  actual  or  alleged  infringement,   including  willful
infringement,  of any patent,  registered design,  copyright or other industrial
property  right,  including  rights  arising from  confidential  disclosures  or
relationships, because of the manufacture, use and/or sale of the Component Sets
per se,  but not  with  respect  to the  Plunger  or to any  combination  of the
Component Sets with the Plunger or with any other components or devices.  In the
event of any claim or suit arising under this  indemnity,  prompt notice thereof
shall be given


<PAGE>
                                                                         SL-1888
                                                                        05/29/96
                                                                    Page 9 of 16


to  Sherwood-D&G,  which shall have the right to conduct and control the defense
in respect thereto, but Customer may have counsel present at its own expense and
shall be entitled to participate in the defense.  Customer shall  cooperate with
Sherwood-D&G  in such defense as requested  by  Sherwood-D&G,  at the expense of
Sherwood-D&G.

SECTION 6. TERMINATION

     6 (a) Either party may terminate this Agreement by giving written notice to
the other party in the following circumstances:

          (i)  following  thirty  (30) days  notice in the event the other party
               commits any material  breach of any  obligation of this Agreement
               which is not cured within said thirty (30) day period; or

          (ii) immediately  upon  giving  notice  in the  event  a  petition  of
               bankruptcy  is filed against the other party which is not vacated
               or stayed  within  ninety  (90)  days,  or in the event the other
               party makes a general assignment for the benefit of creditors, or
               a receiver is appointed for the other party.

     6 (b)  Termination  of this  Agreement  shall  not  affect  any  rights  or
obligations accrued prior to the effective date of such termination,  including,
but not  limited  to,  Customer's  obligation  to pay for  Products  ordered and
shipped to Customer.  Notwithstanding  the foregoing,  the right to exercise the
option  pursuant to Section 9 hereof  shall be  suspended  immediately  upon the
giving of notice of termination by Customer  pursuant to this Section 6 and such
option shall  terminate and cease to be exercisable on the thirtieth  (30th) day
after the date of such notice unless Sherwood-D&G shall have cured the breach or
other cause for such notice of termination.  The provisions set forth in Section
5 hereof shall survive  termination of this  Agreement.  The rights  provided in
this Paragraph shall be in addition and without prejudice to any other rights

<PAGE>

                                                                         SL-1888
                                                                        05/29/96
                                                                   Page 11 of 16

which the  parties  may have with  respect  to any  breach or  violation  of the
provisions of this Agreement.

     6(c)  Waiver  by  either  party  of a  single  default  or  breach  or of a
succession of defaults or breaches  shall not deprive such party of any right to
terminate this  Agreement  pursuant to the terms hereof upon the occasion of any
subsequent default or breach.

SECTION 7. RETURNS AND CREDITS

     Sherwood-D&G shall furnish Customer with a written certificate for each lot
of  Products  shipped  to  Customer,  stating  that the  Products  in that  lot,
identified by lot number, conform to the Specifications. If the Products are not
of United States origin,  Sherwood-D&G shall attempt, but shall not be required,
to inform Customer of the country or countries of manufacture.  Customer, within
thirty  (30) days of  receipt,  shall have the right to reject any lots or units
which,  by inspection,  fail to meet the  Specifications,  and to receive credit
therefor.   Rejected  lots  of  Products  will  be  shipped  to   Sherwood-D&G's
manufacturing facility with an identified rejection criteria, freight collect.

SECTION 8. FORCE MAJEURE

     If  either  party  is  prevented  from  performing  any of its  obligations
hereunder  (other than the payment of money) for  unforeseeable  and unavoidable
causes beyond its control and without its fault or  negligence,  which wholly or
partially prevent the manufacture,  delivery,  transportation,  receipt, sale or
use of the Products, including but not limited to fire, strike, explosion, flood
or other acts of God, the inability of a vendor to supply approved raw materials
(unless  caused by the  negligence or the  intentional  acts or omissions of the
party  seeking  to avail  itself of this  provision)  or any act or order of any
governmenta1  agency,  such  party  shall not be  liable to the other  party for
breach of this Agreement, provided the party so affected gives prompt notice of



<PAGE>


                                                                         SL-1888
                                                                        05/29/96
                                                                   Page 12 of 16

such cause to the other party and exercises due diligence to remove the cause as
soon as reasonably practical.

SECTION 9. OPTION

     9(a) In  consideration  for the transfer by Sherwood-D&G to Customer of all
of  Sherwood-D&G's  right,  title and interest in and to the production mold for
the Plunger,  including  the mold inserts and the mold base, as evidenced by the
Bill of Sale attached  hereto as Exhibit D, Customer  grants to  Sherwood-D&G an
option,  exercisable  (subject to Section  6(c) hereof) at any time prior to the
sooner to occur of termination  of this Agreement or three and one-half  (3-1/2)
years  from  the  Commencement  Date  (hereinafter  referred  to as the  "Option
Period"),  to enter into the  Non-Exclusive  License  Agreement  (U.S.) attached
hereto as Exhibit C. Subject to Section 6(c) hereof,  Sherwood-D&G  may exercise
its option to enter into the Non-Exclusive  License Agreement (U.S.) at any time
during  the  Option  Period  by  executing  a copy of same and  returning  it to
Customer  together with the applicable  license fee in accordance with Section 3
of the  Non-Exclusive  License  Agreement  (U.S.).  Upon  receipt  of the signed
Non-Exclusive  License  Agreement  (U.S.) and payment in full of the  applicable
license fee,  Customer will execute the  Non-Exclusive  License Agreement (U.S.)
and return a fully executed copy to Sherwood-D&G.

     9(b) If,  during  the  period  beginning  eighteen  (18)  months  after the
Commencement  Date and  ending on  expiration  of the  Option  Period,  Customer
receives a bona fide written offer from an unrelated  third party to exclusively
license the  Licensed  Patent  Rights (as defined in the  Non-Exclusive  License
Agreement  (U.S.)),  Customer shall notify  Sherwood-D&G  of the receipt of said
offer by  providing a true copy  thereof to  Sherwood-D&G.  Upon receipt of said
written offer,  Sherwood-D&G shall,  within thirty (30) days of receipt,  notify
Customer of its intent either:

     (i)  to  exercise  the  option  to  enter  into the  Non-Exclusive  License
          Agreement (U.S.) pursuant to Section 9(a) hereof; or 


<PAGE>


                                                                         SL-1888
                                                                        05/29/96
                                                                   Page 13 of 16

     (ii) to enter into an exclusive  license with Customer on the same terms as
          set  forth in the offer  (but  including  the  Movern  Patents  if not
          included in the bona fide offer); or

    (iii) to  terminate  its option  rights  hereunder in  consideration  of the
          payment by  Customer  to  Sherwood-D&G  of the  greater of One Hundred
          Thousand Dollars  ($100,000.00) or the balance of the surcharge amount
          payable  under  Section  4(c) hereof as of the date of  Sherwood-D&G's
          notice to Customer hereunder.

If  Sherwood-D&G  elects  Section  9(b)(i),  it shall execute the  Non-Exclusive
License  Agreement (U.S.) and return it to Customer with the applicable  license
fee in the manner set forth in Section  9(a);  if  Sherwood-D&G  elects  Section
9(b)(ii),  the parties shall,  as soon as practicable  and in any event prior to
the  expiration  of the bona fide  offer,  negotiate  and  execute an  exclusive
license agreement on the same terms as set forth in the third-party offer; or if
Sherwood-D&G elects Section 9(b)(iii), the parties shall agree on the balance of
the surcharge amount payable under Section 4(c) hereof and that amount,  but not
less  than  One  Hundred  Thousand  Dollars  ($100,000.00),  shall  be  paid  to
Sherwood-D&G within ten (10) days of Sherwood-D&G's  election, and the option of
Section 9 shall terminate and be of no further force and effect.

SECTION 10. DISTRIBUTION AGREEMENT

     Sherwood-D&G  and Customer  agree to negotiate in good faith the terms of a
non-exclusive distribution  agreement to become  effective after the exercise of
the option and immediately  upon  Sherwood-D&G's  introduction to the market and
commercial  sale  of  a  single-use  syringe  under  the  Non-Exclusive  License
Agreement (U.S.). The parties shall commence negotiations regarding the terms of
the distribution agreement immediately upon execution of this



<PAGE>


                                                                         SL-1888
                                                                        05/29/96
                                                                   Page 14 of 16

Agreement  and shall  diligently  and in good faith  negotiate  such terms in an
effort to reach agreement with respect thereto within thirty (30) days after the
date hereof.

SECTION 11. NOTICES

     All notices specified in this Agreement shall be given in writing and shall
be effective when either served by personal delivery or facsimile  transmission,
or on the day  following  timely  delivery for  next-day  delivery to a national
overnight courier service guaranteeing next-day delivery, or five (5) days after
being addressed to the other party at the address  specified below and deposited
first class mail. Unless otherwise specified in accordance with the provision of
this Section, the addresses of the parties shall be:

               Univec, Inc.
               999 Franklin Avenue
               Garden City, New York 11530
               Attention: Joel Schoenfeld
               Facsimile No. 516/739-3343
and
               Sherwood Medical Company
               1915 Olive Street
               St. Louis, Missouri 63103
               Attention: Vice President, OEM Sales
               Facsimile No. 314/241-0232

SECTION 12. MISCELLANEOUS PROVISIONS

     12(a) This document  constitutes the entire Agreement  between the parties,
there being no warranties,  representations  or conditions of any kind or nature
between  the  parties  except as set forth  herein.  This  Agreement  may not be
changed  or  modified  except by an  instrument  in writing  duly  signed by the
parties hereto.  The December 22, 1994 OEM Supply Agreement  between the parties
is hereby  expressly  terminated  and  canceled,  together  with all  rights and
obligations  of the parties  with respect  thereto.  The parties  hereto,  their
respective employees, officers, directors, subsidiaries, successors and assigns,
hereby waive, release and discharge


<PAGE>


                                                                         SL-1888
                                                                        05/29/96
                                                                   Page 15 of 16

each other, and any of their past,  present or future  shareholders,  employees,
officers, directors, parents,  subsidiaries,  affiliates,  successors,  assigns,
agents or  representatives,  from any and all claims,  liabilities,  damages and
demands whatsoever,  in law or in equity,  known or unknown,  arising out of the
December 22, 1994 OEM Supply Agreement,  all modifications thereto, or any other
prior  agreement  between  the  parties,  oral or  written,  express or implied,
relating to the supply by  Sherwood-D&G to Customer of the Products or any other
products.  This  Agreement  supersedes all prior  agreements  and  arrangements,
written or oral,  between the parties  hereto with respect to the subject matter
hereof.

     12(b) This  Agreement  may not be  assigned  by either  party  without  the
written  consent of the other except to a subsidiary or in the case of a sale or
transfer of all or  substantially  all of its  business  by way of  acquisition,
consolidation or merger.  Notwithstanding the foregoing, this Agreement shall be
binding upon the respective successors and assigns of either party hereto.

     12(c) The laws of the State of New York,  without  regard to  principles of
conflicts of laws shall govern the  interpretation  and all disputes arising out
of this Agreement.

     12(d)  Nothing  contained in this  Agreement  shall permit  either party to
incur  any  debts  or  liabilities  on  behalf  of the  other  party  except  as
specifically provided in this Agreement.  The parties are and will remain at all
times independent  contractors,  and no agency or employment relationship exists
between them.

     12(e) The headings and captions contained herein are for reference only and
shall not constitute a substantive part of this Agreement.

     12(f)  If  any  part  of  this  Agreement  is  rendered  void,  invalid  or
unenforceable  by a court of  competent  jurisdiction  after the  expiration  or
waiver  of all  rights  to  appeal,  such  shall  not  affect  the  validity  or
enforceability of any other provisions of this Agreement except those where the



<PAGE>


                                                                         SL-1888
                                                                        05/29/96
                                                                   Page 16 of 16

invalid  or  unenforceable  provisions  comprise  an  integral  part  of or  are
otherwise clearly inseparable from the intent and purpose of this Agreement.  In
the event any  provision  is held  invalid or  unenforceable,  the parties  will
attempt  to  agree  upon a valid  and  enforceable  provision  which  shall be a
reasonable  substitute for such invalid or  unenforceable  provision in light of
the intent of this  Agreement  and,  upon so agreeing,  shall  incorporate  such
substitute provision in this Agreement.

     12(g) The parties agree that the prevailing  party in any litigation  under
this  Agreement  shall be  entitled  to recover,  as part of its  judgment,  its
reasonable attorneys' fees and any related costs and expenses.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed in duplicate originals by their duly authorized representatives.

CUSTOMER: UNIVEC, INC.                           SHERWOOD MEDICAL COMPANY
                                                 d/b/a SHERWOOD - DAVIS & GECK

 By: /s/ Joel Schoenfeld                         By: /s/ Peter DiGasbarro
    --------------------------------                ---------------------------
          (Signture)                                     (Signature)

          Joel Schoenfeld                                Peter DiGasbarro
    --------------------------------                ---------------------------
          (Print Name)                                   (Print Name)

Title: C.E.O                                        Sr VP Marketing
      ------------------------------                ---------------------------

Date: 6/7/96                                                5/31/96
      ------------------------------                ---------------------------

H:\NANCY\AGMT\UNIVEC.CLN

<PAGE>


                                                                         SL-1888
                                                                         5/29/96

                                    EXHIBIT A
                              PRODUCTS AND PRICING
<TABLE>
<CAPTION>

- ---------------------------------------------------------------------------------------
                                                                           Product
 Products***                                                           Purchase Price*
- ---------------------------------------------------------------------------------------
<S>                                                                      <C>
5551-791600  1cc barrel, private label with preattached 27ga x 1/2"      
cannula and sheath, non-sterile, bulk packed                                  #
- ---------------------------------------------------------------------------------------
5551-761025 or 5551-500019 1cc plunger tip, non-sterile, bulk packed      
(with or without silicone)                                                    #
- ---------------------------------------------------------------------------------------
1cc Tuberculin, Luer Slip, barrel only, private labor, non-sterile,      
bulk packed
                                                                              #
Hooded needle, 20-27ga x 1/2"-1", non-sterile, bulk packed               
- ---------------------------------------------------------------------------------------
Univec design single-use Plungers, non-sterile, bulk packed                   #
- ---------------------------------------------------------------------------------------
</TABLE>

*    A one-time die cost of $1,500.00  will be paid by Customer for each private
     label barrel.

**   1" cannula and other gauges and cannula  lengths will be made  available to
     Customer  when  Sherwood-D&G  has  production  capacity and  capability  to
     manufacture. Sherwood-D&G currently has the capacity to also manufacture 28
     and 29 gauge by 1/2" cannula. (Product Purchase Price may vary.)

***  1cc sliding sleeve safety syringe barrel, private label, non-sterile,  bulk
     packed, may be added as a Product provided that Sherwood-D&G has production
     capacity and capability to manufacture and the parties agree on the Product
     Purchase Price therefor.




- ---------
# Confidential treatment has been sought by the Company for the omitted
  portions and such material has been filed separately with the Commission.




<PAGE>



                                                                         SL-1888
                                                                         5/29/96

                                   EXHIBIT B

                                 SPECIFICATIONS

Barrels, Hooded Needles and Plunger Tip - See attached.

Plunger - To be mutually agreed upon by the parties and attached hereto.

<PAGE>



                   SCHEMATIC FOR EPOXY 1 CC TUBERCULIN SYRINGE*
















- ---------
* Confidential treatment has been sought by the Company for the omitted 
  portions and such material has been filed separately with the Commission.

                                       
<PAGE>



                     SCHEMATIC FOR EPOXY 1 CC INSULIN SYRINGE*














- ---------
* Confidential treatment has been sought by the Company for the omitted 
  portions and such material has been filed separately with the Commission.



<PAGE>

                                                                       EXHIBIT B

QUALITY  ASSURANCE                 CLASSIFICATION                 CD 1003
SHERWOOD MEDICAL                  OF DEFECTS MANUAL               REV O
NORFOLK NEBRASKA                   COMPONENTS                     DATE O5/23/96

- --------------------------------------------------------------------------------
DOCUMENT COORDINATOR                 Q. A. MANAGER                    EFFECTIVE
                                                                      DATE

- --------------------------------------------------------------------------------

     TITLE: UNIVEC EPOXY SYRINGE SUBASSEMBLY (B/C/S)

I.   VISUAL EVALUATION
     ------------------
     Zero magnification unless otherwise specified

     CL-1 Defects 0.065% A.Q.L.
     --------------------------
     1.   Split or hole in sheath which may allow loss of sterility

     CL-2 Defects 0.250% A.Q.L.
     --------------------------

     1.   Water in assembled unit
     2.   Blood on syringe assembly
     3.   Missing point
     4.   Needle piercing sheath
     5.   Damaged or hook on point
     6.   Graduation printing error which will cause a volume error in excess of
          +/-.02ml or +/-2 units (insulin only)

     CL-3 Defects 0.400% A.Q.L.
     --------------------------

     1.   Incomplete or incorrect assembly
     2.   Damaged product components (non-functional)
     3.   Flash which renders unit unserviceable
     4.   Graduation printing
          a.   Printing not legible
          b.   High or low graduation lines which cause volume to be out of
               specification
          c.   Complete lack of printing of numbers; i.e. 1, 2, etc.
          d.   Non-printing of two or more graduations
     5.   Hole, split or crack in barrel which permits leakage
     6.   Impossible to remove sheath from syringe barrel
     7.   Epoxy flake on free length (attached)
     8.   Split cannula
     9.   Bent cannula
     10.  Primary grind only
     11.  Burr on lancet point
     12.  Mixed needle lengths or gage
     13.  Corrosion on cannula
     14.  Any defect visually obnoxious; i.e. hair, insect, etc.
     15.  Foreign material in fluid pathway
     16.  Missing, incorrect or illegible lot number of product identification -
          packaging material

     CL-4 Defects 1.500% A.Q.L.
     --------------------------

     1.   Foreign material on outside of syringe
     2.   Damage components (functional but less than desired)
     3.   Fingernail flash exceeds 1/32" or parting line flash exceeding 1/16"
          total
     4.   Non-printing of one graduation
     5.   Epoxy spillover on cannula not to exceed 1/16"
     6.   Printing smeared but legible
     7.   Globs (hardened lubricant) on cannula
     8.   Light burr on lancet point

                                       1
                                 UNAPPROVED COPY


<PAGE>


                                                                       EXHIBIT B

QUALITY  ASSURANCE                 CLASSIFICATION                 CD 1003
SHERWOOD MEDICAL                  OF DEFECTS MANUAL               REV O
NORFOLK NEBRASKA                   COMPONENTS                     DATE O5/23/96

     CL-5 Defects 6.500% A.Q.L.
     --------------------------

     1.   Poor workmanship
     2.   Excessive lubricant, droplets or pools visible through the barrel
     3.   Inclusions in parts
     4.   Fractures exceeding 5/8" in length (sheath only)
     5.   Incomplete epoxy fill in barrel (recessed below flush)
     6.   Excessive epoxy that migrates over half the distance of the rib

II.  PHYSICAL EVALUATION
     -------------------
     CL-1 Defects 6.500% A.Q.L.
     --------------------------

     1.   Pull test of cannula below three (3) pounds

     CL-2 Defects 0.250% A.Q.L.
     --------------------------

     1.   None defined

     CL-3 Defects 0.400% A.Q.L.
     --------------------------

     1.   Leakage in fluid pathway
     2.   Clogged or partially clogged needle
     3.   Cleanliness of neddle: O.D. of cannula
     4.   Pull test of cannula below five {5) pounds
     5.   No lubricant on cannula

     CL-4 Defects 0.500% A.Q.L.
     --------------------------

     1.   Pull test of sheath from barrel exceeds (7) seven pounds
     2.   Cannula does not meet straightness specification
     3.   Constriction
     4.   Partial lubricant on cannula

     CL-5 Defects 6.500% A.Q.L.
     ---------------------------

     1.   Long or short cannula free length

                                END OF PROCEDURE

                                 UNAPPROVED COPY

                                        2


<PAGE>

                                                                       EXHIBIT B

[SCHEMATIC OF BARREL-LUER SLIP]

<PAGE>

                                                                       EXHIBIT B

QUALITY  ASSURANCE                 CLASSIFICATION                 CD 1005
SHERWOOD MEDICAL                  OF DEFECTS MANUAL               REV O
NORFOLK NEBRASKA                   COMPONENTS                     DATE O5/23/96


DOCUMENT COORDINATOR                 Q A MANAGER                      EFFECTIVE
                                                                      DATE

     TITLE: UNIVEC REGULAR LUER TIP PRINTED BARREL

I.   VISUAL EVALUATION
     ------------------
     (Zero Magnification Unless Otherwise Specified)

     CL-1 Defects 0.065% A.Q.L
     --------------------------
     1.   None Defined

     CL-2 Defects 0.250% A.Q.L.
     --------------------------

     l.   Water in units
     2.   Blood in units

     CL-3 Defects 0.400% A.Q.L.
     --------------------------

     1.   Incomplete or incorrect assembly
     2.   Damaged product components (non-functional)
     3.   Flash which renders unit unserviceable.
     4.   Graduation printing
          4.1  Printing not legible
          4.2  High or low graduation lines which cause volume to be out of
               specification
          4.3  Complete lack of printing of numbers; i.e. 1, 2, etc.
          4.4. Non-printing of two or more graduations
     5.   Hole, split or crack in barrel which permits leakage
     6.   Any defect visually obnoxious; i.e. hair, insect, etc. Foreign
          material in fluid pathway
     7.   Missing, incorrect or illegible lot number or product identification -
          packaging material


     CL-4 Defects 1.500% A.Q.L.
     --------------------------

     1.   Foreign material on outside of barrel
     2.   Damaged component (functional but less than desired)
     3.   Fingernail flash exceeds 1/32" or parting line flash exceeding 1/16"
          total
     4.   Absence of top line or one whole graduation line
     5.   Printing clarity or numerals and lettering and graduations must be
          visible and legible at 18". Questionable unreadable printing will be
          judged with a plunger rod inside the barrel
     6.   Crazing visible at 18"
     7.   The printing of the unit of measurement must be in  full evidence (ml,
          cc, oz, etc.)

