UNIVEC INC
S-3/A, 1999-03-16
SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
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================================================================================
   
     As filed with the Securities and Exchange Commission on March 16, 1999

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                  --------------------------------------------

                               AMENDMENT NO. 1 TO
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933
                  --------------------------------------------
    
                                  UNIVEC, INC.
             (Exact name of registrant as specified in its charter)

          Delaware                                               11-3163455
(State or Other Jurisdiction                                    (IRS Employer
      of Incorporation)                                      Identification No.)

                                 22 Dubon Court
                     Farmingdale, New York, New York, 11735
                            Telephone: (516) 777-2000
                           Telecopier: (516) 777-2786
               (Address, including zip code, and telephone number,
               including area code of Principal Executive Offices)
                  --------------------------------------------

                                 Joel Schoenfeld
                Chairman of the Board and Chief Executive Officer
                                  UNIVEC, Inc.
                                 22 Dubon Court
                     Farmingdale, New York, New York, 11735
                            Telephone: (516) 777-2000
                           Telecopier: (516) 777-2786
            (Name, address, including zip code, and telephone number,
                    including area code of agent for service)
                  --------------------------------------------

                                   Copies to:
                                Jack Becker, Esq.
                             Snow Becker Krauss P.C.
                                605 Third Avenue
                          New York, New York 10158-0125
                            Telephone: (212) 687-3860
                           Telecopier: (212) 949-7052

         Approximate Date of Commencement of Proposed Sale to Public: As soon as
practical after this Registration Statement becomes effective.

         If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

         If any of the securities being registered on this form are to be 
offered on a delayed or continuous basis pursuant to Rule 415 under the 
Securities Act of 1933, other than securities offered only in connection with
dividend or interest reinvestment plans, check the following box.  [X]

         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.  [ ]

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

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     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>



      PRELIMINARY PROSPECTUS, SUBJECT TO COMPLETION, DATED MARCH __, 1999

                                  UNIVEC, INC.

                         350,000 Shares of Common Stock


   The Selling Securityholder is              The common stock is quoted on the 
offering to the public 350,00 shares of    Nasdaq SmallCap Market under the     
common stock which the Selling             trading symbols "UNVC." On March 9, 
Securityholder can acquire upon            1999, the closing sale price of one  
conversion of our Series C 5%              share of common stock on the The 
Convertible Preferred Stock, as payment    Nasdaq SmallCap Market was $1.0625
of dividends on the Series C Preferred     per share.                 
Stock and upon exercise by the Selling        The Company will not receive      
Securityholder of common stock purchase    any proceeds from the sale of common 
warrants issued by us.                     stock by the Selling Securityholder. 
                                           The Company has agreed to bear 
   The Selling Securityholder may          expenses in connection with the   
sell common stock directly or through      registration and sale of the shares 
broker-dealers who will receive            being offered by the Selling 
commissions or discounts. Sales of         Securityholder. The Company has      
common stock made by broker-dealers may    agreed to indemnify the Selling      
be ordinary brokerage transactions or      Securityholder against certain  
block transactions on The Nasdaq           liabilities, including liabilities   
SmallCap Market. Sales may also be made    under the Securities Act.            
through one or more dealers who may           
resell as principals, in privately            The common stock is a speculative 
negotiated transactions or otherwise, at   investment and involves a high degree
the prevailing market price, a price       of risk. You should read the         
related to the prevailing market price     description of certain risks under   
or at a negotiated price. To the           the caption "Risk Factors" commencing
Company's knowledge, the Selling           on page 3 before  purchasing the    
Securityholder has not entered into any    common stock.                        
underwriting arrangements for the sale    
of the common stock.

         These securities have not been approved or disapproved by the SEC or
any state securities commission nor has the SEC 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 March __, 1999.

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.


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.



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                                Table of Contents

                                                                            Page

Risk Factors...............................................................  __ 
Forward Looking Statements.................................................  __
Use of Proceeds ...........................................................  __
Information About the Company .............................................  __
Legal Matters .............................................................  __

                                -----------------

         This prospectus is part of a registration statement we filed with the
SEC. You should rely only on the information or representations provided in this
prospectus. We have not authorized anyone to provide you with different
information. The common stock will not be offered in any state where an offer is
not permitted. You should not assume that the information in this prospectus is
accurate as of any date other than the date on the cover of this prospectus.

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                                  RISK FACTORS

         Before you invest in our common stock, you should be aware that there
are various risks, including those described below. You should consider
carefully these risk factors together with all other information included in
this prospectus, including the documents that we incorporate by reference,
before you decide to purchase shares of common stock.

Ability to Operate Profitably. We have incurred losses since the inception of
the company. We incurred a net loss of approximately $1,172,000 for the fiscal
year ended December 31, 1997 and a net loss of approximately $1,441,000 for the
fiscal year ended December 31, 1996. We incurred a net loss of approximately
$1,210,049 for the nine months ended September 30, 1998. As a result of
continuing losses our accumulated deficit was approximately $3,149,173 at
September 30, 1998. We expect to continue to incur operating losses until such
time, if ever, as we derive significant revenues from the sale of our locking
clip syringes and other products we may develop. Our ability to operate
profitably depends upon market acceptance of our locking clip syringes, the
development of an effective sales and marketing organization, and our
development of new products, and improvements to existing products and
manufacturing processes. We cannot give you any assurances that our locking clip
syringes will achieve a level of market acceptance in foreign or domestic
markets to generate sufficient revenues to become profitable. See "Risk
Factors--Product Acceptance" and our consolidated financial statements,
including the accompanying notes which are incorporated by reference into this
prospectus.

