ALGOS PHARMACEUTICAL CORP
S-1, 1996-05-22
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<PAGE>
 
<PAGE>
            AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 22, 1996
                                                      REGISTRATION NO.   -
________________________________________________________________________________
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                        ALGOS PHARMACEUTICAL CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
                            ------------------------
 
<TABLE>
<S>                                   <C>                                   <C>
              DELAWARE                                2834                               22-3142274
  (STATE OR OTHER JURISDICTION OF         (PRIMARY STANDARD INDUSTRIAL                (I.R.S. EMPLOYER
   INCORPORATION OR ORGANIZATION)         CLASSIFICATION CODE NUMBER)               IDENTIFICATION NO.)
</TABLE>
 
                            ------------------------
 
                               COLLINGWOOD PLAZA
                                 4900 ROUTE 33
                         NEPTUNE, NEW JERSEY 07753-6804
                                 (908) 938-5959
              (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
       INCLUDING AREA CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                            ------------------------
 
                                  JOHN W. LYLE
                        ALGOS PHARMACEUTICAL CORPORATION
                               COLLINGWOOD PLAZA
                                 4900 ROUTE 33
                         NEPTUNE, NEW JERSEY 07753-6804
                                 (908) 938-5959
           (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)
                            ------------------------
 
                                   COPIES TO:
 
<TABLE>
<S>                                                       <C>
                     RAYMOND Y. LIN                                         THOMAS E. CONSTANCE
                    LATHAM & WATKINS                                           MARK B. SEGALL
              885 THIRD AVENUE, SUITE 1000                           KRAMER, LEVIN, NAFTALIS & FRANKEL
                NEW YORK, NEW YORK 10022                                      919 THIRD AVENUE
                     (212) 906-1200                                       NEW YORK, NEW YORK 10022
                                                                               (212) 715-9100
</TABLE>
 
                            ------------------------
 
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable on or after the effective date of this Registration Statement.
 
     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, check the following box.  [ ]
                            ------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                                        MAXIMUM         PROPOSED MAXIMUM        AMOUNT OF
 TITLE OF EACH CLASS OF SECURITIES                                  OFFERING PRICE          AGGREGATE         REGISTRATION
         TO BE REGISTERED             AMOUNT TO BE REGISTERED(1)     PER SHARE(2)     OFFERING PRICE(1)(2)         FEE
<S>                                   <C>                           <C>               <C>                     <C>
 
Common Stock, par value $.01 per
  share............................        4,025,000 shares             $16.00           $64,400,000.00        $22,207.05
</TABLE>
 
(1) Includes shares issuable upon  exercise of the Underwriters'  over-allotment
    option.
 
(2) Estimated  solely for purposes of  calculating the registration fee pursuant
    to Rule 457 of the Securities Act of 1933.
                            ------------------------
 
     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 COMMISSION, ACTING PURSUANT TO SAID SECTION  8(a),
MAY DETERMINE.
 
________________________________________________________________________________

<PAGE>
 
<PAGE>
                             CROSS-REFERENCE SHEET
 
     (PURSUANT  TO ITEM  501(B) OF  REGULATION S-K  SHOWING THE  LOCATION IN THE
PROSPECTUS OF THE RESPONSES TO THE ITEMS OF PART I OF FORM S-1).
 
<TABLE>
<CAPTION>
                             ITEM NUMBER AND CAPTION                          LOCATION AND CAPTION IN PROSPECTUS
      ---------------------------------------------------------------------  ------------------------------------
 
<C>   <S>                                                                    <C>
  1.  Forepart of the Registration Statement and Outside Front Cover Page    
        of Prospectus......................................................  Outside Front Cover Page
  2.  Inside Front and Outside Back Cover Pages of Prospectus..............  Inside Front and Outside Back Cover
                                                                               Pages
  3.  Summary Information, Risk Factors and Ratio of Earnings to Fixed       Prospectus Summary; Risk Factors
        Charges............................................................
  4.  Use of Proceeds......................................................  Use of Proceeds
  5.  Determination of Offering Price......................................  Underwriting
  6.  Dilution.............................................................  Dilution
  7.  Selling Security Holders.............................................  Not Applicable
  8.  Plan of Distribution.................................................  Underwriting
  9.  Description of Securities to be Registered...........................  Description of Capital Stock
 10.  Interests of Named Experts and Counsel...............................  Legal Matters; Experts
 11.  Information with Respect to the Registrant...........................  Outside Front Cover Pages;
                                                                               Prospectus Summary; Risk Factors;
                                                                               Capitalization; Dividend Policy;
                                                                               Dilution; Selected Financial
                                                                               Information; Management's
                                                                               Discussion and Analysis of
                                                                               Financial Condition and Results of
                                                                               Operations; Business; Management
                                                                               and Key Scientific Advisors;
                                                                               Principal Stockholders; Certain
                                                                               Relationships and Related
                                                                               Transactions; Description of
                                                                               Capital Stock; Shares Eligible For
                                                                               Future Sale; Underwriting;
                                                                               Additional Information; Financial
                                                                               Statements
 12.  Disclosure of Commission Position on Indemnification for Securities    
        Act Liabilities....................................................  Not Applicable
</TABLE>

<PAGE>
 
<PAGE>
                SUBJECT TO COMPLETION, DATED              , 1996
 
PROSPECTUS
 
[LOGO]                           3,500,000 SHARES
                        ALGOS PHARMACEUTICAL CORPORATION
                                  COMMON STOCK
 
                          ---------------------------
 
 
     All   of  the  shares  of  Common  Stock  (the  'Common  Stock')  of  Algos
Pharmaceutical  Corporation  ('Algos'or  the  'Company')  offered  hereby   (the
'Offering')  are being sold by  the Company. At the  request of the Company, the
Underwriters have  reserved 300,000  shares  of Common  Stock  for sale  at  the
initial  public offering price to certain of the Company's employees and certain
other persons.  If such  shares are  not purchased  by such  employees or  other
persons  they will be offered  by the Underwriters to  the public upon the terms
and conditions set forth in this Prospectus. See 'Underwriting.'
 
     Prior to this  Offering, there  has been no  public market  for the  Common
Stock.  It is currently estimated that the initial public offering price will be
between $14.00 and $16.00 per share. See 'Underwriting' for information relating
to the  factors to  be considered  in determining  the initial  public  offering
price.  Application will be made to list the Common Stock on the Nasdaq National
Market ('Nasdaq') under the symbol 'ALGO.'
 
                          ---------------------------
 
    THE SHARES OF COMMON STOCK OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK.
                    SEE 'RISK FACTORS' BEGINNING ON PAGE 6.
 
                          ---------------------------
 
THESE SECURITIES  HAVE  NOT  BEEN  APPROVED OR  DISAPPROVED  BY  THE  SECURITIES
   AND    EXCHANGE   COMMISSION   OR   ANY   STATE   SECURITIES   COMMISSION,
      NOR  HAS  THE  SECURITIES  AND  EXCHANGE  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....................................           $                     $                     $
Total(3).....................................           $                     $                     $
</TABLE>
 
(1) The Company  has  agreed  to  indemnify  the  Underwriters  against  certain
    liabilities,  including  liabilities under  the Securities  Act of  1933, as
    amended. See 'Underwriting.'
 
(2) Before deducting expenses payable by the Company estimated at $800,000.
 
(3) The Company has granted to the  Underwriters a 30-day option to purchase  up
    to  525,000 additional shares on the same  terms and conditions as set forth
    above, solely to cover over-allotments, if any. If such option is  exercised
    in  full, the total Price to  Public, Underwriting Discounts and Commissions
    and Proceeds to  Company will  be $                 , $                  and
    $            , respectively. See 'Underwriting.'
                          ---------------------------
 
     The  shares of Common Stock  offered by this Prospectus  are offered by the
Underwriters, subject to prior sale, to withdrawal, cancellation or modification
of the offer without  notice,  to delivery and to acceptance by the Underwriters
and  to certain further conditions. It is expected that delivery of certificates
representing  the  shares  of Common Stock will be made at the offices of Lehman
Brothers Inc., New York, New York, on  or about             , 1996.
                          ---------------------------
 
LEHMAN BROTHERS
                               COWEN & COMPANY
                                                             ABB AROS SECURITIES
 
             , 1996
 
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 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
STATES.
 
<PAGE>
 
<PAGE>
    The following table  lists the  Company's ten products  in development  that
have  reached Phase  II clinical  trials, their  respective intended therapeutic
indications and current stage of development. There can be no assurance that any
of these products will be developed successfully or approved by the FDA.
 
<TABLE>
<CAPTION>
                                         ALGOS PRODUCTS IN DEVELOPMENT
 
              PRODUCT                              INDICATION                       STAGE OF DEVELOPMENT
- ------------------------------------  ------------------------------------  ------------------------------------
 
<S>                                   <C>                                   <C>
NARCOTIC ANALGESICS
MorphiDex'tm'                         Moderate to severe                    Two Phase I/II clinical trials
                                      pain (primarily cancer pain)          completed.
                                                                            Phase II clinical trial in progress.
                                                                            Additional Phase II clinical trials
                                                                            scheduled in 1996.
 
HydrocoDex SR'tm' and HydrocoDex      Moderate to moderately severe pain    Phase II clinical trial scheduled in
Plus'tm'                              (primarily post-operative,            1996.
                                      musculoskeletal and trauma-related
                                      pain)
 
OxycoDex'tm'                          Moderate to moderately severe pain    Phase II clinical trial in progress.
                                      (primarily post-operative pain)       Additional Phase II clinical trial
                                                                            scheduled in 1996.
 
NON-NARCOTIC ANALGESICS
Ibuprofen/NMDA Antagonist             Over-the-counter ('OTC') analgesic    One Phase II clinical trial
Combination                                                                 completed.
                                                                            Additional Phase II clinical trial
                                                                            scheduled in 1996.
 
Acetaminophen/NMDA Antagonist         OTC analgesic                         Phase II clinical trial in progress.
Combination
 
LOCAL ANESTHETICS
Lidocaine/NMDA Antagonist             Injectable local anesthetic for       Phase II clinical trial scheduled in
Combination                           dental procedures and in-patient and  1996.
                                      out-patient surgeries
 
OTHERS
Urge Urinary Incontinence Treatment   Urge urinary incontinence             Phase II clinical trial in progress.
 
Opiate Addiction Treatment            Opiate addiction                      Phase II clinical trial scheduled in
                                                                            1996.
 
Cocaine Addiction Treatment           Cocaine addiction                     Phase II clinical trial scheduled in
                                                                            1996.
</TABLE>
 
    The following  are  trademarks  of the  Company:  MorphiDex'tm',  HydrocoDex
SR'tm', HydrocoDex Plus'tm' and OxycoDex'tm'.
                            ------------------------
    IN  CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH  STABILIZE OR  MAINTAIN  THE MARKET  PRICE OF  THE  COMPANY'S
COMMON  STOCK AT A  LEVEL ABOVE THAT  WHICH MIGHT OTHERWISE  PREVAIL IN THE OPEN
MARKET. SUCH TRANSACTIONS MAY BE EFFECTED ON THE NASDAQ NATIONAL MARKET, IN  THE
OVER-THE-COUNTER  MARKET OR  OTHERWISE. SUCH  STABILIZING, IF  COMMENCED, MAY BE
DISCONTINUED AT ANY TIME.
 
                                       2
<PAGE>
 
<PAGE>
                               PROSPECTUS SUMMARY
 
     The  following summary is qualified in its  entirety by, and should be read
in conjunction with, the more detailed information and the financial  statements
and  notes  thereto appearing  elsewhere  in this  Prospectus.  Unless otherwise
indicated, all information in  the Prospectus (i) gives  effect to a  8.30-for-1
stock  split in  the form  of a stock  dividend declared  in May  1996, and (ii)
assumes no exercise of the Underwriters' over-allotment option.
 
                                  THE COMPANY
 
     Algos Pharmaceutical Corporation ('Algos' or the 'Company') is a leader  in
developing a new generation of proprietary pain management products. Independent
research,  the Company's pre-clinical  studies and initial  clinical trials have
shown that the  Company's products  may significantly improve  pain relief  over
currently  available  analgesics,  including narcotic  drugs  such  as morphine,
hydrocodone and  oxycodone and  non-narcotic  analgesics such  as  acetaminophen
(e.g.  Tylenol'r'), ibuprofen (e.g. Advil'r') and naproxen (e.g. Aleve'r' ). The
Company is  also developing  a  local anesthetic  product  that is  expected  to
provide  greater anesthetic effect with longer and more controlled duration than
existing products. The Company develops its proprietary pain management products
by combining existing  analgesic or anesthetic  drugs with  N-methyl-D-aspartate
('NMDA')  antagonist  drugs  that have  been  approved  for human  use  in other
applications. The  Company's  analgesic  and  anesthetic  products  will  target
markets  with  combined  1995 U.S.  sales  estimated  at over  $6.4  billion. In
addition, the  Company  is  using  its NMDA  antagonist  technology  to  develop
products to treat urge urinary incontinence and opiate and cocaine addiction.
 
     The  Company believes that  its analgesic and  anesthetic products have the
potential for more rapid market introduction  than many other new drugs  because
(i) the Company's products combine existing drugs whose separate safety profiles
are  known  and established  and  (ii) clinical  trials  for new  analgesics and
anesthetics historically have  achieved statistically  significant results  with
fewer  patients than  may be  required for  many other  drugs. As  a result, the
Company currently anticipates that it will  file its first New Drug  Application
('NDA') with the Food and Drug Administration ('FDA') in 1997.
 
     The  Company has ten  products that have reached  Phase II clinical trials.
The Company has completed or is  currently conducting seven clinical trials  for
four  of its products, and has scheduled Phase II clinical trials to commence in
1996 for an additional  six products. The Company's  products that have  reached
Phase II consist of:
 
          (i)  four  narcotic  analgesic/NMDA  antagonist  combination products:
     MorphiDex'tm',  expected  to  be  used  primarily  to  treat  cancer  pain,
     HydrocoDex SR'tm' and HydrocoDex Plus'tm', expected to be used primarily to
     treat  moderate  to moderately  severe post-operative,  musculoskeletal and
     trauma-related pain, and  OxycoDex'tm', expected  to be  used primarily  to
     treat moderate to moderately severe post-operative pain;
 
          (ii)    two   over-the-counter   ('OTC')   analgesic/NMDA   antagonist
     combination products:  a combination  product of  an NMDA  antagonist  with
     acetaminophen, the largest selling OTC analgesic, and a combination product
     of an NMDA antagonist with ibuprofen, the largest selling OTC non-steroidal
     anti-inflammatory drug ('NSAID');
 
          (iii)   one  injectable  local   anesthetic/NMDA  combination  product
     expected  to  provide  greater  anesthetic  effect  with  longer  and  more
     controlled  duration  for  use  in  dental  procedures  and  in-patient and
     out-patient surgeries;
 
          (iv) one product that uses an NMDA antagonist intended as a  treatment
     for urge urinary incontinence, a condition which afflicts an estimated five
     million people in the U.S.; and
 
          (v)  two products that are  currently being developed in collaboration
     with the National Institute on Drug Abuse ('NIDA'), National Institutes  of
     Health ('NIH'), intended as treatments for opiate and cocaine addiction.
 
                                       3
 
<PAGE>
 
<PAGE>
     The  Company believes that the markets in which it intends to compete offer
attractive opportunities.  Favorable factors  in  the target  analgesic  markets
include:  high  growth  rates  partially  attributable  to  the  rapidly growing
population segment aged 65 and older; increasing recognition of the  therapeutic
benefits  of  effective  pain  treatment  including  reductions  in  healing and
recovery time;  generally concentrated  distribution channels  that permit  more
cost-effective  selling and marketing;  lack of recent  product innovation which
has resulted in  market segments  comprised largely of  older off-patent  drugs;
higher  profit margins from branded proprietary  products; and the potential for
rapid acceptance  of  new pain  management  pharmaceuticals by  members  of  the
medical  profession. The market  for local anesthetics  also presents attractive
opportunities for  the Company's  controlled duration  product because  existing
local  anesthetics have limited  and less controllable  duration which restricts
their use in surgery. The Company believes the markets for its products to treat
urge urinary incontinence and  drug addiction present significant  opportunities
because  of the  lack of  satisfactory pharmaceutical  treatments and  the large
potential market sizes.
 
     The Company's strategic goal is to establish a leading position in the pain
management pharmaceutical market. The Company  intends to achieve this goal  by:
(i) introducing superior proprietary products; (ii) minimizing development time,
cost  and  risk; (iii)  leveraging  its proprietary  technology  across multiple
product opportunities; (iv) outsourcing to efficiently deploy resources; and (v)
maximizing market  penetration and  margin potential  through a  combination  of
Company direct sales and strategic alliances.
 
     The  Company  seeks to  protect its  proprietary  position by,  among other
methods, filing United States  and foreign patent  applications with respect  to
the  development of its  products. The Company has  exclusive licenses for three
issued U.S.  patents and  six U.S.  patent applications  pending and  holds  one
additional U.S. patent application pending.
 
     The Company was incorporated in Delaware in 1992. Its executive offices are
located  at Collingwood Plaza, 4900 Route 33, Neptune, New Jersey 07753, and its
telephone number is (908) 938-5959.
 
                                  THE OFFERING
 
<TABLE>
<S>                                               <C>
Common Stock offered by the Company.............  3,500,000 shares
Common Stock to be outstanding after the
  Offering......................................  15,544,119 shares(1)
Use of Proceeds.................................  To fund research and product development, the establishment of
                                                    a direct sales force, working capital and for other general
                                                    corporate purposes. See 'Use of Proceeds.'
Proposed Nasdaq National Market symbol..........  ALGO
</TABLE>
 
- ------------
 
(1) Excludes 975,665  shares of  Common  Stock reserved  for issuance  upon  the
    exercise  of  outstanding options  and warrants,  exercisable at  a weighted
    average  exercise  price  of  $0.45  per  share.  See  'Management  and  Key
    Scientific Advisors -- Stock Option Plans.'
 
                                       4
 
<PAGE>
 
<PAGE>
                         SUMMARY FINANCIAL INFORMATION
 
<TABLE>
<CAPTION>
                                                                                                  THREE MONTHS
                                                                                                      ENDED
                                                             YEAR ENDED DECEMBER 31,                MARCH 31,
                                                     ----------------------------------------    ---------------
                                                     1992       1993        1994       1995      1995      1996
                                                     -----      -----      -------    -------    -----    ------
                                                                (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                  <C>        <C>        <C>        <C>        <C>      <C>
STATEMENT OF OPERATIONS DATA:
Revenues..........................................   $  96(1)   $ 215(1)   $ --       $ --       $--      $ --
Operating expenses:
     Research and development.....................     125         40          654      1,615      381       400
     General and administrative...................     369        436          623        760      235       211
                                                     -----      -----      -------    -------    -----    ------
          Total operating expenses................     494        476        1,277      2,375      616       611
                                                     -----      -----      -------    -------    -----    ------
Interest income...................................      13          4          153        253       71        43
                                                     -----      -----      -------    -------    -----    ------
Net loss..........................................   $(385)     $(257)     $(1,124)   $(2,122)   $(545)   $ (568)
                                                     -----      -----      -------    -------    -----    ------
                                                     -----      -----      -------    -------    -----    ------
Pro forma net loss per common share(2)............                                    $ (0.18)            $(0.05)
                                                                                      -------             ------
                                                                                      -------             ------
Pro forma weighted average common shares
  outstanding(2)..................................                                     12,099             12,211
                                                                                      -------             ------
                                                                                      -------             ------
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                 MARCH 31, 1996
                                                                                              ---------------------
                                                                                                            AS
                                                                                              ACTUAL    ADJUSTED(3)
                                                                                              ------    -----------
                                                                                                 (IN THOUSANDS)
<S>                                                                                           <C>       <C>
BALANCE SHEET DATA:
Cash and cash equivalents..................................................................   $3,095      $51,120
Working capital............................................................................    2,875       50,900
Total assets...............................................................................    3,197       51,222
Deficit accumulated during the development stage...........................................   (4,456)      (4,456)
Total stockholders' equity.................................................................    2,970       50,995
</TABLE>
 
- ------------
 
(1) Represents  revenues  from consulting  activities in  which the  Company has
    ceased to engage.
 
(2) Adjusted to  give effect  to  the automatic  conversion of  all  outstanding
    shares of Series A Preferred Stock (the 'Preferred Stock') into Common Stock
    upon consummation of the Offering. See Note 2 to the Financial Statements.
 
(3) As  adjusted to  give effect  to the Offering  at an  assumed initial public
    offering price  of  $15.00  per  share  (after  deducting  the  underwriting
    discounts  and commissions and estimated  offering expenses) and the receipt
    of the net proceeds therefrom. See 'Use of Proceeds' and 'Capitalization.'
 
                                       5
<PAGE>
 
<PAGE>
                                  RISK FACTORS
 
     An  investment in the shares of Common Stock offered hereby involves a high
degree of risk. The following factors,  in addition to the other information  in
this  Prospectus, should be  carefully considered in  evaluating the Company and
its business before purchasing the shares of Common Stock offered hereby.
 
Early Stage of the Company; Continuing Losses; Uncertainty of Future
Profitability
 
     Since its formation in January 1992, the Company has been engaged primarily
in  organizational  and  start-up   activities,  conducting  the  research   and
development programs described in this Prospectus, recruiting outside directors,
officers  and  key  scientists,  and  negotiating  and  consummating  technology
licensing and  research agreements.  The Company  has no  revenues from  product
sales  and no history of manufacturing  or marketing. To date, substantially all
of its  funding  has been  provided  by contributions  of  capital made  by  its
founders  and through  a private  placement of  700,000 shares  of its Preferred
Stock. There  can be  no assurance  that the  Company will  have any  source  of
revenue  or that its operations will  eventually generate sufficient revenues to
achieve profitability. The Company has  experienced losses since its  inception.
The  Company had  accumulated losses of  $4,456,160 through March  31, 1996, and
losses are continuing and are expected  to continue for the foreseeable  future.
Therefore,  the Company has a  limited history upon which  investors may base an
evaluation of its likely performance. The Company's prospects must be considered
in  light  of  the  problems,  expenses,  complications  and  delays  frequently
encountered  in connection with the formation of a new business, the development
of new  pharmaceutical products,  including obtaining  the necessary  regulatory
approvals,   the  utilization   of  unproven  technology   and  the  competitive
environment in which the Company plans to operate.
 
Uncertainty Associated with Pre-clinical Studies and Clinical Trials
 
     In order to receive regulatory approval to sell its products  commercially,
the  Company must demonstrate  in pre-clinical studies  and clinical trials that
its potential products are safe and effective in humans. To date, three clinical
trials have been completed on two of the Company's products and such trials were
limited in scope.  Although the  results of the  Company's initial  pre-clinical
studies  and  clinical trials  to  date have  been  encouraging, the  results of
initial  pre-clinical  studies  and  clinical  trials  are  not  by   themselves
predictive  of results that  will be obtained from  subsequent or more extensive
testing. Furthermore, there can be no assurance that clinical trials of products
under development will demonstrate the safety  and efficacy of such products  to
the  extent  necessary  to  obtain  regulatory  approvals.  Many  pharmaceutical
companies have suffered significant setbacks  in advanced clinical trials,  even
after promising results in earlier trials. The failure to adequately demonstrate
the  safety and efficacy of a product could delay or prevent regulatory approval
of such product and could have a material adverse effect on the Company.
 
     The rate of completion  of clinical trials is  dependent upon, among  other
factors,  the  enrollment of  patients. Patient  accrual is  a function  of many
factors, including the size of the patient population, the proximity of patients
to clinical sites, the eligibility criteria  for the study and the existence  of
competitive  clinical  trials.  Delays  in  planned  patient  enrollment  in the
Company's current  trials or  future  clinical trials  may result  in  increased
costs, program delays or both, which could have a material adverse effect on the
Company.  There can be  no assurance that  if clinical trials  are completed the
Company will be able to submit an NDA as scheduled or that any such  application
will  be reviewed and  approved by the  FDA in a  timely manner, or  at all. See
'Business -- Government Regulation.'
 