     CL-5 Defects 6.500% A.Q.L.
     --------------------------

     1.   Poor workmanship
     2.   Printing not in line with flat of flange
     3.   Printing smeared but legible

                                UNAPPROVED COPY


                                       1

<PAGE>


                                                                       EXHIBIT B

QUALITY  ASSURANCE                 CLASSIFICATION                 CD 1005
SHERWOOD MEDICAL                  OF DEFECTS MANUAL               REV O
NORFOLK NEBRASKA                   COMPONENTS                     DATE O5/23/96

II.  PHYSICAL EVALUATION
     -------------------
     CL-1 Defects 0.065% A.Q.L.
     --------------------------

     1.   None Defined

     CL-2 Defects 0.250% A.Q.L.
     --------------------------

     1.   None Defined

     CL-3 Defects 0.400% A.Q.L.
     --------------------------

     1.   Printing on syringe barrel does not pass the ink permanency test
     2.   Syringe printing volume check exceeds the +/- 1.5% of syringe volume
          plus 2.0% expelled volume at each major graduation (audit)
     3.   Failed leak test ( standard luer taper)

     CL-4 Defects 1.500% A.Q.L.
     --------------------------

     1.   None defined

     CL-5 Defects 6.500% A.Q.L.
     ---------------------------

     1.   None defined

                                END OF PROCEDURE

                                 UNAPPROVED COPY

                                        2



<PAGE>


                                                                       EXHIBIT B


                         [SCHEMATIC OF LCC PLUNGER TIP]






<PAGE>

                                                                       EXHIBIT B


QUALITY ASSURANCE                     CLASSIFICATION           CD  1004
SHERWOOD MEDICAL                     OF DEFECTS MANUAL         REV  0
NORFOLK NEBRASKA                        COMPONENTS             DATE  05/23/96


                                 UNAPPROVED COPY

- --------------------------------------------------------------------------------
 DOCUMENT COORDINATOR              Q.A. MANAGER                  EFFECTIVE
                                                                 DATE

- --------------------------------------------------------------------------------

     TITLE: UNIVEC SYRINGE RUBBER PLUNGER TIP

I.   VISUAL EVALUATION
     -----------------
     Zero magnification unless otherwise specified

     CL-1 Defects 0.065% A.Q.L.
     -------------------------
     1.   None defined

     CL-2 Defects 0.250% A.Q.L.
     -------------------------
     1.   None defined

     CL-3 Defects 0.400% A.Q.L.
     -------------------------
     1.   Cleanliness - foreign matter or particles, grease, etc.
     2.   Malforms, voids and no fills (applicable to face and first ring)
     3.   Splits and pin holes
     4.   Trim in excess of ring O.D.
     5.   Water on units
     6.   Any defect visibly obnoxious; i.e. hair, insects, etc.
     7.   Concentricity

     CL-4 Defects 1.500% A.Q.L.
     -------------------------
     1.   Missing, incorrect or illegible lot number or product
          identification - packaging material

     CL-5 Defects 6.500% A.Q.L.
     -------------------------
     1. Poor workmanship
     2. Inclusions

II.  PHYSICAL EVALUATION
     -------------------

     CL-1 Defects 0.065% A.Q.L.
     -------------------------
     1.   None defined

     CL-2 Defects 0.250% A.Q.L.
     -------------------------
     1.   None defined

     CL-3 Defects 0.400% A.Q.L.
     -------------------------
     1.   Leakage of water beyond the first ring during leak test. Test 
          conducted when visual examination is not conclusive  
     2.   Concentricity exceeds .020 T.I.R. (dimensional check to be
          conducted when visual examination is not conclusive)
          

     CL-4 Defects 1.500% A.Q.L.
     -------------------------
     1.   None defined

     CL-5 Defects 6.500% A.Q.L.
     -------------------------
     1.   None defined


                                END OF PROCEDURE


<PAGE>
                                                                       EXHIBIT B



                       [SCHEMATIC OF M500E HOODED NEEDLE]





<PAGE>
                                                                       EXHIBIT B

                          |----------------------------------------------------
[LOGO] SHERWOOD MEDICAL   |TITLE                           |SPEC. NO.    | REV.
       CLASSIFICATIONS OF |                                |CD-2114      | B
           DEFECTS        |CLASSIFICATIONS OF DEFECTS      |SHEET 1 of 3 |
                          |   EPOXY HOODED NEEDLES         |--------------------
                          |                                |ISSUE          
                          |                                |DATE     9/19/88
- -------------------------------------------------------------------------------
Compiled by:       |                    APPROVALS AND DATE
DeLand Mfg.        |-----------------------------------------------------------
7-22-88            | 7-27-88     |  8-16-88     | 8-24-88     |         |
                   |             |              |             |         |
J. Hansen          | [illegible] |  [illegible] | [illegible] |         |
- -------------------------------------------------------------------------------


I.   VISUAL EVALUATION (ZERO MAGNIFICATION UNLESS OTHERWISE SPECIFIED)
     -----------------------------------------------------------------

     CL-1 DEFECTS. 0.065% A.Q.L.
     ---------------------------
     1.   Split or hole in sheath which may allow loss of sterility


     CL-2 DEFECTS:  0.25% A.Q.L.
     ---------------------------
     1. Blood on needle assembly
     2. Needle piercing sheath
     3. Missing point
     4. Hook or severe point damage
     5. Reversed cannula
     6. No visible epoxy


     CL-3 DEFECTS:  0.4% A.Q.L.
     --------------------------
     1.   Incorrect or incomplete assembly
     2.   Damaged product components (non-functional)
     3.   Split cannula
     4.   Mixed cannula
     5.   Bent cannula
     6.   Corrosion on cannula
     7.   Any defect visibly obnoxious i.e., hair, insect, etc.
     8.   Slivers, loosely attached metallic material or debris in cannula bevel
          or inside hub
     9.   Preliminary grind only
     10.  Burr on lancet point
     11   Incomplete or geometrically unacceptable grind
     12.  Hee1 of bevel improperly dulled


     CL 4 DEFECTS:  1.5% A.Q.L.
     --------------------------
     1.   Foreign material on outside of hub or cannula
     2.   Damaged components (functional but less than desired)
     3.   Light burr on lancet point
     4.   Globs (hardened lubricant)
     5.   Mixed bevels
     6.   Attached epoxy splatter or solid above 3/32" on cannula free length
          (1" free length or less)


                             RELEASE FOR PRODUCTION
                  THIS PRINT INCORPORATES THE LATEST APPROVED
               SPECIFICATIONS AND SUPERSEDES ALL PREVIOUS ISSUES


NOTICE: SHERWOOD CONFIDENTIAL

<PAGE>


                                                                       EXHIBIT B
                          |---------------------------------------------------- 
[LOGO] SHERWOOD MEDICAL   |TITLE                           |SPEC. NO.    | REV. 
       CLASSIFICATIONS OF |                                |CD-2114      | B    
           DEFECTS        |CLASSIFICATION OF DEFECTS       |SHEET 3 of 3 |      
                          |   EPOXY HOODED NEEDLES         |--------------------
                          |                                |ISSUE               
                          |                                |DATE     9/19/88    
- ------------------------------------------------------------------------------- 
REVISION  |     RELEASE NO. |         DESCRIPTION                |   APPROVALS
- ----------|-----------------|------------------------------------|------------- 
          |                 |                                    |              
    -     |  DR-4331        |RELEASED TO PRODUCTION              | G.E.  9-19-88
          |                 |                                    |
    A     |  DR-4742        |DELETED III. BIOLOGICAL EVALUATION  | G.E.  3-23-91
          |                 |                                    |
    B     |  DR-4840        |UNIVERSAL VISUAL EVALUATION         | [ILLEGIBLE]  
          |                 |1.CL 4 ITEM 6 WAS:EPOXY SPLATTER OR |  8-20-91
          |                 |  SOLID ABOVE  3/32" ON CANNULA FREE|
          |                 |  LENGTH (ATTACHED)                 |
          |                 |2.ADDED CL 5 ITEM 6                 | 
          |                 |                                    |
          |                 |                                    |
          |                 |          PRELIMINARY               |
- --------------------------------------------------------------------------------
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      USED ON                  USED ON                  USED ON
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

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<PAGE>

                                                                       EXHIBIT B

                          |---------------------------------------------------- 
[LOGO] SHERWOOD MEDICAL   |TITLE                           |SPEC. NO.    | REV. 
       CLASSIFICATIONS OF |                                |CD-2114      | B    
           DEFECTS        |CLASSIFICATION OF DEFECTS       |SHEET 2 of 3 |      
                          |   EPOXY HOODED NEEDLES         |--------------------
                          |                                |ISSUE               
                          |                                |DATE     9/19/88    
- ------------------------------------------------------------------------------- 

     CL-5 DEFECTS: 6.5% A.Q.L.
     ------------

     1.   Poor workmanship
     2.   Fractures in sheath exceeding 5/8" in length
     3.   Inclusions in plastic parts
     4.   Foreign material on outside of sheath
     5.   Excessive epoxy on outside of hub
     6.   Attached epoxy splatter or solid above 3/32" on cannula free length
          (1 1/4 free length or longer)

II.  PHYSICAL EVALUATION
     ---------------------     


     CL-1 DEFECTS: 0.065% A.Q.L.
     -------------

     1.   Pull test of cannula to hub below three (3) pounds

     CL-2 DEFECTS: 0.25% A.Q.L.
     -------------

     NONE 

     CL-3 DEFECTS: 0.4% A.Q.L.
     -------------

     1.   Clogged or partially clogged needle
     2.   Pull test of cannula below specification (over three (3) pounds)
     3.   Cleanliness of needle: OD of cannula
     4.   Leakage at cannula junction or luer taper
     5.   No lubricant on cannula

     CL-4 DEFECTS: 1.5% A.Q.L.
     -------------

     1.   Cannula does not meet straightness specification
     2.   Partial lubricant on cannula
     3.   Tight sheath to hub fit

     CL-5 DEFECTS: 6.5% A.Q.L.
     -------------

     1.   Long or short cannula free length

APPLICATION SPECIFICATIONS
- --------------------------

The following documents form a part of this specification:

     CD 2001 - Definitions of Monoject Quality Requirements.

                                  PRELIMINARY

<PAGE>


                                    EXHIBIT D

                                  BILL OF SALE

     THIS BILL OF SALE is made, executed and delivered as of ____________, 1996,
by Sherwood  Medical  Company,  doing  business  as  Sherwood - Davis & Geck,  a
Delaware  corporation ("Sherwood-D&G"), to Univec,  Inc., a New York corporation
("Customer").  Unless otherwise  defined herein,  capitalized terms used in this
Bill of Sale shall have the meanings  given to them in the OEM Supply  Agreement
(the  "Agreement"), dated  as of  the  date  hereof,  between  Sherwood-D&G  and
Customer.

     Sherwood-D&G hereby conveys, grants, bargains, sells, transfers, sets over,
assigns,  delivers  and  confirms  unto  Customer,  its  successors  and assigns
forever,  the 128 cavity plunger mold,  including the mold base and the inserts,
Sherwood-D&G  Asset No.  1713 (the  "Mold"),  used by  Sherwood-D&G  to mold the
Plungers,  as described  in the  Agreement.  TO HAVE AND TO HOLD the Mold,  unto
Customer, its successors and assigns, to its and their own use forever.

     Sherwood-D&G  further  covenants  and agrees  that it will do,  execute and
deliver,  or will cause to be done,  executed  and  delivered,  all such further
acts, transfers, assignments and conveyances, confirmations, powers of attorney,
assurances  and  consents,  conveying  and  confirming  unto Customer of all the
rights,  title and  interests of  Sherwood-D&G  in and to the Mold,  as Customer
shall reasonably require.

     Sherwood-D&G does hereby bind itself, its successors,  heirs and assigns to
forever  warrant  and defend  transfer to title to the Mold unto  Customer,  its
successors  and  assigns,  against  any person  claiming  the same,  or any part
thereof.


                                       1
<PAGE>


     IN  WITNESS  WHEREOF,  Sherwood-D&G  has  caused  this  Bill  of Sale to be
executed as of the day and year first above written.

                                             SHERWOOD MEDICAL COMPANY,
                                             D/B/A SHERWOOD - DAVIS & GECK

                                             By:___________________________

                                             Title:________________________

 STATE OF MISSOURI          )
                            )   ss.
 COUNTY OF ST. LOUIS        )



     On this  ________day  of_______,  1996,  before me, the undersigned  notary
public, personally appeared ___________, known to me to be the person whose name
is subscribed to the within  instrument  and  acknowledged  that he executed the
same for the purposes therein contained.

     In witness whereof, I hereunto set my hand and official seal.

                                

                                         ----------------------------
                                              Notary Public .


                                       2
<PAGE>


                                    EXHIBIT C

                     NON-EXCLUSIVE LICENSE AGREEMENT (U.S.)

     THIS  AGREEMENT,  made effective as of the ____ day of_______  199_, by and
between SHERWOOD MEDICAL COMPANY,  a corporation  incorporated under the laws of
the State of  Delaware  of the  United  States of  America,  doing  business  as
Sherwood-Davis & Geck and having its principal offices at 1915 Olive Street, St.
Louis, Missouri 63103 (hereinafter referred to as "Sherwood"), and UNIVEC, INC.,
a  corporation  incorporated  under the laws of the  State of New  York,  having
offices  at 999  Franklin  Avenue,  Garden  City,  New York  11530  (hereinafter
referred to as "Licensor");

                                  WITNESSETH:

     WHEREAS,  Licensor  owns  an  invention  relating  to  single-use  syringes
(hereinafter defined and referred to as "Licensed Invention") which is disclosed
in an Application  for United States Letters Patent  identified as Serial Number
08/237,749 filed on April 25, 1994,  entitled "Single Use Syringe"  (hereinafter
further   identified,   defined  and  referred  to  as  the   "Licensed   Patent
Application"); and

     WHEREAS,  Licensor  has  entered  into  a  License  Agreement  (hereinafter
referred to as the "Movern  License")  effective June 17, 1994 between  Licensor
and Verna Movern  whereby  Licensor is granted  exclusive  rights under  certain
United  States  patents  (hereinafter  referred  to  as  the  "Movern  Patents")
including  the right in Licensor to grant  non-exclusive  sublicenses  under the
Movern Patents; and

     WHEREAS, Sherwood is desirous of securing, and Licensor is willing to grant
to Sherwood, a non-exclusive  license to make, have made for it, use and/or sell
in the hereinafter defined Licensed Territory, the Licensed Invention under said
Licensed Patent Application and/or utilizing any know-how heretofor developed by
Licensor relating to the Licensed  Invention,  all upon the terms and conditions
hereinafter provided.

     NOW, THEREFORE,  in consideration of the mutual covenants contained herein,
Sherwood and Licensor agree as follows:


<PAGE>


SECTION 1. DEFINITIONS

     As used in this Agreement,  the following terms shall be deemed to have the
following meanings:

     1  (a)  "Licensed  Invention"  shall  mean  the  invention  claimed  and/or
disclosed in the Licensed Patent Application, as herein defined.

     1 (b) "Licensed Patent  Application"  shall mean the application for United
States Letters Patent,  Serial Number 08/232,749 filed on April 25, 1994 by Joel
Schoenfeld and David Shonfeld entitled "Single Use Syringe".

     1  (c)  "Licensed  Patent  Rights"  shall  mean  (i)  the  Licensed  Patent
Application,  (ii) any other  patent  applications  filed by the Licensor on the
Licensed   Invention  in  the   Licensed   Territory,   (iii)  any   divisional,
continuation,  continuation-in-part,  or substitute patent applications filed by
the Licensor on the  Licensed  Invention  in the  Licensed  Territory,  (iv) any
patents that shall issue on any of the above-described patent applications,  (v)
any reissues,  reexaminations  and extensions of the above,  and (vi) any patent
application  or patent  filed  and/or  issued in the  Licensed  Territory on any
invention which embraces the Licensed Invention and which is owned or controlled
by Licensor  before or during the term of this Agreement or which is licensed to
the  Licensor  during  the term of this  Agreement  with a right  to  sublicense
(excluding the Movern Patents).

     1 (d) "Licensed Product", singular or plural, shall mean:

     (i)  any product made and/or sold in the Licensed  Territory and claimed in
          any pending claim in any pending  patent  application  of the Licensed
          Patent  Rights in the  Licensed  Territory,  or  claimed in any valid,
          enforceable  claim in any  unexpired  patent  of the  Licensed  Patent
          Rights in the Licensed Territory, or

     (ii) any product made and sold, or sold and used, in the Licensed Territory
          employing,  or intended to be utilized employing,  a process or method
          claimed in any pending claim in any pending patent  application of the
          Licensed  Patent Rights in the Licensed  Territory,  or claimed in any
          valid,  enforceable  claim in any  unexpired  patent  of the  Licensed
          Patent Rights in the Licensed Territory.

     1 (e) "Net Sales" shall mean the total or gross billings for sales or other
transfers of Licensed Products by Sherwood,  any sublicensees and/or any Related
Companies, as hereinafter defined, in any arm's-length transactions to unrelated
third-party distributors,  retailers or end users, less the following deductions
where  factually  applicable:  (i) discounts and rebates  allowed and taken,  in
amounts  customary to the trade;  (ii)  outbound  transportation  and  insurance
charges  separately  billed to the customer or prepaid;  (iii) special  outbound
packing separately billed to the customer or prepaid;  (iv) sales,  excise, use,
turnover, inventory, value-added and similar taxes 


                                       2
<PAGE>


and/or duties imposed upon and with specific  reference to the particular  sales
of Licensed  Products,  but not  including  net income tax; (v) free samples and
replacements in amounts  refunded or credited upon purchase price on returned or
defective  Licensed  Products;  and (vi)  the  purchase  price  of any  Licensed
Products or  components  of Licensed  Products  purchased  from  Licensor or any
source  designated  by Licensor.  Sales shall be accounted for when invoiced and
credits  and  refunds  shall be  accounted  for when  allowed. 

     1 (f)  "Licensed  Know-how"  shall  mean  any  and  all  data,  technology,
drawings,  documentation,  and other  proprietary and  confidential  information
owned,  acquired or developed  by or for  Licensor  before or during the term of
this  Agreement  that  relate  to the  Licensed  Invention,  the  design  and/or
manufacture   thereof   (excluding   any  such   data,   technology,   drawings,
documentation and other information  relating to the design and/or  construction
of the SMT Machine), and/or the Licensed Products.

     1 (g) "Licensed  Territory" shall mean the United States of America and its
territories and possessions. 

     1 (h)  "Related  Company",  singular  or  plural,  shall  mean any  parent,
subsidiary or affiliate  company of Sherwood,  or any subsidiary or affiliate of
any parent or subsidiary of Sherwood.

     l(i)  "Sherwood   Developments"   shall  mean  any   modifications   of  or
improvements to the Licensed Invention or the Licensed Product, whether patented
or not, made,  owned,  acquired or developed by Sherwood or made for Sherwood by
another,  and/or  licensed to Sherwood by another with the right to  sublicense,
before or during the term of this Agreement.

SECTION 2. WARRANTY; COVENANT

     2 (a) Licensor  warrants  that  Licensor is the owner of the entire  right,
title and interest in and to the Licensed Invention,  the Licensed Patent Rights
and the Licensed  Know-how,  that no license  embracing said  Invention,  Patent
Rights and/or Know-how has heretofore been granted,  that Licensor has the right
to grant the  licenses  granted in  Section 4 hereof,  that to  Licensor's  best
knowledge  and belief the  Licensed  Patent  Rights are,  or will be,  valid and
enforceable,  and that  manufacture,  use and/or sale of the Licensed  Invention
will not infringe any patent presently known to Licensor.

     2 (b) Licensor warrants that Licensor has disclosed or will timely disclose
to  Sherwood  any  and all  Licensed  Know-how  presently  owned  or  heretofore
developed  by  Licensor,  and  warrants  and agrees  that  Licensor  will timely
disclose to Sherwood any  additional  Licensed  Know-how  that Licensor may own,
acquire or develop during the term of this Agreement.


                                       3
<PAGE>


     2 (c) Licensor  warrants that Licensor will  cooperate in  prosecution  and
maintenance of the Licensed  Patent  Rights.  The  responsibility  for directing
payment of any patent  maintenance  fees shall be in Licensor.  Licensor further
warrants that after execution of this  Agreement,  any fee payable to the United
States  Patent and Trademark  Office for any of the Licensed  Patent Rights will
not be paid  based on a claim of small  entity  status  and that  Licensor  will
instruct Licensor's  attorneys to that effect, and that Licensor will provide to
Sherwood,  within thirty (30) days of any request by Sherwood,  any  information
and copies of any records that Licensor has concerning  conception  and/or first
reduction to practice of the Licensed Invention and the dates thereof.  Licensor
further warrants that Licensor will instruct Licensor's attorneys (i) to pay any
maintenance fee for the Licensed Patent Rights,  (ii) to keep Sherwood  informed
of the status of the Licensed  Patent  Rights,  (iii) to provide  Sherwood  with
copies  of  all  official  papers  relating  to  the  filing,   prosecution  and
maintenance of such Licensed Patent Rights,  (iv) to promptly notify Sherwood of
issuance  of any patent  included  in the  Licensed  Patent  Rights,  and (v) to
counsel with  Sherwood  attorneys  in an effort to secure the broadest  possible
patent  protection  on the  Licensed  Invention  that is  reasonably  available.
However, Licensor shall have the right to control and finally decide any matters
in regard to preparation, filing, prosecution and/or maintenance of the Licensed
Patent Rights.

     2 (d)  Licensor  represents  and warrants  that  Licensor and any direct or
ultimate  parent entities of Licensor do not have total assets and/or annual net
sales of Ten  Million  Dollars  ($10,000,000.00)  or more  within the meaning of
Title 11 of the Hart-Scott-Rodino  Antitrust Improvements Act of 1976 (15 U.S.C.
ss. 18a) and the regulations promulgated thereunder, 16 C.F.R. 801.1 et seq.

     2 (e) Sherwood warrants, covenants and agrees that it shall timely disclose
to Licensor any and all information relating to Sherwood Developments, including
without limitation,  all data, technology,  drawings,  documentation,  and other
proprietary and/or confidential information.

SECTION 3. INITIAL PAYMENT

     3 (a) Upon execution of this  Agreement,  Sherwood will pay to Licensor the
sum of One Thousand  Dollars ($ 1,000.00) in full payment for the  non-exclusive
license to utilize the Licensed Know-how granted in Paragraph 4(a) hereof.

     3 (b) Additionally,  upon execution of this Agreement, Sherwood will pay to
Licensor the sum of One Hundred  Thousand  Dollars  ($100,000.00)  as an advance
payment of, and offsettable  against,  any payments due under  Paragraphs  5(a),
5(b) and 5(c) hereof.


                                       4
<PAGE>


SECTION 4. LICENSES GRANTED

     4(a)  Licensor  hereby  grants to Sherwood  and Sherwood  hereby  accepts a
paid-up  non-exclusive license to utilize the Licensed Know-how in perpetuity to
make,  have made for it,  use and/or  sell the  Licensed  Invention,  and/or the
Licensed Products in the Licensed Territory.

     4(b)  Licensor  hereby  grants to Sherwood  and Sherwood  hereby  accepts a
non-exclusive  license  under the  Licensed  Patent  Rights and a  non-exclusive
sub-license  under the Movern Patent to make,  have made for it, use and/or sell
the Licensed Invention and/or the Licensed Products in the Licensed Territory.

     4(c)  Sherwood  hereby  grants to Licensor  and Licensor  hereby  accepts a
perpetual,  fully paid, royalty free,  non-exclusive license to make, use and/or
sell  the  Sherwood   Developments  or  products   incorporating   the  Sherwood
Developments.

SECTION 5. ROYALTIES

     5 (a) As  consideration  for the  non-exclusive  license  herein granted in
Paragraph  4(b)  hereof,  Sherwood  agrees to pay to Licensor an earned  royalty
equal to five percent (5 %) of Net Sales of Licensed  Products invoiced for sale
by Sherwood.  Such royalty payment shall be mailed to Licensor within sixty (60)
days (the "Royalty  Payment Date") after the end of each six-month period ending
June 30 and December 31 (each a "Royalty  Reporting Period") of each year (each,
a "Royalty Year") during the term of this Agreement.

     5 (b) It is understood  that this  Agreement  includes no obligation on the
part of Sherwood,  expressed or implied,  to commercialize  Licensed Product, to
sell any specific number of Licensed Products,  or to do so in any set period of
time.  However, if Sherwood shall either (i) fail to introduce to the market and
make  commercial  sales of  Licensed  Product  within  two (2)  years  from  the
effective date of this Agreement,  or (ii) fail to sell any Licensed Product for
a  continuous  period  of five (5)  years at any  time  during  the term of this
Agreement, then in either event, Licensor shall have the option, upon sixty (60)
days written notice to Sherwood, to terminate this Agreement.

     5 (c) In the event that any of the Licensed  Patent  Rights in the Licensed
Territory is finally declared abandoned,  lapsed,  unenforceable or, in whole or
in part,  invalid  to the extent  that no claim of the  Licensed  Patent  Rights
survives  which  claims  Licensed  Products  made and/or sold by Sherwood or any
Related Company within the Licensed Territory,  then thereafter,  Sherwood shall
not be  required to pay any royalty  under this  Agreement.  In the event that a
valid,  enforceable  patent  claiming  Licensed  Products  made  and/or  sold by
Sherwood  or any Related  Company in the  Licensed  Territory  is not granted to
Licensor  within  three (3) years after the  effective  date of this  Agreement,
then,  unless otherwise  mutually agreed in writing or unless and until a valid,
enforceable  patent  claiming  Licensed  Products  is  subsequently  granted  to
Licensor  within the  Licensed  Territory,  Sherwood  shall  thereafter  only be
required to pay to Licensor


                                       5
<PAGE>


one-half (1/2) the applicable  royalty set forth in Paragraph 5(a) hereof on the
Net  Sales  in  the  Licensed  Territory  of  products  previously  meeting  the
definition of Licensed  Products under Paragraph 1 (d) hereof for the remainder,
if any,  of a period of three (3) years from the date of first sale of  Licensed
Products by Sherwood or Related  Company.  Sherwood and any  sublicensees  shall
thereafter be deemed to have a fully paid-up, royalty-free non-exclusive license
under the Licensed Patent Rights within the Licensed Territory, unless and until
a valid,  enforceable patent claiming Licensed Products is subsequently  granted
to Licensor, in which event the obligation to pay a full royalty under Paragraph
5(a) hereof for the future shall be  reinstated.

     5 (d)  Sherwood  shall have the right to deduct  from any  payments  due to
Licensor under Paragraphs 5(a), 5(b) and/or 5(c) hereof,  the full amount of any
payments  required to be made and actually  made by Sherwood with respect to any
rights under the Movern  Patents or the Movern  License in  connection  with the
Licensed Invention, the Licensed Patent Rights or this Agreement.

SECTION 6. ROYALTY CALCULATION, REPORTS AND RECORDS

 6 (a) Sherwood agrees,  and will require any Related Companies to agree,
to keep true and  accurate  records  adequate to establish  any royalty  payable
under this Agreement and to permit an independent  certified  public  accountant
selected by Licensor and  reasonably  acceptable to Sherwood,  to inspect,  on a
confidential  basis and at  Licensor's  expense,  said records once  annually at
reasonable times upon reasonable  notice,  but only within a period of three (3)
years after the last day of the Royalty  Reporting  Period to which such records
relate. On the Royalty Payment Date, Sherwood shall provide to Licensor a report
(a "Royalty Report") for each Royalty Reporting Period, setting forth the earned
royalty  due and payable on Net Sales,  if any,  of Sherwood  and/or any Related
Companies of Licensed Products during such Royalty Reporting Period, accompanied
by payment of all amounts  shown to be so due and payable,  if any.

     6 (b) Earned  royalty,  as provided in Paragraph 5(a) hereof,  shall accrue
upon the first sale of Licensed Product to an unrelated third-party distributor,
retailer or end user.

     6 (c) Only a single royalty under Paragraph 5(a) hereof shall be payable to
Licensor for each specific unit of Licensed Product  regardless of the number of
countries in which manufacture,  importation, sale, resale and/or use is made by
Sherwood,  any Related Companies and/or any direct or indirect customer thereof.
Nothing herein is intended nor shall it be construed to grant Sherwood any right
to sell or export or  manufacture  for sale to any place  outside  the  Licensed
Territory.  Each Royalty  Report shall contain a  certification  that no sale of
Licensed  Product was made outside the Territory by Sherwood  during the Royalty
Reporting Period to which such Royalty Report relates.