Limited Operating History. Although we were founded in August 1992, the
production and sales of our 1cc locking clip syringe began in July 1997. From
August 1992 to June 1997, our operations consisted primarily of the design of
our patented locking clip and plunger, the design and implementation of the
equipment for production of the 1cc locking clip syringe, the hiring of key
personnel, and the sales of medical devices manufactured by others including
difficult-to-reuse syringes of an alternative design. Accordingly, we have a
limited operating history upon which an evaluation of our business and prospects
can be based. An investment in our securities is subject to all of the risks
involved in a newly established business venture. You should be aware of the
problems, delays, expenses and difficulties encountered by companies like ours
at this early stage of operations, many of which may be beyond our control,
including but not limited to commencement of production, marketing and product
introduction, competition, market acceptance of the our difficult to reuse
syringes, and unanticipated problems and additional costs relating to the
development and testing of products. Our officers have limited experience in the
production and sale of medical devices. See "Risk Factors-Limited Experience of
Management in the Development, Production and Sale of Medical Devices."

Ability to Continue as a "Going Concern". Our consolidated financial statements
for the year ended December 31, 1997 indicate there is substantial doubt about
our ability to continue as a going concern due to recurring losses. As discussed
in Note 2 to the consolidated financial statements incorporated by reference
into this prospectus, our ability to continue as a going concern is dependent,
among other things, upon our obtaining additional working capital through long
term financing or an equity infusion and the attainment of profitable commercial
operations.

Need for Additional Financing. We require additional financing to continue our
operations and we may seek to raise funds through the sale of our securities or
by other means. We cannot give you any assurances that additional funds will be
available to us on acceptable terms, if at all. Additional financing may result
in dilution to existing stockholders. If, as we anticipate, we achieve increased
levels of sales (though we cannot give you any assurances that such projected
sales increases will be realized), the need for additional financing would be
reduced. However, if funds are needed but not available in adequate amounts from
additional financing sources or from operations, we may be materially and
adversely affected.

Ability to Manage Growth.  Subject to sufficient cash flow from operations 
and/or additional financing, we

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contemplate a rapid expansion of our business. If we were to experience
significant growth in the future, our growth would likely result in new and
increased responsibilities for our management personnel and place significant
strain upon our management, operating and financial systems and resources. To
accommodate such growth and compete effectively, we must continue to implement
and improve our operational, financial, management and information systems,
procedures and controls, and to expand, train and manage our personnel. We
cannot give you any assurance that our personnel, systems, procedures or
controls will be adequate to support our future operations. If we fail to
implement and improve our operational, financial, management and information
systems, procedures or controls or to expand, train or manage employees, our
business, financial condition and results of operations could be materially and
adversely affected.

Government Regulation. The FDA, and in some instances, state authorities,
regulate the manufacture and distribution of medical devices in the United
States. Approval in the United States by the FDA and, in foreign countries, by
foreign government authorities is unpredictable and uncertain, and we cannot
give you any assurance that the necessary approvals or clearances for our
products will be granted on a timely basis or at all. If we fail to receive such
approvals or clearances, if there are any delays in our receipt of such
approvals or clearances or if any previously received approvals or clearances
are withdrawn or rescinded, our business, financial condition and results of
operations could be materially and adversely affected. Furthermore, approvals
that have been or may be granted are subject to continual review, and if
previously unknown problems are discovered later, we may be required to
undertake product labeling restrictions or a withdrawal of the product from the
market. Moreover, changes in existing requirements or adoption of new
requirements or policies could adversely affect our ability to comply with
regulatory requirements. In addition, we cannot give you any assurances that we
will not be required to incur significant costs to comply with applicable laws
and regulations in the future. If we fail to comply with applicable laws or
regulatory requirements our business, financial position and results of
operations could be materially and adversely affected.

         FDA and State Regulation Pursuant to the Federal Food, Drug, and
Cosmetic Act, as amended, and the regulations promulgated thereunder. 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 application process. We have been granted 510(k)
clearance by the FDA to market our 1cc locking clip syringe, which has been
classified as a Class II device under the Food, Drug and Cosmetic Act, and
accordingly, we are permitted to market and sell our 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 we would then be required to meet.
Furthermore, as manufacturers of medical devices, we are subject to
recordkeeping requirements and required to report adverse experiences relating
to the use of the device. We are also required to register our establishments
and list our devices with the FDA and with certain state agencies and we are
subject to periodic inspections by the FDA and certain state agencies. The Food,
Drug and Cosmetic Act requires us to manufacture devices in accordance with good
manufacturing practices regulations, and certain procedural and documentation
requirements have been imposed upon us 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 good manufacturing practices
requirements. If we fail to demonstrate adequate compliance with good
manufacturing practices requirements in the audit or post-market surveillance,
penalties or enforcement proceedings may be imposed on us. Our manufacturing
facilities have not been certified as satisfying good manufacturing practices
requirements. Our facilities will be subject to extensive audits in the future
pursuant to standard FDA procedure. We cannot give you any assurances that when
we are audited we will be found to be in compliance with good manufacturing
practice requirements, or if we are not found in compliance, what penalties,
enforcement procedures or compliance effort will be levied on or required of us.
The FDA also has the authority to request us to repair, replace or refund the
cost of any device manufactured or distributed by us, and if we fail to meet
standards for effectiveness and safety we could be required to discontinue the
manufacturing and/or the marketing of our product in the United States.

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         Foreign Regulation. The introduction of our products in foreign markets
will subject us to foreign regulatory clearances which may impose additional
substantive costs and burdens. 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. Our products also are required to satisfy international
manufacturing standards required by the International Standards Organization for
sale in certain foreign countries. Although our contract manufacturer in
Portugal is seeking to achieve ISO 9002, until the Portuguese manufacturer
obtains ISO 9002 certification, we could have difficulty selling to certain
export accounts, particularly in Europe. Currently, sales to international
relief agencies, our primary market, are not affected by ISO certification or
other foreign regulations other than those imposed by such agencies, with which
we have been in compliance.