Uncertainty of Market Acceptance
 
     Even if regulatory approvals are obtained, uncertainty exists as to whether
the Company's products will be accepted by  the market. A number of factors  may
limit  the market acceptance of the  Company's products, including the timing of
regulatory approval  and  market entry  relative  to competitive  products,  the
availability  of  alternative  products,  the price  of  the  Company's products
relative to alternative products, the availability of third-party  reimbursement
and  the  extent  of marketing  efforts  by third-party  distributors  or agents
retained by the Company. There can be no assurance of the Company's ability,  or
the  length  of time  required, to  achieve market  acceptance of  the Company's
products. In
 
                                       6
 
<PAGE>
 
<PAGE>
addition, certain of  the Company's products  contain narcotic ingredients  that
may  require stringent  record-keeping obligations,  strict storage requirements
and other  limitations  on  such  products'  availability  that  may  limit  the
commercial  usage  of  such  products. See  'Business  --  Market  Overview' and
' -- Products.'
 
Competition and Technological Changes, Uncertainty and Obsolescence
 
     The  Company's  success  will  depend,   in  part,  upon  its  ability   to
successfully  achieve market  share at the  expense of  existing and established
products in  the  Company's  target  markets. The  Company's  products  will  be
competing  directly with the products of companies that are well-established and
which may have a significantly higher  degree of brand and name recognition  and
substantially more financial resources than those of the Company. The Company is
also  in competition  with other  pharmaceutical companies,  hospitals, research
organizations, individual scientists and non-profit organizations engaged in the
development of new pain management pharmaceuticals. Many of these companies  and
entities   have  greater   research  and   development  capacities,  experience,
recognition and marketing, financial and  managerial resources than the  Company
and  represent  significant competition  for  the Company.  Also,  the Company's
competitors may succeed in developing  competing technologies and obtaining  FDA
approval  for products more rapidly than the  Company. There can be no assurance
that  developments  by  others  will  not  render  the  Company's  products   or
technologies non-competitive or obsolete.
 
Government Regulation; No Assurance of United States or Foreign Regulatory
Approval
 
     The  FDA and  comparable agencies  in foreign  countries impose substantial
requirements on the introduction of therapeutic pharmaceutical products  through
lengthy  and  detailed  laboratory and  clinical  testing and  other  costly and
time-consuming procedures. Satisfaction of these requirements typically takes  a
number  of  years,  varies substantially  based  upon the  type,  complexity and
novelty of the pharmaceutical products and is subject to uncertainty. Government
regulation  also  affects  the  manufacture  and  marketing  of   pharmaceutical
products.  Regulatory approvals, if granted, may include significant limitations
on the indicated  uses for which  a product  may be marketed.  The FDA  actively
enforces  regulations prohibiting  marketing of products  for non-indicated use.
Failure to comply with applicable  regulatory requirements can result in,  among
other  things, government imposed  fines, suspensions of  approvals, seizures or
recalls  of  products,   operating  restrictions   and  criminal   prosecutions.
Furthermore,  changes  in existing  regulations or  adoption of  new regulations
could prevent  the Company  from  obtaining, or  affect  the timing  of,  future
regulatory  approvals.  The  effect of  government  regulation may  be  to delay
marketing of the Company's  new products for a  considerable period of time,  to
impose  costly  procedures  upon  the  Company's  activities  and  to  furnish a
competitive advantage to larger companies  that compete with the Company.  There
can  be no  assurance that  FDA or  other regulatory  approval for  any products
developed by the Company will be granted on a timely basis, if at all. Any  such
delay  in obtaining, or failure to obtain, such approvals would adversely affect
the marketing of  the Company's  products and  the ability  to generate  product
revenue.  The Company is also subject to certain Drug Enforcement Agency ('DEA')
regulations,   including   restrictions    on   storage,   transportation    and
administration, for its narcotic products. Government regulation may increase at
any time, creating additional hurdles for the Company. The extent of potentially
adverse  government  regulation which  might  arise from  future  legislation or
administrative  action  cannot  be   predicted.  See  'Business  --   Government
Regulation.'
 
Need for Additional Funds
 
     The  amount and  timing of  the Company's  expenditures will  depend on the
progress of its  research and  development, the  cost and  timing of  regulatory
approvals,  general  market  conditions, relationships  with  possible strategic
partners, changes  in the  focus and  direction of  the Company's  research  and
development  programs, competitive and technological advances and other factors.
The Company's cash requirements may vary  materially from those now planned  and
no  assurance can be  given that development  costs will not  exceed the amounts
budgeted for such purposes. The Company  may require additional funding for  its
research  and  product  development  programs,  operating  expenses,  regulatory
clearances and sales and marketing expenses. Adequate funds for these  purposes,
whether obtained
 
                                       7
 
<PAGE>
 
<PAGE>
through  financial markets or  through collaborative or  other arrangements with
partners or from other  sources, may not  be available when  needed or on  terms
acceptable  to the Company. Insufficient funds may require the Company to delay,
scale back or eliminate certain of  its research and development programs or  to
make  arrangements with third parties  to commercialize products or technologies
that the  Company would  otherwise seek  to  develop itself.  As a  result,  the
Company  may not  be able to  independently develop  any or all  of the products
described in  this  Prospectus. To  the  extent the  Company  raises  additional
capital by issuing securities, further dilution to investors may result.
 
Limited Sales and Marketing Experience
 
     The  Company  intends  to  market  and sell  certain  of  its  products, if
successfully developed and approved, through a direct sales force in the  United
States.  The Company currently has no marketing  and sales staff, and has yet to
establish any product distribution arrangements. In order to market its products
directly, the Company must develop a sales force with technical expertise. There
can be no assurance that  the Company will be  able to successfully establish  a
direct  sales organization or distribution  arrangements. Failure to establish a
sales force capability in  the U.S. may  have a material  adverse effect on  the
Company.
 
Dependence on Qualified Personnel
 
     Because of the specialized scientific nature of the Company's business, the
Company  is highly  dependent upon its  ability to attract  and retain qualified
scientific and  technical  personnel. The  loss  of significant  scientific  and
technical  personnel or  the failure  to recruit  additional key  scientific and
technical personnel could have a material  adverse effect on the Company.  While
the   Company  has  consulting  agreements  with  certain  key  individuals  and
institutions and has employment agreements with its key executives, there can be
no assurance that the Company will be successful in retaining such personnel  or
their  services under  existing agreements.  See 'Management  and Key Scientific
Advisors' and ' -- Executive  Compensation and Employment Agreements.' There  is
intense  competition  for  qualified personnel  in  the areas  of  the Company's
activities, and there  can be  no assurance  that the  Company will  be able  to
continue  to  attract  and  retain the  qualified  personnel  necessary  for the
development of its business.
 
Uncertain Ability to Protect Proprietary Technology
 
     The Company's success, competitive position and amount of potential  future
income  will depend in part on its  ability to obtain patent protection relating
to the technologies, processes and products it is developing and may develop  in
the  future.  The Company's  policy  is to  seek  patent protection  and enforce
intellectual property rights. With  respect to its  products, the Company  holds
one  U.S. patent application pending and has exclusive licenses for three issued
U.S. patents and six U.S. patent applications pending. No assurance can be given
that any  patent issued  or  licensed to  the  Company will  provide  protection
against  competitive  products  or  otherwise be  commercially  viable.  In this
regard, the  patent position  of pharmaceutical  compounds and  compositions  is
particularly  uncertain. Even issued patents may later be modified or revoked by
the United States Patent and Trademark  Office ('PTO') or in legal  proceedings.
Moreover,  the  Company  believes that  obtaining  foreign patents  may  be more
difficult than obtaining domestic patents because of differences in patent laws,
and accordingly, its patent position may be stronger in the U.S. than abroad. In
addition, foreign patents may be more  difficult to protect and/or the  remedies
available may be less extensive than in the U.S. Patent applications in the U.S.
are  maintained  in  secrecy  until  patents  issue  and,  since  publication of
discoveries in the scientific  or patent literature tends  to lag behind  actual
discoveries,  the Company cannot be certain that it was the first creator of the
inventions covered by pending  patent applications or the  first to file  patent
applications  on such  inventions. No  assurance can  be given  that any  of the
Company's pending patent applications  will be allowed,  or if allowed,  whether
the  scope of  the claims  allowed will be  sufficient to  protect the Company's
products.
 
     The Company also expects to  rely upon trade secrets, know-how,  continuing
technological  innovations and  licensing opportunities to  develop and maintain
its competitive position. There can be
 
                                       8
 
<PAGE>
 
<PAGE>
no assurance that others will not independently develop substantially equivalent
proprietary information or be  issued patents that may  prevent the sale of  the
Company's  products  or  know-how  or  require  licensing  and  the  payment  of
significant fees or royalties by the  Company in order to produce its  products.
Moreover,  there  can be  no assurance  that the  Company's technology  does not
infringe upon any valid claims of patents  owned by others. If the Company  were
found  to be infringing on  a patent held by another,  the Company might have to
seek a license to use the patented  technology. There can be no assurance  that,
if  required,  the Company  would  be able  to obtain  such  a license  on terms
acceptable to the  Company, if  at all.  If a legal  action were  to be  brought
against  the Company or its licensors, the Company could incur substantial costs
in defending itself, and there can be no assurance that such an action would  be
resolved  in the Company's favor. If such  a dispute were to be resolved against
the Company,  the  Company could  be  subject  to significant  damages  and  the
testing,  manufacture or sale  of one or  more of the  Company's technologies or
proposed products, if developed, could be enjoined.
 
     No assurance can be given as to  the degree of protection any patents  will
afford,  whether patents will be  issued or whether the  Company will be able to
avoid violating or infringing upon patents issued to others. Despite the use  of
confidentiality  agreements and non-compete agreements,  which themselves may be
of limited effectiveness,  it may be  difficult for the  Company to protect  its
trade  secrets. See 'Business -- Patents,  Trade Secrets and Licenses' and 'Risk
Factors -- Dependence on Qualified Personnel.'
 
Uncertain Availability of Health Care Reimbursement
 
     The Company's ability  to commercialize  its pain  management products  may
depend  in  part on  the extent  to which  reimbursement for  the costs  of such
products will be  available from government  health administration  authorities,
private  health insurers and others. There  can be no assurance that third-party
insurance coverage will be  adequate for the Company  to establish and  maintain
price  levels  sufficient  for  realization  of  an  appropriate  return  on its
investment. Government,  private  insurers  and  other  third-party  payers  are
increasingly  attempting to contain health care  costs by limiting both coverage
and the level of  reimbursement for new products  approved for marketing by  the
FDA and by refusing, in some cases, to provide any coverage for uses of approved
products  for indications for which the  FDA has not granted marketing approval.
If adequate coverage and reimbursement levels are not provided by government and
third-party payers for uses of the Company's products, the market acceptance  of
these products could be adversely affected.
 
No Product Liability Insurance
 
     The Company will be exposed to potential product liability risks, which are
inherent  in  the  testing,  manufacturing and  marketing  of  human therapeutic
products. The Company is contractually obligated under its license agreements to
indemnify the  individuals and/or  institutions from  whom it  has licensed  the
technology  against claims relating to the  manufacture and sale of the products
to be sold  by the Company.  This indemnification liability,  as well as  direct
liability  to consumers for any  defects in the products  sold, could expose the
Company to substantial risk and losses. Because the Company's products are still
in their development stages, the Company has not purchased any product liability
insurance. The Company plans to purchase such product liability insurance as  it
deems  appropriate prior  to marketing  its products.  However, there  can be no
assurance that  it  will  be  able  to obtain  or  maintain  such  insurance  on
acceptable  terms or that any insurance  obtained will provide adequate coverage
against potential liabilities.
 
Concentration of Ownership
 
     Upon completion of the Offering, the Company's directors and officers  will
beneficially  own approximately 14.0% of the Company's outstanding Common Stock.
As a result, these stockholders, if they acted together, would have the  ability
to  influence  significantly  the election of the Company's directors as well as
the management and policies of the Company. This concentration of  ownership may
have the effect of delaying  or preventing a  change of control  of the Company.
See 'Principal Stockholders.'
 
                                       9
 
<PAGE>
 
<PAGE>
No Prior Trading Market; Possible Volatility of Stock Price
 
     Prior  to the Offering, there  has been no public  market for shares of the
Company's Common Stock,  and there can  be no assurance  that a regular  trading
market  will develop after  the Offering. The initial  public offering price for
the Common Stock will be determined by negotiations between the Company and  the
Underwriters.  See  'Underwriting.'  The  stock market  has  from  time  to time
experienced significant price and volume  fluctuations that may be unrelated  to
the operating performance of particular companies. In addition, the market price
of  the  Common  Stock  may  prove  to  be  highly  volatile.  Announcements  of
technological innovations, regulatory matters or new commercial products by  the
Company  or  its  competitors,  developments or  disputes  concerning  patent or
proprietary rights,  publicity regarding  actual or  potential clinical  results
relating  to  products  under development  by  the Company  or  its competitors,
regulatory developments in both the  U.S. and foreign countries, public  concern
as  to the  safety of pharmaceutical  products, and economic  and other external
factors, as well as period-to-period fluctuations in financial results, may have
a significant impact on the market price of the Common Stock.
 
Forward Looking Statements
 
     This Prospectus contains certain forward-looking statements concerning  the
Company's  operations, economic performance and financial conditions, including,
in particular,  the  likelihood  of  the Company's  success  in  developing  and
bringing  to market the products which it currently has under development. These
statements are  based upon  a  number of  assumptions  and estimates  which  are
inherently subject to significant uncertainties and contingencies, many of which
are  beyond the  control of  the Company  and reflect  future business decisions
which are  subject to  change. Some  of these  assumptions inevitably  will  not
materialize, and unanticipated events will occur which will affect the Company's
results.  Consequently, actual results  will vary from  the statements contained
herein and such  variance may  be, and is  likely to  be, material.  Prospective
investors should not place undue reliance on this information.
 
Shares Eligible for Future Sale
 
     Of  the  15,544,119 shares  of  Common Stock  to  be outstanding  after the
Offering, no shares, other than the 3,500,000 shares of Common Stock sold in the
Offering,  will be immediately eligible for  resale in the public market without
restriction, after taking  into consideration the  effect of lock-up  agreements
entered  into by  all officers, directors  and all existing  stockholders of the
Company (the 'Lock-up Agreements').  Beginning 180 days after  the date of  this
Prospectus,   after  taking  into  consideration   the  effect  of  the  Lock-up
Agreements, approximately  11,640,739 additional  shares  of Common  Stock  will
become  eligible for resale in the public  market, subject as to certain of such
shares to  compliance with  applicable  provisions of  Rules  144 and  701.  See
'Shares Eligible for Future Sale.'
 
     The  stockholders  of the  Company prior  to the  Offering are  entitled to
certain registration rights  with respect  to their shares,  including a  demand
registration  right which is  exercisable after 270  days from the  date of this
Prospectus and certain 'piggyback' registration rights which are exercisable  in
connection  with registrations of  shares initiated by  the Company. Such rights
are  not   applicable   to   the   Offering.   See   'Description   of   Capital
Stock -- Registration Rights.'
 
     If  such holders cause  a large number of  shares to be  sold in the public
market, such  sales may  have  an adverse  effect on  the  market price  of  the
Company's Common Stock and its ability to raise capital.
 
Dilution; Absence of Dividends
 
     Purchasers  of  shares  of  Common  Stock  offered  hereby  will experience
immediate and substantial  dilution of  $11.70 in  net tangible  book value  per
share,  assuming  an initial  public  offering price  of  $15.00 per  share. See
'Dilution.' The Company  has never declared  or paid any  cash dividends on  its
capital  stock. The  Company currently  intends to  retain earnings,  if any, to
support its growth strategy and does not anticipate paying cash dividends in the
foreseeable future.  Payment  of  future  dividends, if  any,  will  be  at  the
discretion of the Company's Board of Directors after taking into account various
factors, including the Company's financial condition, operating results, current
and anticipated cash needs and plans for expansion. See 'Dividend Policy.'
 
                                       10
 
<PAGE>
 
<PAGE>
Effect of Anti-Takeover Provisions
 
     The   Company's  Restated  Certificate  of  Incorporation  provides  for  a
classified Board  of  Directors  commencing  with the  1996  annual  meeting  of
stockholders  and that members of the Board of Directors may be removed only for
cause upon the affirmative vote of holders of at least a majority of the  shares
of  capital  stock  of the  Company  entitled  to vote.  The  Company's Restated
Certificate of Incorporation requires that  any action required or permitted  to
be taken by stockholders of the Company must be effected at a duly called annual
or  special meeting of  stockholders and may  not be effected  by any consent in
writing, and  will require  reasonable  advance notice  by  a stockholder  of  a
proposal or director nomination which such stockholder desires to present at any
annual  or special meeting of stockholders. Special meetings of stockholders may
be called only by the Chief Executive Officer or, if none, the President of  the
Company  or by the Board  of Directors. In addition,  the Board of Directors has
the authority, without further action by the stockholders, to fix the rights and
preferences of, and issue shares of, preferred stock. The Company is subject  to
the  anti-takeover provisions of Section 203 of the Delaware General Corporation
Law, which prohibits the Company from engaging in a 'business combination'  with
an  'interested stockholder' for a  period of three years  after the date of the
transaction in  which  the person  first  becomes an  'interested  stockholder,'
unless  the  business  combination  is  approved  in  a  prescribed  manner. The
application of these provisions could have the effect of delaying or  preventing
a  change of control of  the Company. Certain other  provisions of the Company's
Restated Certificate of Incorporation could also have the effect of delaying  or
preventing  changes  of  control  or  management  of  the  Company,  which could
adversely  affect  the  market  price   of  the  Company's  Common  Stock.   See
'Description of Capital Stock.'
 
                                       11
 
<PAGE>
 
<PAGE>
                                USE OF PROCEEDS
 
     The  net proceeds to the  Company from the sale  of the 3,500,000 shares of
Common Stock  offered hereby  are estimated  to be  approximately $48.0  million
($55.3 million if the Underwriters' over-allotment option is exercised in full),
assuming  an  initial  public  offering  price of  $15.00  per  share  and after
deducting estimated underwriting discounts and commissions and offering expenses
payable by the Company.
 
     The Company intends to use approximately $32.0 million of the net  proceeds
of  the Offering  to fund  research and  product development  activities and the
planned establishment of the Company's direct  sales force. The balance will  be
used  for working capital and for other general corporate purposes. A portion of
the net proceeds may be used to acquire technology, licenses, or companies  that
complement  the  business  of  the  Company,  although  currently  there  are no
agreements or other arrangements regarding any such acquisitions by the Company.
The amount and timing of such expenditures  will depend on a number of  factors,
including  progress  of the  Company's  research and  development  programs, the
number and  breadth of  these  programs, the  progress  of the  development  and
commercialization  efforts  of  the  Company,  the  ability  of  the  Company to
establish and maintain strategic alliances and licensing arrangements, competing
technological and  marketing  developments,  the costs  involved  in  preparing,
filing,   prosecuting,  maintaining,  and  enforcing  patent  claims  and  other
proprietary rights, progress in the  regulatory process, and other factors.  The
Company believes that the net proceeds from the Offering, together with interest
thereon  and the Company's existing capital resources will be sufficient to fund
its operations for  the research and  development of the  products currently  in
clinical  trials and other working capital  requirements. Pending such uses, the
net proceeds will be invested in interest bearing or income producing accounts.
 
                                DIVIDEND POLICY
 
     The Company has never  declared or paid any  cash dividends on its  capital
stock.  The Company currently intends to retain earnings, if any, to support its
growth strategy and does not anticipate paying cash dividends in the foreseeable
future. Payment of future dividends,  if any, will be  at the discretion of  the
Company's  Board  of  Directors  after  taking  into  account  various  factors,
including the  Company's financial  condition,  operating results,  current  and
anticipated cash needs and plans for expansion.
 
                                       12
 
<PAGE>
 
<PAGE>
                                 CAPITALIZATION
 
     The  following table sets forth the  capitalization of the Company at March
31, 1996, (i)  on an actual  basis and (ii)  as adjusted to  give effect to  the
Offering  and the  automatic conversion of  all outstanding  shares of Preferred
Stock of the Company  into Common Stock upon  the consummation of the  Offering.
See  'Use  of  Proceeds.' The  information  presented  below should  be  read in
conjunction with 'Management's  Discussion and Analysis  of Financial  Condition
and Results of Operations' and the Company's historical financial statements and
the notes thereto included elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                                                                               MARCH 31, 1996
                                                                                          ACTUAL     AS ADJUSTED(1)
                                                                                          -------    --------------
                                                                                           (DOLLARS IN THOUSANDS)
 
<S>                                                                                       <C>        <C>
Stockholders' equity (2):
  Preferred Stock: 10,000,000 shares authorized;
     Convertible Series A Preferred Stock, 872,500 shares authorized (actual); 0 shares
      (as adjusted); 702,500 shares issued and outstanding (actual); 0 issued and
      outstanding (as adjusted)........................................................   $     7       $      0
  Common Stock: 50,000,000 shares authorized; 6,138,680 issued and outstanding
     (actual); 15,469,430 issued and outstanding (as adjusted).........................        61            155
  Additional paid-in capital...........................................................     7,595         55,533
  Unearned compensation expense........................................................      (237)          (237)
  Deficit accumulated during the development stage.....................................    (4,456)        (4,456)
                                                                                          -------    --------------
          Total stockholders' equity...................................................     2,970         50,995
                                                                                          -------    --------------
          Total capitalization.........................................................   $ 2,970       $ 50,995
                                                                                          -------    --------------
                                                                                          -------    --------------
</TABLE>
 
- ------------
 
(1) As  adjusted to reflect  the Offering at an  assumed initial public offering
    price of $15.00 per  share for the Common  Stock, after deducting  estimated
    underwriting  discounts  and  commissions  and  estimated  offering expenses
    payable by the Company and to give effect to the automatic conversion of all
    outstanding shares of Preferred Stock into Common Stock upon consummation of
    the Offering.
 
(2) Gives effect to an amendment  of the Company's Certificate of  Incorporation
    effective after March 31, 1996.
 
                                       13
 
<PAGE>
 
<PAGE>
                                    DILUTION
 
     The  net tangible book value per share  of the Company's Common Stock as of
March 31,  1996  was $0.25  per  share, after  giving  effect to  the  automatic
conversion  of all  outstanding Preferred Stock  into an  aggregate of 5,830,747
shares of Common  Stock upon consummation  of the Offering.  'Net tangible  book
value  per share' represents  the total tangible  assets less total liabilities,
divided by the number of shares of Common Stock outstanding after giving  effect
to the automatic conversion of the Preferred Stock into shares of Common Stock.
 
     Dilution  per share represents the  excess of the amount  per share paid by
purchasers of Common Stock in the Offering  and the pro forma net tangible  book
value  per share assuming completion of the Offering as of March 31, 1996, at an
initial public offering price  of $15.00 per share.  After giving effect to  the
sale of 3,500,000 shares and the receipt of net proceeds of $48,025,000, the pro
forma  net tangible book value per share on March 31, 1996 would have been $3.30
per share, which represents an immediate increase in the net tangible book value
of $3.05 to  existing stockholders and  an immediate dilution  of $11.70 in  net
tangible  book value per share  to purchasers of shares  of Common Stock offered
hereby, as illustrated by the following table:
 
<TABLE>
<S>                                                                                      <C>      <C>
Assumed initial public offering price per share.......................................            $15.00
Net tangible book value per share at March 31, 1996...................................   $0.25
Increase per share attributable to new investors......................................    3.05
                                                                                         -----
Pro forma net tangible book value per share after the Offering........................              3.30
                                                                                                  ------
Dilution per share to new investors...................................................            $11.70
                                                                                                  ------
                                                                                                  ------
</TABLE>
 
     The following table summarizes, on a pro forma basis as of March 31,  1996,
the  difference between the number of shares  of Common Stock purchased from the
Company, the total consideration paid to  the Company and the average price  per
share  paid by existing holders of Common  Stock and by new investors purchasing
shares of Common  Stock in the  Offering at an  assumed initial public  offering
price   of  $15.00  per  share,  before  deducting  underwriting  discounts  and
commissions and estimated offering expenses payable by the Company:
 
<TABLE>
<CAPTION>
                                            SHARES PURCHASED        TOTAL CONSIDERATION
                                          ---------------------    ----------------------    AVERAGE PRICE
                                            NUMBER      PERCENT      AMOUNT       PERCENT      PER SHARE
                                          ----------    -------    -----------    -------    -------------
 
<S>                                       <C>           <C>        <C>            <C>        <C>
Existing stockholders..................   11,969,430      77.4%    $ 7,815,500      13.0%       $  0.65
New investors..........................    3,500,000      22.6      52,500,000      87.0          15.00
                                          ----------    -------    -----------    -------
     Total.............................   15,469,430     100.0%    $60,315,500     100.0%
                                          ----------    -------    -----------    -------
                                          ----------    -------    -----------    -------
</TABLE>
 
     The above calculations exclude 521,240 shares of Common Stock issuable upon
the exercise of  outstanding options  at a  weighted average  exercise price  of
$0.13  and  338,225  shares  of  Common  Stock  issuable  upon  the  exercise of
outstanding warrants at  an exercise price  of $1.20. The  issuance of any  such
shares will result in further dilution to new investors.
 