     6 (d)  All  taxes,  assessments  and  fees  of  any  nature  levied  by any
governmental  entity in the Licensed  Territory of this Agreement on the sale of
Licensed Products by Sherwood, or any Related Company shall be paid by Sherwood,
or any Related Company for its account. However,


                                       6
<PAGE>


if an income or other tax is levied on the  recipient of any royalty  under this
Agreement by any governmental entity and is legally required to be withheld from
the payment of royalty  from  Sherwood or from any Sherwood  sublicensee  and/or
Related Company to Sherwood, such tax shall be paid by Sherwood, its sublicensee
and/or Related  Company for the account of Licensor,  in which event an official
receipt  will be secured  evidencing  such  payment,  the receipt  forwarded  to
Licensor, and the amount of such tax deducted from royalty paid to Licensor.

     6(e) The  provisions  herein as to payment of royalties  shall not apply to
Licensed  Products  embodying  only the subject matter of claims of the Licensed
Patent Rights which have become  abandoned,  lapsed,  expired or which have been
finally declared invalid or unenforceable.

SECTION 7. PATENT ENFORCEMENT AND DEFENSE

     7(a)  If  Sherwood  obtains  notice  or  knowledge  that a third  party  is
infringing  or  misappropriating  any  patent,  trademark,  copyright  or  other
proprietary  rights  with  respect to the  Licensed  Patent  Rights,  the Movern
Patent, the Licensed Invention or the Licensed Products, Sherwood shall promptly
notify  Licensor of such  infringement or  misappropriation.  Sherwood agrees to
cooperate with Licensor in the conduct of any  litigation  which Licensor or its
licensors  may  elect  to  undertake  with  respect  to  such   infringement  or
misappropriation.  Sherwood  shall have the right but not the  obligation  to be
represented in such litigation by its own counsel at its own cost and expense.

     7(b)  Licensor  shall  not be  obligated  to  undertake  by  litigation  or
otherwise the collection of any claim against any person for loss of, damage to,
or  governmental  taking  of  the  Licensed   Invention,   the  Licensed  Patent
Application,  the Licensed Patent Rights or the Licensed Products,  but Licensor
will cooperate with Sherwood at Sherwood's  expense if Sherwood elects to pursue
such claims.

     7(c) Licensor shall  indemnify and hold Sherwood  harmless from and against
any  liabilities,   losses,  damages,  expenses  (including  without  limitation
reasonable  attorneys' fees and expenses),  causes of action,  suits, claims, or
judgments  asserted by third  parties (a "Third Party Claim")  against  Sherwood
arising  out  of a  Third  Party  Claim  with  respect  to the  infringement  or
misappropriation of a patent or other proprietary rights,  which may be asserted
by such third party, because of Sherwood's making, using or selling the Licensed
Invention or the Licensed  Products pursuant to and in accordance with the terms
and conditions of this Agreement, provided that Sherwood shall give Licensor (i)
prompt written notice of the institution or the assertion of a Third Party Claim
for which  indemnity  is or will be  claimed  hereunder  and (ii) to the  extent
permitted by law, the opportunity to take over, control,  settle and defend such
Third Party Claim, at the sole expense of Licensor and with counsel  selected by
Licensor. Sherwood has the right but not the obligation to be represented in any
such Third Party Claim by its own counsel, at its own cost and expense, provided
that such right does not prejudice the right of Licensor to take over,  control,
settle and defend  such Third  Party  Claim to the extent  permitted  by law. If
making, using or selling the Licensed


                                        7

<PAGE>


Invention or the Licensed  Products,  or part thereof is enjoined for any reason
whatsoever during the term of this Agreement,  Licensor has the right at its own
expense to (i) procure for Sherwood the right to continue to make, have made for
it, use and/or sell the Licensed  Invention and the Licensed  Products,  or part
thereof  which is the  subject of such  injunction,  or (ii) to  terminate  this
Agreement without further  obligation of either party to the other. This Section
7 contains  Sherwood's sole and exclusive remedy and Licensor's only obligations
with  respect  to the  infringement  or  misappropriation  of a patent  or other
proprietary  right which may be asserted by an owner thereof or any other person
having an interest therein.

     7(d) Licensor  shall not  indemnify  Sherwood,  hold  Sherwood  harmless or
defend  Sherwood  in respect of any claim of  infringement  or  misappropriation
where such infringement or misappropriation is the result of any modification or
change in the Licensed Invention or Licensed Products (including but not limited
to the Sherwood  Developments) which departs in any manner from the terms of the
Licensed Patent Rights.

SECTION 8. PATENT NOTICE MARKING

     Sherwood  shall,  and  shall  require  each  Related  Company,  to mark all
Licensed   Products  with  the  number  of  any   applicable   patent  or  other
identification  of the Licensed  Patent Rights in accordance with the provisions
of 35 U.S.C. ss.287.

SECTION 9. FORCE MAJEURE

     Neither party to this Agreement shall be responsible to the other party for
nonperformance  or delay in  performance  of any  terms  or  conditions  of this
Agreement  due to acts  of  God,  acts of  governments,  wars,  riots,  strikes,
accidents in  transportation,  or other causes beyond the reasonable  control of
the parties. Failure to pay money shall not be excused under this Section.

SECTION 10. TERM OF AGREEMENT

     Unless this  Agreement  shall be terminated by either party pursuant to the
provisions  hereof,  this Agreement  shall remain in force and effect during the
pendency and until the expiration of the  last-to-expire  of the Licensed Patent
Rights in the  Licensed  Territory,  at which time this  Agreement  will expire.
However,  Sherwood  and any  Related  Companies  shall  thereafter  have a fully
paid-up,  royalty-free  non-exclusive  license  to make,  have made for it,  use
and/or  sell the  Licensed  Invention  and any other  invention  claimed  in the
Licensed Patent Rights without limitation.

SECTION 11. TERMINATION

     11 (a) In the event that either  party hereto shall fail to comply with any
of its material  obligations  under this  Agreement  after the other party shall
have given thirty (30) days  written  notice of such failure to the first party,
which notice shall fully specify the obligation with which


                                       8


<PAGE>


the first  party has not  complied,  then the other  party,  by further  written
notice to the first party, may terminate this Agreement.

     11(b) All rights and licenses  granted under or pursuant to this  Agreement
by Licensor to Sherwood  are, and shall  otherwise be deemed to be, for purposes
of Section 365(n) of Title 11 U.S. Code (the  "Bankruptcy  Code"),  licenses and
rights to "intellectual property" as defined under Section 101 of the Bankruptcy
Code. The parties agree that  Sherwood,  as a licensee of such rights under this
Agreement,  shall retain and may fully  exercise all of its rights and elections
under the Bankruptcy Code.  Licensor shall also have the right to terminate this
Agreement in the event of the filing of a voluntary or  involuntary  petition of
bankruptcy of Sherwood.

     11 (c) Sherwood  may  terminate  this  Agreement at any time on thirty (30)
days notice in writing to Licensor.

SECTION 12. ASSIGNABILITY

     12(a) This  Agreement  may be assigned  by Licensor  and shall inure to the
benefit of its successors,  assigns or other legal representatives.  Without the
prior  written  consent of Licensor,  which may be withheld for any or no reason
whatsoever,  Sherwood  may not assign any rights  arising  under this  Agreement
except to a Related  Company  or to the  successor  in  interest  to the  entire
syringe business of Sherwood which, in any case,  expressly assumes, in writing,
the obligations hereunder.

     12(b) Licensor agrees to notify Sherwood in writing within thirty (30) days
of any change in ownership  or transfer of rights in any of the Licensed  Patent
Rights from any owner to any third party.

SECTION 13. NOTICES AND PAYMENTS

     13(a) Any notice, request,  consent, demand or other communication given or
required to be given under this License  shall be  effective  only if in writing
and shall be sent by one of the following  means to the addressee at the address
set  forth  in  Sections  13(b)  below  (or at such  other  address  as shall be
designated in accordance with this Section 13, and shall be deemed  conclusively
to have been  given:  (i) on the first  business  day  following  the day timely
deposited with an international or national overnight courier,  with the cost of
delivery  prepaid,  assuming  proof of delivery;  (ii) on the third business day
following the day duly sent by certified or registered mail, postage prepaid and
return receipt requested;  (iii) on the first business day after it is otherwise
actually  delivered to the addressee by courier;  or (iv) on the first  business
day after the day it is duly sent by both confirmed  facsimile  transmission and
one of the  forms  provided  in (i),  (ii) or  (iii)  above,  with  the  cost of
transmission prepaid.


                                       9


<PAGE>


     13(b) The  addresses  and  facsimile  telephone  numbers of the parties and
those persons receiving copies are as follows:

           To Lessor:       Univec, Inc.
                            999 Franklin Avenue
                            Garden City, New York 11530
                            Attention: Joel Schoenfeld
                            Facsimile No.: 516-739-3343
                            Telephone No.: 516-294-1000
 
           Copy to:         Sazer, Vaccaro & Prisco LLP
                            325 Wireless Boulevard
                            Hauppauge, New York 11788
                            Attention: Gary Sazer, Esq.
                            Facsimile No.: 516-273-9685
                            Telephone No.: 516-273-7171

           To Lessee:       Sherwood-Davis & Geck
                            1915 Olive Street
                            St. Louis, Missouri 63103-1642
                            Attention: Vice President -- OEM Sales
                            Facsimile No.: (314) 241-0232
                            Telephone No.: (314) 621-7788

           Copy to:         Sherwood-Davis & Geck
                            1915 Olive Street
                            St. Louis, Missouri 63103-1642
                            Attention: Corporate Counsel
                            Facsimile No.: (314) 241-5855
                            Telephone No.: (314) 621-7788

     13(c) All payments to be made  hereunder  shall be sent to Univec,  Inc. at
999 Franklin Avenue, Garden City, New York 11530, Attention: President.

SECTION 14. APPLICABLE LAW; JURISDICTION

     The parties  hereto agree that this  Agreement  shall be considered to have
been made in, and shall be construed and  interpreted in accordance with the law
of, the State of New York,  without  regard to any  principles  of  conflicts of
laws.  The parties  further agree that the courts of the State of New York shall
have exclusive jurisdiction over any dispute arising hereunder.


                                       10


<PAGE>


SECTION 15. TECHNICAL AND OTHER INFORMATION; CONFIDENTIALITY

     15(a) To the best of Licensor's knowledge,  any Licensed Know-how disclosed
under this Agreement is correct.  However,  nothing herein shall be construed to
indicate that Licensor in any manner  guarantees the correctness of the Licensed
Know-how,  or that Licensor assumes any liability whatsoever for any products or
parts thereof manufactured and sold by Sherwood in accordance with said Licensed
Know-how,  or as a result of the use  thereof.  Sherwood  shall  assume all such
liabilities  and hold Licensor  harmless from any liability  resulting  from the
manufacture,  use and sale of the Licensed Products under this Agreement, except
as herein provided.

     15(b) Subject to the  provisions of this  Agreement,  until the end of five
years after the expiration of the  last-to-expire  of the Licensed Patent Rights
in the Licensed  Territory,  Sherwood  shall respect and ensure  respect for the
strict  confidentiality  of all  aspects  of  the  information,  data,  studies,
processes and secrets pertaining to the Licensed Know-how and shall not disclose
nor allow the same to be disclosed to any other person without the prior written
consent of Licensor. In furtherance hereof, Sherwood hereby covenants and agrees
that it shall:

          (1) not  disclose  any  Licensed  Know-how  or  permit  access  to any
     Licensed  Know-how by any person except as  reasonably  required to fulfill
     its obligations under this Agreement; and

          (2) take all  reasonable  measures  deemed  necessary  or expedient to
     ensure  respect for the  confidentiality  and  continued  protection of the
     Licensed  Know-how  and to  prevent  unauthorized  access  to the  Licensed
     Know-how or possession,  reproduction,  modification,  use or  distribution
     thereof,  and in particular to take appropriate  measures,  by agreement or
     otherwise,  to ensure that its employees and former employees are prevented
     from doing anything that Sherwood is prohibited from doing pursuant to this
     Agreement.

     15(c) The  obligations of Sherwood under this Section 15 shall not apply to
any Licensed Know-how that:

          (1) is now,  or comes to be publicly  known  through no breach of this
     Agreement by Sherwood; or

          (2)  can  be  established  by  documentary   evidence  that  prior  to
     disclosure by Licensor, was in Sherwood's possession without restriction on
     disclosure  imposed  by  any  third  party  (and  not in  violation  of any
     obligation  by such third party  directly or indirectly to Licensor to keep
     such information confidential); or

          (3) is  disclosed to Sherwood on a  non-confidential  basis by a third
     party having no obligation of confidentiality,  directly or indirectly,  to
     Licensor in regard thereto.


                                       11


<PAGE>


     15(d) Sherwood shall use its reasonable business efforts to assure that all
information relating to Sherwood Developments  disclosed to Licensor pursuant to
this Agreement shall be correct.  However,  nothing herein shall be construed to
indicate that Sherwood in any manner  guarantees the correctness of the Sherwood
Developments, or that Sherwood assumes any liability whatsoever for any products
or parts  thereof  manufactured  and sold by  Licensor in  accordance  with said
Sherwood Developments,  or as a result of the use thereof. Licensor shall assume
all such  liabilities  and hold Sherwood  harmless from any liability  resulting
from the  manufacture,  use and sale of the  Sherwood  Developments  under  this
Agreement, except as herein provided.

     15(e) Subject to the  provisions of this  Agreement,  until the end of five
years after the expiration of the  last-to-expire  of the Licensed Patent Rights
in the Licensed  Territory,  Licensor  shall respect and ensure  respect for the
strict  confidentiality  of all  aspects  of  the  information,  data,  studies,
processes  and secrets  pertaining  to the Sherwood  Developments  and shall not
disclose  nor allow the same to be  disclosed  to any other  person  without the
prior  written  consent of Sherwood.  In  furtherance  hereof,  Licensor  hereby
covenants and agrees that it shall:

          (1) not  disclose any Sherwood  Developments  or permit  access to any
     Sherwood  Developments  by any  person  except as  reasonably  required  to
     fulfill its obligations under this Agreement; and

          (2) take all  reasonable  measures  deemed  necessary  or expedient to
     ensure  respect for the  confidentiality  and  continued  protection of the
     Sherwood  Developments and to prevent  unauthorized  access to the Sherwood
     Developments or possession, reproduction, modification, use or distribution
     thereof,  and in particular to take appropriate  measures,  by agreement or
     otherwise,  to ensure that its employees and former employees are prevented
     from doing anything that Licensor is prohibited from doing pursuant to this
     Agreement.

     15(f) The  obligations of Licensor under this Section 15 shall not apply to
any  Sherwood  Developments  that:  

          (1) is now,  or comes to be publicly  known  through no breach of this
     Agreement by Licensor; or

          (2)  can  be  established  by  documentary   evidence  that  prior  to
     disclosure by Sherwood, was in Licensor's possession without restriction on
     disclosure  imposed  by  any  third  party  (and  not in  violation  of any
     obligation  by such third party  directly or indirectly to Sherwood to keep
     such information confidential); or

          (3) is  disclosed to Licensor on a  non-confidential  basis by a third
     party having no obligation of confidentiality,  directly or indirectly,  to
     Sherwood in regard thereto.


                                       12


<PAGE>


SECTION 16. MISCELLANEOUS

     16(a) Upon the  termination  of this  Agreement,  Sherwood  and any Related
Companies shall have the right to dispose of all Licensed Products then on hand,
including work in process, and to meet all pending orders for Licensed Products.
All earned royalties which would otherwise be payable pursuant to Paragraph 5(a)
of this Agreement, had such termination not become effective, shall be paid with
respect to all such Licensed Products when sold as though this Agreement had not
been terminated.

     16(b) Neither  termination nor expiration of this Agreement shall terminate
Sherwood's obligation to pay all earned royalties which shall accrue through the
date of such expiration or termination.  Sherwood's obligation to report royalty
due and to submit its books and records for  inspection as provided in Paragraph
6(a) hereof shall continue until Sherwood's royalty  obligations shall have been
fully determined and discharged by proper payment.

     16(c) This Agreement contains all of the agreements and understandings made
between  the  parties  hereto  concerning  Licensed  Products  in  the  Licensed
Territory, and any prior agreements, express or implied, relating to the subject
matter  hereof are  expressly  superseded  and  canceled.  No  amendment of this
Agreement shall be effective unless in writing and signed by the parties hereto.

     16(d) This  Agreement  may be  executed in one or more  counterparts  which
taken together shall constitute one and the same agreement.


                                       13


<PAGE>


     IN WITNESS WHEREOF,  the parties have executed this Agreement  effective on
the day and year first above written.


SHERWOOD MEDICAL COMPANY, 
  doing business as SHERWOOD-DAVIS & GECK



By:                                        ATTEST:
       ____________________________               __________________________

       ____________________________        By: _____________________________
       (Type or Print Name)

Title: ____________________________

Date:
       ____________________________



UNIVEC, INC.



By:                                        ATTEST:
       ____________________________               __________________________

       ____________________________        By: _____________________________
       (Type or Print Name)

Title: ____________________________

Date:
       ____________________________


                                       14



<PAGE>


                                    GUARANTY

     The undersigned hereby jointly and severally guaranty to Sherwood Medical
Company, a Delaware corporation doing business as Sherwood-Davis & Geck
("Sherwood"), its successors and assigns, the payment of the maximum aggregate
amount of one million dollars ($ 1,000,000.00), reduced as hereinafter provided,
upon receipt of written notice from Sherwood that the Triggering Event (as
hereinafter defined) has occurred. For purposes of this Guaranty, "Triggering
Event" shall mean the failure of Univec, Inc., a New York corporation
("Univec"), to order Products having an aggregate purchase price of $6,700,000
based on the invoice price (the "Invoice Price") to Univec during the thirty-six
(36) month period (the "Order Period") commencing on the date hereof, all in
accordance with the terms of that certain O.E.M. Supply Agreement (the "OEM
Supply Agreement") dated the date hereof between Sherwood and Univec and to take
delivery of and pay for such Products as are so ordered and actually delivered
by Sherwood to Univec; provided. however, that if Sherwood accepts an order from
Univec and fails to fulfill such order for any reason then solely for the
purpose of this Guaranty, Univec shall be credited for the full Invoice Price
that would have been charged to Univec had such order been fulfilled by
Sherwood. The maximum aggregate amount payable by the undersigned under this
Guaranty shall be reduced by an amount equal to 14.925% of the Invoice Price for
Products ordered by Univec and paid for (or credited to Univec in accordance
with the proviso set forth in the immediately preceding sentence) in accordance
with the OEM Supply Agreement.

     Sherwood shall give written notice of the occurrence of a Triggering Event.
Upon receipt of such notice, Univec, or the Guarantors on Univec's behalf, shall
have thirty (30) days during which to cure any deficiency. Any waiver, extension
of time or other indulgence granted to Univec from time to time by Sherwood, its
agents, successors or assigns, with respect to any payments due under the OEM
Supply Agreement shall not modify or amend this Guaranty which shall continue in
accordance with its terms.

     This Guaranty shall terminate, become void and of no further force and
effect immediately upon the earliest to occur of the following: (i) the ordering
of Products and payment therefor by Univec having an aggregate purchase price of
$6,700,000 based on the Invoice Price thereof (including in the aggregate amount
of such payments any and all credits in Univec's favor for Products ordered and
not delivered by Sherwood as provided above) and (ii) the last day of the Order
Period if, prior to that date, Sherwood shall have failed for any reason to
deliver against Univec purchase orders therefor at least 100,000,000 Plungers
complying with the Specifications (as the same shall be agreed upon from time to
time) in accordance with the OEM Supply Agreement. Unless otherwise indicated
herein, capitalized terms used in this Guaranty shall have the meanings ascribed
to them in the OEM Supply Agreement. Any notices permitted or required under
this




<PAGE>


Guaranty shall be delivered to Sherwood at 1915 Olive Street, St. Louis,
Missouri 63103 and to any Guarantor at the address set forth below his signature
hereto in the manner provided in Section 11 of the OEM Supply Agreement.

     IN WITNESS WHEREOF, the undersigned have signed this Guaranty this 30th day
of May, 1996.


                                   /s/ Joel Schoenfeld
                                   -------------------------------
                                   Joel Schoenfeld

                         Address:  3 EAGLE CHASE
                                   -------------------------------
                                   WOODBURY NEW YORK 11797
                                   -------------------------------

                                   /s/ John Frank
                                   -------------------------------
                                   John Frank

                         Address:  74 Essex Road
                                   -------------------------------
                                   Summit, New Jersey 07901
                                   -------------------------------


                                   /s/ Alan Gold
                                   -------------------------------
                                   Alan Gold

                         Address:  68 EAGLE CHASE
                                   -------------------------------
                                   WOODBURY, N.Y. 11797
                                   -------------------------------


                                   /s/ David Shonfeld
                                   -------------------------------
                                   David Shonfeld

                         Address:  20 Breuer Avenue 
                                   -------------------------------
                                   Great Neck 11023
                                   -------------------------------





<PAGE>


                                 EQUIPMENT LEASE

     EQUIPMENT LEASE dated May 30, 1996 by and between UNIVEC, INC., a New York
corporation ("Lessor"), having its principal place of business at 999 Franklin
Avenue, Garden City, New York 11530 and SHERWOOD MEDICAL COMPANY, doing business
as Sherwood-Davis & Geck, a Delaware corporation ("Lessee"), having its
principal place of business at 1915 Olive Street, St. Louis, Missouri 63103.

                                  WITNESSETH:

     WHEREAS, Lessee has made or caused to be made a 128 cavity mold and mold
inserts for the manufacture of Lessor's proprietary design of single-use syringe
plungers ("Plungers") and spare parts for such mold (collectively, the "Plunger
Mold");

     WHEREAS, concurrently herewith Lessee is selling, transferring and
conveying all right, title and interest in and to the Plunger Mold to Lessor;

     WHEREAS, Lessee desires to lease back from Lessor the Plunger Mold for use
in the manufacture and production of Plungers for use in the assembly of
single-use hypodermic syringes (collectively, the "Products") using Lessor's
proprietary design specifications previously provided to Lessee and as the same
may hereafter from time to time be agreed upon by the parties;

     WHEREAS, Lessor desires to lease the Plunger Mold to Lessee for use in the
manufacture and production of the Plungers;

     NOW, THEREFORE, in consideration of the mutual covenants and promises
herein set forth, the parties hereby agree as follows:

     1. Agreement to Lease.

          (a) This Agreement sets forth the terms and conditions upon which
     Lessor shall lease to Lessee and Lessee shall lease from Lessor the Plunger
     Mold. Lessee hereby confirms, represents, warrants and agrees that the
     Plunger Mold is being leased (and will be used solely) for commercial or
     business purposes (and not for consumer, personal, family or household
     purposes).

          (b) Lessee acknowledges that Lessor is not responsible for any
     repairs, maintenance, service, latent or other defects in the Plunger Mold
     or in the operation thereof, or for compliance of the Plunger Mold with
     requirements of any laws, ordinances, governmental rules or regulations
     (including, but not limited to, laws with respect to environmental
     matters), or





<PAGE>


     for infringement of any patent, trademark, copyright or trade secret, or
     for any direct, indirect, special, incidental, consequential or contingent
     damages, including without limitation any lost profits, arising out of the
     use of or inability to use the Plunger Mold, whether for Lessor or Lessee.

          (c) Lessee acknowledges that it has undertaken to design and
     manufacture the Plunger Mold to produce Plungers suitable for use in the
     manufacture and assembly of the Products. Lessee has inspected the Plunger
     Mold and Plungers produced by the Plunger Mold and hereby accepts the
     Plunger Mold and acknowledges that it is capable of producing commercial
     quantities of Plungers in compliance with the specifications now and
     hereafter from time to time agreed upon by the parties.

     2. Rent and Lease Term. Lessee shall pay Lessor rent (the "Rent") for the
Plunger Mold in 36 equal consecutive monthly (the "Rent Term") installments of
$54,056 payable on or before the first day of each month commencing on the first
day of the month immediately following the date this Lease is executed.
Notwithstanding the full payment of the Rent during the Rent Term, the term of
this Lease shall be the six year period commencing on the date hereof (the
"Lease Term"). The Lease Term may not be terminated by Lessee for any reason.

     3. Payment Obligation: Net Lease. All Rent and other payments under this
Lease shall be made to Lessor at its address shown above, or at such other
address as Lessor may designate, in immediately available funds in such coin or
currency of the United States of America which at the time of payment shall be
legal tender for the payment of public and private debts. THIS LEASE IS A "NET
LEASE" AND LESSEE'S OBLIGATION TO PAY ALL RENT AND OTHER SUMS HEREUNDER SHALL BE
ABSOLUTE AND UNCONDITIONAL, AND SHALL NOT BE SUBJECT TO ANY ABATEMENT,
REDUCTION, DEDUCTION, DIMINUTION, SETOFF, DEFENSE, COUNTERCLAIM, INTERRUPTION,
DEFERMENT OR RECOUPMENT, FOR ANY REASON WHATSOEVER. This Lease shall not
terminate, nor shall Lessee's obligations hereunder be affected, by reason of
any defect in, damage to or loss of the Plunger Mold from any cause whatsoever,
the prohibition of or interference with Lessee's use thereof by any person,
corporation or governmental authority, the validity or unenforceability or lack
of due authorization of this Lease, or for any other cause whether similar or
dissimilar to the foregoing, it being the express intention of Lessor and Lessee
that all Rent and other amounts payable by Lessee under this Lease shall be, and
continue to be, payable in all events.