Product Acceptance. We expect to derive a significant portion of our revenues
from sales of locking clip syringes and/or licensing of our intellectual
property. Despite increased public awareness of the risks associated with
conventional disposable syringes, of the major syringe manufacturers, only
Becton-Dickinson and our company are manufacturing difficult to reuse syringes
for sale to international relief agencies. Accordingly, our future success and
financial performance will depend almost entirely on our ability to successfully
market our locking clip syringes. We cannot give you any assurances that our
marketing efforts will be successful or that sales of our difficult to reuse
syringes will generate sufficient revenues for us to become profitable. See
"Risk Factors-Government Regulation."

Licensing. Although we intend to license the patents and proprietary
manufacturing processes relating to our locking clip and other syringe designs
to established medical device manufacturers worldwide, we cannot give you any
assurances that we will be successful in our licensing efforts.

Dependence on Certain Customers. Our initial marketing efforts have been
directed primarily to, and all of our revenues have been derived from,
international relief agencies. We cannot give you any assurances as to whether
the international relief agencies will continue to purchase difficult-to-reuse
syringes from us. The failure of international relief agencies to purchase our
locking clip syringes in substantial quantities would have a materially adverse
effect on our business, financial condition and results of operations.

Dependence on Portuguese Contract Manufacturer. We have entered into a letter of
understanding with a Portuguese contract manufacturer for the production of our
proprietary plungers (which satisfy tolerance limits for assembly of our
aspirating and non-aspirating syringes) and for the assembly of our 1cc locking
clip syringes. We are the primary customer of the Portuguese contract
manufacturer. Furthermore, since the Portuguese manufacturer has limited
financial resources, it has been unable to offer us credit terms for payment of
components and finished syringes. If the Portuguese manufacturer is unable or
unwilling to supply sufficient quantities of components, we will be required to
obtain alternative sources of supply. We cannot give you any assurance that we
will be able to obtain an alternative source of supply of components on
acceptable terms. Furthermore, even if we are able to obtain an alternative
source of supply of components, we cannot give you any assurance that production
of our 1cc locking clip syringes will not be delayed. Delays resulting from the
selection of an alternate supplier to produce components could have a materially
adverse effect on our business. See "Risk Factors-Interruptions to Production."

Interruptions to Production. We cannot give you any assurance that the
Portuguese manufacturer will be able to produce sufficient quantities of
plungers or syringes to satisfy our requirements. The failure of the Portuguese
manufacturer to produce components and/or 1cc locking clip syringes could have a
materially adverse effect on our business, financial condition and results of
operations. See "Risk Factors-Dependence on Portuguese Contract Manufacturer."

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         To augment production of our 1cc locking clip syringe, we have
commenced production of the 1cc locking clip syringe at our new production
facility in Farmingdale, New York. However, we cannot give you any assurance
that production at this facility will not be interrupted as a result of delays
in obtaining supplies of components or in complying with FDA manufacturing
requirements, including the attainment of acceptable quality levels. The failure
to timely produce 1cc locking clip syringes would have a materially adverse
effect on our business, financial condition and results of operations.

         Sherwood Davis & Geck has been our supplier of 1cc barrels with certain
sizes of hypodermic needles (e.g., .625 inch) and plunger tips. However, we have
instituted litigation against Sherwood for failure to provide components for the
manufacture of the our lcc syringes. There can be no assurance that Sherwood
will continue to fulfill our purchase orders. To date, most of the lcc locking
clip syringes have not contained the barrels supplied by Sherwood; however,
nearly all of our lcc locking clip syringes have contained a plunger tip
supplied, but not manufactured, by Sherwood. Although smaller manufacturers have
expressed an interest in supplying components, we cannot give you any assurances
that we will be able to obtain adequate supplies of components for prices and
terms acceptable to us. The failure to obtain adequate supplies of components
for acceptable prices and terms could have a materially adverse effect on our
business, financial condition and results of operations.

Limited Experience of Management in the Development, Production and Sale of
Medical Devices. Our management has had limited experience in the development,
production and sale of medical devices. We cannot give any assurance that we
will be able to compete successfully with the major syringe manufacturers.
See "Risk Factors-Limited Operating History."

Ability to Develop 3cc Syringe with Extendable Barrel Sleeve. We intend to
develop a 3cc, non-aspirating, locking clip syringe for hospitals and health
clinics, and anticipate that production will commence during 1999. In general,
hospitals and health clinics use more 3cc syringes than 1cc syringes, and may
not be willing to purchase our 1cc locking clip syringes until such time as we
are able to offer 3cc syringes. However, we cannot give any assurance that the
3cc designs selected for commercialization will be accepted by hospitals and
health clinics. Moreover, we have not yet selected a design for the assembly
equipment or an engineering firm to construct the equipment. Our failure to
timely select a design for the assembly equipment or an engineering firm to
construct such assembly equipment, or our inability to obtain adequate supplies
of components, could delay the production and commercial introduction of our 3cc
non-aspirating syringe.

Uncertainty Regarding Patents and Protection of Proprietary Technology. Our
success will depend, in part, on the strength of our patents, as well as our
ability to preserve our trade secrets and operate without infringing the
proprietary rights of others. Our policy is to seek protection of our
proprietary position by, among other methods, filing United States and foreign
patent applications related to our technology, inventions and improvements that
are important to the development of our business. We hold three United States
patents, including a patent for our locking clip; we have filed a United States
patent application for our aspirating plunger and we have also filed patent
applications for our locking clip in Canada, Brazil, Mexico, certain European
countries, Japan, South Korea, China, Russia and Australia. In addition, we have
acquired licensed rights for a United States patent on a locking device to be
used in connection with the 3cc non-aspirating syringe that we plan to develop.
We have filed for patent protection in certain European countries for this
invention. We also have licensed the rights to a patent to develop a pre-filled
or unit dose syringe. This invention has U.S. patent protection, but lacks
foreign protection.