                                       14
 
<PAGE>
 
<PAGE>
                         SELECTED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
     The  selected financial  information set  forth below  with respect  to the
Company's statements of  operations for  each of  the years  ended December  31,
1993,  1994 and 1995 and the balance sheet data at each of December 31, 1994 and
1995 are derived from the financial statements of the Company audited by Coopers
& Lybrand L.L.P.,  independent accountants. The  selected financial  information
for  the three months ended  March 31, 1995 and  1996 are derived from unaudited
financial statements included herein. The unaudited financial statements include
all adjustments,  consisting only  of normal  recurring adjustments,  which  the
Company  considers necessary for  a fair presentation  of the financial position
and the results of operations for these periods. Operating results for the three
months ended March 31, 1996 are  not necessarily indicative of the results  that
may  be expected for the entire year ending  December 31, 1996 or for any future
period. This data should  be read in  conjunction with 'Management's  Discussion
and  Analysis of  Financial Condition  and Results  of Operations'  and with the
Company's financial statements  and related  notes contained  elsewhere in  this
Prospectus.
 
<TABLE>
<CAPTION>
                                                                                                  THREE MONTHS
                                                                                                     ENDED
                                                         YEAR ENDED DECEMBER 31,                   MARCH 31,
                                                 ----------------------------------------    ----------------------
                                                 1992       1993        1994       1995       1995         1996
                                                 -----      -----      -------    -------    -------    -----------
 
<S>                                              <C>        <C>        <C>        <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA:
Revenues......................................   $  96(1)   $ 215(1)   $ --       $ --       $ --         $--
Operating expenses:
     Research and development.................     125         40          654      1,615        381          400
     General and administrative...............     369        436          623        760        235          211
                                                 -----      -----      -------    -------    -------    -----------
          Total operating expenses............     494        476        1,277      2,375        616          611
                                                 -----      -----      -------    -------    -------    -----------
Interest income...............................      13          4          153        253         71           43
                                                 -----      -----      -------    -------    -------    -----------
Net loss......................................   $(385)     $(257)     $(1,124)   $(2,122)   $  (545)     $  (568)
                                                 -----      -----      -------    -------    -------    -----------
                                                 -----      -----      -------    -------    -------    -----------
Pro forma net loss per common share(2)........                                    $ (0.18)                $ (0.05)
                                                                                  -------               -----------
                                                                                  -------               -----------
Pro forma weighted average common shares
  outstanding(2)..............................                                     12,099                  12,211
                                                                                  -------               -----------
                                                                                  -------               -----------
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                 MARCH 31, 1996
                                                               DECEMBER 31,                  ----------------------
                                                 ----------------------------------------                   AS
                                                 1992       1993        1994       1995      ACTUAL     ADJUSTED(3)
                                                 -----      -----      -------    -------    -------    -----------
 
<S>                                              <C>        <C>        <C>        <C>        <C>        <C>
BALANCE SHEET DATA:
Cash and cash equivalents.....................   $ 288      $ 124      $ 5,634    $ 3,707    $ 3,095      $51,120
Working capital...............................     180         81        5,503      3,419      2,875       50,900
Total assets..................................     330        153        5,765      3,820      3,197       51,222
Deficit accumulated during the development
  stage.......................................    (385)      (642)      (1,766)    (3,888)    (4,456)      (4,456)
Total stockholders' equity....................     214        108        5,618      3,521      2,970       50,995
</TABLE>
 
- ------------
 
(1) Represents  revenues  from consulting  activities in  which the  Company has
    ceased to engage.
 
(2) Adjusted to  give effect  to  the automatic  conversion of  all  outstanding
    shares  of Preferred Stock upon consummation of  the Offering. See Note 2 to
    the Financial Statements.
 
(3) As adjusted to  give effect  to the Offering  at an  assumed initial  public
    offering  price  of  $15.00  per  share  (after  deducting  the underwriting
    discounts and commissions and estimated  offering expenses) and the  receipt
    of the net proceeds therefrom. See 'Use of Proceeds' and 'Capitalization.'
 
                                       15
<PAGE>
 
<PAGE>
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                           AND RESULTS OF OPERATIONS
 
OVERVIEW
 
     Algos, a development stage company, is engaged primarily in the development
and   commercialization  of  proprietary   pharmaceutical  products.  Since  its
formation in January 1992, the Company  has devoted a substantial amount of  its
efforts to licensing technology, recruiting key management and staff, developing
products,  filing patents and other regulatory applications and raising capital.
To date, the Company has  earned no revenue from  its planned principal line  of
business.
 
     The  Company has incurred  losses since its inception  and expects to incur
significant operating losses in the future. The Company expects that its product
development expenses will increase significantly during 1996 and in future years
as the drugs that the Company currently has under development move into advanced
clinical trials  and as  additional  drugs are  considered for  development.  In
addition,   the  Company  expects   that  its  personnel   costs  will  increase
significantly in the future, primarily as a result of the planned development of
a direct sales force.
 
RESULTS OF OPERATIONS
 
THREE MONTHS ENDED MARCH 31, 1996 COMPARED TO THE THREE MONTHS ENDED MARCH 31,
1995
 
Research and Development
 
     In the 1996 period, research and development expenses increased $19,127, to
$399,712 from $380,585 in 1995. The 1996 period included expenses related to the
Company's clinical trials, including payments to clinical investigators totaling
approximately  $143,000,  and  increases   in  compensation  to  employees   and
consultants.  The  1995  period  expenditures  consisted  of  expenses  relating
primarily to pre-clinical studies which were completed prior to January 1, 1996.
 
General and Administrative Expenses
 
     In the 1996 period, general and administrative expenses decreased  $24,315,
to  $210,840  from $235,155  in 1995,  primarily as  a result  of a  decrease in
expenses associated with the Company's patent applications.
 
YEAR ENDED DECEMBER 31, 1995 COMPARED TO THE YEAR ENDED DECEMBER 31, 1994
 
Research and Development
 
     In  1995,  research  and   development  expenses  increased  $961,229,   to
$1,614,943  from $653,714 in  1994. This increase  was primarily attributable to
the Company's  pre-clinical studies  in the  field of  NMDA antagonists.  Direct
costs   associated   with  pre-clinical   studies   and  clinical   trials  were
approximately $542,000 and  formulation development, drug  supplies and  related
analytical   services  totaled  approximately   $265,000.  Compensation  expense
increased as a result of the addition of employees and consultants and  spending
on  other programs also contributed to  increased 1995 expenditures. Expenses in
1994 consisted primarily of employee and consultant compensation as the  Company
established  its  research  management  team  and  initiated  sponsored research
programs at three universities.
 
General and Administrative Expenses
 
     In  1995,  general  and  administrative  expenses  increased  $136,821,  to
$760,040  from $623,219  in 1994.  This increase  was primarily  attributable to
additional employee compensation  and related taxes  and benefits. In  addition,
general  office expenses  such as rent,  utilities, and supplies  increased as a
result of increased business activities and employment.
 
                                       16
 
<PAGE>
 
<PAGE>
Interest Income
 
     In 1995, interest income  increased $99,301, to  $252,548 from $153,247  in
1994  as  a result  of the  investment  of proceeds  from the  Company's private
offering of Preferred Stock, which was completed in August 1994.
 
YEAR ENDED DECEMBER 31, 1994 COMPARED TO THE YEAR ENDED DECEMBER 31, 1993
 
Revenue
 
     In 1993,  the Company  earned $214,584  for performing  certain  consulting
services  unrelated to  its planned  principal operations.  Effective January 1,
1994, the consulting contract was  assigned to another corporation. The  Company
will not earn any revenue or incur any expenses in the future in connection with
that consulting contract.
 
Research and Development
 
     In  1994, research and development expenses increased $613,714, to $653,714
from $40,000  in  1993.  This  increase  was  principally  attributable  to  the
Company's  establishment  of  its  research management  team  and  initiation of
sponsored research programs at three universities.
 
General and Administrative Expenses
 
     In  1994,  general  and  administrative  expenses  increased  $187,562,  to
$623,219   from  $435,657  in  1993.  This   increase  was  due  principally  to
professional fees related to  patent investigations and applications,  sponsored
research programs and other general corporate expenses.
 
Interest Income
 
     Interest  income  of  $153,247  in  1994  was  derived  primarily  from the
investment of proceeds from the private  offering of the Preferred Stock,  which
was  completed in August 1994.  The Company earned interest  income of $4,433 in
1993 from the investment of capital contributions by the Company's founders.
 
LIQUIDITY AND CAPITAL RESOURCES
 
General
 
     In 1995, 1994,  and 1993,  spending for the  Company's product  development
efforts  and related activities resulted in net cash outflows from operations of
$1,929,321, $991,928 and  $289,277, respectively. Accumulated  cash balances  at
December  31,  1992, which  resulted from  the Company's  initial capitalization
together with additional investments by the Company's founders, were  sufficient
to  provide operating funds into 1994. In 1994, in order to initiate its planned
product development programs, the Company sold 700,000 shares of Preferred Stock
resulting in net proceeds of $6,609,015. A  portion of these funds were used  to
fund the Company's development efforts in 1995 and the first quarter of 1996. At
March  31, 1996,  the Company  had cash and  cash equivalents  of $3,095,419 and
current liabilities  of $226,105.  Without  the proceeds  of the  Offering,  the
Company believes that current cash and cash equivalents are sufficient to fund a
reduced level of operations for at least the next 12 months.
 
     The  Company expects to invest substantial  funds in the development of its
products and  to continue  to generate  significant losses  for the  foreseeable
future.  Its funding requirements will depend  on a number of factors, including
the results  of  the Company's  development  efforts,  the timing  and  cost  of
obtaining   required   regulatory  approvals,   the  development   of  competing
technologies,  the  amount  of  resources  required  for  the  establishment  of
marketing  and distribution  capabilities, the  execution of  licensing or other
collaborative research agreements on  terms acceptable to  the Company, and  the
cost  of prosecuting and  defending patents. The  Company currently expects that
the proceeds from the Offering will be sufficient to fund its operations for the
development of products currently in clinical
 
                                       17
 
<PAGE>
 
<PAGE>
trials based  upon  the Company's  presently  anticipated schedule  of  clinical
trials.  If, however, additional trials are  deemed to be necessary, the Company
may require additional funds to complete such trials. Accordingly, in the  event
that  the proceeds of  the Offering, revenue and  income from successful product
introductions or  other internally  generated funds  are insufficient  for  such
efforts,  the Company  will need  to raise  additional funds  by incurring debt,
issuing additional equity or through collaborative or license arrangements.  See
'Risk Factors -- Need for Additional Funds.'
 
Net Operating Loss Carryforwards
 
     At  December  31,  1995, the  Company  had accumulated  net  operating loss
carryforwards of approximately $2,900,000 which expire in 2009 and 2010 and  are
available to reduce future taxable income recognized in the carryforward period,
if  any.  Due to  the  uncertainty of  future  taxable income,  the  Company has
established a valuation allowance for these carryforwards and has not recognized
their potential benefit  on a  current basis.  The future  utilization of  these
carryforwards may be limited by Section 382 of the Internal Revenue Code related
to changes in Company ownership.
 
Other
 
     Generally,  the  Company's  results  of  operations  are  not significantly
affected by seasonal factors and the Company does not believe that inflation has
had or is likely to have a significant impact on its business.
 
     In October 1995, the Financial Accounting Standards Board issued  Statement
of  Financial Accounting  Standards ('SFAS')  No. 123  -- 'Accounting  for Stock
Based Compensation,'  which  generally  requires disclosure  of  the  impact  on
earnings of stock based employee compensation arrangements. The Company plans to
adopt the disclosure requirements of SFAS No. 123 effective January 1, 1996.
 
                                       18
 
<PAGE>
 
<PAGE>
                                    BUSINESS
 
COMPANY OVERVIEW
 
     Algos  is  a leader  in  developing a  new  generation of  proprietary pain
management products. Independent  research, the  Company's pre-clinical  studies
and  initial  clinical  trials  have  shown  that  the  Company's  products  may
significantly improve pain relief over currently available analgesics, including
narcotic drugs  such as  morphine, hydrocodone  and oxycodone  and  non-narcotic
analgesics  such as  acetaminophen (e.g. Tylenol'r'),  ibuprofen (e.g. Advil'r')
and naproxen (e.g. Aleve'r'). The Company is also developing a local  anesthetic
product  that is expected  to provide greater anesthetic  effect with longer and
more controlled  duration  than  existing products.  The  Company  develops  its
proprietary   pain  management  products  by  combining  existing  analgesic  or
anesthetic drugs with NMDA  antagonist drugs that have  been approved for  human
use  in other applications. The Company's analgesic and anesthetic products will
target markets with combined 1995 U.S. sales estimated at over $6.4 billion.  In
addition,  the  Company  is  using its  NMDA  antagonist  technology  to develop
products to treat urge urinary incontinence and opiate and cocaine addiction.
 
     The Company believes that  its analgesic and  anesthetic products have  the
potential  for more rapid market introduction  than many other new drugs because
(i) the Company's products combine existing drugs whose separate safety profiles
are known  and established  and  (ii) clinical  trials  for new  analgesics  and
anesthetics  historically have  achieved statistically  significant results with
fewer patients than may required for many other drugs. As a result, the  Company
currently anticipates that it will file its first NDA with the FDA in 1997.
 
     The  Company has ten  products that have reached  Phase II clinical trials.
The Company has completed or is  currently conducting seven clinical trials  for
four  of its products, and has scheduled Phase II clinical trials to commence in
1996 for an additional  six products. The Company's  products that have  reached
Phase II consist of:
 
          (i)  four  narcotic  analgesic/NMDA  antagonist  combination products:
     MorphiDex'tm',  expected  to  be  used  primarily  to  treat  cancer  pain,
     HydrocoDex SR'tm' and HydrocoDex Plus'tm', expected to be used primarily to
     treat  moderate  to moderately  severe post-operative,  musculoskeletal and
     trauma-related pain, and  OxycoDex'tm', expected  to be  used primarily  to
     treat moderate to moderately severe post-operative pain;
 
          (ii)   two  OTC  analgesic/NMDA  antagonist  combination  products:  a
     combination product of an NMDA  antagonist with acetaminophen, the  largest
     selling OTC analgesic, and a combination product of an NMDA antagonist with
     ibuprofen, the largest selling OTC NSAID;
 
          (iii)   one  injectable  local   anesthetic/NMDA  combination  product
     expected  to  provide  greater  anesthetic  effect  with  longer  and  more
     controlled  duration  for  use  in  dental  procedures  and  in-patient and
     out-patient surgeries;
 
          (iv) one product that uses an NMDA antagonist intended as a  treatment
     for urge urinary incontinence, a condition which afflicts an estimated five
     million people in the U.S.; and
 
          (v)  two products that are  currently being developed in collaboration
     with NIDA intended as treatments for opiate and cocaine addiction.
 
COMPANY STRATEGY
 
     The Company's strategic goal is to establish a leading position in the pain
management pharmaceutical market. The  Company intends to  achieve this goal  by
implementing the following strategy:
 
     Introducing   superior  proprietary  products.  Based  on  the  results  of
independent research,  pre-clinical studies  and  initial clinical  trials,  the
Company  believes  its products  will provide  superior efficacy  over currently
available narcotic, non-narcotic and anesthetic products. The Company intends to
build significant market share in both the OTC and prescription pain  management
markets.
 
                                       19
 
<PAGE>
 
<PAGE>
     Minimizing  development time, cost and risk. The Company attempts to reduce
drug development time  and cost at  each stage of  the development process.  The
Company  believes that it  will be able  to develop its  initial products faster
than other types of new drugs because all of the Company's initial products  are
combinations  of, or  forms of,  existing approved  drugs. For  its pre-clinical
studies, the  Company is  able to  save time  and expense  by drawing  upon  the
experience  of many  highly regarded  researchers in  the pain  management field
through its  collaborations  with established  academic  research  institutions.
Similarly,  for its clinical  trials, the Company  collaborates with researchers
who have the experience and the  facilities to design timely and  cost-effective
trials.  In addition,  the Company  believes that  new analgesic  and anesthetic
products have the potential for more  rapid market introduction than many  other
types of drugs.
 
     Leveraging    its   proprietary   technology    across   multiple   product
opportunities. Through  extensive pre-clinical  research, Algos  has  identified
multiple potential products using NMDA antagonist technology. As a result, Algos
has  developed  ten pharmaceutical  products that  have  progressed to  Phase II
clinical trials.
 
     Outsourcing  to  efficiently  deploy  resources.  The  Company  intends  to
continue  to contract the resources  of well-recognized commercial organizations
to perform pre-clinical studies, clinical trials and pharmaceutical  development
on  behalf of  the Company.  In addition, the  Company intends  to outsource its
manufacturing functions to third party suppliers.
 
     Maximizing market penetration and margin potential through a combination of
Company direct sales and strategic alliances. In market segments with relatively
concentrated distribution  channels, such  as prescription  analgesics that  are
sold   to   individual   hospitals,   health   maintenance   organizations   and
pharmaceutical buyer  groups,  the Company  plans  to maximize  its  margins  by
marketing  these products through a direct  sales force. In market segments that
will require  large or  specialized sales  capabilities, such  as OTC  analgesic
products  and  certain  foreign  countries,  the  Company  will  seek  strategic
alliances with  leading  pharmaceutical  companies. The  Company  believes  such
alliances  enhance  its ability  to  identify new  products  as well  as quickly
develop and commercialize such products.
 
MARKET OVERVIEW
 
     The Company  is  developing products  that  will target  the  narcotic  and
non-narcotic  analgesic markets, the  local anesthetic market,  the urge urinary
incontinence  market  and  the  market  for  treatment  of  opiate  and  cocaine
addiction.
 
The Analgesic Market
 
     The  Company's analgesic  products will  target markets  with combined 1995
U.S. sales  estimated  at over  $6.1  billion.  The Company  believes  that  the
analgesic  market represents  attractive opportunities based  upon the following
factors: high  growth  rates  partially  attributable  to  the  rapidly  growing
population  segment aged 65 and older; increasing recognition of the therapeutic
benefits of  effective  pain  treatment  including  reductions  in  healing  and
recovery  time; generally  concentrated distribution  channels that  permit more
cost-effective selling and  marketing; lack of  recent product innovation  which
has  resulted in  market segments comprised  largely of  older off-patent drugs;
higher profit margins from branded  proprietary products; and the potential  for
rapid  acceptance  of  new pain  management  pharmaceuticals by  members  of the
medical profession.
 
                                       20
 
<PAGE>
 
<PAGE>
The following table identifies  the estimated size of  the U.S. market  segments
which the Company's analgesic products are expected to target.
 
 
 
<TABLE>
<CAPTION>
 
                                                                                                        ESTIMATED
ANALGESIC MARKET SEGMENTS                         REPRESENTATIVE BRANDS                              1995 U.S. SALES
- ------------------------------------------------  ------------------------------------------------   ---------------
                                                                                                     (IN MILLIONS)
 
<S>                                               <C>                                                <C>
Prescription Anti-arthritics (NSAIDs)             Lodine, Voltaren, Relafen                              $ 1,714
Prescription Narcotics:
     Non-injectable Morphine                      MS Contin                                                  247
     Hydrocodone Based Products                   Vicodin                                                    315
     Oxycodone Based Products                     Percocet, Percodan                                          73
     Codeine Based Products                       Tylenol with codeine                                        87
     Synthetic Narcotics                          Darvon                                                     237
     All Others                                                                                               10
                                                                                                         -------
          Prescription Narcotics Total                                                                       969
Synthetic Non-Narcotics                           Toradol, Ultram, Stadol NS                                 500
Prescription Topical Analgesics                                                                               15
                                                                                                         -------
          Prescription Total                                                                               3,198
OTC Analgesics:
     NSAIDs                                       Advil, Motrin, Aleve, Orudis                               853
     Aspirin                                      Bayer                                                      617
     Acetaminophen                                Tylenol                                                  1,220
     Topical Analgesics                                                                                      213
                                                                                                         -------
          OTC Analgesics Total                                                                             2,903
                                                                                                         -------
               Total Analgesic Market                                                                    $ 6,101
                                                                                                         -------
                                                                                                         -------
</TABLE>
 
- ------------
 
Source: IMS, Inc. and A.C. Nielsen.
 
The Anesthetic Market
 
     In  1995,  the injectable  local anesthetic  and topical  anesthetic market
segments in the  U.S. were estimated  to be approximately  $164 million and  $95
million,  respectively. The market for local  anesthetics is believed to present
attractive opportunities for the  Company's controlled duration product  because
existing  local anesthetics  have limited  and less  controllable duration which
restricts their use in surgery. The Company believes that a controlled, extended
duration local anesthetic, if successfully  developed, would have the  potential
to significantly expand this market segment.
 
The Urge Urinary Incontinence Market
 
     An  estimated  five million  people in  the U.S.  suffer from  urge urinary
incontinence. While sales of  urge urinary incontinence drugs  in the U.S.  were
estimated at $58 million in 1995, U.S. sales of incontinence supplies (including
adult  protective undergarments) were significantly  higher at an estimated $1.1
billion in 1994. This was due, in part, to a lack of satisfactory pharmaceutical
treatments. The Company believes  that if satisfactory  drugs for treating  urge
urinary   incontinence  were  introduced,  the  market  size  for  urge  urinary
incontinence drugs could grow considerably.
 
The Drug Abuse Treatment Market
 
     NIDA estimates that  there are  two million  opiate addicts  in the  United
States  and 1.5 to  2 million cocaine  abusers. The Company  believes that these
opiate addict and cocaine abuser populations represent a large potential  market
for effective pharmaceutical treatment.
 
                                       21
 
<PAGE>
 
<PAGE>
PRODUCTS
 
     The following table describes the ten products developed by Algos that have
reached Phase II clinical trials.
 
<TABLE>
<CAPTION> 
                                         ALGOS PRODUCTS IN DEVELOPMENT
 
              PRODUCT                              INDICATION                       STAGE OF DEVELOPMENT
- ------------------------------------  ------------------------------------  ------------------------------------
<S>                                   <C>                                   <C>
NARCOTIC ANALGESICS
MorphiDex'tm'                         Moderate to severe pain (primarily    Two Phase I/II clinical trials
                                      cancer pain)                          completed.
                                                                            Phase II clinical trial in progress.
                                                                            Additional Phase II clinical trials
                                                                            scheduled in 1996.
 
HydrocoDex SR'tm' and HydrocoDex      Moderate to moderately severe pain    Phase II clinical trial scheduled in
Plus'tm'                              (primarily post-operative,            1996.
                                      musculoskeletal and trauma-related
                                      pain)
 
OxycoDex'tm'                          Moderate to moderately severe pain    Phase II clinical trial in progress.
                                      (primarily post-operative pain)       Additional Phase II clinical trial
                                                                            scheduled in 1996.
 
NON-NARCOTIC ANALGESICS
Ibuprofen/NMDA Antagonist             OTC analgesic                         One Phase II clinical trial
Combination                                                                 completed.
                                                                            Additional Phase II clinical trial
                                                                            scheduled in 1996.
 
Acetaminophen/NMDA                    OTC analgesic                         Phase II clinical trial in progress.
Antagonist Combination
 
LOCAL ANESTHETICS
Lidocaine/NMDA Antagonist             Injectable local anesthetic for       Phase II clinical trial scheduled in
Combination                           dental procedures and in-patient and  1996.
                                      out-patient surgeries
OTHERS
Urge Urinary Incontinence Treatment   Urge urinary incontinence             Phase II clinical trial in progress.
 