     4. Statement of Lease. This Lease is a lease of personal property. Lessee
agrees to take all action necessary or reasonably requested by Lessor to ensure
that the Plunger Mold shall be and remain personal property, and nothing in this
Lease shall be construed as conveying to Lessee any interest in the Plunger Mold
other than its interest as a Lessee hereunder. Lessee shall, at its expense:
protect and defend the interests of Lessor in the Plunger Mold against all third
party claims other than claims arising out of Lessor's actions or omissions


                                      -2-


<PAGE>


or arising out of Lessor's negligence or wilful misconduct; keep the Plunger
Mold free and clear of any mortgage, security interest, pledge, lien, charge,
claim or other encumbrance (each, a "Lien", and collectively, "Liens"), except
any Liens created by or through Lessor or acts or omissions of Lessor
(collectively, "Lessor's Liens"); give Lessor immediate notice of the existence
of any such Lien; and indemnify and defend Lessor against any claim, liability,
loss, damage or expense arising in connection with any of the foregoing, other
than Lessor's Liens. Lessee, at its expense, shall promptly pay, satisfy and
duly and promptly discharge, any Lien (other than Lessor's Liens).

     5. Permitted Use.

          (a) The Plunger Mold shall be used and operated by Lessee only in the
     ordinary conduct of its business by qualified employees of Lessee and in
     accordance with all applicable manufacturer and vendor instructions, as
     well as with all applicable legal and regulatory requirements. Except as
     expressly provided in Section 5(b) hereof, Lessee shall use the Plunger
     Mold exclusively for the manufacture and assembly of the Plungers for or at
     the request of Lessor. Lessee shall procure and maintain in effect all
     licenses, certificates, permits, approvals and consents required by
     federal, state or local laws and regulations in connection with the
     delivery, installation, use and operation of the Plunger Mold. During the
     Lease Term, the Plunger Mold shall be installed at Lessee's manufacturing
     facility located in Norfolk, Nebraska. Lessee shall not change the location
     of the Plunger Mold without obtaining Lessor's prior written consent, which
     shall not be unreasonably withheld. In no event shall the Plunger Mold be
     located in a facility that is either (i) outside the United States of
     America or (ii) not approved by the United States Food and Drug
     Administration.

          (b) Subject to the conditions set forth herein, Lessor agrees to
     permit Lessee to use the Plunger Mold as a back-up mold for its own syringe
     production. Lessee shall not use the Plunger Mold for its own syringe
     production if there is an unfilled order for Plungers from Lessor
     outstanding. If Lessee receives an order for Plungers from Lessor while the
     Plunger Mold is being used by Lessee for its own syringe production, Lessee
     covenants and agrees that it will cause the Plunger Mold to be converted
     over for production of Plungers for Lessor within not more than ten (10)
     days after receipt of Lessor's order.

     6. Maintenance and Alterations.

          (a) Lessee shall, at its expense, repair and maintain the Plunger Mold
     so that it will remain in the same condition as when delivered to Lessee,
     or as modified to improve the quantity or quality of Plungers produced by
     the Plunger Mold, ordinary wear and tear from proper use excepted,
     including, without limitation, repairing and restoring the Plunger Mold to
     good operating condition if it becomes damaged. Lessee shall maintain the
     Plunger Mold in accordance with all good manufacturing practices and shall
     maintain an adequate supply of spare parts. Such repair and maintenance
     shall be performed in compliance with all requirements necessary to enforce
     all warranty rights and in accordance with all applicable legal


                                      -3-


<PAGE>


     and regulatory requirements. If Lessee fails to maintain the Plunger Mold
     in accordance with the terms hereof, Lessee shall enter into and keep in
     effect during the Lease Term any maintenance agreements with respect to the
     Plunger Mold as reasonably may be requested by Lessor. Lessee's obligation
     to repair, maintain and preserve the Plunger Mold shall not constitute
     authority to incur mechanic's or supplier's liens. Lessee shall, at its
     expense, make such alterations (collectively, "Required Alterations") to
     the Plunger Mold during the Lease Term as may be required by applicable
     legal and regulatory requirements. In addition, Lessee may at its expense,
     without Lessor's consent, so long as no Event of Default, or event which
     with the passage of time or giving of notice, or both, would constitute an
     Event of Default (each, an "Incipient Default"), has occurred and is
     continuing, make alterations (collectively, "Permitted Alterations") to the
     Plunger Mold which do not impair the commercial value or function or use of
     the Plunger Mold for the manufacture and production of Plungers and which
     are readily removable without causing material damage to the Plunger Mold.
     Any Permitted Alterations not removed by Lessee prior to the return of the
     Plunger Mold to Lessor, and all Required Alterations, shall immediately
     without further action become the property of Lessor and part of the
     Plunger Mold for all purposes of this Lease.

          (b) In furtherance of the provisions of Section 5(b) hereof and solely
     in accordance with the limitations set forth therein, Lessee may make such
     temporary and readily reversible alterations (the "Change-Over
     Alterations") to the Plunger Mold as may be necessary to permit the Plunger
     Mold to be used as a back-up mold for Lessee's own syringe production.
     Change-Over Alterations must be removed within ten (10) days of receipt of
     an order for Plungers from Lessor and prior to the return of the Plunger
     Mold in accordance with Section 7 hereof.

          (c) Other than as provided in this Section 6, Lessee may make no
     alterations to the Plunger Mold. Any prohibited alterations to the Plunger
     Mold shall, at Lessor's election, immediately become the property of Lessor
     without further action and without Lessor thereby waiving any Event of
     Default or remedies with respect thereto.

     7. Return. Within fifteen (15) days after the expiration of the Lease Term
or earlier termination of this Lease, Lessee shall, at its expense, return the
Plunger Mold to Lessor at such location in the continental United States as may
be specified by Lessor, and in the condition required by Section 6 hereof.
Unless otherwise directed in writing by Lessor, the Plunger Mold shall be
returned to Lessor with inserts installed and assembled in the mold base for the
manufacture and production of Plungers.

     8. Identification. Lessee shall, at its expense, place and maintain
permanent markings on the Plunger Mold evidencing Lessor's ownership, security
and other interests therein, as specified from time to time by Lessor. Lessee
shall not place or permit to be placed any other markings on the Plunger Mold
which might indicate any ownership or security interest in the Plunger Mold. Any
markings on the Plunger Mold not made at Lessor's request shall be


                                      -4-


<PAGE>


removed by Lessee, at its expense, prior to the return of the Plunger Mold, in
accordance with Section 7 hereof.

     9. Inspection. Upon reasonable prior notice, Lessee shall make the Plunger
Mold and all related records available to Lessor or its agents for inspection
during regular business hours at the location of the Plunger Mold.

     10. No Lessee Sublease or Assignment. Without the prior written consent of
Lessor, which may be withheld for any or no reason whatsoever, Lessee shall not
sublease or otherwise relinquish possession or control of, or assign, pledge,
hypothecate or otherwise transfer, dispose of or encumber the Plunger Mold, this
Lease, or any part thereof or interest therein, or any right or obligation with
respect thereto.

     11. Lessor Assignment. Lessor may from time to time without notice to
Lessee sell, mortgage, pledge, grant a security interest in, assign or otherwise
transfer (each, a "Transfer"), in whole or in part, this Lease, the Plunger
Mold, or any of its interests, rights or obligations with respect hereto or
thereto, including, without limitation, all Rent and other sums due or to become
due under this Lease, to one or more persons or entities (each an "Assignee").
Each Assignee shall have, to the extent provided in any document effecting such
Transfer, Lessor's rights, powers, privileges and remedies with respect thereto
but shall not be obligated to Lessee, except to the extent expressly provided in
any document, instrument or agreement executed by such Assignee in connection
with a Transfer (each, a "Transfer Document"), to observe or perform any duty,
covenant or condition required to be observed or performed by Lessor. Except to
the extent expressly assumed by an Assignee in any Transfer Document, no
Transfer shall relieve Lessor from any of its obligations to Lessee. Lessee
shall, upon receipt of notice of a Transfer from Lessor, be bound by such
Transfer. The rights of any such Assignee in and to any sums payable to Lessor
under provisions of this Lease shall not be subject to any abatement whatsoever
and shall not be subject to any claim, defense, counterclaim, setoff or
recoupment whatsoever that Lessee may at any time have against Lessor. Lessee
agrees that any such transfer or assignment will not impair the prospect of
obtaining return performance by, materially change the duty of, or materially
increase the burden or risk imposed on, Lessee under this Lease, and Lessee
waives any rights or remedies it may otherwise have, under Article 2A of the
Uniform Commercial Code (the "UCC") in effect in the State of New York or in any
other jurisdiction, or otherwise, to oppose, prohibit, claim damages with
respect to or otherwise affect any such transfer or assignment. Any Assignee
shall be considered a third party beneficiary of all of Lessee's
representations, warranties and obligations hereunder to Lessor. Lessee agrees
(a) in connection with any such transfer or assignment, to provide such
instruments, documents, acknowledgments and further assurances as Lessor or any
Assignee may deem necessary or advisable to effectuate the intents of this Lease
or any such Transfer, with respect to such matters as this Lease, the Plunger
Mold, Lessee's obligations to such Assignee and such other matters as may be
reasonably requested, and (b) that after receipt by it of written notice of any
Transfer from Lessor or from Lessor's Assignee, all Rent and other amounts which
are then and thereafter due under this Lease shall be paid unconditionally to
such Assignee at the place of


                                      -5-


<PAGE>


payment designated in such notice. Notwithstanding the foregoing, Lessee shall
not be required to provide to Lessor or any Assignee any financial statements
that Lessee does not make available to its other creditors.

     12. Risk of Loss. Lessee shall bear all risk of loss, damage, theft,
taking, destruction, confiscation or requisition (each a "Loss") with respect to
the Plunger Mold, however caused or occasioned (except any such Loss caused or
occasioned by the acts or omissions of Lessor), which shall occur prior to the
return of the Plunger Mold in accordance with Section 7 hereof. In addition,
Lessee hereby assumes all other risks and liabilities, including, without
limitation, personal injury or death and property damage, arising with respect
to the Plunger Mold (unless arising directly as a result of Lessor's negligence
or willful misconduct), including, without limitation, those risks and
liabilities arising with respect to the manufacture, purchase, ownership,
shipment, transportation, delivery, installation, leasing, possession, use,
storage and return of the Plunger Mold, howsoever arising, in connection with
any event occurring prior to such Plunger Mold's return in accordance with
Section 7.

     13. Casualty. If the Plunger Mold shall become lost, stolen, destroyed or
irreparably damaged from any cause whatsoever, or shall be taken, confiscated or
requisitioned, unless, in each case, same is caused by Lessor, (any such event
herein called an "Event of Loss"), Lessee shall promptly notify Lessor of the
occurrence of such Event of Loss, and shall pay Lessor, within 15 days after the
date of such Event of Loss (but in no event later than the Rent payment date
next following such Event of Loss), an amount equal to the then unpaid balance
of the Rent, reduced by the amount of insurance proceeds paid or payable
directly to Lessor on account of such loss. Upon Lessor's receipt of such
payment for the entire unpaid balance of the Rent, the Lease shall automatically
terminate as to such Plunger Mold. Upon such termination after an Event of Loss,
Lessor shall instruct Lessee with respect to the disposition of any damaged or
destroyed Plunger Mold. In the alternative, upon receipt of the entire unpaid
balance of the Rent, Lessor may by written notice to Lessee transfer, convey and
assign all of its right, title and interest in such Plunger Mold to Lessee, on
an as-is, where-is basis, without recourse or warranty.

     14. Insurance.

     (a) Lessee shall keep the Plunger Mold insured (or shall self insure the
Plunger Mold) against all risks of loss or damage from every cause whatsoever
occurring during the Lease Term for an amount not less than the higher of the
full replacement cost of the Plunger Mold or the entire aggregate unpaid Rent.
Lessee shall also carry public liability insurance, both personal injury and
property damage, covering the Plunger Mold, and Lessee shall be liable for any
deductible portions of all such insurance.

     (b) All insurance required under this Section 14 shall name Lessor as
additional insured and loss payee. Such insurance shall be maintained with such
insurers and shall be in such forms as are reasonably satisfactory to Lessor or,
if Lessee elects to self insure


                                      -6-


<PAGE>


the Plunger Mold, the terms of such self insurance shall be disclosed in writing
and be reasonably acceptable to Lessor. All applicable policies shall provide
that no act, omission or breach of warranty by Lessee shall give rise to any
defense against payment of the insurance proceeds to Lessor. Lessee shall pay
the premiums for such insurance and, at the request of Lessor, deliver to Lessor
a current certificate evidencing such insurance coverage that is reasonably
satisfactory to Lessor. In any event, Lessee shall provide Lessor with
endorsements upon the policies issued by the insurers which evidence the
existence of insurance coverage required by this Section 14 and by which the
insurers agree to give Lessor written notice at least thirty (30) days prior to
the effective date of any expiration, modification, reduction, termination or
cancellation of any such policies.

     (c) The proceeds of insurance required under this Section 14 and payable as
a result of loss or damage to the Plunger Mold shall be applied as set forth in
Section 13 above. Lessee covenants and agrees promptly to make claim for,
receive payment of, execute and endorse in favor of and deliver to Lessor for
immediate and direct payment to Lessor all documents, checks or drafts received
in payment for loss or damage under any insurance policies required by this
Section 14.

     (d) Notwithstanding anything herein, Lessor shall not be under any duty to
examine any evidence of insurance furnished hereunder, or to ascertain the
existence of any policy or coverage, or to advise Lessee of any failure to
comply with the provisions of this Section 14.

     15. Lessee's Representations And Warranties. Lessee hereby represents and
warrants to Lessor, and agrees with Lessor, as follows:

          (a) Lessee is a corporation duly organized, validly existing and in
     good standing under the laws of the State of Delaware; Lessee has full
     power and authority and all necessary licenses and permits to carry on its
     business as presently conducted, to own or hold under lease its properties
     and to enter into this Lease and to perform its obligations under this
     Lease; and Lessee is duly qualified to do business as a foreign corporation
     and is in good standing in each jurisdiction in which the character of its
     properties or the nature of its business or the performance of its
     obligations under this Lease requires such qualification. Lessee is a
     wholly-owned subsidiary of American Home Products Corporation, a Delaware
     corporation.

          (b) The execution and delivery by Lessee of this Lease and the
     performance by Lessee of its obligations under this Lease have been duly
     authorized by all necessary corporate action on the part of Lessee; do not
     contravene any law, governmental rule or regulation or any order, writ,
     injunction, decree, judgment, award, determination, direction or demand
     (each, an "Order") binding on Lessee or its properties or the corporate
     charter or by-laws of Lessee; and do not and will not contravene the
     provisions of, or constitute a default (either with or without notice or
     lapse of time, or both) under, or result in the creation of any Lien upon,


                                      -7-


<PAGE>


     the Plunger Mold or any property of Lessee under any indenture, mortgage,
     contract or other instrument to which Lessee is a party or by which Lessee
     or any of its properties is bound.

          (c) No consent or approval of, giving of notice to, registration with,
     or taking of any other action by, any state, federal or other governmental
     commission, agency or regulatory authority or any other person or entity is
     required for the consummation or performance by Lessee of the transactions
     contemplated under this Lease.

          (d) This Lease has been duly entered into and delivered by Lessee and
     constitutes a legal, valid and binding agreement of Lessee enforceable
     against Lessee in accordance with its terms, except as limited by any
     bankruptcy, insolvency, reorganization or other similar laws of general
     application affecting the enforcement of creditor or Lessor rights.

          (e) There are no actions, suits or proceedings pending or to the
     knowledge of Lessee threatened against or affecting Lessee or any property
     of Lessee in any court, before any arbitrator of any kind or before or by
     any federal, state, municipal or other governmental department, commission,
     board, bureau, agency or instrumentality (each, a "Governmental Body"),
     which, if adversely determined, would materially adversely affect the
     business, assets, operations or condition, financial or otherwise, of
     Lessee, or adversely affect the ability of Lessee to perform its
     obligations under this Lease; and Lessee is not in default with respect to
     any order of any court, arbitrator or Governmental Body.

          (f) Lessee is not a party to any agreement or instrument or subject to
     any charter or other corporate restriction which materially adversely
     affects or, so far as Lessee can now foresee, will materially adversely
     affect the business, operations or properties of Lessee or the ability of
     Lessee to perform its respective obligations under this Lease.

          (g) Lessee has filed all required tax returns in all jurisdictions in
     which such returns were required to be filed and has paid, or made
     provision for, all taxes shown to be due and payable on such returns and
     all other taxes and assessments which are payable by it, except for any
     taxes and assessments of which the amount, applicability or validity is
     currently being contested in good faith by appropriate proceedings and
     which in the aggregate do not involve material amounts.

          (h) Lessee is not in default in the payment of the principal of or
     interest on any indebtedness for borrowed money or in default under any
     instrument or agreement under or subject to which any indebtedness for
     borrowed money has been issued; no event has occurred and is continuing
     under the provisions of any such instrument or agreement which with the
     lapse of time or the giving of notice, or both, would constitute a default
     or an event of default thereunder. Lessee is not in violation of any
     provision of its corporate charter or by-laws or of any term of any
     material agreement, lease of real or personal property, including, without
     limitation, any term providing for the payment of rent or other instrument;
     and no Event of Default has occurred and is continuing with respect to this
     Lease as of the date hereof.


                                      -8-


<PAGE>


          (i) Lessee has not taken and will not take any action or maintain any
     position inconsistent with treating this Lease as a valid leasehold
     interest in the Plunger Mold.

     16. Income Tax Status. This Lease has been entered into on the basis that
it shall be construed as a lease for the purposes of all federal, state and
local taxes and that Lessor shall be entitled to such credits, deductions and
other benefits as are provided to a Lessor of tangible personal property. This
is a "net lease" with all insurance, maintenance and taxes for the account of
the Lessee.

     17. Taxes and Fees. Lessee hereby assumes liability for, and shall pay when
due, and on a net after-tax basis to Lessor shall indemnify and defend Lessor
against, all fees, taxes and governmental charges (including, without
limitation, interest and penalties) of any nature imposed upon Lessee with
respect to this Lease or the Plunger Mold, including, without limitation,
Lessee's manufacture, purchase, ownership, shipment, transportation, delivery,
installation, leasing, possession, use, operation, storage and return of the
Plunger Mold. Lessee shall at its expense file when due with the appropriate
authorities any and all tax and similar returns and reports required to be filed
with respect to this Lease or the Plunger Mold (with copies to Lessor).

     18. Indemnification. Lessee hereby assumes liability for, and shall pay
when due, and shall indemnify, defend and hold Lessor and its assigns harmless
from and against (a) any and all liabilities, losses, damages, penalties,
claims, actions, suits, costs and expenses in any way relating to or arising out
of Lessee's performance or failure to perform under this Lease or out of
Lessee's use or possession of the Plunger Mold, including without limitation the
manufacture, ordering, purchase, ownership, shipment, transportation, delivery,
acceptance or rejection, installation, leasing, possession, use, operation,
storage, removal, return, sale or other disposition of the Plunger Mold,
including, without limitation, any of such as may arise from (whether
discoverable by Lessee or Lessor) any claims based on strict liability in tort
unless arising as a result of Lessor's negligence or willful misconduct, and (b)
all UCC and other applicable filing and recording fees and lien searches and the
like, (no matter how described in any jurisdiction) with respect to this Lease.
Lessee shall give Lessor prompt notice of any occurrence, event or condition in
connection with which Lessor may be entitled to indemnification hereunder. The
provisions of this Section 18 are in addition to, and not in limitation of, the
provisions of Section 17 hereof. Lessee's obligations under this Section 18
shall survive the expiration of or earlier termination of this Lease.

     19. Warranties Excluded. LESSOR, MAKES NO REPRESENTATION OR WARRANTY,
EXPRESS OR IMPLIED, AS TO ANY MATTER WHATSOEVER, INCLUDING WITHOUT LIMITATION
THE DESIGN OR CONDITION OF THE PLUNGER MOLD, ITS MERCHANTABILITY, DURABILITY,
CAPACITY, SUITABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE, THE QUALITY OF THE
MATERIAL OR WORKMANSHIP OF THE PLUNGER MOLD, OR THE CONFORMITY OF THE PLUNGER
MOLD TO PROVISIONS OR SPECIFICATIONS


                                      -9-


<PAGE>


OF ANY PURCHASE ORDER RELATING THERETO, OR PATENT INFRINGEMENT OR PATENT OR
LATENT DEFECTS, AND LESSOR HEREBY DISCLAIMS ANY AND ALL SUCH REPRESENTATIONS AND
WARRANTIES. LESSEE ACKNOWLEDGES THAT IT HAS LEASED THE PLUNGER MOLD BASED UPON
ITS OWN JUDGMENT AND EXPRESSLY DISCLAIMS ANY RELIANCE ON STATEMENTS MADE BY
LESSOR.

     20. Events of Default. An "Event of Default" shall occur hereunder if: (a)
Lessee fails to make any Rent or other payment under the Lease when due and such
failure continues for a period of five (5) days after notice of non-payment; (b)
Lessee violates any other provision of this Lease or document furnished to
Lessor in connection herewith and such violation shall continue unremedied for a
period of at least twenty (20) days after notice from Lessor; (c) Lessee shall
become or be adjudicated insolvent or bankrupt or makes an assignment for the
benefit of creditors or becomes unable or admits in writing its inability to pay
its debts as they become due, or a trustee, receiver or liquidator shall be
appointed for Lessee, or for a substantial part of its property, with or without
its consent, or bankruptcy, arrangement, reorganization, composition,
readjustment, liquidation, insolvency, dissolution or similar proceedings under
any present or future statute, law or regulation shall be instituted by or
against Lessee; or Lessee shall file an answer admitting the material
allegations of a petition filed against it in any such proceeding, or any
execution or writ or process shall be issued under any proceeding whereby any of
the Plunger Mold may be taken or restrained; or Lessee shall cease doing
business as a going concern; (d) any representation or warranty made by Lessee
herein or other document furnished Lessor under or pursuant to this Lease shall
be incorrect or incomplete at the time when made in any material respect; or (e)
a material adverse change shall occur in the financial condition, business
and/or prospects of the affairs of Lessee. Lessee shall promptly notify Lessor
of the occurrence of any Event of Default.

     21. Remedies. If one or more Events of Default shall have occurred, Lessor,
at its option, may (a) proceed by appropriate court action or actions, either at
law or in equity, to enforce performance by Lessee of the applicable covenants
hereunder or to recover damages for the breach thereof, including, without
limitation, net after-tax losses of federal, state and local income tax benefits
to which Lessor would otherwise be entitled as a result of owning the Plunger
Mold or leasing such Plunger Mold to Lessee; or (b) by notice to Lessee,
terminate this Lease and accelerate and demand payment of the entire unpaid
balance of the Rent (including all Rent which may then be due and payable) as
liquidated damages and not as a penalty, together with all damages, losses,
liabilities, claims and expenses including, without limitation, expenses
incurred in connection with the recovery, repair, repainting, return and
remarketing of the Plunger Mold or other exercise of Lessor's remedies hereunder
and reasonable out-of-pocket attorneys' fees which Lessor shall sustain in
connection with any Event of Default. No remedy referred to herein shall be
deemed exclusive, but all such remedies shall be cumulative and shall be in
addition to all other remedies in Lessor's favor existing under this Lease or
otherwise at law or in equity.


                                      -10-


<PAGE>


     22. Affirmative Covenant. At the request of Lessor, Lessee shall execute
and deliver to Lessor UCC-1 financing statements in favor of Lessor or any
Assignee in any jurisdiction where the Plunger Mold is or will be located.

     23. Late Charges. Any nonpayment of Rent or other amounts payable under the
Lease shall result in Lessee's obligation to promptly pay Lessor as additional
Rent on such overdue payment, for the period of time during which it is overdue
(without regard to any grace period), interest at a rate equal to the lesser of
(a) the prime lending rate as announced from time to time by Chase Manhattan
Bank plus 5%, or (b) the maximum rate of interest permitted by law.

     24. Lessor's Right to Perform for Lessee. If Lessee fails to duly and
promptly pay, perform or comply with any of its obligations, covenants or
agreements under this Lease, Lessor may itself pay, perform or comply with any
of such obligations, covenants or agreements for the account of Lessee without
thereby waiving any Event of Default. In such event, any amount paid or expense
incurred by Lessor in connection therewith shall immediately on demand, together
with interest at the rate provided in Section 23 hereof, be paid to Lessor as
additional Rent, and Lessee shall indemnify and defend Lessor against any
damage, loss, claim, liability or expense suffered or incurred by Lessor in
connection therewith.

     25. Notices.

     (a) Any notice, request, consent, demand or other communication given or
required to be given under this Lease shall be effective only if in writing and
shall be sent by one of the following means to the addressee at the address set
forth in Sections 25(b) below (or at such other address as shall be designated
in accordance with this Section 25, and shall be deemed conclusively to have
been given: (i) on the first business day following the day timely deposited
with an international or national overnight courier, with the cost of delivery
prepaid, assuming proof of delivery; (ii) on the third business day following
the day duly sent by certified or registered mail, postage prepaid and return
receipt requested; (iii) on the first business day after it is otherwise
actually delivered to the addressee by courier; or (iv) on the first business
day after the day it is duly sent by both confirmed facsimile transmission and
one of the forms provided in (i), (ii) or (iii) above, with the cost of
transmission prepaid.