         We cannot give any assurance that pending or future applications for
patents and trademarks will mature into issued patents, or that we will continue
to develop our own patentable technologies. Furthermore, we cannot give you any
assurance that any of our patents or patents that may be issued to us in the
future will

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not be challenged, invalidated or circumvented in the future or that the rights
granted under such patents 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. Patents issued and patent applications filed
related to medical devices are numerous and accordingly, we cannot give you any
assurances 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. We intend to vigorously protect and defend our patents and other
proprietary rights relating to our proprietary technology. Litigation alleging
infringement claims against us (with or without merit), or instituted by us to
enforce patents and to protect trade secrets or know-how owned by us 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, we 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 our products or processes to avoid infringement. We
cannot give you any assurance that such licenses would be available or, if
available, would be available on terms acceptable to us or that we would be
successful in any attempt to redesign our products or processes to avoid
infringement. Accordingly, an adverse determination in a judicial or
administrative proceeding or failure to obtain necessary licenses could prevent
us from manufacturing and selling our products, which would have a materially
adverse effect on our business, financial condition and results of operations.

         We also rely upon trade secrets, technical know-how and continuing
technological innovation to develop and maintain our competitive position. We
cannot give you any assurance that competitors will not independently develop
substantially equivalent proprietary information and techniques or otherwise
gain access to our proprietary technology, or that we can meaningfully protect
our rights in unpatented proprietary technology.

Competition. Our principal competition is from manufacturers of traditional
disposable syringes. Becton-Dickinson, Sherwood and Terumo Medical Corporation
of Japan 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 we do. To our knowledge, only Becton-Dickinson and Bader &
Partner Medizintechnik GmbH, 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 and
UNIJECT syringes were developed originally for WHO-UNICEF immunization programs.
We cannot give you any assurance that the major syringe manufacturers or others
will not commence production of difficult to reuse syringes, or that we will be
able to successfully compete in this market.

Product Liability. The manufacture and sale of medical products exposes us to
the risk of significant damages from product liability claims. Although we
maintain product liability insurance against product liability claims in the
amount of $5 million per occurrence and $5 million in the aggregate, we cannot
give you any

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assurance that the coverage limits of our insurance policies will be adequate,
or that we will continue to be able to maintain such insurance coverage at
acceptable cost. In addition, any successful claim against us in an amount
exceeding our insurance coverage could have a materially adverse effect on our
business, financial condition or results of operations. Furthermore, we have no
recall insurance for foreign countries or the United States. We intend to apply
for product recall insurance primarily for the United States market. However, we
cannot give you any assurance there that such coverage can be obtained at
acceptable cost.

Ownership of Shares by Management. Our executive officers and directors own
(directly or indirectly) in the aggregate 1,178,825 shares of common stock, or
approximately 39% of the outstanding shares of our common stock (excluding (a)
shares subject to options granted under the Company's stock option plans, and
(b) shares issuable upon conversion of outstanding shares of Series A Preferred
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 our assets.

Dependence on Chief Executive Officer. We are dependent on the experience,
abilities and continued services of Joel Schoenfeld, Chairman of the Board and
Chief Executive Officer for the conduct of our business. Joel Schoenfeld is
employed pursuant to an employment agreement which expires on March 28, 2003.
The loss of the services of Joel Schoenfeld would have a materially adverse
effect on our business and operations.

Limitation on Director Liability. Our certificate of incorporation provides that
a director 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, our certificate of incorporation
provides for mandatory indemnification of directors and officers.

Absence of Dividends on Common Stock. Since inception, we have not paid any cash
dividends on the common stock and we do not anticipate paying such dividends in
the foreseeable future. No dividends may be declared, set aside or paid on the
common stock unless and until all accrued and unpaid dividends on the
outstanding shares of Series A Preferred Stock have been paid in cash or
additional shares of Series A Preferred Stock. Our Board of Directors has the
discretion to decide on the payment of dividends depending upon our earnings,
capital requirements, financial condition and other factors deemed relevant by
our Board.

Possible Adverse Effect of Issuances of Preferred Stock. Our Restated
Certificate of Incorporation authorizes the issuance of 5,000,000 shares of
"blank check" preferred stock with designations, rights and preferences
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 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. The Board of
Directors has authorized the issuance of 5,000 shares of Series A Preferred
Stock, of which 2,072 shares are outstanding, 1,000 shares of Series B
Convertible Preferred Stock, of which 650 shares are outstanding and 1,000
shares of Series C Convertible Preferred Stock, of which 250 shares are
outstanding. We may issue additional shares of convertible preferred stock from
time to time as a means of financing our company.

No Assurance of An Active Public Market for Common Stock. Although the common 
stock is quoted on The Nasdaq SmallCap Market, trading volume has been limited.
We cannot give any assurance that

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broker-dealers will act as market makers for the common. As a result, investors
will be exposed to a risk of a decline in the market price of the common stock.

Possible Volatility of Market Price for the Common Stock. The market price of
the common stock may be highly volatile as has been the case with the securities
of many emerging companies. Our operating results and various factors affecting
the medical device industry may impact the market price of our 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. We cannot
give you any assurance that the market price of the common stock and warrants
will not experience significant fluctuations or further declines.


Possible Delisting. The common stock is quoted on The Nasdaq SmallCap Market.
For continued inclusion on the NASDAQ SmallCap Market, an issuer is required,
among other things, to 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), a bid price of at least $1.00 and at least two
market makers. As of September 30, 1998, we satisfied the maintenance criteria
for continued listing on The Nasdaq SmallCap Market. As of such date, we had net
tangible assets of approximately $2,737,000. The bid price of the our common
stock has exceeded $1.00 per share. We cannot give you any assurance that we
will be able in the future to satisfy the maintenance criteria for continued
inclusion of the common stock and warrants on The Nasdaq SmallCap Market. If we
are 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 NASD's
"Electronic Bulletin Board," and consequently, an investor could find it more
difficult to dispose of, or to obtain accurate quotations as to the price of,
our securities.