Opiate Addiction Treatment            Opiate addiction                      Phase II clinical trial scheduled in
                                                                            1996.
 
Cocaine Addiction Treatment           Cocaine addiction                     Phase II clinical trial scheduled in
                                                                            1996.
</TABLE>
 
NARCOTIC ANALGESICS
 
     Narcotic  analgesic drugs remain  the most common  and useful treatment for
moderate to  severe pain  in  both acute  and  chronic conditions.  These  drugs
consist of naturally occurring opiates (e.g. morphine), opiate derivatives (e.g.
codeine, hydrocodone, oxycodone), and synthetic opiates (e.g. methadone). One of
the  most  significant drawbacks  to  these drugs  is  the development  of rapid
tolerance and physical dependence. Tolerance refers to the condition under which
a drug dose that was initially
 
                                       22
 
<PAGE>
 
<PAGE>
effective  in  producing   analgesia  becomes  less   effective  with   repeated
administrations.  Therefore, to alleviate the same  level of pain, the drug dose
has to be increased over time. However, increasing the drug dose may produce  an
increase   in  unwanted  side  effects  such  as  mental  clouding,  nausea  and
constipation and may also increase the potential for drug dependence.
 
     Pre-clinical studies of  the Company's  narcotic analgesic/NMDA  antagonist
combination products indicated superior first-dose analgesic effects as compared
to equivalent dosage levels of the narcotic analgesic alone and greater efficacy
when  administered over periods during which the narcotic analgesic administered
alone became less  effective. The  Company believes  that its  new products,  if
proven  effective in humans in producing superior analgesic effects and reducing
tolerance and side effects, could replace a significant portion of the  narcotic
analgesics  currently in  use for acute  and chronic  pain and could  be used in
chronic pain cases where physicians have been reluctant to use narcotics.
 
MorphiDex'tm'
 
     MorphiDex'tm', the  Company's  most developmentally  advanced  product,  is
designed  to  treat moderate  to  severe pain  and  will be  used  primarily for
treating cancer pain. MorphiDex'tm' is the trade name for the Company's patented
morphine and  dextromethorphan  combination product.  The  addition of  an  NMDA
antagonist  to morphine is intended  to increase analgesic effectiveness, reduce
the  development  of  tolerance  to  morphine  and  reduce  the  development  of
hyperalgesia in cases of chronic administration.
 
     The  Company expects to use MorphiDex'tm' to target the market for morphine
products. In  1995, U.S.  sales  of morphine  products were  approximately  $247
million  and  non-U.S. sales  were approximately  $500  million. This  market is
believed to be growing at  an estimated rate of 18%  per year, which is  largely
attributable  to the rapidly growing population segment aged 65 and older in the
United States, Europe and Japan.
 
     The  Company's  research  and   development  activities  with  respect   to
MorphiDex'tm' include: (i) pre-clinical pharmacology studies which indicate that
morphine  tolerance may  be significantly  reduced by  co-administration with an
NMDA antagonist; (ii) pre-clinical toxicology and drug safety studies  comparing
the  combination of dextromethorphan and morphine to the individual drugs; (iii)
two completed Phase  I/II clinical trials  which indicate that  the product  may
have  a  favorable safety  profile; and  (iv) several  clinical trials  that are
currently underway or scheduled in 1996.
 
HydrocoDex'tm' SR and HydrocoDex Plus'tm'
 
     Hydrocodone is a narcotic  primarily used to  treat moderate to  moderately
severe  post-operative, musculoskeletal  and trauma-related  pain. The analgesic
products containing  hydrocodone that  are  sold commercially  in the  U.S.  are
combination  products  containing acetaminophen.  In 1995,  the market  for such
products in the  U.S. was approximately  $315 million with  an estimated  growth
rate of approximately 15% per year.
 
     HydrocoDex  SR'tm' is  the trade name  for the  Company's sustained release
product that combines hydrocodone and  dextromethorphan. Currently there are  no
sustained  release hydrocodone  products on the  market because  the dosage size
required to achieve a sustained effect  when combined with acetaminophen is  too
large  for  practical application.  The Company  expects  that, if  approved and
successfully brought to market, HydrocoDex  SR'tm' will provide physicians  with
the  ability to prescribe  an effective sustained  release hydrocodone analgesic
for the first time.
 
     HydrocoDex Plus'tm' is the trade  name for the Company's immediate  release
product  that  combines  hydrocodone,  dextromethorphan  and  acetaminophen. The
Company believes that  HydrocoDex Plus'tm'  may broaden the  current market  for
hydrocodone/acetaminophen   combination  products   because  equal   or  greater
therapeutic  effect  may  be  achieved  by  administering  lower  doses  of  the
hydrocodone  component of  the product,  thereby potentially  creating a product
with a lower abuse potential.
 
     The Company is planning to  begin a Phase II  clinical trial in the  second
half  of 1996 intended to show that the addition of an NMDA antagonist increases
the efficacy of  products containing  hydrocodone. The  results of  pre-clinical
studies for these products have been favorable.
 
                                       23
 
<PAGE>
 
<PAGE>
OxycoDex'tm'
 
     Oxycodone  is an opiate narcotic that, in combination with acetaminophen or
aspirin, forms the basis for a group of products which are broadly used for  the
treatment  of moderate  to moderately severe  post-operative and  other types of
pain. In 1995, the U.S. market for such products was estimated at  approximately
$73 million.
 
     The  Company is currently in the process of developing an immediate release
combination product consisting of oxycodone, acetaminophen and dextromethorphan.
Pre-clinical studies have  indicated that  an NMDA antagonist  may increase  the
efficacy  of oxycodone. In April 1996, the National Institute of Dental Research
('NIDR') commenced a clinical  trial comparing the  efficacy of oxycodone  alone
and  in  combination with  an NMDA  antagonist.  Additional clinical  trials are
scheduled to be conducted in 1996.
 
NON-NARCOTIC ANALGESICS
 
     The  Company   has  two   non-narcotic   analgesics  in   development:   an
ibuprofen/NMDA   antagonist  combination   product  and   an  acetaminophen/NMDA
antagonist combination product.  In 1995,  the NSAID  market in  the U.S.  which
included  ibuprofen totaled an estimated $2.6 billion. The total U.S. market for
acetaminophen was estimated at $1.2 billion.
 
Ibuprofen/NMDA Antagonist Combination
 
     Pre-clinical studies have indicated that the analgesic efficacy of  several
NSAIDs,  such as ibuprofen and naproxen, may  be increased when combined with an
NMDA antagonist.  The  Company  believes  that  an  OTC  product  based  upon  a
combination  of existing dosage levels of an NSAID with an NMDA antagonist would
offer analgesic efficacy that is superior  to existing OTC analgesics and  could
have  the potential to  achieve rapid market acceptance.  In addition, at dosage
levels where the NSAID  indicated no analgesic effect  by itself, a  significant
analgesic  effect was  indicated by  the addition  of an  NMDA antagonist.  As a
result, an NSAID/NMDA antagonist combination  product may also be formulated  to
give  an equivalent  analgesic effect while  lowering the NSAID  dosage and thus
potentially reducing  certain dosage  related side  effects of  NSAIDs, such  as
gastrointestinal bleeding and ulcers.
 
     An  initial Phase II clinical trial has indicated that an NSAID (ibuprofen)
in combination  with  an NMDA  antagonist  may  have an  increased  effect  when
compared  to the NSAID alone in  dental surgery patients who experienced greater
surgical trauma  (i.e. patients  who had  surgery which  lasted longer  than  30
minutes).  The study  also indicated that  for dental patients  in certain lower
trauma categories (i.e. patients whose surgery lasted less than 30 minutes) both
ibuprofen alone  and ibuprofen  in combination  with an  NMDA antagonist  had  a
significantly  better  analgesic  effect when  compared  to a  placebo  and that
ibuprofen alone and ibuprofen in combination  with an NMDA antagonist were  both
similarly  effective  in  relieving  the patient's  pain.  Although  the Company
believes that  these results  are encouraging,  additional clinical  trials  are
necessary in order to submit an NDA to the FDA.
 
Acetaminophen/NMDA Antagonist Combination
 
     The Company has sponsored pre-clinical studies to evaluate acetaminophen in
combination  with NMDA antagonists. The results  indicate that combining an NMDA
antagonist with acetaminophen may increase  the efficacy of acetaminophen. In  a
placebo-controlled  Phase  II clinical  study  conducted by  the  NIDR, patients
taking a scheduled regimen of  an NMDA antagonist (dextromethorphan) before  and
after  oral surgery required substantially  less acetaminophen after the surgery
to relieve pain.
 
LOCAL ANESTHETICS
 
Lidocaine/NMDA Antagonist Combination
 
     The injectable local anesthetic and topical anesthetic market segments were
estimated to be approximately $164 million and $95 million, respectively, in the
U.S. in  1995. Sales  in both  segments consist  primarily of  older  off-patent
drugs.    Although    research    indicates   that    the    administration   of
 
                                       24
 
<PAGE>
 
<PAGE>
analgesics preceding surgery may improve surgical outcomes, the limited duration
of existing injectable  anesthetics limits  their use in  surgery. The  Company,
through  the application of its NMDA technology, is in the process of developing
a controlled duration injectable local anesthetic.
 
     The Company in collaboration with  Brigham and Women's Hospital at  Harvard
Medical School is conducting research into the potentiation of local anesthetics
by  NMDA  antagonists. Pre-clinical  studies  have indicated  that  certain NMDA
antagonists may  increase  the depth  and  duration  of anesthesia  by  a  local
anesthetic.  Pre-clinical studies  have also  indicated that  the duration  of a
fixed dose of a local anesthetic may be controlled by adding an NMDA antagonist.
 
     While  local  anesthetics  have  a  relatively  short  effective  duration,
pre-clinical  studies suggest  that the  duration of  a local  anesthetic may be
prolonged from two hours to up to 24 hours by the addition of an NMDA antagonist
and, if given  prior to or  immediately following surgery,  may provide  greater
patient  comfort during  the initial  24 hours after  surgery when  pain is most
severe. With the current emphasis on preemptive analgesia, same-day surgery  and
shorter  hospital stays, the  Company believes that  a controlled duration local
anesthetic could become  the preferred  anesthetic for  a wide  range of  dental
procedures and in-patient and out-patient surgeries.
 
     Another   potential   application   of   the   controlled   duration  local
anesthetic/NMDA antagonist combination is in dental procedures. Currently,  many
oral  surgeons use local anesthetics  containing the vasoconstrictor epinephrine
to  prolong   the  anesthetics'   duration.  However,   epinephrine  may   cause
nervousness, anxiety, or produce jitters in many patients. A controlled duration
local  anesthetic without the potential for such adverse side effects may become
the preferred anesthetic of such oral surgeons.
 
     A Phase I/II  clinical trial  is being  planned at  the Hvidovre  Hospital,
University of Copenhagen, Denmark in which the depth and duration of action of a
local  anesthetic alone  will be compared  to a local  anesthetic in combination
with an NMDA antagonist.
 
OTHERS
 
Urge Urinary Incontinence Treatment
 
     An estimated  five million  people in  the U.S.  suffer from  urge  urinary
incontinence.  While sales of  urge urinary incontinence drugs  in the U.S. were
estimated at $58 million in 1995, U.S. sales of incontinence supplies (including
adult protective undergarments) were an estimated $1.1 billion in 1994. This was
due, in part, to  a lack of satisfactory  urge urinary incontinence drugs  which
generally  have unpleasant side effects and  low levels of efficacy. The Company
believes that if satisfactory drugs  for treating urge urinary incontinence  are
introduced,  the  consumer demand  for a  urge  urinary incontinence  drug could
increase considerably.
 
     Company sponsored pre-clinical studies have indicated that NMDA antagonists
may block the bladder micturation reflex. A Phase II clinical trial is currently
being conducted at  the Stanford University  School of Medicine  to evaluate  an
NMDA  antagonist in urge  incontinent patients. If  successful, these agents may
offer a novel and safe treatment for urge urinary incontinence.
 
Opiate and Cocaine Addiction Treatment Drugs
 
     NIDA estimates that  there are  two million  opiate addicts  in the  United
States  and 1.5 to  2 million cocaine  abusers. These opiate  addict and cocaine
abuser populations represent  a large potential  market for effective  treatment
drugs.  The Company is developing an  NMDA antagonist-based product as an opiate
addiction treatment  drug.  NIDA  is  planning a  Phase  II  clinical  study  in
collaboration  with the Company to test this opiate addiction treatment drug. In
addition,  the  Company  is  developing  a  cocaine  addiction  treatment  drug.
Pre-clinical  studies  have  indicated  that  NMDA  antagonists  may  have  some
potential for the treatment of dependence on opiate narcotics and cocaine abuse.
 
                                       25
 
<PAGE>
 
<PAGE>
SCIENTIFIC OVERVIEW
 
     A key element in the Company's  technology is the use of NMDA  antagonists,
which  block the  NMDA receptor.  NMDA receptors are  believed to  be present in
nerve cells in  the brain  and spinal cord.  There is  increasing evidence  that
there may also be peripheral NMDA receptors.
 
     The  important  role  of the  NMDA  receptor  in pain  response  has become
recognized among scientists  and clinicians.  Research indicates  that the  NMDA
receptor  plays  a role  in neuropathic  pain, development  of tolerance  to and
dependence on  narcotic  analgesics,  and development  of  hyperalgesia  due  to
chronic  administration  of opiate  narcotics.  According to  current scientific
theory, activation of this receptor results in a cascade of intracellular events
beginning with  the influx  of  extracellular calcium.  This influx  of  calcium
results  in  activation  of  the  enzyme protein  kinase  C  and  its subsequent
translocation from  cytosol to  the membrane.  Through protein  phosphorylation,
enduring  changes then occur  in the membrane  constituents including receptors.
This cascade of events  beginning with the activation  of the NMDA receptor  has
been   implicated  in  numerous  neuroplastic  phenomena  such  as  post-tetanic
potentiation  resulting  in  sensitized  and  overly  active  nerve  cells   and
consequently may cause spontaneous pain and/or increased sensitivity to pain.
 
     It  is believed that  narcotic analgesics reduce pain  by binding to opiate
receptors located on  nerve cells  in the brain  and spinal  cord. Although  the
initial  effect of this binding is to  inhibit the nerve cell and thereby reduce
pain, opiate receptor activation is also believed to stimulate the NMDA receptor
leading to  the cascade  of events  described in  the previous  paragraph.  Many
researchers  believe  that  increased NMDA  receptor  activation  represents the
underlying cellular mechanism of  opiate tolerance and dependence.  Pre-clinical
studies indicate that by blocking the NMDA receptor, tolerance to and dependence
on  opiates may  be reduced and  the development of  hyperalgesia prevented. The
involvement of the NMDA receptor in dependence is also the basis for development
of NMDA antagonists to treat drug addiction.
 
ACADEMIC AND RESEARCH COLLABORATIONS
 
Virginia Commonwealth University, The Medical College of Virginia
 
     In 1994, the Company entered  into a collaborative research agreement  with
The  Medical College of Virginia with the option for subsequent annual renewals.
Under the terms  of this  agreement, The  Medical College  of Virginia  provides
pre-clinical  research exclusively to the Company in the field of (i) prevention
of tolerance to and dependence on opiates, opiate derivatives and opioids;  (ii)
treatment  of chronic pain;  and (iii) treatment of  neuropathic pain, under the
direction of  David J.  Mayer,  Ph.D and  Donald  D. Price,  Ph.D.,  Professors,
Department of Anesthesiology, The Medical College of Virginia.
 
Brigham and Women's Hospital
 
     In  1995, the  Company entered into  a research agreement  with Brigham and
Women's Hospital, Inc., a  teaching affiliate of  Harvard Medical School.  Under
the  terms of this agreement, Brigham and Women's Hospital performs pre-clinical
research exclusively for the  Company in the field  of long lasting  anesthetics
under  the  direction  of Gary  R.  Strichartz, Ph.D.,  Professor  of Anesthesia
(Pharmacology). The research is designed to measure certain characteristics  and
effects  of  various  anesthetic/NMDA  antagonist  combinations  covered  by the
Company's existing or pending patents.
 
Stanford University
 
     The Company has entered into a series of research agreements with  Stanford
University.  Under  the  direction of  Christos  E. Constantinou,  Ph.D.  of the
Stanford University School of Medicine, certain NMDA antagonists were tested  in
pre-clinical  studies  to assess  their potential  for use  in the  treatment of
urinary urge incontinence. The studies were conducted with products that are the
subject of  one  of the  Company's  pending patent  applications.  In  addition,
Christopher Payne, M.D. is currently conducting a clinical trial to further test
the  potential  of  such NMDA  antagonists  for  the treatment  of  urge urinary
incontinence.
 
                                       26
 
<PAGE>
 
<PAGE>
CLINICAL TRIAL COLLABORATIONS
 
     Clinical trials  with  several  major  research  institutions  and  medical
centers have commenced, and several others are scheduled for commencement in the
near future. The institutions with which the Company collaborates include:
 
     Johns Hopkins Bayview Medical Center, Baltimore, Maryland
     Memorial Sloan-Kettering Cancer Center, New York City, New York
     Emory University Hospital Medical Center, Atlanta, Georgia
     Stanford University School of Medicine, Palo Alto, California
     University of Pennsylvania, Philadelphia, Department of Veterans Affairs
       Medical Center, Philadelphia, Pennsylvania
     Royal North Shore Hospital, University of Sydney, Australia
     Hvidovre Hospital, University of Copenhagen, Denmark
     National Institute of Dental Research, National Institutes of Health,
       Bethesda, Maryland
     Rivers Center Research Corporation, Columbia, Maryland
     SCIREX Corporation, Austin, Texas
 
     The Company generally conducts clinical studies directly with the principal
investigators  and also by  the use of  Contract Research Organizations ('CROs')
that provide additional manpower  as required to  manage several study  programs
simultaneously.  The  Company's  management  is  experienced  at  selecting  and
managing CROs for conducting clinical studies.
 
TECHNICAL DEVELOPMENT AND PRODUCTION
 
     The Company  generally  seeks to  contract  third parties  for  formulation
development,  manufacture  of clinical  trial materials  and scale-up  work. The
Company generally  selects third  party contractors  that it  believes have  the
capability  to commercially manufacture the  products. The Algos management team
is experienced  in selecting  and managing  activities at  third party  contract
companies.  By  selecting  qualified  third  party  contractors  or  by choosing
development partners that  provide full scale  contract manufacturing  services,
the Company believes it will be able to shorten development time and scale-up to
production.  The  key  advantage  to  this  approach  is  that  the  third party
contractor which  performed  the developmental  work  will have  the  equipment,
operational parameters and validated testing procedures already in place for the
commercial manufacture of the Company's products.
 
MARKETING
 
     Algos plans to market its products for which it obtains regulatory approval
either   directly  or   through  co-marketing   or  licensing   agreements  with
pharmaceutical companies.  The  Company's marketing  strategy  is to  develop  a
direct  sales force in the U.S.  in market segments with relatively concentrated
distribution channels to target hospitals, health maintenance organizations  and
pharmaceutical  buyer groups. Algos does not  expect to establish a direct sales
capability until  such  time as  one  or more  of  its products  in  development
receives  marketing approval from the FDA. In market segments that require large
or specialized sales capabilities,  such as OTC  analgesic products and  certain
foreign  countries,  the  Company  will seek  strategic  alliances  with leading
pharmaceutical companies. Implementation  of this  strategy will  depend on  the
market  potential of the Company's products,  its financial resources and timely
regulatory approvals.
 
COMPETITION
 
     The Company's products  under development are  expected to address  several
different  markets.  The  Company's  proposed products  will  be  competing with
currently existing  or future  products of  other companies.  Competition  among
these  products will be based on,  among other things, product efficacy, safety,
reliability, availability,  price and  patent position.  Many of  the  Company's
existing   or  potential  competitors   have  substantially  greater  financial,
technical and human  resources than the  Company and may  be better equipped  to
develop, manufacture and market products. Many of these companies have extensive
experience  in pre-clinical testing  and human clinical  trials. These companies
may develop and  introduce products and  processes competitive to  those of  the
Company.
 
                                       27
 
<PAGE>
 
<PAGE>
     The  Company competes  with pharmaceutical companies  that develop, produce
and market products  in the United  States, Europe and  elsewhere. In  addition,
academic   institutions,  government  agencies  and  other  public  and  private
organizations conducting research may seek patent protection, discover new drugs
or  establish  collaborative  arrangements  for  drug  research.  The  Company's
narcotic  analgesic and anesthetic  products, when developed  and marketed, will
compete  with  products  generally   marketed  by  medium-sized   pharmaceutical
companies.  In other analgesic segments, such as antiarthritic and OTC analgesic
products, the Company's products, when developed and marketed, will compete with
some of the largest pharmaceutical companies in the U.S. In these segments,  the
Company   may   enter   into  license   agreements   with   large  international
pharmaceutical companies having greater resources than the Company.
 
PATENTS, TRADE SECRETS AND LICENSES
 
Patent Rights
 
     The Company  seeks  to protect  is  proprietary position  by,  among  other
methods,  filing United States  and foreign patent  applications with respect to
the development of its products and their uses. The  Company plans to  prosecute
and defend its patent  applications, issued patents and proprietary information.
The Company's  ability to compete effectively will depend in part on its ability
to develop and  maintain  proprietary  aspects  of  its  planned  products.  The
Company  has an exclusive  license  for three  U.S.  patents   and  six  pending
U.S.  patent  applications  under  its  agreement  with  The  Medical College of
Virginia,  and  several corresponding pending foreign  patent  applications. The
Company  also  owns  one  pending U.S.  patent  application  and  plans  to file
additional  patent applications.
 
     Reflecting  the  Company's  major research  and  development  concerns, its
patent program is primarily focused on securing intellectual property rights  to
technology  for  the  following  categories  of its  business:  (i)  the  use of
pharmacologically acceptable  NMDA  antagonists  for the  management  of  acute,
chronic,  pre-operative and  post-operative pain  states, (ii)  the use  of NMDA
antagonists for the potentiation of local  anesthesia and (iii) the use of  NMDA
antagonists  for  the  treatment  of  other  conditions  such  as  urge  urinary
incontinence. The  Company is  employing an  aggressive dual-level  strategy  of
claiming   its  drug  discoveries  mechanistically  and  in  terms  of  specific
therapeutics. This strategy is intended to maximize the Company's  opportunities
for  obtaining the  broadest possible  patent protection  and at  the same time,
result in issued patents with complementary and mutually reinforcing claims.
 
     Of the patents issued to The  Medical College of Virginia, U.S. Patent  No.
5,321,012 entitled 'Inhibiting the Development of Tolerance to and/or Dependence
on  a Narcotic Addictive  Substance' (issued June  14, 1994) claims compositions
and methods for inhibiting the development of tolerance to and/or dependence  on
a   variety  of   narcotic  analgesics  including   codeine,  fentanyl,  heroin,
hydrocodone, morphine  and  oxycodone  employing any  one  of  several  specific
non-toxic  NMDA  antagonists  including dextromethorphan  and  dextrorphan; U.S.
Patent No. 5,352,683 entitled 'Method for the Treatment of Chronic Pain' (issued
October 4, 1994) claims a method for treating chronic pain employing any one  of
several  specific nontoxic NMDA  antagonists such as  those previously mentioned
and, U.S.  Patent No.  5,502,058 entitled  'Method for  the Treatment  of  Pain'
(issued   March  26,  1996)  covers  a  method  of  alleviating  preexisting  or
prospectively  occurring  pain  employing  dextromethorphan  or  dextrorphan  in
combination with lidocaine.
 
     A U.S. Patent application claims a composition containing any nontoxic NMDA
antagonist  and any addictive substance. A  related application of similar scope
covering a  companion method  for  inhibiting the  development of  tolerance  to
and/or  dependence on addictive  substances in general  is pending. In addition,
the Company has  been assigned a  pending U.S. patent  application covering  the
treatment   of  urinary  incontinence  which   has  recently  been  examined.  A
corresponding regional  application designating  numerous foreign  jurisdictions
has been filed.
 