                                      -11-


<PAGE>


     (b) The addresses and facsimile telephone numbers of the parties and those
persons receiving copies are as follows:

          To Lessor:       Univec, Inc.
                           999 Franklin Avenue
                           Garden City, New York 11530
                           Attention: Joel Schoenfeld
                           Facsimile No.: 516-739-3343
                           Telephone No.: 516-294-1000

          Copy to:         Sazer, Vaccaro & Prisco LLP
                           325 Wireless Boulevard
                           Hauppauge, New York 11788
                           Attention: Gary Sazer, Esq.
                           Facsimile No.: 516-273-9685
                           Telephone No.: 516-273-7171

          To Lessee:       Sherwood Medical Company
                           1915 Olive Street
                           St. Louis, Missouri 63103-1642
                           Attention: Vice President-- OEM Sales
                           Facsimile No.: (314) 241-0232
                           Telephone No.: (314) 621-7788

          Copy to:         Sherwood Medical Company
                           1915 Olive Street
                           St. Louis, Missouri 63103-1642
                           Attention: Corporate Counsel
                           Facsimile No.: (314) 241-5855
                           Telephone No.: (314) 621-7788

     26. Miscellaneous.

     (a) Lessee shall, upon Lessor's demand, promptly execute, acknowledge and
deliver any and all further documents, instruments and agreements as may be
reasonably required by Lessor and any Assignee and take any and all other action
requested by Lessor from time to time, for the purpose of fully effectuating the
intent and purposes of this Lease, and to protect the interests of Lessor, its
successors and assigns. Lessee also authorized Lessor to act on its behalf as
its attorney-in-fact to file financing statements with respect to this Lease and
the Plunger Mold by signing Lessee's name thereto.


                                      -12-


<PAGE>


     (b) Any provision of this Lease which is prohibited or not fully
enforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
only to the extent of such prohibition or unenforceability without otherwise
invalidating or diminishing Lessor's rights thereunder or under the remaining
provisions thereof in such jurisdiction, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

     (c) No term or provision of this Lease may be amended, altered, waived,
discharged or terminated except by an instrument in writing signed by a duly
authorized officer of the party against which the enforcement of the amendment,
alteration, waiver, discharge or termination is sought. No delay by either party
in exercising any right, power or remedy under this Lease shall constitute a
waiver, and any waiver by a party on any one occasion or for any one purpose
shall not be construed as a waiver on any future occasion or for any other
purpose.

     (d) This Lease shall be governed in all respects by, and construed in
accordance with, the laws (without giving effect to the principles governing
conflicts of laws) of the State of New York. The federal and state courts
located in New York County, New York, U.S.A., shall have exclusive jurisdiction
and venue over any and all actions and proceedings relating to or arising out of
this Lease and/or the Plunger Mold. Lessor and Lessee each hereby irrevocably
consent to the exclusive jurisdiction of such courts and waive any right they
may have to transfer or change the venue of any such action or proceeding.
Lessor and Lessee each agree that any summons or notice relating to any such
action or proceeding may be served on such party in the manner provided for the
giving of notices under Section 25 hereof.

     (e) All of the covenants and agreements of Lessee and Lessor contained in
this Lease shall survive the expiration or earlier termination hereof. Subject
to all of the terms and provisions of this Lease, all of the covenants,
conditions and obligations contained in this Lease shall be binding upon and
inure to the benefit of the respective successors and permitted assigns of
Lessor and Lessee. This Lease shall constitute the entire agreement of Lessor
and Lessee with respect to the lease of the Plunger Mold, and shall
automatically cancel and supersede any and all prior oral or written
understandings with respect thereto.

     (f) This Lease may be executed in any number of counterparts, each of
which, when so executed and delivered, shall be an original, but all such
counterparts taken together shall constitute one and the same instrument. The
headings in this Lease shall be for convenience of reference only and shall form
no part of this Lease.

     27. Lessee's Waivers: Limitation on Actions. To the fullest extent
permitted by applicable law, with respect to this Lease Lessee irrevocably
waives any and all: (a) rights it may otherwise have under Sections 2A-401 and
2A-402 of UCC 2A to suspend performance of any of its obligations under this
Lease, (b) rights and/or remedies it may otherwise have under Sections 2A-508
through 2A-522 of UCC 2A to: (i) cancel or repudiate this Lease, (ii) reject or


                                      -13-


<PAGE>


revoke acceptance of the Plunger Mold, (iii) recover damages from Lessor for
breach of warranty or for any other reason, (iv) deduct from the rental payments
all or any part of any claimed damages resulting from any default by Lessor
under this Lease, (v) "cover" by making a purchase or lease of other property in
substitution for property due from Lessor, (vi) recover from Lessor any general,
special, incidental or consequential damages, for any reason whatsoever, and
(vii) specific performance, replevin or the like for all or any part of the
Plunger Mold; and (c) rights now or hereafter conferred by any applicable
statute or otherwise under which Lessor may be required to sell, re-lease or
otherwise use or dispose of all or any part of the Plunger Mold in mitigation of
Lessor's damages as determined under this Lease or otherwise or which may
otherwise limit or modify any of Lessor's rights and remedies under this Lease
or otherwise.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed by their authorized representatives as of the date first above
written.


                                 UNIVEC, INC., Lessor



                                 By: /s/ Joel Schoenfeld
                                    -------------------------------------
                                    Name:
                                    Title: CEO



                                 SHERWOOD MEDICAL COMPANY

                                   Doing business as Sherwood-Davis & Geck, 
                                   Lessee



                                 By:
                                    -------------------------------------
                                    Name:
                                    Title:
                                    Address:
                                    Phone:





<PAGE>

                                  EXHIBIT 10.4
<PAGE>

                               PURCHASE AGREEMENT

AGREEMENT  dated as of June 27, 1996 by and  between  Univec,  Inc.,  a New York
corporation  having its  principal  office and place of business at 999 Franklin
Avenue, Garden City, NY 11530 ("Seller"), and Paramount Financial Corporation, a
Delaware  corporation  having an office  and place of  business  at One  Jericho
Plaza, Jericho, NY 11753 ("Buyer").

                                  WITNESSETH:

That in consideration of the mutual undertakings  herein contained,  the parties
agree as follows:

1. Sale.  Seller  agrees to sell and Buyer  agrees to  purchase  from Seller the
equipment  (the   "Equipment")   listed  on  Schedule  A  attached  hereto  (the
"Schedule") and incorporated herein by reference.

2. Purchase Price.  The purchase price of the Equipment shall be  $1,600,000.00,
which amount shall be paid upon Buyer's  receipt of (i) all documents  specified
herein  and  of  all  customary  documents  reasonably  requested  by  Buyer  in
connection with the transactions  contemplated  hereby and (ii) loan proceeds in
an amount not less than  $1,600,000.00 in connection with a non-recourse loan to
be made by Republic  National Bank of New York ("Republic") to Buyer (which loan
relates  to the  financing  of the  Equipment  and  the  Lease  (as  hereinafter
defined)).  Buyer shall not be obligated to make the purchase  hereunder  unless
and until Buyer receives the aforementioned loan proceeds.

3.  Delivery.  Buyer shall  accept  delivery of the  Equipment  at the  location
specified in the Schedule.

4.  Title.  Title  will be free  and  clear of all  liens,  leases,  claims  and
encumbrances  of any kind  except for the  rights of  Sherwood  Medical  Company
("Lessee") (a Delaware  corporation  doing business as Sherwood-Davis & Geck) as
lessee under  Equipment  Lease dated May 30, 1996  between  Seller as lessor and
Lessee as lessee (such  Equipment  Lease is called the "Lease").  Simultaneously
with the payment of the purchase price,  Seller shall deliver to Buyer a bill of
sale (in the form of exhibit A hereto)  for the  Equipment  (the "Bill of Sale")
transferring  good and  marketable  title thereto to Buyer free and clear of all
liens, leases,  claims and encumbrances of any kind other than the rights of the
Lessee under the Lease.  Simultaneously  herewith, Buyer and Seller are entering
into an  Assignment,  Assumption & Indemnity  Agreement in the form of Exhibit B
hereto (the "Assignment Agreement"),  pursuant to which (i) all rights of Seller
as lessor  under the Lease are being  assigned  to Buyer and (ii) all  rights of
Seller under the Bond (as hereinafter defined)


<PAGE>



are being assigned to Buyer. The term "Bond" means Bond No. 8145-4178 dated June
20, 1996 issued by Federal Insurance Company (as surety)  ("Federal") and Lessee
(as  principal)  which  insures  the  Lessee's   obligations  under  the  Lease.
Simultaneously  herewith,  Seller is delivering  to Buyer a conditional  bill of
sale for the Equipment (in the form of Exhibit C hereto).

5. Representations and Warranties.

5.1 Representations and warranties of Seller. Seller represents and warrants to,
and covenants and agrees with, Buyer as follows:

(a) On the date hereof (i) the Lease has been duly executed and delivered, is in
full force and  effect,  constitutes  the valid and binding  obligations  of the
Seller, as lessor, and the Lessee, as lessee, thereunder, is enforceable against
Seller  and the  Lessee in  accordance  with its terms  (subject  to  applicable
bankruptcy and insolvency laws and other laws of general  application  affecting
creditor's rights) and no defaults or conditions which, with the passage of time
or giving of notice or both, would constitute defaults,  exist thereunder by the
Lessee or by Seller,  (ii) there are no setoffs,  counterclaims,  or defenses on
the part of the Lessee to pay any  amounts  due under the Lease,  (iii) the Bond
has  been  duly  executed  and  delivered,  is in  full  force  and  effect  and
constitutes the valid and binding  agreement of Federal and Lessee,  enforceable
in accordance  with its terms  (subject to applicable  bankruptcy and insolvency
laws and other laws of general application  affecting  creditors' rights),  (iv)
the  Equipment  is  located  at the place  designated  in the  Schedule  and the
Equipment  has been  accepted  and  installed  under  the  Lease  and is in good
operating condition and repair, (v) Lessee has not prepaid any rentals due or to
become due under the Lease  (and  Lessee  has not made any  deposits)  and there
remains  unpaid and owing  under the firm  lease  term of the Lease the  monthly
rental  payments  set forth in the  Schedule,  and Buyer  shall be  entitled  to
receive  directly all of such  payments and all other monies  payable  under the
Lease (except for the June 1996 rental  payment and the July 1996 rental payment
which shall  belong to Seller) and (vi) the initial firm lease term of the lease
commenced on May 30, 1996 and expires on May 29, 2002.

(b) By the delivery of the Bill of Sale to Buyer and upon execution and delivery
of the  Assignment  Agreement,  Seller will convey to Buyer good and  marketable
title to the Equipment and the Lease (including,  without limitation,  the Bond)
free and clear of any and all leases,  liens, claims and encumbrances other than
the rights of the Lessee under the Lease.

(c) Seller is a  corporation  duly and validly  organized  and  existing in good
standing  under  the  laws of the  State of New  York  and has  full  power  and
authority  to own its  properties  and carry on its business in the places where
such properties are located and such business is conducted.

                                       2

<PAGE>




(d) Seller has the power and  authority to enter into,  execute and deliver this
Agreement,  the Bill of Sale, the Assignment Agreement and all other instruments
and documents  executed and  delivered  and/or  received,  or to be executed and
delivered and/or received,  in connection with the transactions  herein referred
to and to  carry  out the sale  and  transfer  of the  Equipment  and the  Lease
(including,   without  limitation  the  Bond)  to  Buyer  and  the  transactions
contemplated  hereunder and thereunder.  (This Agreement,  the Bill of Sale, the
Assignment   Agreement  and  all  such  other   instruments  and  documents  are
hereinafter  referred to collectively as the  "Documents").  There is no action,
suit or proceeding pending against Seller before or by any court, administrative
agency or other  governmental  authority which brings into question the validity
of, or might in any way impair, the execution, delivery or performance by Seller
of any Document. No approval of, or consent from, any governmental  authority is
required for the execution, delivery or performance by Seller of any Document.

(e) The execution and delivery of the Documents by Seller and the performance by
it of its obligations thereunder,  including, without limitation, the conveyance
of the Equipment and the Lease {including, without limitation, the Bond) and the
acceptance of the purchase price in exchange therefor, have been duly authorized
by all necessary  corporate and/or other action of Seller and do not contravene,
violate or conflict with (i) any provision of Seller's articles of incorporation
by-laws or other  organizational  documents or (ii) any law or any order,  writ,
injunction,  decree, rule or regulation of any court,  administrative  agency or
any other governmental authority (applicable to Seller or its assets).

(f) The execution and delivery of the Documents by Seller,  and the  performance
by  Seller  of  its  obligations  thereunder,   do  not  conflict  and  are  not
inconsistent  with, and will not result (with or without the giving of notice or
passage of time or both) in a breach of or  constitute  a default or require any
consent under or result in the creation of any lien,  charge or encumbrance upon
the  Equipment  or the Lease or the Bond  pursuant  to the  terms of any  credit
agreement,  indenture,  mortgage,  purchase agreement,  deed of trust,  security
agreement,  lease, guarantee or other instrument or agreement to which Seller is
a party or by which  Seller may be bound or to which it may be subject.  Without
limiting the  foregoing,  Seller is not subject to any  restriction or agreement
(including,  without limitation, the Lease) which, with or without the giving of
notice,  the passage of time or both,  prohibits  or would be  violated  by, the
execution,  delivery and  consummation  of the  Documents  and the  transactions
referred to therein.

(g) The Documents  constitute,  or when executed and delivered will  constitute,
the legal,  valid and binding  obligations  of Seller  enforceable in accordance
with their respective  terms,  subject,  however,  to applicable  bankruptcy and
insolvency laws

                                       3

<PAGE>




and  other  laws of  general  application  affecting  creditors'  rights  and to
judicial discretion to which equitable remedies are subject.

(h) All sales,  use,  property,  value added or other  taxes,  licenses,  tolls,
inspection or other fees,  bonds,  permits or certificates  which were or may be
required  to be paid or  obtained  in  connection  with the  acquisition  of the
Equipment by Seller or the leasing of the  Equipment to the Lessee have been, or
when due will promptly be, paid in full or obtained.

(i) Seller has  delivered to Buyer the one and only  original  counterpart  (the
only  counterpart  constituting  "chattel paper"  and marked  "Original") of the
Lease (and related documents thereto) and the one and only original of the Bond,
and Seller has  delivered  to Buyer an original (to the extent  available)  or a
true,  correct and complete  copy (if an original is not  available) of each and
every other document  delivered to or by Seller in connection  with the purchase
of the  Equipment by Seller and the leasing of the Equipment to Lessee under the
Lease. All  counterparts of the Lease,  other than the  aforementioned  original
counterpart being delivered to Buyer, are marked "Duplicate".

(j) Seller  hereby  assigns to Buyer (to the extent  assignable),  and agrees to
enforce (upon Buyer's written request and at Buyer's expense) for the benefit of
Buyer  (to  the  extent  not  assignable),   the  benefits  of  all  warranties,
representations, covenants and indemnities made to Seller by, or which Seller is
entitled to enforce  against,  any  predecessor in title to the Equipment or the
manufacturer  of the  Equipment.  Seller  shall not amend or modify the Lease or
waive any  provisions  thereof or cause a default  thereunder  or  exercise  any
rights thereunder.

(k)  EXCEPT  AS  SPECIFICALLY  SET  FORTH  IN  THIS  AGREEMENT,  THE  ASSIGNMENT
AGREEMENT, THE CONDITIONAL BILL OF SALE OR IN THE BILL OF SALE, THE EQUIPMENT IS
BEING SOLD "AS IS" AND "WHERE IS" AND SELLER DOES NOT WARRANT THE  EQUiPMENT  IN
ANY  RESPECT,  EITHER  EXPRESSLY  OR BY  IMPLICATION,  AND WITHOUT  LIMITING THE
GENERALITY OF THE FOREGOING,  SELLER EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF
MERCHANTABILITY,   FITNESS  OR  ADEQUACY  FOR  ANY  PURPOSE  OR  USE,   QUALITY,
PRODUCTIVENESS OR CAPACITY.

5.2  Representations  and  Warranties  of the Buyer.  The Buyer  represents  and
warrants to, and agrees with, the Seller as follows:

{a) Buyer is a  corporation  duly and  validly  organized  and  existing in good
standing under the laws of the State of its incorporation and has full power and
authority to own its properties and carry on its business where such  properties
are located and such business is conducted.

                                       4

<PAGE>



(b) Buyer has the power and  authority to enter into the  Documents and to carry
out the transactions contemplated thereunder.

(i) The execution and delivery of the Documents by Buyer, and the performance of
its obligations thereunder, have been duly authorized by all necessary corporate
and/or  other  action  of Buyer  and do not  violate  or  conflict  with (i) any
provision  of  Buyer's   certificate   of   incorporation,   by-laws  or  other
organizational  documents,  or (ii)  any  law or any  order,  writ,  injunction,
decree,  rule or  regulation  of any court,  administrative  agency or any other
governmental  authority (applicable to Buyer or its assets). There is no action,
suit or proceeding pending against Buyer before or by any court,  administrative
agency of other  governmental  authority which brings into question the validity
of, or might in any way impair, the execution,  delivery or performance by Buyer
of any Document. No approval of, or consent from, any governmental  authority is
required for the execution, delivery or performance by Buyer of any Document.

(d) The execution and delivery of the Documents by Buyer and the  performance by
Buyer  of  its  obligations   thereunder  do  not  conflict  with  and  are  not
inconsistent  with, and will not result (with or without the giving of notice or
passage of time or both) in a breach of or  constitute  a default or require any
consent under the terms of any credit agreement,  indenture,  mortgage, purchase
agreement,  deed  of  trust,  security  agreement,  lease,  guarantee  or  other
instrument  or  agreement  to which  Buyer is a party or by which  Buyer  may be
subject. Without limiting the foregoing, Buyer is not subject to any restriction
or agreement which, with or without the giving of notice, the passage of time or
both,   prohibits  or  would  be  violated  by,  the  execution,   delivery  and
consummation of the Documents and the transactions referred to therein.

(e) The Documents  constitute,  or when executed and delivered will  constitute,
the legal, valid and binding obligations of Buyer enforceable in accordance with
their  respective  terms,   subject,   however,  to  applicable  bankruptcy  and
insolvency  laws and other  laws of  general  application  affecting  creditors'
rights and to judicial discretion to which equitable remedies are subject.

6.  Indemnification.  Each of Seller  and  Buyer  will  indemnify  the other and
protect,  defend and hold it harmless  from and against any and all loss,  cost,
damage, injury or expense, including, without limitation,  reasonable attorneys'
fees and court costs,  wheresoever and howsoever arising,  which the indemnified
party or its subsidiaries or stockholders,  or any of its, or their,  directors,
officers,  agents,  employees,  stockholders or partners, may incur by reason of
any breach by the indemnifying party of any of its  representations,  covenants,
warranties or obligations set forth in the Documents. Seller

                                       5

<PAGE>



also hereby indemnifies and shall hold Buyer harmless against any loss sustained
or reasonable  expenses incurred by Buyer as the result of or arising out of the
imposition on the Equipment of any Federal or other tax lien or the  foreclosure
thereof  by virtue of the  failure to pay or  underpayment  by the Seller of the
Federal or other taxes payable by Seller.

7. Miscellaneous.

7.1  Survival.  The  covenants,  agreements,  indemnities,  representations  and
warranties made herein shall survive the execution and delivery of the Documents
and the consummation of the transactions described therein.

7.2 Successors and Assigns.  The rights and obligations of the parties hereunder
shall  inure to the  benefit  of,  and be  binding  and  enforceable  upon,  the
respective successors, assigns and transferees of either party.

7.3 Notices.  Any notice,  request or other communication to either party by the
other  hereunder  shall be given in  writing  and shall be  deemed  given on the
earlier of the same is (i) personally  delivered with receipt  acknowledged,  or
(ii) mailed by certified  mail,  return receipt  requested,  postage prepaid and
addressed  to the party for which it is intended at the address set forth at the
head of this  Agreement.  The place to which notices or copies of notices are to
be given to either  party  may be  changed  from  time to time by such  party by
written notice to the other party.

7.4 Governing Law. This Agreement shall be governed by and interpreted under the
laws of the state of New York  applicable to contracts  made and to be performed
therein without giving effect to the principles of conflict of laws thereof.

7.5 Captions.  Captions used herein are inserted for reference purposes only and
shall not affect the interpretation or construction of this Agreement.

7.6  Counterparts. This  Agreement may be executed in one or more  counterparts,
each of which  shall be  deemed an  original,  but all of which  together  shall
constitute one and the same agreement.

7.7 Amendments.  This Agreement may be amended or varied only by a document,  in
writing, of even or subsequent date hereof, executed by Buyer and Seller.

8. Further Assurances.  Each party hereto shall promptly execute and deliver all
such further  instruments and documents,  and promptly take such further action,
as may  reasonably  be  requested by the other party in order to fully carry out
the intent and  accomplish  the purposes of the Documents  and the  transactions
referred to therein.  Without  limiting the  foregoing,  Assignor shall promptly
execute and deliver, and cause

                                        6

<PAGE>




the Lessee to promptly execute and deliver,  (a) a Notice and  Acknowledgment of
Assignment (in form and substance  satisfactory  to Republic) and (b) such other
documents as Republic may reasonably request.

     IN WITNESS WHEREOF, the Buyer and Seller have executed this Agreement as of
the date first above written.

                                             Seller: Univec, Inc.

                                             By: /s/ Joel Schoenfeld
                                                 ----------------------------
                                             Name: Joel Schoenfeld
                                                   --------------------------
                                             Title: C.E.O.
                                                    -------------------------

                                             Buyer: Paramount Financial
                                                    Corporation

                                             By: /s/ Paul Vecker
                                                 ----------------------------
                                             Name: Paul Vecker
                                                   --------------------------
                                             Title: Sr. Vice President
                                                    -------------------------


                                       7
<PAGE>


                                   Schedule A



Equipment  Description:  128 cavity  plunger mold and mold base and mold inserts
and spare parts, Serial No. 1713

Remaining  Rental Payments:  34 consecutive  monthly rental payments each in the
amount of  $54,056.00,  due on July 1,  1996 and on the first day of each  month
thereafter.

Equipment Location:         Sherwood-Davis & Geck
                            1915 Olive Street
                            St. Louis, MO 63103





                                       8

<PAGE>

                                   Exhibit A

                                  Bill of Sale

     For the sum of $1.00 and other value  received,  receipt of which is hereby
acknowledged,  Univec,  Inc.  ("SELLER"),  a New  York  corporation  having  its
principal office and place of business at 999 Franklin  Avenue,  Garden City, NY
11530,  does  hereby  sell,  grant,  assign,  transfer  and convey to  Paramount
Financial  Corporation  ("BUYER"),  a Delaware  corporation having an office and
place of  business  at One  Jericho  Plaza,  Jericho,  NY 11753,  the  following
equipment ("Equipment"):

128 cavity  plunger mold and mold inserts and mold base and spare parts.  Serial
No. 1713.

     The SELLER  represents  and warrants that the SELLER is the lawful owner of
the Equipment, that the Equipment is free and clear of all liens, leases, claims
and other  encumbrances  (except  for the  lease of the  Equipment  pursuant  to
Equipment Lease dated May 30, 1996 between SELLER as lessor and Sherwood Medical
Company (a Delaware  corporation  doing  business as  Sherwood-Davis  & Geck) as
lessee) and that SELLER has a good right to sell,  grant,  assign,  transfer and
convey  the  Equipment  and will at its  expense,  warrant  and defend the title
thereto.   SELLER  reaffirms  as  of  the  date  hereof,  the   representations,
warranties,  covenants,  indemnities and assignments  made by SELLER to BUYER in
the Purchase  Agreement dated June 27, 1996 between SELLER and BUYER, as if such
representations,  warranties,  covenants,  indemnities and assignments  were set
forth herein in haec verba.

Date: June __, 1996

Univec, Inc.

By:________________________

Title:_____________________

Name:______________________

asas&inag


<PAGE>


                                   EXHIBIT B

                  ASSIGNMENT, ASSUMPTION & INDEMNITY AGREEMENT

AGREEMENT  dated as of June 27, 1996 by and  between  Univec,  Inc.,  a New York
corporation  having its  principal  office and place of business at 999 Franklin
Avenue, Garden City, NY 11530 ("Assignor"), and Paramount Financial Corporation,
a Delaware  corporation  having an office and place of  business  at One Jericho
Plaza, Jericho, NY 11753 ("Assignee").

                                   WITNESSETH:

     THAT in consideration of the mutual undertakings herein contained and other
good and valuable consideration, the receipt and sufficiency of which are hereby
mutually acknowledged, Assignor and Assignee agree as follows:

1. Assignment. Assignor hereby assigns and sets over unto Assignee, effective on
the date  hereof,  all of its rights,  title and  interest  in, under and to (i)
Equipment  Lease dated May 30,  1996  between  Assignor  as lessor and  Sherwood
Medical   Company   ("Lessee")  (a  Delaware   corporation   doing  business  as
Sherwood-Davis  & Geck) as lessee (such  Equipment  Lease is called the "Lease")
and (ii) any guaranty of Lessee's  obligations  thereunder,  including  (without
limitation)  the Bond (as hereinafter  defined),  except for the rental payments
due on June 1, 1996 and July 1, 1996 under the Lease. The term "Bond" means Bond
No.  8145-4178  dated June 20,  1996  issued by Federal  Insurance  Company  (as
surety) and Lessee (as principal) which insures the Lessee's  obligations  under
the  Lease.  The  Assignor  shall  not be liable  for  payment  of the  Lessee's
obligations  under  the  Lease,  except  that,  notwithstanding  the  foregoing,
Assignor shall be liable for any damages suffered by the Assignee as a result of
any breach or inaccuracy of any of the representations,  warranties,  covenants,
agreements or indemnities of Assignor in this Agreement,  the Purchase Agreement
(as hereinafter  defined) or any documents or instruments executed in connection
herewith or therewith.

     2. Obligations. Assignee hereby accepts such assignment, provided, however,
that  Assignor  (and not  Assignee)  shall  remain  responsible  to perform  all
obligations  of the lessor  under the Lease,  and  Assignor  (and not  Assignee)
agrees to perform same in accordance with the terms thereof.