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 our securities become subject to the regulations applicable to penny
stocks, the market liquidity for our securities could be severely affected. In
such an event, the regulations on penny stocks could limit the ability of
broker-dealers to sell our securities and thus the ability of purchasers of our
securities to sell their securities in the secondary market.

Shares Eligible for Future Sale. We cannot give any assurance 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

                                        9

<PAGE>



market price of the common stock and also impair our ability to raise capital
through an offering of our equity securities in the future. We have 3,476,246
shares of common stock outstanding, of which only 1,725,050 shares of common
stock are transferable without restriction under the Securities Act. The
remaining shares, issued in private transactions, are "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 ours, who has
beneficially owned restricted securities for at least one year, 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
ours for at least three months and who has beneficially owned restricted
securities for at least two years is entitled to sell such restricted shares
under Rule 144 without regard to any of the limitations described above. Certain
of our securityholders will be able to offer the following blocks of securities
for sale as follows:

         o        Our officers, directors and other securityholders owning
                  and/or having rights to acquire in the aggregate [1,800,746]
                  shares of common stock who have been parties to an agreements
                  not to sell or otherwise dispose of any of our securities,
                  including shares of common stock, without the prior written
                  consent of Maidstone Financial, Inc., managing underwriter for
                  our initial public offering in April 1997 (which has ceased
                  operations as a broker-dealer) will be permitted to sell or
                  dispose of such securities as of April 24, 1999.

         o        Commencing in the second quarter of 1999, 1,121,054 shares of
                  our common stock, will become eligible for resale pursuant to
                  Rule 144, subject to the volume limitations and compliance
                  with the other provisions of Rule 144.


Dilutive Effect of Issuance of Common Stock Upon Exercise of Warrants and
Options. We have 11,769,893 shares of common stock authorized but unissued and
not reserved for specific purposes and 10,567,318 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 our stock option plan),
(ii) upon exercise of outstanding warrants, (iii) upon exercise of the
underwriters' warrants, (iv) upon conversion of our Series A Preferred Stock,
and (v) in connection with private offerings of its securities. Except to the
extent applicable Nasdaq regulations require stockholder approval of
transactions involving the issuance of at least 20% of the common stock at less
than fair market value (other than in a public offering) or the issuance of more
than 25,000 shares to our officers and directors as a group (other than pursuant
to a plan approved by stockholders), authorized shares of our common stock may
be issued without any action or approval by our stockholders. Although we have
no present plans, agreements, commitments or undertakings with respect to the
issuance of additional shares (except with respect to outstanding options,
warrants and convertible securities) or securities convertible into any such
shares, any shares of our common stock issued would further dilute the
percentage ownership held by the public stockholders in our company.

         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),
including shares under this prospectus, may have a depressive effect on the
market price of the common stock. Moreover, the terms upon which we 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 we would, in all likelihood, be able to
obtain any needed capital on terms more favorable to us than those provided in
the warrants and options.

Dilutive Effect of Conversion of Series B and Series C Preferred Stock. If the 
holders of the series B and

                                       10

<PAGE>



series C convertible preferred stock had converted their shares on March 9,
1999, the conversion rate would have been approximately 1,237 shares of common
stock per share of series B or series C convertible preferred stock. The
conversion would have resulted in the issuance of 1,177,100 shares of common
stock, or approximately 33.9% of the outstanding shares before conversion.
Furthermore, if the market price of our common stock were to decline, we would
be required to issue additional shares on conversion of the series B and series
C convertible preferred stock. Accordingly, the conversion of our series B and
Series C convertible preferred stock could have an immediate and significant
adverse effect on the market price of our common stock and would result in
substantial dilution to other stockholders.


                                       11

<PAGE>



                           Forward Looking Statements

         Some of the information in this prospectus may contain forward-looking
statements. Such statements can be identified by the use of forward-looking
terminology such as "may," "will," "expect," "believe," "intend," "anticipate,"
"estimate," "continue" or similar words. These statements discuss future
expectations, estimate the happening of future events or our financial condition
or state other "forward-looking" information. When considering such
forward-looking statements, you should keep in mind the risk factors and other
cautionary statements in this prospectus and the documents that we incorporate
by reference. The risk factors noted in this section and other factors noted
throughout this prospectus, including certain risks and uncertainties, could
cause our actual results to differ materially from those contained in any
forward-looking statement.


                                 Use of Proceeds

         The Company will not receive any proceeds from the sale of shares by
the Selling Securityholder.

                                       12

<PAGE>

                          INFORMATION ABOUT THE COMPANY

         At Univec, Inc., we develop, assemble, license and market safety
hypodermic syringes designed to protect the healthcare worker and patient
against cross-infection. We have received 510(k) clearance from the U.S. Food
and Drug administration to market locking clip syringes in the United States,
and since 1997, we have produced and marketed 1cc locking clip syringes which
are designed to make accidental or deliberate reuse difficult. From time to
time, we also sell other medical devices and we intend to develop other
medication delivery systems.

         We file reports, proxy statements and other information with the SEC.
You may read and copy any document we file at the Public Reference Room of the
SEC at Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549 and at
the Regional Offices of the SEC at Seven World Trade Center, Suite 1300, New
York, New York 10048 and at 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661-2511. Please call 1-800-SEC 0330 for further information
concerning the Public Reference Room. Our filings also are available to the
public from the SEC's website at www.sec.gov. We distribute to our stockholders
annual reports containing audited financial statements.

         We are 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. Any references to our company in this prospectus includes 
UNIVEC, Inc., which merged with us on October 10, 1996, and Rx Ultra, Inc., our 
wholly owned subsidiary.