     The  patent positions of  pharmaceutical firms, including  the Company, are
generally  uncertain   and  involve   complex  legal   and  factual   questions.
Consequently,  even  though  the  Company is  currently  prosecuting  its patent
applications with  the U.S.  Patent  and Trademark  Office ('PTO')  and  certain
foreign  patent  authorities,  the Company  does  not  know whether  any  of its
applications will result in the
 
                                       28
 
<PAGE>
 
<PAGE>
issuance of any  patents, or  if any patents  issue, whether  they will  provide
significant proprietary protection or will be circumvented or invalidated. Since
patent  applications in the U.S. are  maintained in secrecy until patents issue,
and since publication of discoveries in the scientific or patent literature tend
to lag  behind actual  discoveries  by several  months,  the Company  cannot  be
certain  that it was the  first creator of inventions  claimed by pending patent
applications or that the Company was  the first to file patent applications  for
such  inventions. See 'Risk Factors --  Uncertain Ability to Protect Proprietary
Technology.'
 
     The Company also relies upon trade secrets, know-how, continuing innovation
and licensing opportunities to develop and maintain its competitive position. It
is the Company's current practice to require its employees, consultants, members
of its  Medical and  Research Advisory  Board, sponsored  researchers and  other
advisors   to  execute  confidentiality  agreements  upon  the  commencement  of
employment or  consulting  relationships  with  the  Company.  These  agreements
provide  that  all  confidential  information developed  or  made  known  to the
individual during the course of  the individual's relationship with the  Company
is  to  be kept  confidential and  not  disclosed to  third parties,  subject to
certain exceptions. In the  case of employees, the  agreements provide that  all
inventions  conceived by the  individual shall be the  exclusive property of the
Company. There can be no assurance, however, that these agreements will  provide
meaningful  protection for the  Company's trade secrets  or adequate remedies in
the event of unauthorized use or disclosure of such information.
 
     The Company engages in collaborations and sponsored research agreements and
enters into  pre-clinical  and clinical  testing  agreements with  academic  and
research institutions and U.S. government agencies, such as NIH. Consistent with
pharmaceutical  industry and academic  standards, and the  rules and regulations
under the Federal Technology Transfer Act of 1986, these agreements may  provide
that  developments and  results will  be freely  published, that  information or
materials supplied by the Company will  not be treated as confidential and  that
the  Company may be required to negotiate a license to any such developments and
results in order to commercialize products  incorporating them. There can be  no
assurance  that the Company will be able to successfully obtain any such license
at a reasonable  cost or that  such developments  and results will  not be  made
available  to  competitors of  the Company  on an  exclusive or  a non-exclusive
basis.
 
     The Company's  success depends  in part  on its  ability to  obtain  patent
protection  for  its products  and  to preserve  its  trade secrets  and operate
without infringing on the proprietary rights of third parties. No assurance  can
be given that the Company's pending patent applications will be approved or that
any  patents will provide competitive advantages for its products or will not be
successfully challenged or circumvented by its competitors. No assurance can  be
given  that patents  do not  exist or  could not  be filed  which would  have an
adverse effect on the Company's ability  to market its products or maintain  its
competitive position with respect to its products. The Company's patents may not
prevent  others from  developing competitive products  using related technology.
Other entities may obtain patents which cover aspects of the Company's  products
or  processes which are necessary for  or useful to the development, manufacture
or use of the Company's  products. As a result, the  Company may be required  to
obtain  licenses from  others to develop,  manufacture or  market such products.
There can be  no assurance  that the  Company will be  able to  obtain any  such
licenses on commercially reasonable terms, if at all.
 
     No  assurance can be given  that any patent issued  to, or licensed by, the
Company will provide protection that has commercial significance. In this regard
the patent position of pharmaceutical compounds and compositions is particularly
uncertain. Even issued patents may  be later modified or  revoked by the PTO  in
proceedings  instituted by the Company or  others. In addition, no assurance can
be given that the Company's  patents will afford protection against  competitors
with  similar compounds  or technologies,  that others  will not  obtain patents
claiming  aspects  similar  to  those  covered  by  the  Company's  patents   or
applications,  or that the patents of others  will not have an adverse effect on
the ability of the Company to do business. The Company's patents may not prevent
others from developing competitive positions using related technology.
 
Licenses
 
     The Company has entered into a  license agreement with The Medical  College
of  Virginia for any product covered by a valid patent claim or  pending  patent
claim owned by the Medical College of Virginia in the field  of pain management,
 
                                       29
 
<PAGE>
 
<PAGE>
in the country in which any  such product or part thereof is made, used, sold or
manufactured.  The  Company  pays no license signing fees or milestone payments.
Royalties  for  the  life of the patent equal  4% of net sales. If a product  is
combined  with  a  drug  or  other  substance for which the Company is paying an
additional  royalty, the royalty rate paid  to The  Medical College  of Virginia
is generally reduced by the amount  of such additional royalty.  If  the Company
enters into sublicensing agreements for a covered  product, the Company will pay
the Medical College of Virginia 50% of payments received from such  sublicenses.
The  Medical  College  of  Virginia  does  not  share  in amounts  received from
sublicensees  related  to  the  achievement of milestones that impose additional
costs on the Company.
 
     The Company has entered into a license agreement with MIT for an  exclusive
worldwide  license in connection  with patent rights relating  a patent owned by
MIT. This patent covers a process for the ultrasound enhancement of  transdermal
drug delivery.
 
GOVERNMENT REGULATION
 
     In the U.S., pharmaceutical products intended for therapeutic or diagnostic
use  in humans are subject to rigorous FDA regulation. The process of completing
clinical trials and obtaining FDA approvals for  a new drug is likely to take  a
number  of years and require the expenditure of substantial resources. There can
be no assurance that any product will  receive such approval on a timely  basis,
if  at all. See 'Risk  Factors -- Government Regulation;  No Assurance of United
States or Foreign Regulatory Approval.'
 
     Applicable   FDA   regulations   treat   the   Company's   combination   of
dextromethorphan  with analgesics such as  morphine, acetaminophen and ibuprofen
and local anesthetics such as lidocaine as  new drugs and require the filing  of
an  NDA and  approval by the  FDA. However, since  each of these  drugs has been
separately approved by the  FDA, management believes  that the risks  associated
with  the development  of these  new proprietary drugs  are less  than the risks
inherent in new molecular drug discovery.
 
     The steps required before  a new pharmaceutical product  for use in  humans
may be marketed in the U.S. include (i) pre-clinical studies, (ii) submission to
the  FDA of an  Investigational New Drug application  ('IND'), which must become
effective  before   human  clinical   trials   commence,  (iii)   adequate   and
well-controlled  human clinical trials to establish the safety and effectiveness
of the product, (iv) submission  of an NDA to the  FDA, and (v) FDA approval  of
the NDA prior to any commercial sale or shipment of the product.
 
     Pre-clinical studies include laboratory evaluation of product chemistry and
formulation,  as  well as  animal studies,  to assess  the potential  safety and
effectiveness of  the  product. The  results  of the  pre-clinical  studies  are
submitted  to the FDA as a  part of an IND and are  reviewed by the FDA prior to
the commencement  of  human  clinical  trials. Unless  the  FDA  objects  to  or
otherwise  responds to, an IND, the IND  will become effective 30 days following
its receipt by the FDA.
 
     Clinical  trials  are  typically  conducted  in  three  sequential  phases,
although phases may overlap. In Phase I, the investigational new drug usually is
administered  to  healthy  human  subjects and  is  tested  for  safety (adverse
effects),   dosage,   tolerance,   metabolism,   distribution,   excretion   and
pharmacodynamics (clinical pharmacology). Phase II involves studies in a limited
patient population to (i) determine the effectiveness of the investigational new
drug  for  specific indications,  (ii)  determine dosage  tolerance  and optimal
dosage and (iii)  identify possible adverse  effects and safety  risks. When  an
investigational  new drug  is found  to be effective  and to  have an acceptable
safety profile  in Phase  II  evaluation, Phase  III  trials are  undertaken  to
further evaluate clinical effectiveness and to further test for safety within an
expanded  patient population  at geographically dispersed  clinical study sites.
For analgesic  drugs,  Phase II  analgesic  efficacy studies  have  historically
served  as the pivotal studies for an  NDA. Phase III studies for these products
normally focus greater attention on safety in larger patient populations  rather
than  efficacy. There can  be no assurance that  Phase I, Phase  II or Phase III
testing will be completed successfully within  any specified time period, if  at
all,  with respect  to any  of the Company's  products subject  to such testing.
Furthermore, the FDA may  suspend clinical trials at  any time there is  concern
that the participants are being exposed to an unacceptable health risk.
 
     The   results  of  pharmaceutical  development,  pre-clinical  studies  and
clinical trials are submitted to the FDA in  the form of an NDA for approval  of
the marketing and commercial shipment of the
 
                                       30
 
<PAGE>
 
<PAGE>
product.  The FDA may require additional testing or information before approving
the NDA.  The  FDA  may deny  an  NDA  approval if  safety,  efficacy  or  other
regulatory  requirements are not satisfied.  Moreover, if regulatory approval of
the product is  granted, such  approval may require  post-marketing testing  and
surveillance  to monitor the safety of the  product or may entail limitations on
the indicated uses for which the  product may be marketed. Finally, the  product
approvals  may  be  withdrawn if  compliance  with regulatory  standards  is not
maintained or if problems occur following initial marketing.
 
     At present, pharmaceutical products generally may not be exported from  the
U.S. for other than research purposes until the FDA has approved the product for
marketing  in the U.S. However, a company may apply to the FDA for permission to
export finished products or partially processed products to a limited number  of
countries prior to obtaining FDA approval for marketing in the U.S.
 
     The  Company is  also subject to  regulation under federal  and state laws,
including the Occupational  Safety and Heath  Act, the Environmental  Protection
Act,  the  Clean  Air Act,  national  restrictions on  technology  transfer, and
import, export  and  customs regulations.  In  addition, all  of  the  Company's
products  that  contain narcotics  are subject  to  DEA regulations  relating to
storage, distribution  and physician  prescribing procedures.  There can  be  no
assurance  that any portion of the  regulatory framework under which the Company
currently operates will not change and that such change will not have a material
affect on the current and anticipated operations of the Company.
 
     Whether or not FDA approval has been obtained, approval of a pharmaceutical
product by comparable governmental  regulatory authorities in foreign  countries
must  be obtained  prior to the  commencement of clinical  trials and subsequent
marketing of such product in such countries. The approval procedure varies  from
country  to country, and  the time required  may be longer  or shorter than that
required for FDA approval.
 
EMPLOYEES
 
     At May  15,  1996,  the  Company had  eight  employees  and  two  executive
consultants,  including  five  Ph.D's  and/or M.D's.  In  addition,  the Company
engages consultants from  time to  time to  perform services  on a  per diem  or
hourly basis.
 
FACILITIES
 
     The  Company's executive office,  located at Collingwood  Plaza, 4900 Route
33, Neptune, New  Jersey 07753,  is leased  under a  five-year agreement,  which
expires  in 1997. The lease is  renewable for two consecutive five-year periods.
The leased property consists  of approximately 2,000 square  feet of office  and
storage space. The Company is in the process of expanding its facilities to meet
anticipated future staffing.
 
LEGAL PROCEEDINGS
 
     There are no legal proceedings pending against the Company.
 
                                       31


<PAGE>
 
<PAGE>
                     MANAGEMENT AND KEY SCIENTIFIC ADVISORS
 
DIRECTORS, EXECUTIVE OFFICERS AND KEY EMPLOYEES
 
     Set  forth below is information  regarding directors and executive officers
of the Company as of May 1, 1996.
 
<TABLE>
<CAPTION>
                   NAME                      AGE                              POSITION
- ------------------------------------------   ---   ---------------------------------------------------------------
 
<S>                                          <C>   <C>
DIRECTORS AND EXECUTIVE OFFICERS
John W. Lyle..............................   52    President and Chief Executive Officer and Director
Frank S. Caruso, Ph.D. ...................   59    Executive Vice President for Research and Development
Gastone Bello, Ph.D. .....................   65    Executive Vice President for Technology Transfer and
                                                     Manufacturing
Donald G. Drapkin.........................   48    Director
James R. Ledley...........................   49    Assistant Secretary and Director
Dieter A. Sulser..........................   47    Director
 
KEY EMPLOYEES
Donald A. Johnson, Ph.D...................   41    Senior Vice President for Pharmaceutical Development
Gary R. Anthony...........................   35    Chief Financial Officer
</TABLE>
 
     MR. LYLE is a founder of the Company. Since January 1992, he has served  as
President  and Chief Executive Officer  and a director of  the Company. Mr. Lyle
served as President and  Chief Executive Officer of  OmniCorp Holdings, Inc.  in
1991.  Prior  to founding  the  Company, Mr.  Lyle was  one  of the  founders of
Osteotech, Inc., an orthopaedic pharmaceutical company. Osteotech was formed  in
1986. He served as Osteotech's Chairman and Chief Executive Officer from 1989 to
1991  and as President from 1986 to 1989.  From 1981 to 1986, Mr. Lyle served as
the President of CIBA-GEIGY Corporation's  CIBA Self-Medication, Inc. From  1975
to  1981, Mr. Lyle held various positions at Johnson & Johnson. Mr. Lyle holds a
B.S. in Marketing Management and a  M.B.A. in General Management, both from  the
University of Southern California.
 
     DR.  CARUSO joined Algos in  1994. From 1985 to  1993, Dr. Caruso served as
Vice President,  Research &  Development at  Roberts Pharmaceutical  Corporation
with  responsibility  for  worldwide  pre-clinical  and  clinical  research  and
development activities.  From  1980 to  1985,  Dr. Caruso  served  as  Director,
Clinical  Pharmacology, for  Revlon Health Care.  From 1963 to  1980, Dr. Caruso
served in  various  positions  at  Bristol-Myers  Company,  including  Director,
Clinical  Research-Analgesics and Central Nervous System. He holds a Ph.D. and a
M.S. in Pharmacology, both from the University of Rochester, School of  Medicine
and Dentistry and a B.S. in Biology from Trinity College.
 
     DR.  BELLO joined Algos in 1994. During  1992 and 1993, Dr. Bello performed
consulting services for the Company and in 1992, he also served on a task  force
organized  by  the  U.S.  Department  of  State  to  assess  the  status  of the
pharmaceutical industry in the former Soviet Union. From 1975 to 1991, Dr. Bello
served as CIBA-GEIGY Pharmaceutical Division Senior Vice President of  Technical
Operations and was a member of the Management Committee where he was responsible
for  chemical and pharmaceutical production, materials management, distribution,
engineering, safety and ecology. Dr. Bello  served as President and a member  of
the  Board of Directors of  CIBA-GEIGY Caribe, Caguas, Puerto  Rico from 1990 to
1991. He served as a member of  the Board of Directors of Geneva  Pharmaceutical
from  1982 to 1991  and a member of  the Board of  Directors of Alza Corporation
from 1978  to 1982.  Dr. Bello  serves on  the Board  of Overseers,  New  Jersey
Institute  of Technology. He received his Ph.D. in Chemistry from the University
of Trieste in Trieste, Italy.
 
     DR. JOHNSON  joined Algos  in 1994.  Prior to  joining Algos,  Dr.  Johnson
served as President of Pharmaceutical Development Laboratories, Inc., a contract
research  laboratory. From  1991 to 1993,  Dr. Johnson was  Business Director of
Applied Analytical  Industries, Inc.  where he  developed marketing  strategies,
research  plans and budgets for numerous new drug contract development projects.
From 1990  to 1991,  he served  as Manager  of Drug  Delivery Systems  at  Noven
Pharmaceuticals  and  was  responsible  for  the  research  and  development  of
transdermal drug delivery systems. From 1986 to 1990,
 
                                       32
 
<PAGE>
 
<PAGE>
Dr. Johnson served as Group Leader of Pharmaceutical Research at Schering-Plough
Research. Dr. Johnson holds a  Ph.D. and a M.S. in  Pharmaceutics and a B.S.  in
Pharmacy from the University of Wisconsin-Madison.
 
     MR.  ANTHONY  joined Algos  in January  1996. Prior  to joining  Algos, Mr.
Anthony engaged in  the private  practice of accounting,  providing services  to
pharmaceutical companies. From 1987 to 1993, he served as Controller for Roberts
Pharmaceutical  Corporation where  his responsibilities  included public company
financial reporting, the development and implementation of accounting  practices
and   internal  control  systems,  income  tax  planning  and  compliance,  cash
management and analysis  of acquisitions.  From 1983 to  1987 he  served on  the
audit  staff of Coopers &  Lybrand. Mr. Anthony holds  a B.S. in Accounting from
Monmouth College.
 
     MR. LEDLEY has  been a director  of the Company  since January 1992.  Since
1995,  he has  been a  member of the  law firm  of Kleinberg,  Kaplan, Wolff and
Cohen, P.C. From 1980 to 1995  he was a member of the  law firm of Varet &  Fink
P.C. (previously known as Milgrim Thomajan & Lee P.C.).
 
     MR.  DRAPKIN has  been a  director of the  Company since  January 1994. Mr.
Drapkin has been Vice Chairman and  Director of MacAndrews and Forbes  Holdings,
Inc.,  Revlon Group  Incorporated and Andrews  Group Incorporated  for more than
five years and is a director  of Revlon, Inc., Marvel Entertainment Group,  Inc.
and The Coleman Company.
 
     MR.  SULSER became a director  of the Company in  May 1995. Since 1991, Mr.
Sulser has served as Head of Investment Banking for the ERB Group of  Companies,
based  in Zurich,  Switzerland. Mr.  Sulser is  also General  Manager of Unifina
Holding AG, an affiliate of the ERB Group of Companies.
 
EXECUTIVE CONSULTANTS
 
     FREDRICK L. MINN,  M.D., PH.D., MEDICAL  DIRECTOR. Dr. Minn  has served  as
Medical  Director  since  1994  under the  terms  of  an  independent consulting
agreement with  the  Company. From  1989  to 1994,  Dr.  Minn served  as  Senior
Clinical  Research  Fellow at  the Robert  Wood Johnson  Pharmaceutical Research
Institute ('PRI') and  Clinical Research  Fellow at  McNeil Pharmaceutical  from
1976  to  1988. From  1974  to 1980,  Dr.  Minn served  as  Consulting Insurance
Examiner for Insurance Company of North America and from 1974 to 1976 served  as
Assistant  Director of  Clinical Pharmacology  for Squibb  Institute for Medical
Research.
 
     RONALD L. BUCHANAN, PH.D., DIRECTOR  OF LICENSING. Dr. Buchanan has  served
as Director of Licensing since 1994 under the terms of an independent consulting
agreement  with the  Company. Prior  to becoming  Director of  Licensing for the
Company, Dr.  Buchanan  served in  various  positions at  Bristol-Myers  Squibb,
including Senior Director of Licensing, from 1991 to 1993.
 
                                       33
 
<PAGE>
 
<PAGE>
MEDICAL AND RESEARCH ADVISORY BOARD
 
     The  Company's objective is to build  a proprietary technology base for its
products  and  establish   drug  development  programs   as  expeditiously   and
efficiently  as possible.  To meet this  objective, the  Company has established
consulting relationships with many of  the leading scientists and clinicians  in
pain  management. These scientific  and medical advisors, at  the request of the
Company, review the Company's individual  research programs, advise on  clinical
study  design and provide  direction on new  product development. Scientific and
medical advisors are compensated on a retainer or per diem basis. The  Company's
Medical   and  Research   Advisory  Board   currently  includes   the  following
individuals:
 
<TABLE>
<CAPTION>
                   NAME                                                   POSITION
- ------------------------------------------  ---------------------------------------------------------------------
<S>                                         <C>
William T. Beaver, M.D....................  Professor of Pharmacology and Anesthesia, Department of Pharmacology,
                                              Georgetown University School of Medicine.
Gary J. Bennett, Ph.D.....................  Chief, Neuropathic Pain  and Pain  Measurement Section,  Neurobiology
                                              and  Anesthesiology Branch, National  Institute of Dental Research,
                                              National Institutes of Health.
Michael J. Cousins, M.D...................  Professor and  Department Head,  Department  of Anesthesia  and  Pain
                                              Management,  University  of  Sydney,  Royal  North  Shore Hospital,
                                              Australia.
George E. Ehrlich, M.D....................  President, George E.  Ehrlich Associates and  Chairman, FDA  Advisory
                                              Committee on Rheumatology and Arthritis Drugs.
Howard L. Fields, M.D., Ph.D..............  Professor, Departments of Neurology and Physiology and Vice Chairman,
                                              Department of Neurology, University of California, San Francisco.
Richard H. Gracely, Ph.D..................  Research Psychologist, Neuropathic Pain and Pain Measurement Section,
                                              Neurobiology  and  Anesthesiology  Branch,  National  Institute  of
                                              Dental Research, National Institutes of Health.
Raymond W. Houde, M.D.....................  Senior Attending  Physician  Emeritus, Departments  of  Medicine  and
                                              Neurology, Memorial Sloan-Kettering Cancer Center.
Jerome H. Jaffe, M.D......................  Director,  Office of Scientific Analysis and Evaluation and Associate
                                              Director, Center for Substance Abuse Treatment, Substance Abuse and
                                              Mental Health Services Administration.
Donald R. Jasinski, M.D...................  Chief, Center  for Chemical  Dependence,  Francis Scott  Key  Medical
                                              Center,  Professor,  Departments  of  Medicine,  Anesthesiology and
                                              Critical  Care  Medicine,  Johns   Hopkins  University  School   of
                                              Medicine.
Robert Langer, Sc.D.......................  Kenneth   J.  Germeshausen  Professor   of  Chemical  and  Biomedical
                                              Engineering, Massachusetts  Institute  of Technology  and  Research
                                              Associate, Department of Surgery, Children's Hospital.
Louis Lasagna, M.D........................  Dean,  Sackler School of Graduate  Biomedical Sciences, Academic Dean
                                              of  the   Medical  School,   Professor  of   Psychiatry   (Clinical
                                              Pharmacology), Professor of Pharmacology, Tufts University.
David J. Mayer, Ph.D......................  Professor,  Department  of  Anesthesiology,  The  Medical  College of
                                              Virginia.
Donald D. Price, Ph.D.....................  Professor, Department of  Anesthesiology, Director  of Research,  The
                                              Medical College of Virginia.
Gary R. Strichartz, Ph.D..................  Professor  of Anesthesia (Pharmacology),  Vice Chairman for Research,
                                              Brigham and Women's Hospital, Harvard Medical School.
Vittorio Ventafridda, M.D., Ph.D..........  Liaison Officer, World  Health Organization  Cancer Unit,  Scientific
                                              Director, Fondazione Floriani, Milano, Italy; Consultant, Instituto
                                              Europeo di Oncologia (I.E.O.), Milano, Italy.
</TABLE>
 
                                       34
 
<PAGE>
 
<PAGE>
COMPENSATION OF OUTSIDE DIRECTORS
 
     Non-employee   members  of  the  Board   of  Directors  will  receive  cash
compensation of $1,500 per meeting attended as consideration for their  services
as  directors of the  Company and are reimbursed  for reasonable travel expenses
incurred in  connection with  their attendance  of such  meetings.  Non-employee
directors upon appointment or election to the Board of Directors will receive an
option grant under the Company's 1996 Non-Employee Director Stock Option Plan to
purchase  10,000 shares of Common Stock, at the fair market value on the date of
grant, vesting over  a three-year period  upon each anniversary  of the date  of
grant.  In addition,  on the  date of each  annual meeting  of stockholders held
after the date of the Offering, each non-employee director who will continue  to
serve  as a director for  the following year, and also  has served as a director
for the last six months prior to  the date of the annual meeting, shall  receive
an  option to purchase 5,000 shares of Common Stock, at the fair market value at
the date of grant, vesting over a one year period. See 'Stock Option Plans.'
 
EXECUTIVE COMPENSATION AND EMPLOYMENT AGREEMENTS
 
Executive Compensation
 
     The  following  tables   set  forth  the   annual,  long-term,  and   other
compensation  of the  Company's Chief  Executive Officer  and other  most highly
compensated executives and  key employees (collectively,  the 'Named  Officers')
whose annual base salaries equal or exceed $100,000.
 