     3. Representations of Assignor. Assignor hereby represents,  convenants and
warrants and Assignee may rely on the following:

          (a) All of the representations,  covenants and warranties contained in
     Section 5.1 of that certain purchase  agreement (the "Purchase  Agreement")
     dated June 27, 1996  between  Assignor as Seller and  Assignee as Buyer are
     incorporated  herein by reference  with the same force and effect as if set
     forth herein in full.

<PAGE>


          (b) Assignor is assigning all right,  title and interest in, under and
     to the Lease and the Bond to Assignee, free and clear of any and all liens,
     claims or encumbrances  {except for the rental payments due on June 1, 1996
     and July 1, 1996 under the Lease).

     4. Representations of Assignee. Assignee hereby represents,  covenants and
warrants and Assignor may rely on the following:

     All of the  representations,  covenants and warranties contained in Section
5.2 of the Purchase Agreement are incorporated herein by reference with the same
force and effect as if set forth herein in full.

5. MISCELLANEOUS.

          (a) Survival. All representations,  warranties,  covenants, agreements
     and indemnities  made by Assignor and Assignee shall survive the execution,
     delivery and performance of this Agreement and all other documents executed
     in connection herewith.

          (b)  Successors  and  Assigns.   This  Agreement  and  all  covenants,
     representations, warranties, indemnities and agreements contained herein as
     well as all  other  documents  executed  in  connection  herewith  shall be
     binding  upon and inure to the  benefit  of the  parties  hereto  and their
     respective successors and assigns.

          (c) Indemnification.

               (i) Assignor shall indemnify and hold Assignee  harmless from and
          against any and all loss, cost, damage,  injury or expense (including,
          without  limitation,  court  costs  and  reasonable  attorneys'  fees)
          wheresoever  and howsoever  arising which Assignee may incur by reason
          of any breach by Assignor of any of its  warranties,  representations,
          covenants,  agreements  or  obligations  set  forth  herein  or in any
          documents executed in connection herewith.

               (ii) Assignee shall indemnify and hold Assignor harmless from and
          against any and all loss, cost, damage,  injury or expense (including,
          without  limitation,  court  costs  and  reasonable  attorneys'  fees)
          wheresoever  and howsoever  arising which Assignor may incur by reason
          of any breach by Assignee of any of its  warranties,  representations,
          covenants,  agreements  or  obligations  set  forth  herein  or in any
          documents executed in connection herewith.


<PAGE>




               (d) Titles.  The titles  appearing in this  Agreement  and in any
          other  documents  relating to this  transaction are inserted only as a
          matter of  convenience  and in no way define,  limit or  describe  the
          scope or intent  hereof nor in any way affect  this  Agreement  or any
          other documents relating to this transaction.

               (e) Further Instruments.  The parties hereto agree to execute and
          deliver,  or  cause  to  be  executed  and  delivered,   such  further
          instruments  or  documents  and to take  such  other  action as may be
          required  to  carry  out  effectively  the  transactions  contemplated
          herein.

     IN WITNESS WHEREOF, and intending to be legally bound hereby,  Assignor and
Assignee  have caused this  Agreement to be executed and do each hereby  warrant
and represent that their respective  signatories  whose signatures  appear below
have been and are on the date of this agreement duly authorized by all necessary
and appropriate action to execute this Agreement.

ASSIGNEE:                                      ASSIGNOR:
Paramount Financial                            Univec, Inc.
Corporation
By:___________________________                 By:__________________________

Title:________________________                 Title:_______________________

Name:_________________________                 Name:________________________

asas&inag


<PAGE>

                                    Exhibit C

                            Conditional Bill of Sale
                      (Where payment of the purchase price
                      has not been received and a purchase
                      money security interest is reserved)

     For the sum of $1.00 and other value  received,  receipt of which is hereby
acknowledged,  Univec,  Inc  ("SELLER"),  a  New  York  corporation  having  its
principal office and place of business at 999 Franklin  Avenue,  Garden City, NY
11530,  does  hereby  sell,  grant,  assign,  transfer  and convey to  Paramount
Financial  Corporation  ("BUYER"),  a Delaware  corporation having an office and
place of  business  at One  Jericho  Plaza,  Jericho,  NY 11753,  the  following
equipment ("Equipment"):

128 cavity  plunger mold and mold inserts and mold base and spare parts.  Serial
No. 1713.

     The SELLER  represents  and warrants that the SELLER is the lawful owner of
the Equipment, that the Equipment is free and clear of all liens, leases, claims
and other  encumbrances  (except  for the  lease of the  Equipment  pursuant  to
Equipment Lease dated May 30, 1996 between SELLER as lessor and Sherwood Medical
Company (a Delaware  corporation  doing  business as  Sherwood-Davis  & Geck) as
lessee  and that SELLER has a good right to sell,  grant,  assign,  transfer and
convey  the  Equipment  and will at its  expense,  warrant  and defend the title
thereto.   SELLER  reaffirms  as  of  the  date  hereof,  the   representations,
warranties,  covenants,  indemnities and assignments  made by SELLER to BUYER in
the Purchase  Agreement  dated June _, 1996 between SELLER and BUYER, as if such
representations,  warranties,  covenants,  indemnities and assignments  were set
forth herein in haec verba.  Notwithstanding  the  foregoing,  SELLER  expressly
reserves a purchase  money  security  interest  in the  Equipment  to secure the
payment of the balance of the  purchase  price of the  Equipment  (such  balance
being  $1,597,763.00).  Upon  receipt  by  SELLER  of such  $1,597,763.00,  such
purchase   money  security   interest  shall  be  satisfied  and   automatically
terminated.

Date:  June __, 1996

Univec, Inc.

By: __________________________

Title:________________________

Name:_________________________


<PAGE>



                            Conditional Bill of Sale
                      (Where payment of the purchase price
                      has not been received and a purchase
                      money security interest is reserved)

     For the sum of $1.00 and other value  received,  receipt of which is hereby
acknowledged,  Univec,  Inc  ("SELLER"),  a  New  York  corporation  having  its
principal office and place of business at 999 Franklin  Avenue,  Garden City, NY
11530,  does  hereby  sell,  grant,  assign,  transfer  and convey to  Paramount
Financial  Corporation  ("BUYER"),  a Delaware  corporation having an office and
place of  business  at One  Jericho  Plaza,  Jericho,  NY 11753,  the  following
equipment ("Equipment"):

128 cavity  plunger mold and mold inserts and mold base and spare parts.  Serial
No. 1713.

     The SELLER  represents  and warrants that the SELLER is the lawful owner of
the Equipment, that the Equipment is free and clear of all liens, leases, claims
and other  encumbrances  (except  for the  lease of the  Equipment  pursuant  to
Equipment Lease dated May 30, 1996 between SELLER as lessor and Sherwood Medical
Company (a Delaware  corporation  doing  business as  Sherwood-Davis  & Geck) as
lessee  and that SELLER has a good right to sell,  grant,  assign,  transfer and
convey  the  Equipment  and will at its  expense,  warrant  and defend the title
thereto.  SELLER reaffirms of the date hereof, the representations,  warranties,
covenants,  indemnities and assignments  made by SELLER to BUYER in the Purchase
Agreement   dated  June  27,  1996  between   SELLER  and  BUYER,   as  if  such
representations,  warranties,  covenants,  indemnities and assignments  were set
forth herein in haec verba.  Notwithstanding  the  foregoing,  SELLER  expressly
reserves a purchase  money  security  interest  in the  Equipment  to secure the
payment of the balance of the  purchase  price of the  Equipment  (such  balance
being  $1,600,000.00).  Upon  receipt  by  SELLER  of such  $1,600,000.00,  such
purchase   money  security   interest  shall  be  satisfied  and   automatically
terminated.

Date:  June __, 1996

Univec, Inc.

By: /s/ Joel Schoenfeld
    --------------------------------

Title: C.E.O.
       -----------------------------

Name: Joel Schoenfeld
      ------------------------------


<PAGE>


                             [LOGO] paraMounT

Paramount
Financial
Corporation
                                                        July 1, 1996


Univec, Inc.
999 Franklin Avenue
Garden City, NY 11530

Gentlemen:

     Reference  is made to (i) the Purchase  Agreement  dated June 27, 1996 (the
"Purchase  Agreement")  between Univec,  Inc.  ("Univec") s Seller and Paramount
Financial  Corporation  ("Paramount")  as Buyer and (ii) a  related  Assignment,
Assumption & Indemnity  Agreement (the  "Assignment  Agreement")  dated June 27,
1996  between  Univec as Assignor and  Paramount  as  Assignee.  Pursuant to the
Purchase  Agreement,  Univec is selling to Paramount 128 cavity plunger mold and
mold base and mold inserts and spare parts (serial no. 1713) (the  "Equipment").
Pursuant to the Assignment Agreement,  Univec is assigning the Lease (as defined
in the Purchase Agreement) to Paramount.

     Paramount  will be  financing  the  Equipment  and the Lease with  Republic
National Bank of New York (the "Bank"). In connection therewith,  Paramount will
be granting to the Bank a lien on, among other  things,  the  Equipment  and the
Lease.  Upon the  satisfaction  and  termination  of such  lien  (and  Paramount
receiving confirmation thereof from the Bank), Paramount will transfer to Univec
(for the sum of $1.00)  Paramount's  interest in the Equipment and in the Lease,
without representation or warranty of Paramount.

One Jericho Plaza
Jericho, NY 11750
516-938-3400
516-938-3995 fax
- -----------------
http:/www.pramountfin.com

                                        Very truly yours,
                              
                                        PARAMOUNT FINANCIAL CORPORATION

                                        By: /s/ Paul Vecker
                                            ----------------------------

                                        Title: Senior Vice President
                                               -------------------------

                                        Name: PAUL VECKER
                                              --------------------------





<PAGE>




                                  EXHIBIT 10.5








<PAGE>



                            MANUFACTURING AGREEMENT


                                     Between

                          HARMAC MEDICAL PRODUCTS, INC.

                                        &

                                  UNIVEC, INC.

Effective December 4, 1996, Harmac Medical Products, Inc., 2201 Bailey Avenue,
Buffalo, NY 14211-1797 and UNIVEC, Inc., 999 Franklin Avenue, Garden City, NJ
11530 agree to enter into a MANUFACTURING AGREEMENT whereby Harmac will assemble
and package a single use syringe for UNIVEC. 

1.   Length of Agreement:

     The length of the agreement is December 4, 1996 through December 31, 1997.
     Each year thereafter the agreement is automatically renewable for an
     additional calendar year unless either party notifies the other in writing
     within ninety (90) days of the end of the agreement period that it wishes
     to terminate the agreement.

2.   Pricing

     A.   Price for initial order (8,857,400 units; PO# 01318) is estimated at
                 per thousand finished units. The price is made up of two
          components:

          o Packaging Materials                      *   per thousand units

          o Value Added Component                    *   per thousand units

          This price is subject to modification based on a review of the
          assumptions relating to throughput, labor requirements and scrap costs
          described in 2B., to be determined when the assembly machine is
          completed and qualified prior to starting production of the initial
          order.


     B.   The estimated price of   *   is based upon the following assumptions:

          o    All components except packaging materials are to be supplied by
               UNIVEC and will meet agreed upon Product Specifications. Harmac
               will be notified in advance of any planned changes in
               specifications.

          o    Packaging material costs were based on estimates made by UNIVEC.

          o    Assembly and packaging labor requirements were based on estimates
               provided by UNIVEC as follows:

               1.   Assembly machine requires two (2) operators per 8-hour shift
                    yielding 14,040 units per hour with a 90% efficiency factor.

               2.   Packaging machine requires four (4) operators per 8-hour
                    shift yielding 13,500 units per hour with a 90% efficiency
                    factor.

               3.   Two (2) material handlers will be required per shift.

          o    Production scrap is estimated at 2.5% of Harmac's cost.

          o    UNIVEC will be responsible for all costs associated with outside
               storage and handling of components and finished products.


- ---------
* Confidential treatment has been sought by the Company for the omitted 
  portions and such material has been filed separately with the Commission.


                                     
1


<PAGE>


MANUFACTURING AGREEMENT                                                  Page 2
Harmac Medical Products, Inc.
& UNIVEC, Inc.



     C.   If necessary, Harmac will revise pricing after the initial order for
          deliveries made during the balance of the agreement period, subject to
          approval by UNIVEC, to reflect actual costs incurred during production
          of the initial order, including packaging material costs. If Harmac
          revises the pricing for the balance of the agreement period, it will
          provide UNIVEC a letter explaining the increase or decrease in terms
          of assumptions affecting packaging materials and value added component
          (2A and 2B). In the event UNIVEC does not approve of price revisions,
          this agreement may be terminated by Harmac after completion of the
          initial order.

          After the first agreement period, prices will be adjusted annually by
          mutual consent of both parties.

3.   Payment Terms

     A.   For the initial order, UNIVEC will advance Harmac an amount equal to
          35% of the value of Harmac purchase commitments for Packaging
          Materials; advances to be made at the time Harmac makes purchase
          commitments. In addition UNIVEC will advance Harmac an amount equal to
          35% of the Value Added Component (   *   per thousand units) of the
          first month's shipments; advance shall be no less than $25,000 and is
          to be made prior to the first shipment of product.

     B.   Terms of payment for product shall be net 30 days after the date of
          invoice. The maximum amount of accounts receivable from UNIVEC at any
          time shall be no greater than $50,000. Prices do not include sales,
          use, excise or similar taxes or tariffs or duties, all of which shall
          be the responsibility of UNIVEC.

     C.   Products shall be delivered F.O.B. Harmac plant of manufacture.

4.   Limited Warranty and Disclaimer

     A.   Harmac warrants that all Products supplied will meet the Product
          Specifications for such products as provided in writing by UNIVEC and
          agreed to by Harmac.

          Additionally, Harmac warrants that procedures as documented by Harmac
          Quality Assurance Specifications will be executed and that such
          execution can be evidenced to UNIVEC's reasonable satisfaction.





- ---------
* Confidential treatment has been sought by the Company for the omitted 
  portions and such material has been filed separately with the Commission.



<PAGE>



MANUFACTURING AGREEMENT                                                   Page 3
Harmac Medical Products, Inc.
& UNIVEC, Inc



     B.   The foregoing warranty is in lieu of all other warranties, expressed
          or implied, AND NO OTHER WARRANTIES ARE GRANTED INCLUDING, WITHOUT
          LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
          PARTICULAR PURPOSE. If the Product does not conform to the warranty
          set forth herein, Harmac's sole liability and obligation shall be to
          replace the Product or refund the purchase price as Harmac may elect.
          Harmac's liability under the above warranty with respect to the
          Products or their use (including liability for negligence or
          otherwise) is limited exclusively to the remedies provided above and
          no other right or remedy will be available to UNIVEC or any other
          person. Harmac will in no event be liable to any person for any
          special, incidental or consequential damages to person or property
          arising from or under the above warranty or otherwise from or under
          the agreement, except to the extent mandated by applicable state law.

     C.   UNIVEC shall have a period of thirty (30) days from the date of
          receipt to inspect and reject any shipment of Products on the grounds
          that it does not conform with the Product Specifications, provided
          UNIVEC confirms such non-compliance through generally acceptable
          quality control procedures. UNIVEC shall have the right to return any
          Product for which non-conformance to Product Specifications has been
          confirmed and receive, at its option, credit, replacement or refund.
          Products returned for failure to conform to the Specifications will
          not be accepted for credit unless the Products are returned in
          accordance with Harmac's instructions accompanied by an explanation of
          the nature of the failure that is satisfactory to Harmac.

5.   Confidentiality

     Harmac will keep confidential all information related to UNIVEC'S patents
     and manufacturing processes. This information includes knowledge discovered
     while implementing or providing manufacturing services to UNIVEC. UNIVEC
     also agrees to keep confidential all information and knowledge related to
     Harmac's manufacturing processes.

6.   Documentation

     All documentation relating to UNIVEC'S patents and manufacturing processes
     shall become the property of UNIVEC regardless of who produces the
     documentation.


<PAGE>


MANUFACTURING AGREEMENT                                                   Page 4
Harmac Medical Products, Inc.
& UNIVEC, Inc

7.   Insurance

     Both parties shall maintain adequate insurance coverage for workers'
     compensation, property, casualty and product liability. Policies will be
     available for inspection upon request. Certificates of insurance will be
     provided upon request and both parties agree to notify each other in the
     event of changes in coverage.

8.   UNIVEC Equipment

     Harmac will be responsible for both routine and preventative maintenance on
     equipment owned by UNIVEC and used by Harmac. UNIVEC will be responsible
     for costs associated with any design flaws in equipment and with normal
     wear and tear on equipment.

9.   Capacity

     Harmac will provide sufficient labor and floor space for one syringe line
     for the length of the agreement. A syringe line consists of a clip
     manufacturing station, an assembly station and a packaging station. 

     UNIVEC will keep Harmac advised of plans to expand its assembly and
     packaging capacity by adding new syringe lines. UNIVEC shall provide Harmac
     with the right of first refusal to manage additional syringe lines and
     Harmac will respond within a reasonable time with its intentions to provide
     sufficient capacity to handle additional lines.

10.  Right to Inspect

     Harmac shall permit UNIVEC or its designee the right as reasonable
     requested to enter the manufacturing and storage facilities of Harmac
     during regular business hours to inspect and spot check Products, goods
     tools and molds, in order to confirm Harmac's compliance with the terms of
     this Agreement. Harmac shall make available an authorized representative of
     its organization to facilitate UNIVEC's exercise of the foregoing
     inspection rights.


<PAGE>


 
MANUFACTURING AGREEMENT                                                   Page 5
Harmac Medical Products, Inc.
& UNIVEC, Inc.

11.  Termination

     A.   Right to Termination. In the event that either party breached, in any
          material respects, any of the terms of this Agreement or defaults in
          the performance of any of its duties or obligations hereunder, in any
          material respects, and such breach or default is not remedied within
          sixty (60) days after delivery of written notice of such breach or
          default, the other party may immediately terminate this Agreement by
          giving written notice of termination. In the event of the liquidation,
          bankruptcy, proceedings under a debtor's relief law, inability to meet
          debts as they mature or insolvency of either party, or in the event
          that either party's business or assets or any part thereof are seized
          or expropriated by judicial or governmental process, this agreement
          shall automatically terminate.

     B.   Effect of Termination

          Termination of this Agreement shall not relieve either party of any of
          its obligations which have matured as of the date of termination. Upon
          expiration or termination of this Agreement, all tooling, equipment,
          molds and/or other material owned by UNIVEC shall be crated and
          shipped to UNIVEC promptly as directed by UNIVEC and at UNIVEC's
          expense. In addition, all amounts owed to Harmac by UNIVEC will become
          due and payable immediately upon termination of the Agreement.

12.  Other Terms

     The Standard Terms and Conditions of Sale stated on the attached invoice
     shall apply to sales made pursuant to this Agreement. In the event of any
     conflict between the terms of this Agreement and such invoice, the terms of
     this Agreement shall control.

AGREED TO:

Harmac Medical Products, Inc.                  UNIVEC, Inc.

/s/ David L. Benton                            /s/ David Chabut

David L. Benton                                David Chabut
Chief Financial Officer                        Chief Financial Officer     
Date: 12/4/96                                  Date: 1/7/97




<PAGE>

                              EMPLOYMENT AGREEMENT

     AGREEMENT  dated as of October 15, 1996  between  UNIVEC,  Inc., a Delaware
corporation (the "Company"), having its principal office at 999 Franklin Avenue,
Garden City, New York 11530,  and David Chabut,  an individual (the  "Employee")
residing at 50 Prince Street, Apartment No. 22, New York, New York 10012.

     WHEREAS,  the Employee has been employed by the Company as Chief  Financial
Officer since October 1995;

     WHEREAS, the Company desires to continue the employment of the Employee and
Employee  agrees to continue  his  employment  with the Company on the terms and
conditions herein provided;

     NOW THEREFORE,  in consideration of the premises and the mutual  agreements
herein set forth, the parties hereby agree as follows:

     1. Employment and Duties.  During the term of this Agreement,  the Employee
shall serve as the Company's Chief Financial Officer, and in such capacity shall
be the principal  financial and accounting officer of the Company,  and Employee
shall perform such other duties  consistent with his position as may be assigned
to him from time to time by the Company's  Chief Executive  Officer,  to whom he
shall report.

     2.  Term.  Subject  to the  termination  provisions  of  Section  5 hereof,
Employee's  employment by the Company  hereunder is for a term commencing on the
date hereof and ending on September 30, 1997 (the "Employment Term").


<PAGE>


     3. Compensation.

     (a) Base Salary. During the Employment Term, the Company shall pay the
Employee for his services hereunder at a base salary of $120,000 per annum,
inclusive of health benefits. The base salary (after deduction for health
insurance premiums) shall be paid to the Employee in appropriate installments in
accordance with the Company's usual and customary payroll practices for its
executive officers.

     (b) Stock Option. As an inducement to his entering into this Agreement, the
Company agrees to recommend to the Board of Directors that the Company grant the
Employee incentive stock options to purchase 20,513 shares of Common Stock under
a stock option plan to be adopted by the Company, (the "Plan") at an exercise
price of $3.50 per share, which options may be exercised during the five year
period following the date of grant, or the earlier termination of his employment
with the Company in accordance with the provisions of the Plan.

     4.  Benefits.  Employee  shall be  entitled to  participate  in any and all
benefit  plans of the  Company  made  available  to  executive  officers  of the
Company.

     5.  Reimbursement.  During the Employment Term, the Company shall reimburse
the Employee for all reasonable  and necessary  business  expenses  incurred and
paid directly by him in the performance of his duties hereunder, upon submission
to the Company of reasonably  detailed expense reports and appropriate  vouchers
and/or  receipts  prepared in  accordance  with the  applicable  provisions  and
regulations of the Internal Revenue Code of 1986, as amended.

     6.  Termination.  Notwithstanding  any  provision of this  Agreement to the
contrary,  the  Employee's  employment  hereunder  shall be  subject  to earlier
termination as follows:


                                      -2-
<PAGE>


     (a) Death. This Agreement shall terminate immediately upon the death of the
Employee.

     (b) Cause. The Company may terminate Employee's employment hereunder for
"cause" (as hereinafter defined) immediately upon written notice of termination
to the Employee. For purposes of this Paragraph 6(b), "cause" means: (i) willful
and gross misconduct with respect to the business or affairs of the Company;
(ii) willful and gross neglect of duties or willful and gross failure to act
which adversely affects the business or affairs of the Company; (iii) gross
negligence in the performance of the Employee's duties hereunder; (iv) fraud,
embezzlement or criminal conduct (other than misdemeanors and motor vehicle
related incidents), whether or not directed against the Company; or (v) failure
of Employee to cure or remedy any alleged violation of Employee's obligations
under Paragraphs 7, 8, 9 and 10 of this Agreement after ten (10) days prior
written notice from the Company.

     (c) Right to Compensation Upon Termination. Except as otherwise
specifically provided herein or as accrued for services performed through the
date of termination, all of Employee's rights to compensation hereunder shall
cease to exist effective upon the date of termination.
lj
     7. Developments. The Employee agrees promptly to disclose in writing to the
Company any invention or discovery  made by him during his  employment  with the
Company,  whether  during  or  after  working  hours,  that  relates  to (i) any
disposable  medical  devices  for drug  delivery,  including  but not limited to
hypodermic needles,  (ii) inventions  developed for the Company through projects
participated  in by Employee and (iii)  processes,  including  equipment used to
produce items covered by clauses (i) and (ii) (the items  referred to in clauses
(i), (ii) and


                                      -3-
<PAGE>


(iii) being hereinafter referred to collectively as "Covered  Inventions"),  and
such inventions and discoveries  shall be the Company's sole property.  Upon the
Company's request, whether during or after the term of his employment,  Employee
shall execute and assign to the Company all  applications for letters patent and
copyrights  of the United  States and such foreign  countries as the Company may
designate relating to Covered Inventions, and Employee shall execute and deliver
to the Company such other  instruments as the Company deems necessary to vest in
the Company the sole ownership of all exclusive rights in and to such inventions
and  discoveries,  as well as the  patents  and/or  copyrights.  If  services in
connection  with  applications  for patents  and/or  copyrights are performed by
Employee at the Company's  request after the termination of his employment,  the
Company shall pay him reasonable  compensation for such services  rendered after
termination of this Agreement.

     8.  Non-Competition.  During the Employment Term and for a period of twelve
(12)  months  after  the  termination  of this  Agreement,  however  occasioned,
Employee shall not within the United States,  Canada,  Mexico or Japan, directly
or indirectly,  as principal,  agent,  stockholder,  joint  venturer,  investor,
employee,  consultant,  officer, director, partner, adviser, guarantor or in any
other  capacity,  render  services or provide  advice  relating to, or otherwise
engage in or assist others in engaging in, any Competitive  Business,  or own or
control  any  interest  in any  entity  which  is so  engaged.  As used  herein,
"Competitive  Business"  means  the  design,  manufacture,  marketing,  sale  or
distribution  of  any  Covered  Inventions.  Anything  to  the  contrary  in the
foregoing notwithstanding,  Employee may own, beneficially or legally, up to one
percent (1%) of the outstanding securities of any organization  registered under
Section 12 of the  Securities  Exchange  Act of 1934,  as amended,  or which are
otherwise publicly traded.