Information Incorporated by Reference

The SEC allows us to "incorporate by reference" the information we file with it,
which means that we can disclose important information to you by referring to
those documents. The information incorporated by reference is considered to be
part of this prospectus, and information we file later with the SEC will
automatically update and supersede this information. We incorporate by reference
the documents listed below and any future filings we make with the SEC under
Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act until the
offering is completed:

    1. Annual Report on Form 10-KSB for the fiscal year ended December 31, 1997.

    2. Proxy Statement dated December 9, 1998.

    3. Quarterly Reports on Form 10-QSB for the fiscal quarters ended March 31,
       1998, June 30, 1998 and September 30, 1998.

    4. The Current Report on Form 8-K dated April 28, 1998, as amended.

    5. The description of the common stock and warrants contained in our
       Registration Statement on Form 8-A (File No. 0-22413) under Section 12 of
       the Securities Exchange Act, including any amendments or report updating 
       that description.

You may request a copy of these filings, at no cost, by writing or calling us
at:

                                  UNIVEC, INC.
                                 22 Dubon Court
                           Farmingdale, New York 11735
                               Tel: (516) 777-2000
                               Fax: (516) 777-2786
                            Attn: Corporate Secretary

                                       13

<PAGE>


The Company

         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. We believe that our 1cc difficult to reuse
syringes are more effective than competitive syringes and that they are
competitively priced. We are the only company that markets a difficult to reuse
syringe with a 1cc barrel, which is ideal for dispensing accurate dosages of
medicine (e.g., allergy, immunization and insulin medicines) as it is more
difficult to deliver a dosage of .95cc accurately with a syringe barrel greater
than 1cc. In addition, Healthcare workers need aspirating syringes to mix
medications in the syringe barrel and inject medications intravenously.
Furthermore, we believe that aspirating syringes are preferred by diabetes
patients and needle-exchange programs. We do not know of any other company that
offers a lcc aspirating syringe that can be locked.

         We have directed our initial marketing efforts primarily at
international relief agencies, including the International Red Cross, UNICEF and
the World Health Organization ("WHO"), as well as to public hospitals and health
facilities in the Northeastern United States. Under programs administered by
international relief agencies, we have shipped our lcc locking clip syringe to
over 30 countries. We also intend to market our locking clip syringes to (i)
governments of developing countries, (ii) private hospitals and health
facilities in the Northeastern United States, and (iii) distributors in the
United States. We also plan to license our patents and proprietary manufacturing
processes relating to the 1cc locking clip and other syringe designs. To
stimulate demand for our safety syringes, we plan 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
and hepatitis patients, and (iii) liability insurance companies. However, we
cannot give you any assurances that our marketing, promotional and educational
efforts will be successful. See "Risk Factors-Dependence on Certain Customers."

                             ----------------------

                             SELLING SECURITYHOLDER

         The table below sets forth, with respect to the Selling Securityholder,
based upon information available to the Company as of March 1, 1999, the number
of shares of Common Stock beneficially owned, the number of shares of Common
Stock to be sold, and the number of outstanding shares of Common Stock
beneficially owned after the sale of the shares of Common Stock offered hereby.
The Selling Securityholder has not been an officer, director or affiliate of the
Company or had any material relationship with the Company during the preceding
three years, except that the Selling Securityholder acquired 750 shares of
Series B Preferred Stock and Warrants expiring August 1, 2001, to purchase
112,500 common stock at $2.15 per share (subject to adjustment) in connection
with a private placement in July 1998 and acquired beneficial ownership of the
shares of Common Stock offered hereby in connection with a private placement in
February 1999 of 250 shares of Series C Preferred Stock, convertible into common
stock until February 8, 2001, and Warrants expiring February 8, 2002, to
purchase 37,500 shares of common stock at $1.92 per share (subject to
adjustment). In connection with the February 1999 private placement the terms of
the Series B Preferred Stock and the warrant sold in the July 1998 private
placement were amended to be the same as the terms of the preferred stock and
warrants issued in the February 1999 private placement. The following table
assumes that the Selling Securityholder will sell all shares of Common Stock
offered by this Prospectus; however, there can be no assurance that the Selling
Securityholder will sell any or all of the Common Stock.
<TABLE>
<CAPTION>
                                                    Amount and                              Shares of Common
                                               Nature of Beneficial    Shares of Common    Stock Owned After
                    Name                             Ownership         Stock to Be Sold         Offering
- ---------------------------------------------  --------------------- -------------------- --------------------
<S>                                           <C>                     <C>                  <C>    
The Shaar Fund Ltd...........................       1,327,100(1)           347,420(2)             -0-(3)

</TABLE>
                                       14


<PAGE>
- ---------------------------------
     (1)  Represents (i) shares of common stock issuable upon conversion of the
          Series B and Series C Preferred Stock at the recent conversion rate in
          effect and (ii) shares of common stock issuable upon exercise of
          warrants to purchase 150,000 shares. Does not include shares of Common
          Stock issued in payment of dividends on the Series B or Series C
          Preferred Stock or as a result of certain changes in the conversion
          rate thereon.

     (2)  Represents 309,920 shares of common stock issuable upon conversion of 
          the series C preferred stock at the recent conversion rate and an
          additional 37,500 shares issuable upon exercise of common stock
          purchase warrants.

     (3)  Assumes the sale by the Selling Securityholder of the shares of common
          stock offered hereby and the shares of Common Stock being offered
          pursuant to the prospectus included in Registration Statement
          No. 333-62261.

                              PLAN OF DISTRIBUTION

         The Selling Securityholder may sell the 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 Securityholder or purchasers. Sales of 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 Securityholder
in connection therewith. To the Company's knowledge, the Selling Securityholder
has not entered into any underwriting arrangements for the sale of the shares of
Common Stock offered hereby.