                        1995 SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                OTHER       RESTRICTED   OPTIONS
                                                                ANNUAL        STOCK       (# OF     LTIP      ALL OTHER
     NAME AND PRINCIPAL POSITION         SALARY     BONUS    COMPENSATION     AWARDS     SHARES)   PAYOUTS   COMPENSATION
- --------------------------------------  --------   -------   ------------   ----------   -------   -------   ------------
 
<S>                                     <C>        <C>       <C>            <C>          <C>       <C>       <C>
John W. Lyle,
  President and Chief Executive
  Officer.............................  $235,000   $75,000       --            --          --       --           --
Frank S. Caruso,
  Executive Vice President for
  Research and Development............   165,000    25,000       --            --          --       --           --
Donald A. Johnson,
  Senior Vice President for
  Pharmaceutical Development..........   120,417    10,000       --            --          --       --           --
</TABLE>
 
     The following table sets forth for each of the named executive officers the
value realized from stock options exercised during 1995 and the number and value
of exercisable and unexercisable stock options held at December 31, 1995:
 
<TABLE>
                           AGGREGATED OPTION EXERCISES IN LAST YEAR AND YEAR END OPTION VALUES
 
<CAPTION>
                                                                   NUMBER OF SHARES
                                                                    OF UNDERLYING                VALUE OF UNEXERCISED
                                    SHARES                       UNEXERCISED OPTIONS            IN-THE-MONEY OPTIONS(1)
                                  ACQUIRED ON     VALUE      ----------------------------    -----------------------------
                                   EXERCISE      REALIZED    EXERCISABLE    UNEXERCISABLE    EXERCISABLE     UNEXERCISABLE
                                  -----------    --------    -----------    -------------    ------------    -------------
 
<S>                               <C>            <C>         <C>            <C>              <C>             <C>
John W. Lyle...................     74,700         --          74,700          149,400          --              --
Frank S. Caruso................     49,800         --          49,800           99,600          --              --
Donald A. Johnson..............     24,900         --          24,900           49,800          --              --
</TABLE>
 
- ------------
 
     (1)  Based on the fair market value of  the Common Stock as of December 31,
1995 ($0.12 per share) as determined by the Board of Directors, less the  option
exercise price, multiplied by the number of shares underlying the options.
 
Employment Agreements
 
     Each of Mr. Lyle and Drs. Caruso and Bello has an employment agreement with
the  Company  which  expires December  31,  1997. Each  employment  agreement is
automatically renewable  for  successive  one-year terms  unless  terminated  by
either  the employee or the Company. Mr. Lyle's agreement provides that Mr. Lyle
will  be  employed  as  the  President  and  Chief  Executive  Officer  of   the
 
                                       35
 
<PAGE>
 
<PAGE>
Company  and that the Company will use its  best efforts to cause Mr. Lyle to be
elected to the Board of  Directors for the term  of the agreement. Dr.  Caruso's
agreement  provides that he will be employed as the Executive Vice President for
Research and Development. Dr. Bello's agreement provides that Dr. Bello will  be
employed   as  the  Executive   Vice  President  for   Technology  Transfer  and
Manufacturing. Under the agreements, each executive will be entitled to  certain
upward  adjustments to the  preceding year's base salary.  Drs. Caruso and Bello
are entitled to receive continuing payments  amounting to twelve months and  six
months  salary, respectively, in  the event of their  termination by the Company
without cause. Each executive  may also receive bonuses  in such amounts and  on
such terms as determined by the Board of Directors for individual accomplishment
of  key  milestone events.  Mr. Lyle's  agreement  acknowledges that  during the
employment period he will also serve as Chief Executive Officer of U.S.  Medical
Development,  Inc. ('USMDI'), a Delaware  corporation incorporated on January 4,
1994 by the  original stockholders of  the Company. The  agreements provide  the
executives  with certain  rights under  the 1994  Stock Option  Plan. See 'Stock
Option Plans.'
 
STOCK OPTION PLANS
 
1994 Stock Option Plan
 
     Effective January 1994,  the Company established  the Algos  Pharmaceutical
Corporation  1994 Stock  Option Plan  (the '1994  Option Plan')  under which key
employees may be  granted options  to purchase  shares of  the Company's  Common
Stock.  The 1994 Option Plan is intended to assist the Company in attracting and
retaining employees of outstanding ability and to promote the identification  of
their  interests with those of the stockholders  of the Company. The Company has
reserved a total of 830,000 shares of Common Stock for issuances under the plan.
 
     Unless sooner terminated by  the Board of Directors,  the 1994 Option  Plan
will  expire ten years after its inception. The 1994 Option Plan is administered
by the Board of Directors, which has the authority to select eligible employees,
grant options under the plan and determine the terms, price, and form of payment
for each grant. Awards under the 1994  Option Plan will generally be granted  at
an exercise price equal to the then fair market value per share of Common Stock.
Options granted under the 1994 Option Plan shall not be transferable and upon an
employee's  death,  all options  that  have been  granted  to such  employee are
generally deemed to be exercisable.
 
1996 Stock Option Plan
 
     In April 1996,  the Company  adopted the  Algos Pharmaceutical  Corporation
1996  Stock  Option Plan  (the  '1996 Option  Plan').  The 1996  Option  Plan is
intended to assist  the Company in  attracting and retaining  key employees  and
independent consultants of outstanding ability and to promote the identification
of  their interests  with those  of the  stockholders of  the Company.  The 1996
Option Plan permits the grant of non-qualified stock options and incentive stock
options to  purchase shares  of  Common Stock  covering 415,000  authorized  but
unissued  or reacquired shares of Common Stock, subject to adjustment to reflect
events such  as stock  dividends, stock  splits, recapitalizations,  mergers  or
reorganizations of or by the Company.
 
     Unless  sooner terminated by  the Board of Directors,  the 1996 Option Plan
will expire on January 31, 2006.  Such termination will not affect the  validity
of any option outstanding under the 1996 Option Plan on the date of termination.
 
     The  1996 Option Plan is administered  by the Compensation Committee of the
Board of Directors of the Company  (the 'Committee') and is intended to  satisfy
the  requirements of Rule  16b-3 under the  Securities Exchange Act  of 1934, as
amended (the 'Exchange Act'), and Section 162(m) of the Internal Revenue Code of
1986, as amended (the 'Code'). Subject to  the terms and conditions of the  1996
Option  Plan, the  Committee has  the authority  to select  the persons  to whom
grants are to be made, to designate the  number of shares of Common Stock to  be
covered by such grants, to determine the exercise price of options, to establish
the period of exercisability of awards, and to make all other determinations and
to  take all other actions necessary or  advisable for the administration of the
1996 Option Plan.  The Committee  also may, in  its discretion,  provide by  the
terms of an option that such option will expire at specified times following, or
become exercisable in full upon, the occurrence of
 
                                       36
 
<PAGE>
 
<PAGE>
certain   specified  'extraordinary   corporate  events'   including  a  merger,
consolidation or dissolution of the Company,  or a sale of substantially all  of
the  Company's assets, or upon the  optionee's termination of employment, death,
disability or retirement.
 
     In the case of an incentive stock option granted to an individual who  owns
(or  is deemed to  own) at least 10%  of the total combined  voting power of all
classes of stock of the Company, the 1996 Option Plan provides that the exercise
price must be at least 110% of the fair market value of a share of Common  Stock
on  the  date of  grant. Furthermore,  the  1996 Option  Plan provides  that the
aggregate fair market value  (determined at the time  the option is granted)  of
shares  with respect to which  incentive stock options may  be granted under the
1996 Option Plan, or any other plan  of the Company, which stock is  exercisable
for the first time during any calendar year, may not exceed $100,000.
 
     The  Committee also  retains the  discretion to  determine that outstanding
options under the 1996 Option Plan  will expire upon a specified  'extraordinary
corporate  event,' but in such  event the Committee may  also give optionees the
right to exercise their outstanding options in full during some period prior  to
such  event,  even  though  the  rights  have  not  yet  otherwise  become fully
exercisable.
 
     The  1996  Option  Plan  may  be  amended  by  the  Committee,  subject  to
stockholder  approval if such approval is then  required by applicable law or in
order for the 1996 Option Plan to  continue to satisfy the requirements of  Rule
16b-3 under the Exchange Act or Code Section 162(m).
 
     The 1996 Option Plan permits the payment of the option exercise price to be
made  in cash (which may include an assignment  of the right to receive the cash
proceeds from the  sale of  Common Stock  subject to  the Option  pursuant to  a
'cashless  exercise' procedure) or by delivery  of shares of Common Stock valued
at their  fair  market value  on  the date  of  exercise or  delivery  of  other
property,  or by  a recourse  promissory note  payable to  the Company,  or by a
combination of the foregoing.
 
     Options granted  under  the 1996  Option  Plan shall  not  be  transferable
otherwise than by will, by the laws of descent and distribution or pursuant to a
qualified  domestic  relations  order  (as  defined in  the  Code),  and  may be
exercised during the optionee's lifetime only  by the optionee or, in the  event
of the optionee's legal disability, by the optionee's legal representative.
 
1996 Non-Employee Director Stock Option Plan
 
     In  April 1996,  the Company  also adopted  the 1996  Non-Employee Director
Stock Option Plan (the 'Director Plan'). The Director Plan is intended to assist
the  Company  in  attracting  and  retaining  qualified  non-employee  directors
('Outside  Directors').  The  Director  Plan is  administered  by  the  Board of
Directors  of  the  Company  (the  'Board')  and  is  intended  to  satisfy  the
requirements  of Rule 16b-3  under the Exchange Act.  The Director Plan provides
for automatic grants of non-qualified  stock options covering 83,000  authorized
but  unissued or  reacquired shares  of Common  Stock, subject  to adjustment to
reflect events such as stock dividends, stock splits, recapitalizations, mergers
or reorganizations of or by the Company.
 
     The exercise price of the options shall be the fair market value of a share
of Common Stock on the  date of grant. Each  option shall become exercisable  in
cumulative  annual  installments  of  one-third  on  each  of  the  first  three
anniversaries of the date of grant so long as the Outside Director continues  to
serve  as a director of the Company;  provided, however, to the extent permitted
by Rule 16b-3, the Board may  accelerate the exercisability of options upon  the
occurrence  of certain specified extraordinary  corporate transactions or events
and provided further, that  in any event,  upon the occurrence  of a 'Change  in
Control'  of  the Company  (as  defined in  the  Director Plan)  all outstanding
options shall become immediately exercisable. No  portion of an option shall  be
exercisable  after the tenth anniversary of the  date of grant and no portion of
an option shall be exercisable  following termination of the Outside  Director's
services as director of the Company.
 
     Unless  sooner terminated  by the Board,  the Director Plan  will expire on
ten years after the date of its adoption. Such  expiration will  not  affect the
validity of  any  option outstanding on the date of termination.
 
     Each  Outside Director serving as a director of the Company as of the close
of each subsequent annual stockholder's  meeting at which directors are  elected
shall be granted an option to purchase 5,000 shares of Common Stock.
 
                                       37
 
<PAGE>
 
<PAGE>
CERTAIN FEDERAL INCOME TAX CONSEQUENCES WITH RESPECT TO OPTIONS UNDER THE 1994
OPTION PLAN, 1996 OPTION PLAN AND THE DIRECTOR PLAN
 
     An  optionee generally will not recognize taxable  income on the grant of a
non-qualified stock option under the 1994  Option Plan, 1996 Option Plan or  the
Director  Plan,  but will  recognize  ordinary income  on  the exercise  of such
option. The amount of income recognized  on the exercise of an option  generally
will  be equal to the excess, if any, of  the fair market value of the shares at
the time of  exercise over  the aggregate exercise  price paid  for the  shares,
regardless  of whether the exercise price is paid  in cash or in shares or other
property. Where ordinary income is recognized by an optionee in connection  with
the exercise of an option, the Company generally will be entitled to a deduction
equal to the amount of ordinary income so recognized.
 
     An  optionee generally  will not recognize  taxable income  upon either the
grant or exercise  of an incentive  stock option granted  under the 1996  Option
Plan. Generally, upon the sale or other taxable disposition of the shares of the
Common  Stock acquired upon exercise of  an incentive stock option, the optionee
will recognize long-term capital gain in an amount equal to the excess, if  any,
of  the  amount realized  in such  disposition over  the option  exercise price,
provided that no disposition of the shares has taken place within either (a) one
year from the date of exercise  or (b) two years from  the date of grant of  the
incentive  stock option. If the shares of the Common Stock are sold or otherwise
disposed of before the end of the one-year and two-year periods specified above,
the difference between the  incentive stock option exercise  price and the  fair
market  value of the shares on the date of the incentive stock option's exercise
generally will be taxable as ordinary income; the balance of the amount realized
from such disposition, if any, will be  taxed as capital gain. If the shares  of
the  Common Stock  are disposed  of before  the expiration  of the  one-year and
two-year periods and the amount realized is  less than the fair market value  of
the  shares at the date of exercise, the optionee's ordinary income generally is
limited to excess, if any, of the  amount realized in such disposition over  the
option  exercise  price  paid.  The  Company  (or  other  employer  corporation)
generally will be entitled to a tax deduction with respect to an incentive stock
option only to the extent  the optionee has ordinary  income upon sale or  other
disposition of the shares of the Common Stock.
 
     The  rules governing the tax treatment of options and an optionee's receipt
of shares in connection with such grants are quite technical, so that the  above
description  of tax consequences  is necessarily general in  nature and does not
purport to be complete. Moreover,  statutory provisions are, of course,  subject
to  change,  as are  their interpretations,  and their  application may  vary in
individual circumstances. Finally, the  tax consequences under applicable  state
law may not be the same as under the federal income tax laws.
 
                                       38
 
<PAGE>
 
<PAGE>
                             PRINCIPAL STOCKHOLDERS
 
     The  following table  sets forth  certain information  with respect  to the
beneficial ownership of  the Company's  Common Stock as  of May  1, 1996  (after
giving  effect to  the automatic conversion  of the Preferred  Stock into Common
Stock upon consummation of the Offering) by (i) each person who is known by  the
Company  to own beneficially  more than 5%  of the Company's  Common Stock, (ii)
each director, (iii) each executive officer and (iv) all directors and executive
officers of the Company as a  group. Unless otherwise indicated, the address  of
each  beneficial owner  is c/o  the Company,  Collingwood Plaza,  4900 Route 33,
Neptune, New Jersey, 07753.
 
<TABLE>
<CAPTION>
                                                                                                   PERCENTAGE OF SHARES
                                                                                                    BENEFICIALLY OWNED
                                                                                                   --------------------
                                                                            NUMBER OF SHARES       PRIOR TO     AFTER
                       NAME OF BENEFICIAL OWNER                          BENEFICIALLY OWNED (a)    OFFERING    OFFERING
- ----------------------------------------------------------------------   ----------------------    --------    --------
 
<S>                                                                      <C>                       <C>         <C>
DIRECTORS AND EXECUTIVE OFFICERS
     John W. Lyle(b)..................................................          1,517,516            12.5%        9.7%
     Frank S. Caruso..................................................            265,600             2.2         1.7
     Gastone Bello....................................................            116,200               *        *
     Donald G. Drapkin(c).............................................             16,600               *        *
     James R. Ledley..................................................            103,750               *        *
     Dieter A. Sulser(d)..............................................            153,550             1.3        *
Directors and Executive Officers as a group(e)........................          2,173,216            18.0        14.0
OTHER PRINCIPAL STOCKHOLDERS
     Unifina Holding AG and related investors(f)......................          1,722,250            14.1        11.0
     Roger H. Kimmel(g)...............................................          1,593,599            13.2        10.3
     Karen Lyle(h)....................................................          1,517,516            12.5         9.7
     Michael Hyatt(i).................................................          1,193,813             9.9         7.7
     Lawrence Canarelli(j)............................................            871,500             7.2         5.6
     Gilbert Goldstein(k).............................................            850,750             7.1         5.5
     Morris J. Kramer(l)..............................................            809,244             6.7         5.2
     Inez Kimmel(m)...................................................            708,266             5.9         4.6
     Gail Albert(n)...................................................            664,000             5.5         4.3
</TABLE>
 
- ------------
 
*  represents less than 1.0%
 
 (a) For purposes of this table, a person or group is deemed to have 'beneficial
     ownership' of any shares which such person has the right to acquire  within
     60  days after the date of this Prospectus. For purposes of calculating the
     percentage of  outstanding shares  held  by each  person named  above,  any
     shares  which such person has the right to acquire within 60 days after the
     date of  the Prospectus  are deemed  to  be outstanding,  but not  for  the
     purpose of calculating the percentage ownership of any other person.
 
 (b) Includes (i) 74,700 shares of Common Stock owned directly by Mr. Lyle, (ii)
     1,363,966  shares of Common  Stock and options to  purchase 4,150 shares of
     Common Stock owned by Karen  Lyle, wife of Mr. Lyle,  as to which Mr.  Lyle
     disclaims  beneficial ownership, (iii) options to purchase 74,700 shares of
     Common Stock, and excludes 664,000 shares  of Common Stock held in a  trust
     for  the benefit of the  children of Mr. and Mrs.  Lyle, as to which shares
     Mr. Lyle has neither the power of disposition nor the power to vote.
 
 (c) Excludes a total of 809,244 shares of  Common Stock held in six trusts  for
     the  benefit of the children of Mr. Drapkin, as to which shares Mr. Drapkin
     has neither the power of disposition nor the power to vote.
 
 (d) Excludes 1,871,650  shares beneficially owned by  Unifina Holding AG, as to
     which shares  Mr. Sulser disclaims beneficial ownership.  Mr. Sulser is the
     General Manager of Unifina Holding AG.
 
 (e) Includes options and warrants to purchase 87,150 shares of Common Stock.
 
 (f) Consists  of  1,577,000  shares of  Common  Stock  and  157,700 warrants to
     purchase  shares  of  Common  Stock  held by EBC Zurich AG.  The address of
     Unifina  Holding  AG  is Zurcherstrasse  62;  CH 8406,  Winterthur  and the
     address  of EBC Zurich AG is Bellariastrasse 23;  CH 8027, Zurich. Excludes
     (i) 166,000 shares of Common Stock and warrants to purchase  16,600  shares
     of Common Stock held by Mr. Rolf P. Erb, Chairman  of  EBC  Zurich  AG  and
     a  member  of  the  board  of  directors of Unifina Holding AG, as to which
     shares each of Unifina Holding  AG  and  EBC Zurich  AG disclaim beneficial
     ownership  and  (ii)  141,100  shares  of  Common  Stock  and  warrants  to
     purchase  12,450  shares  of  Common  Stock  owned by Mr.  Sulser,  General
     Manager  of  Unifina  Holding  AG,  as  to  which shares Unifina Holding AG
     disclaims beneficial ownership.
 
                                       39
 
<PAGE>
 
<PAGE>
(footnotes continued from previous page)
 
 (g) Includes  (i) 708,266 shares of Common Stock owned directly by Inez Kimmel,
     wife of Mr. Kimmel, as to  which Mr. Kimmel disclaims beneficial  ownership
     and  (ii) 885,333 shares held in two  trusts for which Mr. Kimmel serves as
     trustee and as  to which shares  Mr. Kimmel  holds either the  sole or  the
     shared  power of disposition and power to vote, and excludes 343,066 shares
     of Common Stock held in two trusts  for the benefit of the children of  Mr.
     and  Mrs. Kimmel, as  to which shares  Mr. Kimmel has  neither the power of
     disposition nor the power to vote.
 
 (h) Includes (i) 1,363,966 shares of Common Stock and options to purchase 4,150
     shares of Common Stock, owned directly by Mrs. Lyle and (ii) 74,700  shares
     of Common Stock and options to purchase 74,700 shares of Common Stock owned
     by  directly by  John Lyle,  husband of  Mrs. Lyle,  as to  which Mrs. Lyle
     disclaims beneficial ownership, and excludes 664,000 shares of Common Stock
     held in a trust for the benefit of the children of Mr. and Mrs. Lyle, as to
     which shares Mrs. Lyle has neither the power to dispose of nor the power to
     vote.
 
 (i) Includes (i) 830,000 shares of Common Stock owned directly by Mr. Hyatt and
     (ii) 363,813 shares  held in  three trusts for  which Mr.  Hyatt serves  as
     trustee  and as  to which  shares Mr.  Hyatt holds  either the  sole or the
     shared power  to dispose  of or  the power  to vote,  and excludes  221,333
     shares  of Common Stock held in a trust  for the benefit of the children of
     Mr. Hyatt,  as  to  which  shares  Mr.  Hyatt  has  neither  the  power  of
     disposition nor the power to vote.
 
 (j) Includes  664,000 shares  deemed to be  beneficially owned by  each of Mrs.
     Albert and Mr. Canarelli in their  shared capacity as trustees for a  trust
     as to which shares each of Mrs. Albert and Mr. Canarelli share the power of
     disposition and the power to vote.
 
 (k) Includes  809,250 shares of Common Stock deemed to be beneficially owned by
     Mr. Goldstein in his capacity as trustee for a trust as to which shares Mr.
     Goldstein has the sole power of disposition and power to vote.
 
 (l) Includes 809,244 shares deemed  to be beneficially owned  by Mr. Kramer  in
     his capacity as trustee for a trust as to which shares Mr. Kramer holds the
     power of disposition and the power to vote.
 
(m) Excludes  (i) 885,333 shares beneficially owned  by Roger Kimmel, husband of
    Mrs. Kimmel, as trustee and as to which Mr. Kimmel holds either the sole  or
    shared  power of disposition  and power to  vote and (ii)  343,066 shares of
    Common Stock held in two trusts for  the benefit of the children of Mr.  and
    Mrs.  Kimmel,  as to  which  shares Mrs.  Kimmel  has neither  the  power of
    disposition nor the power to vote.
 
 (n) Includes 664,000 shares  deemed to be  beneficially owned by  each of  Mrs.
     Albert  and Mr. Canarelli in their shared  capacity as trustees for a trust
     as to which shares each of Mrs. Albert and Mr. Canarelli share the power of
     disposition and the power to vote.
 
                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
     Mr. James R. Ledley, a director of the Company, is a member of the law firm
of Kleinberg, Kaplan, Wolff & Cohen, P.C. which performs legal services for  the
Company from time to time.
 
                                       40
 
<PAGE>
 
<PAGE>
                          DESCRIPTION OF CAPITAL STOCK
 
     Upon  consummation of  the Offering,  the authorized  capital stock  of the
Company will consist of  50,000,000 shares of Common  Stock, $.01 par value  per
share, and 10,000,000 shares of Preferred Stock, $.01 par value per share.
 
COMMON STOCK
 
     Holders  of Common Stock  are entitled to  one vote for  each share held of
record on all matters submitted to a vote of the stockholders. Holders of Common
Stock are not entitled to cumulative voting rights. Holders of Common Stock  are
entitled  to receive ratably such  dividends as may be  declared by the Board of
Directors out  of  funds  legally  available  therefor.  The  Company  does  not
anticipate  any cash dividends on  Common Stock will be  paid in the foreseeable
future. See 'Dividend  Policy.' In the  event of a  liquidation, dissolution  or
winding up of the Company, holders of Common Stock are entitled to share ratably
in all assets remaining after payment of liabilities, and payments to holders of
Preferred  Stock. The holders of  Common Stock have no  preemptive rights and no
right to convert  their Common  Stock into any  other securities.  There are  no
redemption  or sinking fund  provisions applicable to the  Common Stock. All the
outstanding shares of  Common Stock  are, and the  shares of  Common Stock  into
which  the Preferred  Shares will be  converted upon completion  of the Offering
will be, validly issued, fully paid and non-assessable.
 
PREFERRED STOCK
 
     Under its Certificate, the Company has authority to issue 10,000,000 shares
of Preferred Stock,  $.01 par value  per share.  The Board of  Directors of  the
Company has the authority, without approval of the stockholders, to issue shares
of Preferred Stock in one or more series and to fix the number of shares and the
rights, preferences, privileges, qualifications, restrictions and limitations of
each  series. Following the consummation of the Offering, no shares of preferred
stock will be issued or outstanding.
 
REGISTRATION RIGHTS
 
     The holders of the Company's Common Stock and Preferred Stock prior to  the
Offering  (the 'Stockholders'),  are parties  to a  stockholder's agreement (the
'Stockholders'  Agreement')  which  provides  such  Stockholders  with   certain
registration  rights. Under  the Stockholders'  Agreement, the  Stockholders are
entitled to certain registration rights with respect to their shares,  including
a  demand registration right which is exercisable on one occasion after 270 days
from the date  of this  Prospectus and certain  'piggyback' registration  rights
which  are exercisable in  connection with registrations  of shares initiated by
the Company.
 