                                      -4-
<PAGE>


     9.  Non-Solicitation.  The Employee agrees that he will not during the term
of this Agreement and for a period of one (1) year following the  termination of
his employment with the Company for any reason, directly or indirectly,  solicit
or contact any employee of the Company with a view to encouraging  such employee
to leave the employ of the Company for the purpose of being hired by him, or any
employer affiliated with him, or any competitor of the Company.

     10. Confidentiality.  Executive agrees that he will not, during the term of
this  Agreement  and  thereafter,  use  or  disclose  to any  individual,  firm,
corporation,  partnership,  business trust, or other business entity (any of the
foregoing  being  hereinafter  referred to as a "Person")  any  confidential  or
proprietary information of the Company for any reason or purpose whatsoever, nor
shall he make use of any such  confidential  or proprietary  information for his
own purpose or for the benefit of any Person other than the  Company,  including
but not limited to any and all patents (issued or pending),  designs,  drawings,
blueprints, manufacturing processes, specifications, test data, graphics, charts
and all other  technical  information,  currently in  existence or  subsequently
developed,  relating to the Company's  research and  development  activities and
marketing  strategy,  or information  relating to the Company's  costs,  pricing
practices, customer lists or financial data; except that nothing herein shall be
construed  to  prohibit  him  from  complying  with  legal  process  or using or
disclosing such  information if it shall have become public knowledge other than
by or as a result  of  disclosure  by a Person  not  having a right to make such
disclosure.


                                      -5-
<PAGE>


     11.  Specific  Performance.  Employee  acknowledges  that the covenants set
forth  in  Paragraphs  7,  8, 9 and 10 are  reasonable  and  necessary  for  the
protection of the Company and that his  violation of any of the such  provisions
shall cause the Company  immediate  and  irreparable  harm and he agrees that in
such event,  an  injunction  restraining  him from such  violation or threatened
violations may be entered against him in addition to any other remedy  available
to the Company.  Employee waives any right which he may otherwise have to assert
in any such proceeding that the Company has an adequate remedy at law.

     12. Assignment. This Agreement shall be binding and inure to the benefit of
the Company, its successors and permitted assigns and to the Employee, his heirs
and personal  representatives.  However,  neither this  Agreement nor any of the
rights of the parties  hereunder may be  transferred or assigned by either party
hereto,  except that if the Company merges or consolidates with or into or sells
or otherwise transfers substantially all its assets to another corporation which
assumes the Company's  obligations under this Agreement,  the Company may assign
its rights  hereunder  to that  corporation.  Any other  attempted  transfer  or
assignment  in  violation  of this  paragraph  shall  be void.  Since  this is a
contract  for  personal  services,  only  the  Employee  is  deemed  capable  of
performing the services contemplated hereunder.

     13. Waiver.  The failure of a party to insist upon strict  adherence to any
term of this  Agreement on any occasion shall not be considered a waiver thereof
or deprive that party of the right thereafter to insist upon strict adherence to
that term or any other term of this  Agreement.  Any waiver of any breach of any
provision of this Agreement shall not constitute a waiver of any other breach of
such provision or any other provision hereof.


                                      -6-
<PAGE>


     14. Notices. Any demand, notice or other communication under this Agreement
shall be in  writing  and  shall be  deemed  duly  given,  and  received  by the
addressee  at the  address  stated  above (or at such  other  address  as may be
specified  by a party in a  written  notice  delivered  in  accordance  with the
provisions  of this  Paragraph)  upon receipt,  duly  evidenced if (i) mailed by
certified or registered  mail,  return receipt  requested,  with postage prepaid
(ii)  deposited  with a  recognized  overnight  courier  service such as Federal
Express,  UPS or Express Mail, (iii) by hand delivery,  or (iv) upon the receipt
of actual written notice.

     15. Indemnification. Employee shall be entitled throughout the term of this
Agreement  and  thereafter  to  indemnification  in  respect  of any  actions or
omissions as an officer of the Company (or any  successor  pursuant to Paragraph
11 hereof) to the fullest extent permitted by the Delaware  General  Corporation
Law or other applicable law.

     16. Entire  Agreement.  This  Agreement  constitutes  the entire  agreement
between the parties as of the date hereof with respect to Employee's  employment
by the  Company,  superseding  all prior or  contemporaneous  understandings  or
agreements,  oral or  written.  This  Agreement  may not be modified or amended,
except by subsequent written agreement of the parties which specifically  states
that it is  intended  to be a  modification,  amendment  or  supplement  to this
Agreement,  and is signed by all of the parties hereto.  No course of dealing or
custom shall be referred to as modifying any of the terms and conditions of this
Agreement.

     17.  Governing Law. This  Agreement  shall be governed by, and construed in
accordance  with, the laws of the State of New York applicable to contracts made
and to be performed wholly within that State, and any action, suit or proceeding
which  shall be  permitted  by this  Agreement,  or by action  of law,  shall be
commenced in any court having jurisdiction in


                                      -7-
<PAGE>


New York  County,  or in the  United  States  District  Court  for the  Southern
District of New York,  and the parties  hereto  hereby  waive any  objection  to
jurisdiction or venue in any such action,  suit or proceeding  commenced in such
courts.

     18.  Arbitration.  Except as specifically  provided in Paragraph 11 of this
Agreement,  any and all claims,  disputes  and other  matters in  question  with
respect  to,  arising  out of,  under  or in  connection  with  this  Agreement,
including  without  limitation,  the validity,  interpretation,  performance and
breach hereof, or the rights and privileges provided by, or responsibilities and
obligations under this Agreement, shall be finally decided by arbitration in the
City of New York before three (3)  arbitrators  in accordance  with the Rules of
the American Arbitration Association then in effect, unless the parties mutually
agree otherwise.  This Agreement to arbitrate shall be specifically  enforceable
under the  prevailing  arbitration  law. The award  rendered by the  arbitrators
shall  be  final,  and  judgment  may be  entered  upon  it in  accordance  with
applicable law in any court having jurisdiction  thereof. The parties agree that
the arbitrators  will have full authority to award the costs of the arbitration,
including attorneys' fees.

     19.  Severability.  In the event any  provision  of this  Agreement is held
invalid or  unenforceable by any court of competent  jurisdiction,  such holding
shall not invalidate or render  unenforceable any other provision  hereof.  Such
invalid or unenforceable  provision shall be amended,  if possible,  in order to
accomplish the purposes of this Agreement.


                                      -8-
<PAGE>


     20.  Headings.  The headings of the various sections of this Agreement have
been inserted for  convenience of reference only and shall not be deemed to be a
part of this Agreement.

     IN WITNESS  WHEREOF,  the parties have executed this  Agreement on the date
first above written.

                                          UNIVEC, INC.

                                           By:/s/ Joel Schoenfeld
                                              ---------------------------------
                                               Joel Schoenfeld
                                               Chairman of the Board and
                                               Chief Executive Officer

                                               /s/  David Chabut           
                                              ---------------------------------
                                               David Chabut


                                      -9-



<PAGE>
                                              
                              EMPLOYMENT AGREEMENT


     AGREEMENT  dated as of October 1, 1996  between  UNIVEC,  Inc.,  a New York
corporation,  having an office at 999 Franklin  Avenue,  Garden  City,  New York
11530 (the "Company"),  and David Shonfeld,  an individual with an address at 20
Brewer Avenue, Great Neck, New York 11020 ("Employee").

     WHEREAS,  the  Employee  has been  employed  by the  Company as Director of
Research and Development since August 1992;

     WHEREAS, the Company desires to continue the employment of the Employee and
Employee  agrees to continue  his  employment  with the Company on the terms and
conditions herein provided;

     NOW THEREFORE, in consideration of the premises and the mutual agreements
herein set forth, the parties agree as follows:

     1. Employment and Duties. The Company hereby employs Employee, and Employee
hereby  accepts  employment,  as  Director of Research  and  Development  of the
Company on the terms and conditions set forth herein. In such capacity, Employee
shall  provide the Company  with  research and  development  advice and services
relating  to its  locking  clip  patent  for  its  non-reusable  syringes  until
commencement of production and shall perform such other research and development
projects as may be assigned to him from time to time by the Company's President,
to whom Employee shall report. During Employee's employment hereunder,  he shall
be allowed to pursue  other  business  activities  which  will not  conflict  or
otherwise interfere with the performance of his duties hereunder,  provided they
are not

                                        1

<PAGE>


competitive  with the business of the Company and the  performance of his duties
hereunder has priority over such other  business  activities.  Employee will use
his best  efforts  to  advance  the  Company's  interests  at all  times.  It is
anticipated  that  Employee will devote an average of at least 24 hours per week
in the  performance  of his duties  hereunder.  From time to time, as necessary,
Employee and the President of the Company, or his designee, shall agree on a set
of research and development  objectives for particular  projects,  including the
documentation required in connection therewith, and an estimate of the number of
hours to complete the project ("Estimated Project Hours").

     2.  Term.  Subject  to the  termination  provisions  of  Section  5 hereof,
Employee's  employment by the Company hereunder will be for a term commencing on
the date hereof and ending on July 31, 1997 (the "Employment Term").

     3. Place of Performance. Unless specifically instructed by the President of
the  Company,  or his  designee,  to perform  services  at some other  location,
Employee shall perform his duties hereunder at the Company's offices.

     4.  Compensation.  During the  Employment  Term,  the Company shall pay the
Employee for his services hereunder at the rate of $50 per hour.  Employee shall
submit a true and accurate  daily  account of the number of hours  (expressed to
the  nearest  half hour)  devoted to the  performance  of his duties  hereunder,
together with an itemized expense report and list of objectives accomplished, to
the  Company's  President  or his  designee,  on the  15th  and last day of each
calendar month during the Employment Term. Employee  understands and agrees that
unless  specifically   authorized  in  writing,  in  advance  by  the  Company's
President,  or his designee,  the Employee shall not be entitled to compensation
for (i) more than forty (40) hours

                                        2

<PAGE>


per  week,  (ii)  any  time in  excess  of the  Estimated  Project  Hours  for a
particular  project,  or (iii) his time in commuting or otherwise traveling from
home or the location of his other  business  pursuits to and from the  Company's
offices or to such other  locations  at which he performs  services on behalf of
the Company.  The Company shall pay the Employee for services rendered hereunder
within  five  (5)  business  days  following   receipt  of  the   aforementioned
documentation,  which  payments shall be net of deduction for FICA and Medicare.
The  Company  shall  provide  the  Employee  with  benefits of $20,000 per annum
(before  deduction  for the  Company's  contribution  to FICA and  Medicare  and
recomputed  as if paid on a  pre-tax  basis  using a  marginal  tax rate of 35%,
except  for  such  benefits  as are  made  available  to  employees  generally),
including  but not  limited to an  automobile  allowance  and health  insurance.
During the  Employment  Term,  the Company shall  reimburse the Employee for all
reasonable and necessary  business expenses incurred and paid directly by him in
the  performance  of his duties  hereunder,  upon  submission  to the Company of
reasonably  detailed  expense reports and  appropriate  vouchers and/or receipts
prepared in accordance  with the applicable  provisions  and  regulations of the
Internal Revenue Code; it being understood that unless  specifically  authorized
in writing,  in advance by the  President or his designee,  of the Company,  the
only expenses which will be reimbursed to Employee hereunder will be for travel,
lodging and meals.

     5.  Termination.  Notwithstanding  any  provision of this  Agreement to the
contrary,   Employee's   employment   hereunder  shall  be  subject  to  earlier
termination as follows:

          (a) Death. This Agreement shall terminate upon the death of Employee.

          (b) Cause. The Company may terminate  Employee's  employment hereunder
for  "cause"  (as  hereinafter  defined)  immediately  upon  written  notice  of
termination

                                       -3-

<PAGE>



to the Employee. For purposes of this Paragraph 5(b), "cause" means: (i) willful
and gross  misconduct  with  respect to the  business or affairs of the Company;
(ii)  willful and gross  neglect of duties or willful  and gross  failure to act
which  adversely  affects the  business or affairs of the  Company;  (iii) gross
negligence in the performance of the Employee's  duties  hereunder;  (iv) fraud,
embezzlement  or criminal  conduct  (other than  misdemeanors  and motor vehicle
related incidents),  whether or not directed against the Company; or (v) failure
of Employee to cure or remedy any alleged  violation of  Employee's  obligations
under  Paragraphs  6, 7, 8 or 9 of this  Agreement  after  ten (10)  days  prior
written notice from the Company.

          (c)  Termination by Company.  The Company may terminate this Agreement
at any time after  December  31,  1996 upon not less than thirty (30) days prior
written notice to Employee.

          (d) Termination by Employee. The Employee may terminate this Agreement
at any time after  December  31,  1996 upon not less than thirty (30) days prior
written notice to the Company.

          (e)  Termination  of  Employee's  Right  to  Compensation.  Except  as
otherwise  specifically  provided  herein or as accrued for  services  performed
though  the  date of  termination,  all of  Employee's  rights  to  compensation
hereunder shall cease to exist effective upon the date of termination.

     6. Developments. The Employee agrees promptly to disclose in writing to the
Company any invention or discovery  made by him during his  employment  with the
Company,  whether  during  or  after  working  hours,  that  relates  to (i) any
disposable  medical  devices  for drug  delivery,  including  but not limited to
hypodermic needles, (ii) inventions developed for the

                                       -4-

<PAGE>



Company  through  projects  participated  in by  Employee  and (iii)  processes,
including  equipment  used to produce items covered by clauses (i) and (ii) (the
items referred to in clauses (i), (ii) and (iii) being  hereinafter  referred to
collectively as "Covered Inventions"), and such inventions and discoveries shall
be the Company's sole property.  Upon the Company's  request,  whether during or
after the term of his  employment,  Employee  shall  execute  and  assign to the
Company all  applications for letters patent and copyrights of the United States
and such  foreign  countries  as the Company may  designate  relating to Covered
Inventions,  and  Employee  shall  execute and deliver to the Company such other
instruments  as the  Company  deems  necessary  to vest in the  Company the sole
ownership of all exclusive rights in and to such inventions and discoveries,  as
well  as  the  patents  and/or  copyrights.   If  services  in  connection  with
applications  for patents  and/or  copyrights  are  performed by Employee at the
Company's request after the termination of his employment, the Company shall pay
him reasonable compensation for such services rendered after termination of this
Agreement.

     7.  Non-Competition.  During the Employment Term and for a period of twelve
(12)  months  after  the  termination  of this  Agreement,  however  occasioned,
Employee shall not within the United States,  Canada,  Mexico or Japan, directly
or indirectly,  as principal,  agent,  stockholder,  joint  venturer,  investor,
employee,  consultant,  officer, director, partner, adviser, guarantor or in any
other  capacity,  provide  services or advice  relating  to, or compete  with or
engage  in,  the  design,  manufacture,   marketing,  sale  or  distribution  of
hypodermic  syringes or other  disposable  medical devices (other than for or on
behalf of the Company), or own or control any interest in any entity which is so
engaged (other than the Company).

                                       -5-

<PAGE>



     8.  Non-Solicitation.  The Employee agrees that he will not during the term
of this Agreement and for a period of one (1) year following the  termination of
his employment with the Company for any reason,  directly or indirectly  solicit
or contact any employee of the Company with a view to encouraging  such employee
to leave the employ of the Company for the purpose of being hired by him, or any
employer affiliated with him, or any competitor of the Company.

     9.  Confidentiality.  Executive agrees that he will not, during the term of
this  Agreement  and  thereafter,  use  or  disclose  to any  individual,  firm,
corporation,  partnership,  business trust, or other business entity (any of the
foregoing  being  hereinafter  referred to as a "Person")  any  confidential  or
proprietary information of the Company for any reason or purpose whatsoever, nor
shall he make use of any such  confidential  or proprietary  information for his
own purpose or for the benefit of any Person other than the  Company,  including
without limitation, any and all patents (issued or pending),  designs, drawings,
blueprints, manufacturing processes, specifications, test data, graphics, charts
and all other  technical  information  , currently in existence or  subsequently
developed, relating to Covered Inventions, information relating to the Company's
research and  development  activities  and marketing  strategy,  or  information
relating to the Company's costs, pricing practices,  customer lists or financial
data;  except that  nothing  herein  shall be  construed  to  prohibit  him from
complying with legal process or using or disclosing such information if it shall
have become  public  knowledge  other than by or as a result of  disclosure by a
Person not having a right to make such  disclosure.

     10. Specific Performance. Employee acknowledges that the covenants set
forth in Paragraphs 6, 7, 8 and 9 are reasonable and necessary for the
protection of the Company and

                                       -6-

<PAGE>



that his  violation of any of the  provisions  of  Paragraphs 6, 7, 8 or 9 shall
cause the Company immediate and irreparable harm and, agrees that in such event,
an injunction  restraining him from such violation or threatened  violations may
be entered against him in addition to any other remedy available to the Company.
Employee  waives  any right  which he may  otherwise  have to assert in any such
proceeding that the Company has an adequate remedy at law.

     11. Assignment. This Agreement shall be binding and inure to the benefit of
the Company, its successors and permitted assigns and to Employee, and his heirs
and personal  representatives.  However,  neither this  Agreement nor any of the
rights of the parties  hereunder may be  transferred or assigned by either party
hereto, except that if the Company merges or consolidates with or into, or sells
or otherwise  transfers  substantially  all its assets to,  another  corporation
which assumes the Company's  obligations  under this Agreement,  the Company may
assign its rights hereunder to that corporation. Any other attempted transfer or
assignment  in  violation  of this  Paragraph  shall  be void.  Since  this is a
contract for personal  services,  only Employee is deemed  capable of performing
hereunder.

     12. Waiver.  The failure of a party to insist upon strict  adherence to any
term of this  Agreement on any occasion shall not be considered a waiver thereof
or deprive that party of the right thereafter to insist upon strict adherence to
that term or any other term of this  Agreement.  Any waiver of any breach of any
provision of this Agreement shall not constitute a waiver of any other breach of
such provision or any other provision hereof.

     13. Notices. Any demand, notice or other communication under this Agreement
shall be in  writing  and  shall be  deemed  duly  given,  and  received  by the
addressee at the address stated above upon receipt, duly evidenced if (i) mailed
by certified or registered mail, return

                                       -7-

<PAGE>



receipt  requested,  with  postage  prepaid  (ii)  deposited  with a  recognized
overnight  courier such as Federal  Express,  UPS or Express Mail, (iii) by hand
delivery,  or (iv) upon the receipt of actual written  notice,  or at such other
address  as may be  specified  by a  party  in a  written  notice  delivered  in
accordance with the provisions of this Paragraph 13.

     14. Entire  Agreement.  This  Agreement  constitutes  the entire  agreement
between the parties as of the date hereof with respect to Employee's  employment
by the  Company,  superseding  all prior or  contemporaneous  understandings  or
agreements,  oral or  written.  This  Agreement  may not be  modified or amended
except by subsequent written agreement of the parties which specifically  states
that it is  intended  to be a  modification,  amendment  or  supplement  to this
Agreement,  and is signed by all of the parties hereto.  No course of dealing or
custom shall be referred to as modifying any of the terms and conditions of this
Agreement.

     15.  Governing Law. This  Agreement  shall be governed by, and construed in
accordance  with, the laws of the State of New York applicable to contracts made
and to be performed wholly within that State, and any action, suit or proceeding
which  shall be  permitted  by this  Agreement,  or by action  of law,  shall be
commenced in any court having  jurisdiction in New York County, or in the United
States  District  Court for the Southern  District of New York,  and the parties
hereto hereby waive any objection to  jurisdiction  or venue in any such action,
suit or proceeding commenced in such courts.

     16. Arbitration.  Except as specifically provided in Paragraphs 7, 8, 9 and
10 of this Agreement, any and all claims, disputes and other matters in question
with respect to,  arising out of, under or in  connection  with this  Agreement,
including  without  limitation,  the validity,  interpretation,  performance and
breach hereof, or the rights and privileges provided by, or

                                       -8-

<PAGE>



responsibilities and obligations under this Agreement,  shall be finally decided
by  arbitration  in the  City  of New  York  before  three  (3)  arbitrators  in
accordance  with  the  Rules of the  American  Arbitration  Association  then in
effect, unless the parties mutually agree otherwise. This Agreement to arbitrate
shall be  specifically  enforceable  under the prevailing  arbitration  law. The
award rendered by the  arbitrators  shall be final,  and judgment may be entered
upon it in  accordance  with  applicable  law in any court  having  jurisdiction
thereof.  The parties  agree that the  arbitrators  will have full  authority to
award the costs of the arbitration, including attorneys' fees.

     17.  Severability.  In the event any  provision  of this  Agreement is held
invalid or  unenforceable by any court of competent  jurisdiction,  such holding
shall not invalidate or render  unenforceable any other provision  hereof.  Such
invalid or unenforceable  provision shall be amended,  if possible,  in order to
accomplish the purposes of this Agreement.

     18.  Headings.  The headings of the various sections of this Agreement have
been inserted for  convenience of reference only and shall not be deemed to be a
part of this Agreement.

     IN WITNESS  WHEREOF,  the parties have executed this  Agreement on the date
first above written. 

                                               UNIVEC, INC.


                                               By:/s/ Joel Schoenfeld
                                                  ------------------------
                                                      Joel Schoenfeld
                                                      Chief Executive Officer
                                                      and President



                                       -9-

<PAGE>

                                                  /s/  David Shonfeld
                                                  -------------------------
                                                       David Shonfeld








                                      -10-


<PAGE>

                             SHARE OPTION AGREEMENT

     AGREEMENT, made this 7th day of June, 1995, between UNIVEC INC., a New York
corporation (the "Corporation"),  maintaining its principal place of business at
999  Franklin  Avenue,  Garden  City,  New  York  11530,  and  LEONARD  N.  TARR
("Optionee"),  an individual residing at 100 Chestnut Lane,  Woodbury,  New York
11797.

                                W I T N E S S H:

     WHEREAS,  Optionee desires to have the option to purchase certain shares of
the Corporation,  and the Corporation is willing to grant said option,  upon the
terms and conditions hereinafter set forth;

     NOW, THEREFORE,  for the sum of Fifty and 00/100 ($50.00) Dollars and other
good and valuable consideration,  the receipt and sufficiency of which is hereby
acknowledged, the parties agree as follows:

     1. GRANT OF OPTION

     The Corporation  hereby grants to the Optionee the option (the "Option") to
purchase at any time prior to the  Expiration  Date (defined  below) 3.26 shares
(the "Shares") of the Corporation's  common stock, no par value per share, which
on the date hereof  represents,  following  exercise  of the Option,  three (3%)
percent of the issued and  outstanding  capital  stock of the  Corporation  on a
fully diluted basis after giving  effect to all options,  warrants,  convertible
debentures or other conversion or share purchase rights  outstanding on the date
hereof. The Optionee may exercise this Option for the purpose of purchasing less
than the maximum number of Shares purchasable upon exercise of the Option.  Such
purchase  shall not affect the  Optionee's  ability to  purchase  the  remaining
Shares  purchasable  upon  exercise of the Option  pursuant to the terms of this
Agreement. The number of Shares issuable upon exercise of this Option is subject



<PAGE>


to adjustment as set forth in Section 6.

     2. PURCHASE PRICE

     The purchase  price for all of the Shares shall be Two Hundred  Twenty-Five
Thousand and 00/100 ($225,000.00) Dollars (initially  $69,018.404 per Share). If
less  than  all of the  Shares  are  purchased  pursuant  to the  terms  of this
Agreement,  the purchase  price shall be  calculated by  multiplying  the stated
amount  ($225,000.00)  by a fraction,  the numerator  being the number of Shares
purchased and the  denominator  being the total number of Shares  subject to the
Option.  All amounts shall be payable in cash or by certified check delivered at
the Option Closing (as hereinafter defined).

     3. EXERCISE OF OPTION

     The Option shall be exercisable  by the Optionee by  irrevocable  notice in
writing to the  Corporation  as set forth  herein prior to the  Expiration  Date
(defined  below).  If the Optionee  exercises  the Option,  the Fifty and 00/100
($50.00)  Dollars paid to the Corporation  shall be applied against the purchase
price to be paid.  If the Optionee  fails to exercise the Option,  the Fifty and
00/100  ($50.00)  Dollars  shall belong to the  Corporation  absolutely  and all
rights under this Agreement shall terminate without further notice.

     4. DURATION

     The Option  shall  continue  in full force and effect  until June 30,  1998
unless  terminated  sooner by the  exercise of the Option by the  Optionee  (the
"Expiration Date").

     5. OPTION CLOSING

     Delivery of the Shares and payment of the  purchase  price shall take place
at the closing  (the  "Option  Closing")  to be held between ten (10) and thirty
(30) days after delivery


                                      -2-


<PAGE>


of the notice  exercising the Option at the Optionee's  address set forth above,
at the time and on the date specified in such notice of exercise.

     6. ADJUSTMENTS

     In the event of any  change in the number of  outstanding  Shares of Common
Stock  of  the  Corporation  by  reason  of any  stock  dividend,  stock  split,
recapitalization,  reclassification,  combination,  or exchange  of Shares,  the
number of Shares of Common Stock to be delivered upon exercise of the Option and
not issued prior to the record date for such event shall be adjusted so that the
Optionee  shall  receive upon  exercise of the Option,  that number of Shares of
Common  Stock that the  Optionee  would have been  entitled  to receive  had the
Option been exercised  immediately  prior to the record date for such event.  In
the event of such an  adjustment,  the Option  price per share shall be adjusted
accordingly,  so that there will be no change in the  aggregate  purchase  price
payable upon exercise of the Option.

     7. ACKNOWLEDGEMENTS OF OPTIONEE, ETC.

     7.1. No Voting Rights. This Agreement shall not itself entitle the Optionee
to any voting  rights or other rights as a  stockholder  of the  Corporation  it
being  understood  that  only upon  delivery  of Shares  shall the  Optionee  be
entitled to be a holder of the underlying shares of Common Stock.