         The Selling Securityholder may be deemed to be an "underwriter" within
the meaning of the Securities Act and any profits realized by it may be deemed
to be underwriting commissions. Any broker-dealers that participate in the
distribution of the 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 shares of
Common Stock by the Selling Securityholder is subject to the prospectus delivery
and other requirements of the Securities Act.

         The shares of Common Stock offered hereby have been registered pursuant
to registration rights granted to the Selling Securityholder. All costs,
expenses and fees in connection with the registration of the shares of Common
Stock offered by the Selling Securityholder will be borne by the Company. The
Selling Securityholder is responsible for the payment of brokerage commissions
and discounts incurred in connection with the sale of its shares of Common
Stock. The Company has agreed to indemnify the Selling Securityholder 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 shares of Common Stock offered hereby may not
simultaneously engage in market-making activities with respect to the Common
Stock during the applicable "cooling off" period prescribed by Rule 101 of
Regulation M prior to the commencement of such distribution. In addition, and
without limiting the foregoing, the Selling Securityholder will be subject to
applicable provisions of the Exchange Act and the rules and regulations
thereunder including, without limitation, Rule 102 of Regulation M, which
provisions may limit the timing of purchases and sales of Common Stock by the
Selling Securityholder.

         To the extent required, the Company will use its best efforts to file,
during any period in which offers or

                                       15

<PAGE>



sales of shares of Common Stock are being made by or on behalf of the Selling
Securityholder, one or more amendments or supplements to this 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
shares of Common Stock purchased from a Selling Securityholder, and any
discounts, commissions or concessions allowed or reallowed or paid to
broker-dealers.


                            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"), 1,000 shares of Series B Preferred Stock, 1,000 shares of
Series C Preferred Stock and 4,995,500 shares of "blank check" preferred stock,
$0.001 par value per share. As of February 15, 1999, 3,476,246 shares of Common
Stock, 2,072 shares of Series A Preferred Stock, 700 shares of Series B
Preferred Stock and 250 shares of Series C Preferred Stock were 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, the Certificates of Designation authorizing the Series A
Preferred Stock, the Series B Preferred Stock and the Series C 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 Certificates 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, the
Series B Preferred Stock, the Series C 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 Delaware General
Corporation Law (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, when issued upon
payment of the purchase price set forth on the cover page of the Prospectus,
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.

         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

                                       16

<PAGE>



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 are
outstanding, other than 2,072 shares of Series A Preferred Stock, 650 shares of
Series B Preferred Stock and 250 shares of Series C 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 2,072
shares are outstanding. The terms of the Series A Preferred Stock 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 that it will not declare or pay
any cash dividends on the Series A Preferred Stock without the prior written
consent of the underwriter for Company's the initial public offering.

         Redemption. The Series A Preferred Stock is not subject to redemption.

         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
April 24, 1999. The conversion rate is subject to adjustment in the event of a
stock split, stock dividend, recapitalization, merger, consolidation or certain
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.

         Series B and Series C Preferred Stock. The Board of Directors has
authorized the issuance of up to 1,000 shares of Series B Preferred Stock, of
which 650 shares are outstanding, and 1,000 shares of Series C Preferred Stock,
of which 250 shares are outstanding. The terms of the Series B Preferred Stock,
as amended February 8, 1999, are substantially identical to the terms of the
Series C Preferred Stock. The Series B Preferred Stock and the Series C
Preferred Stock rank on a parity as to dividends and upon liquidation and rank
senior to the Series A Preferrede Stock. The terms of the Series B and Series C
Preferred Stock are as follows:

         Dividend Rights. Holders of Series B and Series C Preferred Stock are 
entitled to receive, prior to the payment of cash dividends on the Common Stock 
or the Series A Preferred Stock, cumulative dividends at the rate

                                       17

<PAGE>



of $50 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 B Preferred Stock are payable, in the sole and absolute discretion
of the Board of Directors, in cash, or shares of Common Stock (based upon the
value 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 B Preferred Stock, unless all cumulative
dividends payable on the Series B Preferred Stock for all prior annual dividend
periods have been paid.

         Redemption. With respect to such shares as to which the holder thereof
has not theretofore furnished an effective conversion notice and only if the
current market price of the Common Stock is not greater than one hundred thirty
percent (130%) of the closing bid price of the Common Stock on July 27, 1998,
the Company may in whole or in part from time to time redeem in cash Series B
Preferred Stock or the Series C Preferred Stock at one hundred thirty-five
percent (135%) of the stated value thereof plus all accrued and unpaid dividends
thereon to the date of redemption.

         Liquidation Rights. Subject to the prior rights of the Company's
creditors and the holders of senior securities, the holders of the Series B and
Series C 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 B and Series C
Preferred Stock and any other series of preferred stock which is in parity with
the Series B and Series C Preferred Stock, ratably in proportion to the full
amount to which each holder would be entitled.

         Conversion Rights. Each share of Series B and Series C Preferred Stock
is convertible into the number of shares of Common Stock having the value of
$1,000, on the basis of the lower of (i) $1.10 per share and (ii) a price equal
to 80% of a price related to the market price for the Common Stock at the time
of conversion, as provided in and subject to the terms and conditions of the
Certificates of Designation defining the Series B and the Series C Preferred
Stock (the "conversion rate"), at the option of the holder thereof. The
conversion rate is subject to adjustment in the event of a stock split, stock
dividend, recapitalization, merger, consolidation or certain other events. The
right of conversion with respect to the shares of the Series B Preferred Stock
and the Series C 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 B or the Series C Preferred Stock.

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

                                  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.