DELAWARE LAW AND CERTAIN CHARTER AND BY-LAW PROVISIONS
 
     Upon the consummation of the Offering,  the Company will be subject to  the
provisions   of  Section  203  of  the  Delaware  General  Corporation  Law,  an
anti-takeover law. In  general, Section 203  prohibits a publicly-held  Delaware
corporation  from  engaging  in  a 'business  combination'  with  an 'interested
stockholder' for a period of  three years after the  date of the transaction  in
which  the person became  an interested stockholder  unless such transaction was
approved in a  prescribed manner  or another prescribed  exception applies.  For
purposes  of Section 203, a 'business combination' is defined broadly to include
a merger, asset sale  or other transaction resulting  in a financial benefit  to
the  interested stockholder, and  subject to certain  exceptions, an 'interested
stockholder' is a person who, together  with affiliates and associates owns  (or
within  three years  prior, did  own) 15%  or more  of the  corporation's voting
stock.
 
     Upon consummation of the Offering,  the Company's Restated By-Laws  provide
for  a  Board of  Directors classified  into three  classes, with  the Directors
elected at the  Company's 1996  annual meeting  divided into  three classes  and
serving  initial terms expiring at the  1997, 1998 and 1999 annual stockholders'
meetings, respectively. Thereafter, Directors in each class will be elected  for
three  year terms. No determination has yet been made as to the selection of any
of the current directors for nomination for election in a particular class.  All
directors  elected to  the Company's  classified Board  of Directors  will serve
until the  election  and qualification  of  their successors  or  their  earlier
resignation  or  removal. The  Board of  Directors is  authorized to  create new
directorships and to fill such positions so created and is permitted to  specify
the  class to which such  new position is assigned,  and the person filling such
position would  serve  for the  term  applicable to  that  class. The  Board  of
Directors (or its
 
                                       41
 
<PAGE>
 
<PAGE>
remaining  members, even though  less than a  quorum) is also  empowered to fill
vacancies on the Board of Directors  occurring for any reason for the  remainder
of  the term  of the  class of  Directors in  which the  vacancy occurred. After
classification of the  Board of  Directors, Directors  may only  be removed  for
cause.   These  provisions  are  likely  to   increase  the  time  required  for
stockholders to change the composition of the Board of Directors.
 
     The Company's Restated  By-Laws also  provide that, for  nomination to  the
Board of Directors or for other business to be properly brought by a stockholder
before  a meeting of stockholders, the  stockholder must first have given timely
notice thereof in  writing to  the Secretary  of the  Company. To  be timely,  a
stockholder's  notice generally must  be delivered not less  than sixty days nor
more than ninety  days prior to  the annual meeting.  If the meeting  is not  an
annual meeting, the notice must generally be delivered not more than ninety days
prior to the special meeting and not later than the later of sixty days prior to
the  special meeting and ten days following the day on which public announcement
of the  meeting is  first  made by  the Company.  Only  such business  shall  be
conducted  at a special meeting of stockholders as is brought before the meeting
pursuant to the Company's  notice of meeting. The  notice by a stockholder  must
contain,   among  other  things,  certain   information  about  the  stockholder
delivering the  notice  and, as  applicable,  background information  about  the
nominee  or a  description of  the proposed  business to  be brought  before the
meeting.
 
     The Company's Restated Certificate of Incorporation also requires that  any
action  required or permitted to be taken by stockholders of the Company must be
effected at a duly called annual or special meeting of stockholders and may  not
be  effected by a consent in writing. Special meetings may be called only by the
Chairman of the Board or the President of the Company or by the majority of  the
whole Board of Directors.
 
     The   Delaware  General   Corporation  Law  provides   generally  that  the
affirmative vote of a majority of the  shares entitled to vote on any matter  is
required  to  amend a  corporation's  certificate of  incorporation  or by-laws,
unless the corporation's certificate  of incorporation or  by-laws, as the  case
may  be, requires  a greater percentage.  The Company's  Restated Certificate of
Incorporation requires the affirmative vote of  the holders of at least 66  2/3%
of  the outstanding voting  stock of the Company  to amend or  repeal any of the
provisions discussed in this section entitled 'Delaware Law and Certain  Charter
and  By-Law Provisions' or to  reduce the number of  authorized shares of Common
Stock and Preferred Stock. Such 66 2/3% vote is also required for any  amendment
to or repeal of the Company's Restated By-Laws by the stockholders. The Restated
By-Laws  may also  be amended  or repealed by  a majority  vote of  the Board of
Directors. Such 66 2/3%  stockholder vote would be  in addition to any  separate
class  vote that might  in the future be  required pursuant to  the terms of any
Preferred Stock that might then be outstanding.
 
     The provisions of the Company's  Restated Certificate of Incorporation  and
Restated By-Laws discussed above could make more difficult or discourage a proxy
contest  or other change in the management  of the Company or the acquisition or
attempted acquisition  of control  by a  holder of  a substantial  block of  the
Company's  stock.  It  is  possible  that such  provisions  could  make  it more
difficult to accomplish,  or could  deter, transactions  which stockholders  may
otherwise consider to be in their best interests.
 
     As  permitted  by  the  Delaware  General  Corporation  Law,  the Company's
Restated Certificate of  Incorporation provides  that Directors  of the  Company
shall  not be personally liable to the  Company or its stockholders for monetary
damages for breach of their fiduciary duties as Directors, except for  liability
(i) for any breach of their duty of loyalty to the Company and its stockholders,
(ii)  for  acts or  omissions not  in  good faith  or which  involve intentional
misconduct or  a  knowing violation  of  law,  (iii) for  unlawful  payments  of
dividends  or unlawful stock repurchases or  redemptions, as provided in Section
174 of the  Delaware General Corporation  Law or (iv)  for any transaction  from
which the Director derives an improper personal benefit.
 
     The  Company's Restated  Certificate of Incorporation  and Restated By-Laws
provide that  the Company  shall indemnify  its Directors  and officers  to  the
fullest  extent permitted by Delaware Law and advance expenses to such Directors
and officers  to defend  any  action for  which  rights of  indemnification  are
provided.
 
                                       42
 
<PAGE>
 
<PAGE>
                        SHARES ELIGIBLE FOR FUTURE SALE
 
     Upon  completion of this Offering, the  Company will have 15,544,119 shares
of Common Stock  outstanding (assuming  no exercise  of any  of the  outstanding
options  and warrants to purchase Common Stock outstanding as of May 1, 1996 and
assuming the Underwriters'  over-allotment option  is not  exercised), of  which
12,044,119  are 'restricted'  shares within  the meaning  of Rule  144 under the
Securities Act of 1933, as amended (the 'Securities Act'), and may not be resold
except pursuant to an effective registration statement under the Securities  Act
or  an  applicable  exemption  from  registration,  including  Rule  144  of the
Securities Act.
 
     In general, under Rule  144, as currently in  effect, a person (or  persons
whose  shares  are  aggregated), including  an  'affiliate', as  defined  in the
Securities Act, is entitled to sell in any three-month period a number of shares
beneficially owned for at least  two years that does  not exceed the greater  of
(i) 1% of the then outstanding shares of Common Stock or (ii) the average weekly
trading volume in the Common Stock during the four calendar weeks preceding such
sale.  Sales under Rule 144  are also subject to  certain requirements as to the
manner of sale, notice and the availability of current public information  about
the  Company. A person  who is not  an affiliate and  has beneficially held such
shares for at  least three  years is  entitled to  sell such  shares under  Rule
144(k)  without  regard  to  the  volume,  manner  of  sale,  notice  or  public
information  requirements.  Subject  to  the  agreement  with  the  underwriters
described  in  the next  paragraph, as  of  August 22,  1996, 11,640,739  of the
restricted shares will be eligible for sale in the public market in reliance  on
Rule 144, 4,537,326 of which may be sold without regard to volume limitations.
 
     For  a period of  180 days after  the closing of  the Offering, without the
written consent of  Lehman Brothers Inc.,  the Company and  all of its  existing
stockholders have agreed not to offer, sell or contract to sell, grant any offer
to  purchase  or otherwise  dispose of  any  shares of  common stock  other than
issuances  pursuant  to  employee  compensation  plans,  transfers  among   such
stockholders,  pledges, in the case of death or permanent disability and certain
limited charitable donations.
 
     An employee,  officer or  director  of or  consultant  to the  Company  who
purchased  or was  awarded shares  or options to  purchase shares  pursuant to a
written compensatory  plan  or  contract  is entitled  to  rely  on  the  resale
provision of Rule 701 under the Securities Act, which permits Affiliates to sell
their  Rule 701 shares without  having to comply with  Rule 144's holding period
restrictions, in  each case  commencing 90  days after  the Effective  Date  and
permits  non-affiliates to sell  their Rule 701 shares  without having to comply
with the holding  period, public  information, volume and  notice provisions  of
Rule 144.
 
     Under  the Stockholders Agreement, holders of shares of Common Stock issued
prior  to  this  Offering  or  issuable  under  certain  options  and   warrants
outstanding  prior to this Offering are  entitled to certain registration rights
with respect to  their shares, including  a demand registration  right which  is
exercisable  on one occasion after 270 days from the date of this Prospectus and
certain 'piggyback' registration rights which are exercisable in connection with
registrations of shares initiated  by the Company.  See 'Description of  Capital
Stock Registration Rights.'
 
     Prior  to this Offering, there has been  no public market for securities of
the Company. No predictions can be made as to the effect, if any, that sales  of
shares or the availability of shares for sale will have on the prevailing market
price of the Company's Common Stock. In addition, the Company cannot predict the
number  of shares that  may be sold  in the future  pursuant to Rule  144 or the
timing of such sales. Sales of  a substantial number of Restricted Shares  could
have a significant adverse effect on the market price of the Common Stock.
 
                                       43
 
<PAGE>
 
<PAGE>
              CERTAIN UNITED STATES FEDERAL TAX CONSIDERATIONS FOR
                           NON-UNITED STATES HOLDERS
 
     The  following is  a general  discussion of  certain United  States federal
income and estate tax  consequences of the ownership  and disposition of  Common
Stock  by a holder who is not a  United States person (a 'Non-U.S. Holder'). For
these purposes, the term 'United States person' is defined as any person who  is
a  citizen or resident of  the United States, a  corporation or a partnership or
other entity created or organized in the United States or under the laws of  the
United  States or of any State, or an estate or trust whose income is includible
in gross income for United States federal income tax purposes regardless of  its
source.  An individual  may, subject  to certain exceptions,  be deemed  to be a
resident alien  (as opposed  to a  non-resident alien)  for federal  income  tax
purposes  in several circumstances, including by  virtue of being present in the
United States on at least 31 days in  the calendar year and for an aggregate  of
at  least 183 days during  the three-year period ending  in the current calendar
year (counting for such purposes  all of the days  present in the current  year,
one-third  of the days present in  the immediately preceding year, and one-sixth
of the days present in the  second preceding year). Resident aliens are  subject
to  United  States  federal tax  as  if  they were  United  States  citizens and
residents.
 
     This discussion is  based on  provisions of  the Internal  Revenue Code  of
1986,  as amended  (the 'Code'),  existing and  proposed regulations promulgated
thereunder and administrative  and judicial  interpretations thereof  as of  the
date  hereof,  all of  which are  subject  to change.  This discussion  does not
address all aspects of  United States federal income  and estate taxes and  does
not  deal with non-United States and U.S.  state and local consequences that may
be relevant to Non-U.S. Holders in  light of their personal circumstances.  Each
prospective  purchaser of Common Stock is advised  to consult a tax advisor with
respect to current and  possible future tax  consequences of acquiring,  holding
and disposing of Common Stock.
 
DIVIDENDS
 
     The  Company does not currently  intend to pay cash  dividends on shares of
Common Stock. See  'Dividend Policy.' In  the event that  dividends are paid  on
shares  of Common  Stock, except  as described below,  such dividends  paid to a
Non-U.S. Holder of  Common Stock  generally will  be subject  to withholding  of
United  States federal income  tax at a  30% rate or  such lower rate  as may be
specified  by  an  applicable  income  tax  treaty,  unless  the  dividends  are
effectively  connected with the conduct  of a trade or  business of the Non-U.S.
Holder  within  the  United  States   (or  attributable  to  a  U.S.   permanent
establishment  of the Non-U.S.  Holder, if an income  tax treaty applies). Under
current United States Treasury regulations, dividends paid to an address outside
the United States, absent definite knowledge to the contrary, may be presumed to
be paid to a resident of such country for purposes of the withholding  discussed
above,   and,  under  the  current  interpretation  of  United  States  Treasury
regulations, for purposes of determining the applicability of a reduced rate  of
withholding  under a tax  treaty. Thus, Non-U.S.  Holders receiving dividends at
addresses outside the  United States currently  are not required  to file  forms
with  the payor  in order to  obtain the  benefit of an  applicable treaty rate.
Under proposed  United  States Treasury  regulations  not currently  in  effect,
however, a Non-U.S. Holder of Common Stock who wishes to claim the benefit of an
applicable treaty rate would be required to satisfy applicable certification and
other requirements.
 
     If  the  dividend is  effectively connected  with the  conduct of  a United
States trade or business of a Non-U.S. Holder who has properly filed a Form 4224
(or similar statement) with  the withholding agent with  respect to the  taxable
year  in which  the dividend  is paid, no  withholding is  required. Instead the
dividend (as adjusted by any applicable deductions) would be subject to  regular
United  States federal  income tax. In  addition, all  or a portion  of any such
effectively connected dividends  received by a  non-U.S. corporation may,  under
certain circumstances, be subject to an additional 'branch profits tax' at a 30%
rate or such lower rate as may be specified by an applicable income tax treaty.
 
     A  Non-U.S. Holder of  Common Stock eligible  for a reduced  rate of United
States withholding tax  pursuant to  a tax  treaty may  obtain a  refund of  any
excess amounts currently withheld by filing an appropriate claim for refund with
the Internal Revenue Service ('IRS').
 
                                       44
 
<PAGE>
 
<PAGE>
GAIN ON DISPOSITION OF COMMON STOCK
 
     A  Non-U.S. Holder generally  will not be subject  to United States federal
income tax  (and  no  tax generally  will  be  withheld) with  respect  to  gain
recognized  on a sale  or other disposition of  Common Stock so  long as (i) the
gain is  not effectively  connected with  a trade  or business  of the  Non-U.S.
Holder  within the United States, (ii) in the case of a Non-U.S. Holder who is a
non-resident alien individual  and holds the  Common Stock as  a capital  asset,
such  holder is not  present in the  United States for  183 or more  days in the
taxable year of the sale or other disposition, and (iii) the Company is not  and
has  not been  within the  preceding five years  a 'United  States real property
holding corporation' for United States federal income tax purposes (assuming the
Common Stock  is regularly  traded  on an  established securities  market).  The
Company  believes that it is  not, has at no time  been, and does not anticipate
becoming a 'United States real  property holding corporation' for United  States
federal  income tax purposes. In addition,  the Company believes that the Common
Stock will be treated as regularly traded on an established securities market.
 
     If the capital gain is effectively connected with the conduct of a trade or
business of the Non-U.S. Holder within the  United States, or if the Company  is
or  has  been within  the preceding  five  years a  United States  real property
holding corporation  and  the  Non-U.S.  Holder is  more  than  a  five  percent
stockholder  (applying  certain attribution  rules), the  capital gain  would be
subject to regular United States federal  income tax. In addition, with  respect
to corporate Non-U.S. Holders, the 'branch profits tax' described above may also
apply. An individual Non-U.S. Holder who is present in the United States for 183
days  or more  in the taxable  year of sale  or other disposition  and holds the
Common Stock as a capital asset will generally be taxed at a rate of 30% on  any
net  capital gain recognized  during any year  on such stock  if either (i) such
individual has a  'tax home' (as  defined for United  States federal income  tax
purposes)  in the United States or (ii) the gain is attributable to an office or
other fixed place of business maintained by such individual in the United States
and no treaty exemption applies.
 
UNITED STATES INFORMATION REPORTING REQUIREMENTS AND BACKUP WITHHOLDING TAX
 
     The Company must report annually to the IRS and to each Non-U.S. Holder the
amount of dividends paid to, and the tax withheld with respect to, such  holder.
These information reporting requirements apply regardless of whether withholding
was  reduced  or  eliminated  by  an  applicable  tax  treaty.  Copies  of these
information returns  may  also be  made  available  under the  provisions  of  a
specific  treaty or agreement to  the tax authority in  the country in which the
Non-U.S. Holder  resides. Under  temporary United  States Treasury  regulations,
United  States  backup withholding  tax (which  generally  is a  withholding tax
imposed at the rate of 31% on  certain payments to persons that fail to  furnish
certain  information under the United States information reporting requirements)
and information reporting with respect to  such tax will generally not apply  to
dividends  paid on Common Stock  to a Non-U.S. Holder  at an address outside the
United States.
 
     As a general matter, backup withholding and information reporting also will
not apply to a payment of the proceeds of a sale of Common Stock by or through a
foreign office of a foreign broker. Information reporting requirements (but  not
backup  withholding) will apply, however, to a payment of the proceeds of a sale
of Common Stock by a foreign office of a broker that is a United States  person,
that  derives  50% or  more of  its gross  income for  certain periods  from the
conduct of a trade or  business in the United States,  or that is a  'controlled
foreign  corporation'  (generally, a  foreign  corporation controlled  by United
States stockholders) with respect  to the United States,  unless the broker  has
documentary  evidence in its  records that the  holder is a  Non-U.S. Holder and
certain other  conditions  are  met,  or the  holder  otherwise  establishes  an
exemption.  Payment by a United  States office of a broker  of the proceeds of a
sale of  Common Stock  is subject  to both  backup withholding  and  information
reporting  unless the holder certifies  under penalties of perjury  that it is a
Non-U.S. Holder, or otherwise establishes an exemption.
 
     Backup withholding (at a flat 31%  rate) is not an additional tax.  Rather,
the  tax liability of persons  subject to backup withholding  will be reduced by
the amount of tax withheld. If withholding results in an overpayment of taxes, a
Non-U.S. Holder may obtain a refund  by filing the appropriate claim for  refund
with the IRS.
 
                                       45
 
<PAGE>
 
<PAGE>
     These  backup withholding and information  reporting rules are under review
by the United States Treasury, and  their application to the Common Stock  could
be  changed  prospectively by  future regulations.  On April  15, 1996,  the IRS
issued proposed  Treasury  Regulations concerning  the  withholding of  tax  and
reporting  for  certain amounts  paid  to non-resident  individuals  and foreign
corporations. The proposed regulations would, among other changes, eliminate the
presumption  under  current  regulations  with  respect  to  dividends  paid  to
addresses  outside  the  United States.  See  'Dividends on  Common  Stock.' The
proposed Treasury  Regulations,  if adopted  in  their present  form,  would  be
effective  for payments made after December  31, 1997. Prospective purchasers of
Common Stock should consult their tax advisors concerning the potential adoption
of such Treasury Regulations and the potential effect on the Common Stock.
 
FEDERAL ESTATE TAXES
 
     Common Stock held (or treated as owned) by an individual Non-U.S. Holder at
the time of  death will be  included in  such holder's gross  estate for  United
States  federal estate tax purposes and may  be subject to United States federal
estate tax, unless an applicable  estate tax treaty provides otherwise.  Estates
of  non-resident aliens  are generally allowed  a statutory credit  which is the
equivalent of  an exclusion  of $60,000  of  assets from  U.S. estate  tax.  Tax
treaties may permit a larger credit.
 
                                       46
 
<PAGE>
 
<PAGE>
                                  UNDERWRITING
 
     Under the terms and subject to the conditions contained in the Underwriting
Agreement,  the  form  of which  is  filed  as an  exhibit  to  the Registration
Statement of which this Prospectus forms  a part, the Underwriters named  below,
for  whom Lehman  Brothers Inc.,  Cowen &  Company and  ABB Aros  Securities are
acting as  representatives (the  'Representatives'),  have severally  agreed  to
purchase  from  the  Company,  and  the  Company  has  agreed  to  sell  to each
Underwriter, the aggregate number of shares  of Common Stock set forth  opposite
the name of each such Underwriter below:
 
<TABLE>
<CAPTION>
                                                                                           NUMBER OF
    UNDERWRITERS                                                                            SHARES
- ----------------------------------------------------------------------------------------   ---------
 
<S>                                                                                        <C>
Lehman Brothers Inc. ...................................................................
Cowen & Company.........................................................................
ABB Aros Securities.....................................................................
 
                                                                                           ---------
     Total..............................................................................   3,500,000
                                                                                           ---------
                                                                                           ---------
</TABLE>
 
     The  Company has been advised by  the Representatives that the Underwriters
propose to offer the shares of Common Stock to the public at the initial  public
offering  price set forth  on the cover  page hereof, and  to certain dealers at
such initial public offering  price less a selling  concession not in excess  of
$    per share.  The Underwriters  may allow,  and such  dealers may  reallow, a
concession not in excess  of $   per share to certain  other Underwriters or  to
certain  other brokers or dealers. After the initial offering to the public, the
offering price and other selling terms may be changed by the Representatives.
 
     The  Underwriting   Agreement  provides   that  the   obligations  of   the
Underwriters  to  pay for  and accept  delivery  of the  shares of  Common Stock
offered hereby are subject to approval  of certain legal matters by counsel  and
to  certain  other  conditions,  including  the  condition  that  no  stop order
suspending the effectiveness of the Registration  Statement is in effect and  no
proceedings  for such  purpose are pending  or threatened by  the Securities and
Exchange Commission and that  there has been no  material adverse change or  any
development  involving a prospective material adverse change in the condition of
the Company from that set forth in the Registration Statement otherwise than  as
set  forth or  contemplated in this  Prospectus, and  that certain certificates,
opinions and letters have  been received from the  Company and its counsel.  The
Underwriters are obligated to take and pay for all of the above shares of Common
Stock if any such shares are taken.
 
     The  Company and the Underwriters have agreed in the Underwriting Agreement
to indemnify each other against certain liabilities, including liabilities under
the Securities Act.
 
     The Company has granted to the Underwriters an option to purchase up to  an
additional   525,000  shares  of  Common  Stock,  exercisable  solely  to  cover
over-allotments, at the  initial public  offering price,  less the  underwriting
discounts  and  commissions shown  on the  cover page  of this  Prospectus. Such
option may  be exercised  at  any time  until  30 days  after  the date  of  the
Underwriting  Agreement.  To  the  extent that  the  option  is  exercised, each
Underwriter will be committed to purchase  a number of the additional shares  of
Common Stock proportionate to each Underwriter's initial commitment as indicated
in the preceding table.
 
     The  Representatives of the Underwriters have informed the Company that the
Underwriters do not intend to confirm sales to accounts over which they exercise
discretionary authority.
 
     For a period of  180 days, without the  written consent of Lehman  Brothers
Inc., the Company and all of its existing stockholders have agreed not to offer,
sell  or contract to sell,  grant any offer to  purchase or otherwise dispose of
any shares of common stock other than issuance pursuant to employee compensation
plans, transfers  among such  stockholders, pledges,  in the  case of  death  or
permanent disability and certain limited charitable donations.
 
                                       47
 
<PAGE>
 
<PAGE>
     At the request of the Company, the Underwriters have reserved up to 300,000
shares  of Common Stock for sale at the initial public offering price to certain
of the Company's employees  and certain other persons.  The number of shares  of
Common  Stock available for  sale to the  general public will  be reduced to the
extent these persons purchase such reserved shares. If such reserved shares  are
not  purchased by such employees and other  persons, they will be offered by the
Underwriters to the public upon the same terms and conditions set forth in  this
Prospectus.
 
     Prior  to the  Offering, there  has been  no public  market for  the Common
Stock. The initial public offering price was negotiated between the Company  and
the  Representatives. Among  the factors  considered in  determining the initial
public offering price of the Common Stock, in addition to the prevailing  market
conditions,  were  the  Company's  historical  performance,  capital  structure,
estimates of the business  potential and earnings prospects  of the Company,  an
assessment of the Company's management and consideration of the above factors in
relation  to market  values of companies  in related business  and other factors
deemed relevant.
 