     7.2.  Investment  Intent.  The  Optionee  represents  and  warrants  to the
Corporation  that he is acquiring  the Shares to be issued upon exercise of this
Option  pursuant to this Agreement for his own account for  investment  only and
not with a present view to, or for sale in connection  with, any distribution of
such Shares (as such term is defined in the Securities Act of 1933, as amended).
The Optionee further represents and warrants that (a) he

                                      -3-



<PAGE>


can afford to suffer the loss of his entire  investment  in the  Shares;  (b) by
reason of his business and financial  experience  and the business and financial
experience of those persons,  if any, retained by him to advise him with respect
to his investment in such Shares; (c) the Optionee, together with such advisors,
has such  knowledge,  sophistication  and  experience  in business and financial
matters so as to be capable of evaluating the merits and risks or acquiring such
Shares;  and  (d)  the  Optionee,  together  with  such  advisors,  has  had the
opportunity to ask such questions of the  Corporation its officers and employees
and to  obtain  answers  thereto  as the  Optionee  and his  advisors  considers
necessary to evaluate the merits and risks of the prospective  investment in the
Shares. The Optionee  understands,  acknowledges and agrees that he may not sell
or otherwise  transfer the Shares of Common Stock  issuable under this Agreement
without  registration  under  the  Securities  Act of 1933,  as  amended,  or an
exemption therefrom.

     7.3. Legend and Registration. (a) The Optionee acknowledges and agrees that
the  Shares to be issued  pursuant  to the  exercise  of the  Option  shall have
imprinted thereon the following legend:

     "THE SECURITIES  REPRESENTED BY THIS  CERTIFICATE  HAVE NOT BEEN REGISTERED
     UNDER THE SECURITIES ACT OF 1933, AS AMENDED,  OR UNDER THE SECURITIES LAWS
     OF  ANOTHER  STATE,  AND  MAY  NOT BE SOLD OR  TRANSFERRED  (1)  EXCEPT  IN
     COMPLIANCE  WITH  SUCH  ACT OR SUCH  LAWS  AND THE  RULES  AND  REGULATIONS
     PROMULGATED  THEREUNDER OR (2) UPON DELIVERY TO THE  CORPORATION OF A LEGAL
     OPINION  OF  COUNSEL  TO THE  HOLDER  (WHICH  COUNSEL  SHALL BE  REASONABLY
     ACCEPTABLE  TO THE  CORPORATION)  TO THE EFFECT THAT SUCH TRANSFER WILL NOT
     REQUIRE REGISTRATION."

     The  certificates  shall also have imprinted  thereon any other legend that
may be required by applicable law.

     (b) The Optionee  further  acknowledges  and agrees that none of the Shares
has been 

                                      -4-


<PAGE>


registered  under any Federal or state  securities  laws,  and, as a consequence
thereof,  all of the Shares issued to the Optionee  under this Agreement must be
held indefinitely  unless (i) subsequently  registered under applicable  Federal
and  state  securities  laws;  or  (ii)  exemptions  or  transfer  thereof.  The
Corporation has no obligation to the Optionee and no present intention to file a
registration statement under either Federal or state law.

     (c) The  Optionee  further  acknowledges  and  agrees  that it  shall  be a
condition  precedent to any transfer of Shares prior to the  registration  under
the  Securities  Act of 1933,  as amended that  counsel for the Optionee  (which
counsel shall be reasonably  acceptable to the Corporation) shall have furnished
the  Corporation  with an  opinion  to the effect  that such  transfer  will not
require  registration  because of the  availability  of an  exemption  under the
Securities Act of 1933, as amended, and applicable state securities laws.

     8. REGISTRATION RIGHTS

     The  Corporation  agrees that each time it proposes to file a  registration
statement  in  connection  with a public  offering of its  securities  under the
Securities  Act of 1933, it will promptly give written notice to the Optionee of
such intention and of the securities to be registered.  Upon the written request
(a  "Registration  Request") of the Optionee  made within twenty (20) days after
the giving of any such notice,  to include in such registration and offering any
shares issued upon exercise of this Option  ("Designated  Securities") which the
Optionee  requests  to  be  included  in  the  registration  and  offering,  the
Corporation will at its expense cause all the Designated Securities set forth in
such notice to be included  in such  registration  statement  and  offering.  In
connection with the registration and offering of the Designated Securities,  the
Corporation will as expeditiously as possible;

                                      -5 -



<PAGE>


          (a) prepare and file with the  Securities  and  Exchange  Commission a
     registration  statement with respect to the  Designated  Securities and use
     its best efforts to cause such registration statement to become effective;

          (b) furnish to the  Optionee  such  number of copies of a  prospectus,
     including a preliminary prospectus,  in conformity with the requirements of
     the Securities  Act of 1933,  and such other  documents as the Optionee may
     reasonably request; and

          (c) cause the  Designated  Securities to be listed on each  securities
     exchange on which  securities  of the same class issued by the  Corporation
     are then listed.

     Nothing  herein  prevents  the  Corporation   from  abandoning  a  proposed
registration.  If such offering is in connection with an underwritten  offering,
the  underwriter  may limit  the  number of  Designated  Securities  that may be
included in such offering, provided all other Selling Shareholders,  if any, are
limited on a pro rata basis.

     9. REPRESENTATIONS, WARRANTIES AND COVENANTS

     The  Corporation  represents,  warrants  and  covenants  to the Optionee as
follows:

     (a) The Corporation is a corporation  duly organized,  validly existing and
in good  standing  under the laws of the State of New York and has all requisite
corporate  power and  authority  and is entitled to carry on its business as now
being  conducted  and to own,  lease or  operate  its assets as and in the place
where such  business is now  conducted  and its assets are now owned,  leased or
operated.

     (b) Neither the  execution,  delivery nor  performance of this Agreement by
the Corporation or the Shareholders will with or without the giving of notice or
0the passage of time,  or both,  conflict  with,  result in a default,  right to
accelerate or loss of rights under, or result in


                                       -6-


<PAGE>


the creation of any lien, charge or encumbrance pursuant to any provision of the
Corporation's  Certificate of Incorporation  or bylaws or any mortgage,  deed of
trust,  lease,  license,  agreement,  understanding,  instrument,  law,  rule or
regulation or any order,  judgment or decree to which the Corporation is a party
or by which the Corporation,  or any of its assets may be bound or affected. The
Corporation  has the full  corporate  power  and  authority  to enter  into this
Agreement and to carry out the transactions contemplated hereby. All proceedings
required to be taken by the  Corporation  and its  shareholders to authorize the
execution,  delivery and  performance of this Agreement have been properly taken
and this Agreement constitutes a valid and binding obligation of the Corporation
and the Shareholders.

     (c) The  presently  authorized,  issued and  outstanding  Shares of capital
stock of the  Corporation  and the names of the  record  and  beneficial  owners
thereof  are as set forth in  Schedule  I hereto.  Each of such  persons  is the
lawful record and  beneficial  owner of the number of Shares set forth  opposite
his name.  Except as set forth on  Schedule I on the date  hereof,  there are no
outstanding  subscriptions,   options,  warrants,  calls,  contracts,   demands,
commitments,  convertible  securities or other agreements or arrangements of any
character  or nature  whatever  under  which the  Corporation  is or may  become
obligated to issue, assign or transfer any Shares of its capital stock.

     (d) There has been reserved,  and the  Corporation  shall at all times keep
reserved,  out of the  authorized  but unissued  Shares of its common  stock,  a
number of shares sufficient to provide for the exercise of the Option.

     (e) So long as the Option is in effect or the Optionee is a shareholder  of
the  Corporation,  the Optionee (i) shall to the extent  prepared by the Company
receive within ninety


                                      -7-

<PAGE>


(90) days after the end of each fiscal year financial statements for such fiscal
year certified by an independent  certified public accounting firm of recognized
standing, (ii) shall to the extent prepared by the Company receive copies of all
quarterly  financial  reports and the  Corporation's  annual  federal income tax
return  prepared  for or on behalf of the  Corporation  and (iii) shall have the
right from time to time upon reasonable notice to the Corporation to examine the
books and  records of the  Corporation  provided  the  Optionee  shall keep such
information confidential.

     (f) The Corporation will not, by amendment of the Corporation's articles of
incorporation or through any reorganization,  transfer or assets, consolidation,
merger,  dissolution issue or sale of securities,  or any other voluntary action
avoid or seek to avoid the  observance or  performance of any of the terms to be
observed or  performed  hereunder by the  Corporation,  but will at all times in
good faith assist in the carrying out of all the  provisions  of this  Agreement
and in the taking of all such action as may be necessary or appropriate in order
to protect the option, and other rights of the Optionee.

     10. NOTICES

     All  notices,  requests,  demands  and  other  communications  required  or
permitted to be given  hereunder shall be in writing and shall be deemed to have
been duly given if delivered  personally  or mailed by  registered  or certified
mail,  return receipt  requested,  to the addresses herein designated or to such
other  addresses as may be designated by notice given to the addresses set forth
below by registered or certified mail:

If to Leonard Tarr:

Leonard Tarr
100 Chestnut Lane
Woodbury, New York 11797

                                       -8-


<PAGE>


with copies to:

Ruskin, Moscou, Evans & Faltischek, P.C.
170 Old Country Road
Mineola, New York 11501
Attention: Irvin Brum Esq.

If to Univec, Inc.:

Univec Inc.
999 Franklin Avenue 
Garden City, New York 11530 
Attention: Joel Schoenfeld, President 
with copies to:

Meltzer, Lippe, Goldstein, Wolf,
 Schlissel & Sazer, P.C.
The Chancery
190 Willis Avenue
Mineola, New York 11501
Attn: Scott T. Mikuen, Esq.

     11. GENERAL

     (a) Choice of Law. This Agreement shall be governed, construed and enforced
in accordance  with the laws of the State of New York without  giving any effect
to the conflict of law principles thereof.

     (b)  Headings.  The section  headings  contained  herein are for  reference
purposes only and shall not in any way affect the meaning or  interpretation  of
this Agreement.

     (c) Entire  Agreement.  This Agreement sets forth the entire  agreement and
understanding of the parties in respect of the transactions  contemplated hereby
and supersedes all prior agreements,  arrangement and understanding  relating to
the subject matter hereof.

     (d) Benefit.  All the terms,  covenants,  representations,  warranties  and
conditions of this  Agreement  shall be binding upon and inure to the benefit of
the parties hereto

                                       -9-





<PAGE>


and their respective successors and assigns.

     (e)  Amendments.  This  Agreement may be amended,  modified,  superseded or
canceled,  and any of the terms or  conditions  hereof may be waived,  only by a
written  instrument  executed  by all the  parties  hereto  or, in the case of a
waiver, by the party waiving compliance.

     (f)  Waivers.  The  failure  of any  party at any time or times to  require
performance  of any  provision  hereof shall in no manner  affect the right at a
later time to enforce the same. No waiver by any party of any condition,  or the
breach of any term contained in this Agreement  whether by conduct or otherwise,
in any one or more instances  shall be deemed to be or construed as a further or
continuing  waiver of any such  condition  or  breach of any other  term of this
Agreement.

     (g)  Counterparts.  This  Agreement  may  be  executed  in  any  number  of
counterparts,  each of  which  shall be  deemed  an  original,  but all of which
together shall constitute one and the same instrument. 

                                      -10-


<PAGE>


                                   SCHEDULE I

                       CAPITALIZATION AND SHARE OWNERSHIP

Shares: Authorized 200 no par shares
- ------
Outstanding:

Flora Schoenfeld        32.5 shares

Alan Gold               32.5 shares

John Frank               5 shares

David Shonfeld          25 shares

Richard Lerner           5 shares
                       ---
                       100

Options/Subscriptions:
- ----------------------

     John Frank has subscribed for 3.2526 shares at $92,233.05 per share and has
an option to purchase 2.168 shares at $92,233.05 per share.

2



<PAGE>


     IN WITNESS WHEREOF, the parties have hereunto set their hands and seals the
day and year first above written.



                                   UNIVEC INC.

                                   By: /s/  Joel Schoenfield
                                   -----------------------------------------
                                            Joel Schoenfield, President

                                   LEONARD N. TARR, P.C., PENSION
                                   TRUST # 1


                                   By: /S/ Leonard N. Tarr 
                                   ------------------------------------------
                                   Leonard N. Tarr, Trustee


<PAGE>

                                  UNIVEC, INC.
                             1996 STOCK OPTION PLAN




SECTION 1.  PURPOSE:

                  The purpose of the Univec Inc., 1996 Stock Option
                  Plan (the "Plan") is to enable Univec, Inc. (the "Company") to
                  attract and retain employees, directors and consultants who
                  contribute to the Company's success by their ability,
                  ingenuity and industry, and to enable such employees and
                  directors to participate in the long-term success and growth
                  of the Company by giving them an equity interest in the
                  Company.

SECTION 2.  ADMINISTRATION.

             2.1  The Plan shall be administered by the Company's Board of
                  Directors (the "Board") as such Board may be composed from
                  time to time and/or by a Stock Option Committee (the
                  "Committee") appointed by the Board which shall be comprised
                  of at least two disinterested persons (the term
                  "disinterested" having the meaning ascribed to it by Rule
                  16b-3 of the Securities Exchange Act of 1934 (the "1934
                  Act")), who shall serve at the pleasure of the Board. As and
                  to the extent authorized by the Board, the Committee may
                  exercise the powers and authority vested in the Board under
                  the Plan. The Board of Directors, or such Committee, whichever
                  is serving as administrator of the Plan, is hereinafter
                  referred to as the "Committee".

             2.2  The Committee shall have the authority to grant Stock Options
                  to eligible grantees under the Plan; to adopt, alter and
                  repeal such administrative rules, guidelines and practices
                  governing the Plan as it shall deem advisable; to interpret
                  the terms and provisions of the Plan and any Stock Options
                  granted under the Plan; and to otherwise supervise the
                  administration of the Plan. In particular, and without
                  limiting its authority and powers, the Committee shall have
                  the authority:

                  (a)  to determine whether and to what extent any Stock
                       Options will be granted hereunder;

                  (b)  to select the grantees to whom Stock Options will be
                       granted;

                  (c)  to determine the number of shares of the common stock
                       of the Company (the "Stock") to be covered by each
                       Stock Option granted hereunder;



                                      -1-
<PAGE>

                  (d)  to determine the terms and conditions of any Stock Option
                       granted hereunder, including, but not limited to, any
                       vesting or other restrictions based on performance and
                       such other factors as the Committee may determine, and to
                       determine whether the terms and conditions of the Stock
                       Option are satisfied;

                  (e)  to determine the treatment of Stock Options upon a
                       grantee's retirement, disability, death, termination for
                       cause or other termination;

                  (f)  to determine pursuant to a formula or otherwise the fair
                       market value of the Stock on a given date;

                  (g)  to provide that the shares of Stock received as a result
                       of exercise of a Stock Option shall be subject to the
                       terms of a shareholders agreement or subject to such
                       other terms and conditions relating to transfer as the
                       Committee may specify;

                  (h)  to amend the terms of any Stock Option, prospectively or
                       retroactively; provided, however, that no amendment shall
                       impair the rights of the award holder without his or her
                       consent; and

                  (i)  to substitute new Stock Options for previously granted
                       Stock Options, including previously granted options
                       having higher option prices.

             2.3  In making such determinations, the Committee may take into
                  account the nature of the services rendered by the
                  individuals, their present and potential contributions to the
                  Company's success, and such other factors as the Committee
                  shall deem relevant. All determinations made by the Committee
                  pursuant to the provisions of the Plan shall be final and
                  binding on all persons, including the Company and Plan
                  participants.

             2.4  Notwithstanding anything contained herein to the contrary, at
                  any time during the period the Company's Stock is registered
                  pursuant to Section 12(g) of the 1934 Act, the Committee shall
                  have the exclusive right to grant Stock Options to persons
                  subject to Section 16 of the 1934 Act and set forth the terms
                  and conditions thereof. With respect to persons subject to
                  Section 16 of the 1934 Act, transactions under the Plan are
                  intended, to the extent possible, to comply with all
                  applicable conditions of Rule 16b-3, as amended from time to
                  time (and its successor provisions, if any) under the 1934
                  Act. To the extent that any provision of the Plan or action by
                  the Board or the Committee fails to so comply, it shall be
                  deemed null and void, to the extent permitted by law and
                  deemed advisable by the Board and/or the Committee.



                                      -2-
<PAGE>



SECTION 3.  STOCK SUBJECT TO PLAN.

             3.1  The total number of shares of Stock reserved and available for
                  distribution under the Plan shall be 4,709,219 (subject to
                  further adjustment as provided below). Such shares may consist
                  of authorized but unissued shares or treasury shares.

             3.2  In the event of any merger, reorganization, consolidation,
                  sale or other distribution of substantially all assets, or
                  recapitalization of the Company, Stock dividend, split,
                  spin-off, split-up, split-off, an extraordinary distribution
                  of cash or assets by the Company or other change in the
                  Company's corporate structure affecting the Stock, a
                  substitution or adjustment, as may be determined to be
                  appropriate by the Committee in its sole discretion, shall be
                  made in the aggregate number of shares reserved for issuance
                  under the Plan, the number of shares subject to outstanding
                  Stock Options and the amounts to be paid by grantees with
                  respect to outstanding Stock Options.

SECTION 4.  ELIGIBILITY.

                  Officers and other key employees of the Company are
                  eligible to be granted Stock Options under the Plan. Directors
                  of the Company (whether or not also employees of the Company)
                  and consultants to the Company also are eligible to be granted
                  Stock Options under the Plan. The participants under the Plan
                  shall be selected from time to time by the Committee, in its
                  sole discretion, from among those eligible.

SECTION 5.  TERMS OF STOCK OPTIONS

             5.1  The Stock Options awarded under the Plan may be one of two
                  types: (i) Incentive Stock Options within the meaning of
                  Section 422 of the Internal Revenue Code of 1986, as amended
                  (the "Code"), or any successor provision thereto; and (ii)
                  Non-Qualified Stock Options. To the extent that any Stock
                  Option does not qualify as an Incentive Stock Option, it shall
                  constitute a Non-Qualified Stock Option.

             5.2  Subject to the following provisions, Stock Options awarded
                  under the Plan shall be in such form and shall have such terms
                  and conditions as the Committee may determine:

                  (a)  Option Price. The option price per share of Stock
                       purchasable under a Stock Option shall be determined by
                       the Committee.

                  (b)  Option Term. The term of each Stock Option shall be fixed
                       by the Committee, but such term shall not be longer than
                       10 years.

                                      -3-
<PAGE>

                  (c)  Exercisability. Stock Options shall be exercisable at
                       such time or times and subject to such terms and
                       conditions as shall be determined by the Committee. If
                       the Committee provides that any Stock Option is
                       exercisable only in installments, the Committee may waive
                       such installment exercise provisions at any time in whole
                       or in part.

                  (d)  Method of Exercise. Stock Options may be exercised in
                       whole or in part at any time during the option period by
                       giving written notice of exercise to the Company in such
                       form and manner as the Committee may require specifying
                       the number of shares to be purchased, accompanied by
                       payment of the purchase price. Payment of the purchase
                       price shall be made in such form and manner as the
                       Committee may provide in the award, which may include
                       cash, delivery of shares of Stock already owned by the
                       optionee, any other form and manner determined by the
                       Committee and permitted by law, or any combination of the
                       foregoing.

                  (e)  No Stockholder Rights. An optionee shall have neither
                       rights to dividends, nor other rights of a stockholder
                       with respect to shares subject to a Stock Option until
                       the optionee has given written notice of exercise and has
                       paid for such shares.

                  (f)  Non-transferability. No Stock Option shall be
                       transferable by the optionee other than by will or by the
                       laws of descent and distribution. During the optionee's
                       lifetime, all Stock Options shall be exercisable only by
                       the optionee.

                  (g)  Termination of Employment or Service. If an optionee's
                       employment with the Company or service as a director
                       terminates, whether by reason of death, disability,
                       retirement, voluntary or involuntary termination or
                       otherwise, the Stock Option shall be exercisable to the
                       extent determined by the Committee. The Committee may
                       provide that, notwithstanding the option term fixed
                       pursuant to Section 5.2(b), a Stock Option which is
                       outstanding on the date of an optionee's death shall
                       remain outstanding for an additional period after the
                       date of such death.

             5.3  Notwithstanding the provisions of Section 5.2, no Incentive
                  Stock Option shall (i) have an option price which is less than
                  100% of the fair market value of the Stock on the date of the
                  award of the Stock Option (110%, in the case of a 10%
                  shareholder described in Section 422(b)(6) of the Code (a "10%
                  Shareholder")), (ii) be exercisable more than ten years after
                  the date such Incentive Stock Option is awarded (5 years, in
                  the case of a 10% Shareholder), (iii) be awarded more than ten
                  years after the effective date of the Plan or (iv) be awarded
                  to any optionee who is not an employee of the Company or a
                  parent or subsidiary corporation of the Company (as defined in
                  Section 424 of the Code).


                                      -4-
<PAGE>

SECTION 6.  TAX WITHHOLDING.

             6.1  Each employee shall, no later than the date as of which the
                  value of a Stock Option first becomes includible in the
                  employee's gross income for applicable tax purposes, pay to
                  the Company, or make arrangements satisfactory to the
                  Committee regarding payment of, any federal, state, local or
                  other taxes of any kind required by law to be withheld with
                  respect to the Stock Option (or portion thereof). The
                  obligations of the Company under the Plan shall be conditional
                  on such payment or arrangements, and the Company shall, to the
                  extent permitted by law, have the right to deduct any such
                  taxes from any payment of any kind otherwise due to the
                  employee.

             6.2  To the extent permitted by the Committee, and subject to such
                  terms and conditions as the Committee may provide, an employee
                  may elect to have the withholding tax obligation with respect
                  to any Stock Options hereunder satisfied by (i) having the
                  Company withhold shares of Stock otherwise deliverable to the
                  employee with respect to the award or (ii) delivering to the
                  Company shares of Stock.

SECTION 7.  AMENDMENTS AND TERMINATION.

                  The Board may discontinue the Plan at any time and
                  may amend it from time to time. No amendment or
                  discontinuation of the Plan shall adversely affect any award
                  previously granted without the grantee's written consent.

SECTION 8.  GENERAL PROVISIONS.

             8.1  Each Stock Option under the Plan shall be subject to the
                  requirement that, if at any time the Committee shall determine
                  that (i) the listing, registration or qualification of the
                  Stock subject thereto upon any securities exchange or under
                  any state or federal law, or (ii) the consent or approval of
                  any government regulatory body, or (iii) an agreement by the
                  recipient of a Stock Option with respect to the disposition of
                  Stock is necessary or desirable (in connection with any
                  requirement or interpretation of any federal or state
                  securities law, rule or regulation) as a condition of, or in
                  connection with, the granting of such Stock Option or the
                  issuance, purchase or delivery of Stock thereunder, such Stock
                  Option shall not be granted or exercised, in whole or in part,
                  unless such listing, registration, qualification, consent,
                  approval or agreement shall have been effected or obtained
                  free of any conditions not acceptable to the Committee.

             8.2  Nothing set forth in this Plan shall prevent the Board from
                  adopting other or additional compensation arrangements.
                  Neither the adoption of nor participation in the Plan nor the
                  grant of any Stock Option hereunder shall confer upon any
                  employee of the Company any right to continued employment or
                  any director or 





                                      -5-
<PAGE>

                  consultant any right to continued service or interfere in any
                  way with the right of the Company to terminate such employee's
                  employment at any time, nor shall it interfere in any way with
                  the employee's right to terminate his or her employment or the
                  director's or consultant's right to terminate his or her
                  service.

             8.3  Determinations by the Committee under the Plan relating to the
                  form, amount and terms and conditions of awards need not be
                  uniform, and may be made selectively among persons who receive
                  or are eligible to receive Stock Options under the Plan,
                  whether or not such persons are similarly situated.

             8.4  No member of the Board or the Committee, nor any officer or
                  employee of the Company acting on behalf of the Board or the
                  Committee, shall be personally liable for any action,
                  determination or interpretation taken or made with respect to
                  the Plan, and all members of the Board and the Committee and
                  all officers and employees of the Company acting on their
                  behalf shall, to the extent permitted by law and under the
                  Certificate of Incorporation and By Laws of the Company, be
                  fully indemnified and protected by the Company in respect of
                  any such action, determination or interpretation.

             8.5  The Plan and all rights and obligations thereunder shall be
                  construed and enforced in accordance with the laws of the
                  State of New York without regard to conflicts of law
                  provisions.

SECTION 9.  EFFECTIVE DATE OF PLAN.

                  The Plan shall become effective upon approval by the
                  Company's stockholders.




                                      -6-

<PAGE>
                                  EXHIBIT 21.1

<PAGE>
                                                                    Exhibit 21.1

                                  SUBSIDIARIES

                                       OF

                                  UNIVEC, INC.


       Name                State of Incorporation             Ownership
       ----                ----------------------             ---------

Rx Ultra, Inc.                     New York                      100%




<PAGE>
                       CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the inclusion in this registration statement on Form SB-2 (File
No. 333-     ) of our report, which includes an explanatory paragraph concerning
the Company's ability to continue as a going concern, dated September 18, 1996,
except for Note 13 as to which the date is December 14, 1996, on our audits of 
the financial statements of Univec, Inc. and Subsidiary. We also consent to the
reference to our Firm under the caption "Experts."


Melville, New York
January 21, 1997.



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