                                       18

<PAGE>


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


No dealer, salesman or any other person
is authorized to give any information or
to make any representations other than
those contained in this Prospectus in
connection with any offer to sell or
sale of the securities to which this                     350,000 SHARES OF      
Prospectus relates and, if given or                        COMMON STOCK         
made, such information or                                                       
representations must not be relied upon                                         
as having been authorized. Neither the                                          
delivery of this Prospectus nor any sale                                        
made hereunder shall, under any                                                 
circumstances, imply that there has been                                        
no change in the facts herein set forth                                         
since the date hereof. This Prospectus                     UNIVEC, INC.         
does not constitute an offer to sell or                                         
to a solicitation of any offer to buy                                           
from any person in any state in which                                           
any such offer or solicitation would be               ----------------------    
unlawful.                                                                       
         ----------------------                             Prospectus          
                                                      ----------------------    
            TABLE OF CONTENTS                                                   
                                                                                
                                   Page                                        
Available Information...............2                                           
The Company.........................3                                           
Risk Factors........................4                                           
Use of Proceeds....................13                                           
Selling Securityholder.............13                                           
Plan of Distribution...............13                                           
Description of Securities..........14                                           
Legal Matters......................17                                           
Experts  ..........................17                                           
                                                                                
         ----------------------                                                 
                                                                                
                                                          March ___, 1999       
   Until ____________, 1999 (25 days                                            
after the date of this Prospectus), all            
dealers that effect transactions in
these securities, whether or not
participating in this offering, 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>




                                     PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.  Other Expenses of Issuance and Distribution.

         The following table sets forth the expenses 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, all
amounts indicated are estimates.


SEC Registration fee...........................................        $   98
Printing expenses (other than stock certificates)..............        $5,000
Legal fees and expenses........................................        $5,000
Miscellaneous..................................................        $2,500

TOTAL..........................................................       $12,598


Item 15.  Indemnification of Directors and Officers.

         Article 6 of the Registrant's Restated Certificate of Incorporation, in
accordance with Section 145 of the DGCL, provides that directors and officers
shall 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 6 of the Registrant's Restated 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 6 of the Registrant's Restated Certificate of Incorporation
provides that a person indemnified under Article 6 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
Restated Certificate of Incorporation by petitioning a court of competent
jurisdiction.

         Article 6 of the Registrant's Restated 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 Restated Certificate of Incorporation, or any statute or
agreement, or otherwise.

                                      II-1

<PAGE>

         Finally, Article 6 of the Registrant's Restated 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 6 of the
Restated 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 7 of the Registrant's Restated 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.

         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.

Item 16.  Exhibits.


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 warrants between the Registrant and the underwriters of the
           Registrant's initial public offering.

4.3*       Form of Warrant Agreement between the Registrant and the
           underwriters of the Registrant's initial public offering.

4.4*       Specimen Common Stock Certificate.

4.5*       Specimen Warrant Certificate (included as Exhibit A to Exhibit 4.3
           herein).

4.8*       Registration Rights Agreement among the Registrant and the holders of
           bridge warrants.
   
4.9**      Certificate of Designation of Series B Preferred Stock.

4.10***    Certificate of Amendment of Certificate of Designation of Series B
           Preferred Stock.

4.11**     Form of Warrant Agreement dated July 27, 1998, between Company and
           Selling Securityholder.

4.12***    Form of Amended and Restated Warrant Agreement, amending and
           restating the Warrant Agreement dated July 27, 1998, between the
           Company and the Selling Securityholder.

4.13**     Registration Rights Agreement dated July 27, 1998, between Company
           and Selling Securityholder.
    
                                      II-2

<PAGE>

   
4.14***    Form of Amended and Restated Registration Rights Agreement,
           amending and restating the Registration Rights Agreement dated
           July 27, 1998, between the Company and the Selling
           Securityholder. 

4.15***    Form of Warrant Agreement dated February 8, 1999, between Company and
           Selling Securityholder.

5.1***     Opinion of Snow Becker Krauss P.C., counsel to the Company.

23.1***    Consent of Snow Becker Krauss P.C. is to be included in Exhibit 5.1 
           to this Registration Statement.

23.2***    Consent of accountants.

24.1****   Power of Attorney
- --------------------------------------------

   *   Incorporated by reference from the Registrant's Registration Statement on
       Form SB-2 (File No. 333-20187) declared effective on April 24, 1997.

  **   Incorporated by reference from the Registrant's Registration Statement on
       Form S-3 (File No. 333-62261) declared effective on December 11, 1999.

 ***   To be filed by amendment.

****   Previously filed.
    
Item 17.  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;

                                      II-3

<PAGE>

                  (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)      Remove from registration by means of a post-effective
                  amendment any of the securities that remain unsold at the
                  termination of the offering.

(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.

                                      II-4

<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 requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the city of Farmingdale, State of New York, on March 16, 1999.
    
UNIVEC, INC.
<TABLE>
<CAPTION>

<S>                                                       <C>    
By        Joel Schoenfeld                                 By        Martin Jacobson
   -------------------------------------                     ------------------------------------------- 
   Joel Schoenfeld                                           Martin Jacobson
   Chairman of the Board of Directors,                       Chief Financial Officer
   Chief Executive Officer and Director                      (Principal Financial and Accounting Officer)
   (Principal Executive Officer)
</TABLE>

         Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>

<S>                                                       <C>    
     Joel Schoenfeld
- --------------------------------------------------
     Joel Schoenfeld
     Chairman of the Board of Directors,
     Chief Executive Officer and Director
     (Principal Executive Officer)

     Alan H. Gold*
- --------------------------------------------------
     Alan H. Gold
     Director

     Martin Jacobson
- --------------------------------------------------
     Martin Jacobson
     Chief Financial Officer
     (Principal Financial and Accounting Officer)

     John Frank*
- --------------------------------------------------
     John Frank
     Director

        
    
     David Jay*
- --------------------------------------------------
     David Jay
     Director
   
                                       *By  Martin Jacobson
                                            ----------------------------------
                                            (Martin Jacobson, Attorney-in-Fact)
    
</TABLE>

                                      II-5






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