                                 LEGAL MATTERS
 
     Certain legal matters in connection with  the Offering will be passed  upon
for  the Company  by Latham  & Watkins. Roger  Kimmel is  a partner  of Latham &
Watkins, and his spouse, Inez Kimmel, and two trusts that have been  established
for  the benefit of Mr.  and Mrs. Kimmel's children  own shares of the Company's
Common Stock. See 'Principal Stockholders.' In addition, certain other  partners
of  Latham & Watkins will, in the aggregate, own less than 1.0% of the Company's
Common Stock following the  Offering. Certain legal  matters in connection  with
the Offering will be passed upon for the Underwriters by Kramer, Levin, Naftalis
& Frankel, New York, New York.
 
                                    EXPERTS
 
     The balance sheets of Algos Pharmaceutical Corporation (a development stage
enterprise)  as of December 31, 1995 and  1994 and the statements of operations,
stockholders' equity and cash flows  for each of the  three years in the  period
ended  December 31, 1995, included in this Prospectus, have been included herein
in reliance on the report of Coopers & Lybrand L.L.P., independent  accountants,
given on the authority of that firm as experts in accounting and auditing.
 
     The  statements  in  this Prospectus  set  forth under  the  captions 'Risk
Factors  --   Uncertain  Ability   to   Protect  Proprietary   Technology'   and
'Business  --  Patents,  Trade  Secrets and  Licenses'  have  been  reviewed and
approved by Dilworth  & Barrese, patent  counsel to the  Company, as experts  on
such matters, and are included herein in reliance upon such review and approval.
 
                             ADDITIONAL INFORMATION
 
     The  Company has  filed with  the Securities  and Exchange  Commission (the
'Commission'), Washington,  D.C. 20549,  a Registration  Statement on  Form  S-1
under  the Securities  Act with  respect to the  shares of  Common Stock offered
hereby. This Prospectus does  not contain all the  information set forth in  the
Registration  Statement  and the  exhibits  and schedules  thereto.  For further
information with respect  to the Company  and the Common  Stock offered  hereby,
reference  is  made  to  the  Registration Statement  and  to  the  exhibits and
schedules filed therewith.  Statements contained  in this Prospectus  as to  the
contents  of  any contract  or other  document referred  to are  not necessarily
complete, and in each instance reference is made to the copy of such contract or
other document filed  as an  exhibit to  the Registration  Statement, each  such
statement  being qualified  in all  respects by  such reference.  A copy  of the
Restoration Statement may  be inspected  without charge  at the  offices of  the
Commission at 450 Fifth Street, N.W. Washington D.C. 20549, and copies of all or
any part of the Registration Statement may be obtained from the public Reference
Section  of the Commission, Washington, D.C. 20549  upon the payment of the fees
prescribed by the Commission.
 
                                       48

<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                                              PAGE
                                                                                                              ----
 
<S>                                                                                                           <C>
Report of Independent Accountants..........................................................................    F-2
Balance Sheets as of December 31, 1994 and 1995 and March 31, 1996 (unaudited).............................    F-3
Statements of Operations for the years ended December 31, 1993, 1994 and 1995 and three months ended March
  31, 1995 and 1996 (unaudited) and cumulative from inception to March 31, 1996 (unaudited)................    F-4
Statements of Cash Flows for the years ended December 31, 1993, 1994 and 1995 and three months ended March
  31, 1995 and 1996 (unaudited) and cumulative from inception to March 31, 1996 (unaudited)................    F-5
Statements of Changes in Stockholders' Equity from date of inception (January 1, 1992) to December 31, 1995
  and the three months ended March 31, 1996 (unaudited)....................................................    F-6
Notes to Financial Statements..............................................................................    F-7
</TABLE>
 
                                      F-1



<PAGE>
 
<PAGE>
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
The Board of Directors and Stockholders
ALGOS PHARMACEUTICAL CORPORATION:
 
     We  have audited  the accompanying  balance sheets  of Algos Pharmaceutical
Corporation (a development stage enterprise) as  of December 31, 1995 and  1994,
and  the related statements  of operations, stockholders'  equity and cash flows
for each  of the  three  years in  the period  ended  December 31,  1995.  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  Algos  Pharmaceutical
Corporation  as of December 31, 1995 and  1994 and the results of its operations
and its cash flows for each of the three years in the period ended December  31,
1995, in conformity with generally accepted accounting principles.
 
                                          COOPERS & LYBRAND L.L.P.
 
Princeton, New Jersey
February 7, 1996,
except as to the fourth
paragraph of
Note 11, for
which the date is
May 20, 1996
 
                                      F-2
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                               DECEMBER 31,
                                                                        --------------------------     MARCH 31,
                                                                           1994           1995           1996
                                                                        -----------    -----------    -----------
                                                                                                      (UNAUDITED)
 
<S>                                                                     <C>            <C>            <C>
                               ASSETS
Current assets:
     Cash and cash equivalents (Notes 2 and 3).......................   $ 5,633,971    $ 3,707,100    $ 3,095,419
     Prepaid expenses................................................        16,533         11,057          6,512
                                                                        -----------    -----------    -----------
          Total current assets.......................................     5,650,504      3,718,157      3,101,931
Property and equipment, net (Notes 2 and 4)..........................       113,986        100,704         93,037
Other assets.........................................................           916          1,591          1,591
                                                                        -----------    -----------    -----------
          Total assets...............................................   $ 5,765,406    $ 3,820,452    $ 3,196,559
                                                                        -----------    -----------    -----------
                                                                        -----------    -----------    -----------
                LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
     Accounts payable................................................   $    55,926    $   158,297    $   136,875
     Other current liabilities (Note 5)..............................        91,175        141,335         89,230
                                                                        -----------    -----------    -----------
          Total current liabilities..................................       147,101        299,632        226,105
                                                                        -----------    -----------    -----------
Commitments (Note 7)
Stockholders' equity:
     Convertible preferred stock, $.01 par value: 10,000,000 shares
       authorized; 872,500 shares designated Series A; 702,500,
       702,500, and 702,500, respectively, issued and outstanding,
       $10,537,500 aggregate liquidation preference..................         7,025          7,025          7,025
     Common stock, $.01 par value; 50,000,000 shares authorized;
       5,810,415, 6,010,030, and 6,138,680, respectively, issued and
       outstanding...................................................        58,104         60,100         61,387
     Additional paid-in-capital......................................     7,318,936      7,341,890      7,595,361
     Unearned compensation expense...................................                                    (237,159)
     Deficit accumulated during the development stage................    (1,765,760)    (3,888,195)    (4,456,160)
                                                                        -----------    -----------    -----------
          Total stockholders' equity.................................     5,618,305      3,520,820      2,970,454
                                                                        -----------    -----------    -----------
          Total liabilities and stockholders' equity.................   $ 5,765,406    $ 3,820,452    $ 3,196,559
                                                                        -----------    -----------    -----------
                                                                        -----------    -----------    -----------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-3
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
                            STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>

                                        FOR THE YEARS ENDED             FOR THE THREE MONTHS      CUMULATIVE FROM
                                           DECEMBER 31,                    ENDED MARCH 31,         INCEPTION TO
                               -------------------------------------   -------------------------      MARCH 31,
                                 1993         1994          1995          1995          1996            1996
                               ---------   -----------   -----------   -----------   -----------   ---------------
                                                                       (UNAUDITED)   (UNAUDITED)     (UNAUDITED)
 
<S>                            <C>         <C>           <C>           <C>           <C>           <C>
Revenues (Note 8)............  $ 214,584   $             $              $            $               $   311,000
                               ---------   -----------   -----------   -----------   -----------   ---------------
Operating expenses:
     Research and development
       (Note 2)..............     40,000       653,714     1,614,943      380,585        399,712       2,833,369
     General and
       administrative
       expenses..............    435,657       623,219       760,040      235,155        210,840       2,399,102
                               ---------   -----------   -----------   -----------   -----------   ---------------
          Total operating
            expenses.........    475,657     1,276,933     2,374,983      615,740        610,552       5,232,471
                               ---------   -----------   -----------   -----------   -----------   ---------------
Loss from operations.........   (261,073)   (1,276,933)   (2,374,983)    (615,740)      (610,552)     (4,921,471)
Interest income..............      4,433       153,247       252,548       70,606         42,587         465,311
                               ---------   -----------   -----------   -----------   -----------   ---------------
Net loss.....................  $(256,640)  $(1,123,686)  $(2,122,435)   $(545,134)   $  (567,965)    $(4,456,160)
                               ---------   -----------   -----------   -----------   -----------   ---------------
                               ---------   -----------   -----------   -----------   -----------   ---------------
Pro forma (unaudited) (Note
  2):
     Net loss per common
       share.................                                 $(0.18)                     $(0.05)
                                                              ------                      ------ 
                                                              ------                      ------ 
     Weighted average number
       of common shares
       outstanding...........                             12,099,217                  12,210,769
                                                          ----------                  ---------- 
                                                          ----------                  ---------- 
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-4

<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
                            STATEMENTS OF CASH FLOWS
<TABLE>
<CAPTION>
                                                        FOR THE YEARS ENDED DECEMBER 31,          FOR THE THREE MONTHS
                                                     ---------------------------------------        ENDED MARCH 31,
                                                       1993          1994           1995        ------------------------
                                                     ---------    -----------    -----------       1995          1996
                                                                                                ----------    ----------
                                                                                                (UNAUDITED)   (UNAUDITED)
 
<S>                                                  <C>          <C>            <C>            <C>           <C>
Cash flows from operating activities:
     Net loss.....................................   $(256,640)   $(1,123,686)   $(2,122,435)   $ (545,134)   $ (567,965)
     Adjustments to reconcile net loss to net cash
       used in operating activities:
          Depreciation and amortization...........       8,065         18,115         35,782         8,422        11,023
          Amortization of unearned compensation...                                                                 2,099
          Common stock issued for technology......      25,000
          Preferred stock issued for services
            rendered..............................                     25,000
          Changes in assets and liabilities:
               Prepaid expenses...................       3,737        (14,096)         5,476         8,369         4,545
               Other assets.......................       1,237            600           (675)
               Accounts payable...................      (7,038)        25,549        102,371        47,544       (21,422)
               Other current liabilities..........     (63,638)        76,590         50,160       (29,103)      (52,105)
                                                     ---------    -----------    -----------    ----------    ----------
               Net cash used in operating
                 activities.......................    (289,277)      (991,928)    (1,929,321)     (509,902)     (623,825)
                                                     ---------    -----------    -----------    ----------    ----------
Cash flows from investing activities:
     Purchases of property and equipment..........        (425)      (106,757)       (22,500)       (8,142)       (3,356)
                                                     ---------    -----------    -----------    ----------    ----------
     Net cash used in investing activities........        (425)      (106,757)       (22,500)       (8,142)       (3,356)
                                                     ---------    -----------    -----------    ----------    ----------
Cash flows from financing activities:
     Proceeds from issuance of preferred stock,
       net of offering costs......................                  6,609,015
     Proceeds from issuance of common stock and
       capital contributions......................     125,000             50         24,950        24,900        15,500
                                                     ---------    -----------    -----------    ----------    ----------
     Net cash provided by financing activities....     125,000      6,609,065         24,950        24,900        15,500
                                                     ---------    -----------    -----------    ----------    ----------
Net increase (decrease) in cash and cash
  equivalents.....................................    (164,702)     5,510,380     (1,926,871)     (493,144)     (611,681)
Cash and cash equivalents, beginning of period....     288,293        123,591      5,633,971     5,633,971     3,707,100
                                                     ---------    -----------    -----------    ----------    ----------
Cash and cash equivalents, end of period..........   $ 123,591    $ 5,633,971    $ 3,707,100    $5,140,827    $3,095,419
                                                     ---------    -----------    -----------    ----------    ----------
                                                     ---------    -----------    -----------    ----------    ----------
 
<CAPTION>
                                                    CUMULATIVE
                                                     INCEPTION
                                                     TO MARCH
                                                     31, 1996
                                                    -----------
                                                    (UNAUDITED)
<S>                                                  <C>
Cash flows from operating activities:
     Net loss.....................................  $(4,456,160)
     Adjustments to reconcile net loss to net cash
       used in operating activities:
          Depreciation and amortization...........       78,282
          Amortization of unearned compensation...        2,099
          Common stock issued for technology......      125,000
          Preferred stock issued for services
            rendered..............................       25,000
          Changes in assets and liabilities:
               Prepaid expenses...................       (6,512)
               Other assets.......................       (1,591)
               Accounts payable...................      136,875
               Other current liabilities..........       89,230
                                                    -----------
               Net cash used in operating
                 activities.......................   (4,007,777)
                                                    -----------
Cash flows from investing activities:
     Purchases of property and equipment..........     (171,319)
                                                    -----------
     Net cash used in investing activities........     (171,319)
                                                    -----------
Cash flows from financing activities:
     Proceeds from issuance of preferred stock,
       net of offering costs......................    6,609,015
     Proceeds from issuance of common stock and
       capital contributions......................      665,500
                                                    -----------
     Net cash provided by financing activities....    7,274,515
                                                    -----------
Net increase (decrease) in cash and cash
  equivalents.....................................    3,095,419
Cash and cash equivalents, beginning of period....
                                                    -----------
Cash and cash equivalents, end of period..........  $ 3,095,419
                                                    -----------
                                                    -----------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-5
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
                 STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
<TABLE>
<CAPTION>
                                                          CONVERTIBLE
                                                        PREFERRED STOCK       COMMON STOCK       ADDITIONAL     UNEARNED
                                                       -----------------   -------------------    PAID-IN     COMPENSATION
                                                        SHARES    AMOUNT    SHARES     AMOUNT     CAPITAL       EXPENSE
                                                       --------   ------   ---------   -------   ----------   ------------
 
<S>                                                    <C>        <C>      <C>         <C>       <C>          <C>
Balance, January 1, 1992 (Inception)
Issuance of common stock, January 1992, $.10 per
  share..............................................                      4,841,664   $48,417   $  451,583
Issuance of common stock for technology, January
  1992, $.10 per share...............................                        968,336     9,683       90,317
Net loss.............................................
                                                       --------   ------   ---------   -------   ----------   ------------
Balance, December 31, 1992...........................                      5,810,000    58,100      541,900
Capital contributions, including $25,000 of
  technology.........................................                                               150,000
Net loss.............................................
                                                       --------   ------   ---------   -------   ----------   ------------
Balance, December 31, 1993...........................                      5,810,000    58,100      691,900
Issuance of preferred stock, May through August 1994,
  $10.00 per share, net of offering costs............   700,000   $7,000                          6,602,015
Issuance of preferred stock for services rendered,
  May 1994 $10.00 per share..........................     2,500       25                             24,975
Exercise of stock options............................                            415         4           46
Net loss.............................................
                                                       --------   ------   ---------   -------   ----------   ------------
Balance, December 31, 1994...........................   702,500    7,025   5,810,415    58,104    7,318,936
Exercise of stock options............................                        199,615     1,996       22,954
Net loss.............................................
                                                       --------   ------   ---------   -------   ----------   ------------
Balance, December 31, 1995...........................   702,500    7,025   6,010,030    60,100    7,341,890
Exercise of stock options (unaudited)................                        128,650     1,287       14,213
Unearned compensation expense (unaudited)............                                               239,258    $ (239,258)
Amortization of unearned compensation expense
  (unaudited)........................................                                                               2,099
Net loss (unaudited).................................
                                                       --------   ------   ---------   -------   ----------   ------------
Balance, March 31, 1996 (unaudited)..................   702,500   $7,025   6,138,680   $61,387   $7,595,361    $ (237,159)
                                                       --------   ------   ---------   -------   ----------   ------------
                                                       --------   ------   ---------   -------   ----------   ------------
 
<CAPTION>
                                                         DEFICIT
                                                       ACCUMULATED
                                                        DURING THE        TOTAL
                                                       DEVELOPMENT    STOCKHOLDERS'
                                                          STAGE          EQUITY
                                                       ------------   -------------
<S>                                                    <C>            <C>
Balance, January 1, 1992 (Inception)
Issuance of common stock, January 1992, $.10 per
  share..............................................                  $   500,000
Issuance of common stock for technology, January
  1992, $.10 per share...............................                      100,000
Net loss.............................................  $  (385,434)       (385,434)
                                                       ------------   -------------
Balance, December 31, 1992...........................     (385,434)        214,566
Capital contributions, including $25,000 of
  technology.........................................                      150,000
Net loss.............................................     (256,640)       (256,640)
                                                       ------------   -------------
Balance, December 31, 1993...........................     (642,074)        107,926
Issuance of preferred stock, May through August 1994,
  $10.00 per share, net of offering costs............                    6,609,015
Issuance of preferred stock for services rendered,
  May 1994 $10.00 per share..........................                       25,000
Exercise of stock options............................                           50
Net loss.............................................   (1,123,686)     (1,123,686)
                                                       ------------   -------------
Balance, December 31, 1994...........................   (1,765,760)      5,618,305
Exercise of stock options............................                       24,950
Net loss.............................................   (2,122,435)     (2,122,435)
                                                       ------------   -------------
Balance, December 31, 1995...........................   (3,888,195)      3,520,820
Exercise of stock options (unaudited)................                       15,500
Unearned compensation expense (unaudited)............
Amortization of unearned compensation expense
  (unaudited)........................................                        2,099
Net loss (unaudited).................................     (567,965)       (567,965)
                                                       ------------   -------------
Balance, March 31, 1996 (unaudited)..................  $(4,456,160)    $ 2,970,454
                                                       ------------   -------------
                                                       ------------   -------------
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 
                                      F-6

<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
  (INFORMATION RELATING TO THE THREE MONTHS ENDED MARCH 31, 1995 AND MARCH 31,
                                      1996
            AND CUMULATIVE FROM THE DATE OF INCEPTION IS UNAUDITED)
 
                         NOTES TO FINANCIAL STATEMENTS
 
1. ORGANIZATION
 
     Algos  Pharmaceutical Corporation (the 'Company'),  is engaged primarily in
the development of proprietary pain management pharmaceuticals.
 
     Since its formation in January 1992, the Company has devoted a  substantial
portion  of  its efforts  to developing  products, licensing  technology, filing
regulatory applications  and  raising  capital and  has  earned  no  significant
revenue from its planned principal operations.
 
     The  Company is subject to a number of risks common to companies in similar
stages of development including,  but not limited to,  the lack of assurance  of
successful  product development,  the absence  of manufacturing  facilities; the
need  to  raise  substantial  additional   funds;  and  risk  of   technological
obsolescence.
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
USE OF 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  dates of the  financial
statements  and  the  reported  amounts  of  revenues  and  expenses  during the
reporting periods. Actual results could differ from those estimates.
 
DEVELOPMENT STAGE ENTERPRISE
 
     The accompanying  statements  have been  prepared  in accordance  with  the
provisions   of  Statement  of  Financial  Accounting  Standard  (SFAS)  No.  7,
'Accounting and Reporting by Development Stage Enterprises.'
 
CASH AND CASH EQUIVALENTS
 
     The Company considers securities with  maturities of three months or  less,
when purchased, to be cash equivalents.
 
PROPERTY AND EQUIPMENT, NET
 
     Property  and equipment are recorded at cost less accumulated depreciation.
Depreciation is provided on the  straight-line method over the estimated  useful
lives  of the assets which range from three  to seven years. Gains and losses on
depreciable assets retired or sold are recognized in the statement of operations
in the year of  disposal. Repairs and maintenance  expenditures are expensed  as
incurred.
 
RESEARCH AND DEVELOPMENT COSTS
 
     Expenditures for research and development are expensed as incurred.
 
INCOME TAXES
 
     The Company accounts for income taxes under the provisions of SFAS No. 109,
'Accounting for Income Taxes.' SFAS No. 109 requires recognition of deferred tax
assets and liabilities for the expected
 
                                      F-7
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
  (INFORMATION RELATING TO THE THREE MONTHS ENDED MARCH 31, 1995 AND MARCH 31,
                                      1996
            AND CUMULATIVE FROM THE DATE OF INCEPTION IS UNAUDITED)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
future tax consequences of temporary differences between the financial statement
and  tax bases of assets  and liabilities using enacted  tax rates in effect for
the years in which the differences are expected to reverse.
 
STOCK BASED COMPENSATION
 
     In October 1995, the Financial  Accounting Standards Board issued SFAS  No.
123,  'Accounting for Stock Based Compensation.' Beginning in 1996, SFAS No. 123
requires expanded  disclosures  of stock-based  compensation  arrangements  with
employees  and encourages,  but does  not require,  the recognition  of employee
compensation expense related to  stock compensation based on  the fair value  of
the  equity  instrument granted.  Companies  that do  not  adopt the  fair value
recognition provisions of SFAS No. 123  and continue to follow the existing  APB
Opinion  25 rules  to recognize  and measure  compensation, will  be required to
disclose the pro forma amounts of net  income and earnings per share that  would
have  been reported had the company elected to follow the fair value recognition
of SFAS No. 123. The Company has elected to adopt the disclosure requirements of
this pronouncement.
 
EARNINGS PER SHARE
 
     Pro Forma  net loss  per common  share is  based on  the net  loss and  the
weighted  average number of common shares  after giving effect to the conversion
of preferred stock as  of January 1, 1995.  Pursuant to Securities and  Exchange
Commission Staff Accounting Bulletin No. 83, all common shares and stock options
and warrants granted by the Company during the twelve months prior to the filing
date  of the  Registration Statement  have been  included in  the calculation of
weighted average common shares  and common share  equivalents outstanding as  if
they  were outstanding for all periods  presented. Outstanding stock options and
warrants granted prior to this twelve-month period have not been included in the
calculation of historical net  loss per common share  because inclusion of  such
shares would be antidilutive.
 
     Historical net loss per common share is as follows:
 
<TABLE>
<CAPTION>
                                                                                            FOR THE THREE MONTHS
                                                                                                   ENDED
                                                     FOR THE YEARS ENDED DECEMBER 31,            MARCH 31,
                                                    -----------------------------------    ----------------------
                                                      1993         1994         1995         1995         1996
                                                    ---------    ---------    ---------    ---------    ---------
 
<S>                                                 <C>          <C>          <C>          <C>          <C>
Net loss per common share........................    $(0.04)      $(0.19)      $(0.35)      $(0.09)      $(0.09)
                                                    ---------    ---------    ---------    ---------    ---------
                                                    ---------    ---------    ---------    ---------    ---------
Weighted average common shares and common share
  equivalents outstanding........................   5,810,000    5,810,050    6,002,635    5,982,922    6,121,333
                                                    ---------    ---------    ---------    ---------    ---------
                                                    ---------    ---------    ---------    ---------    ---------
</TABLE>
 
     Historical  net  loss per  common share  is based  on the  weighted average
number of common shares outstanding during the periods presented.
 
INTERIM FINANCIAL INFORMATION
 
     The financial information presented as of March 31, 1996, and for the three
months ended March 31, 1995 and 1996 and the cumulative amounts from the date of
inception  is  unaudited  but,  in  the  opinion  of  management,  reflects  all
adjustments (which consist of normal accruals) necessary for a fair presentation
of such financial statements.
 
                                      F-8
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
  (INFORMATION RELATING TO THE THREE MONTHS ENDED MARCH 31, 1995 AND MARCH 31,
                                      1996
            AND CUMULATIVE FROM THE DATE OF INCEPTION IS UNAUDITED)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
3. CONCENTRATION OF CREDIT RISK
 
     Cash  and cash  equivalents consist primarily  of shares of  a money market
fund which invests primarily in securities of the United States government.
 
4. PROPERTY AND EQUIPMENT, NET
 
     Property and equipment consist of the following:
 
<TABLE>
<CAPTION>
                                                                          DECEMBER 31,
                                                                      --------------------    MARCH 31,
                                                                        1994        1995        1996
                                                                      --------    --------    ---------
 
<S>                                                                   <C>         <C>         <C>
Office furniture...................................................   $ 58,354    $ 61,119    $  61,119
Computer equipment.................................................     56,370      73,453       76,809
Office equipment...................................................     24,617      26,447       26,447
Leasehold improvements.............................................      6,121       6,944        6,944
                                                                      --------    --------    ---------
                                                                       145,462     167,963      171,319
Less accumulated depreciation......................................     31,476      67,259       78,282
                                                                      --------    --------    ---------
                                                                      $113,986    $100,704    $  93,037
                                                                      --------    --------    ---------
                                                                      --------    --------    ---------
</TABLE>
 
5. OTHER CURRENT LIABILITIES
 
     Other current liabilities consist of the following:
 
<TABLE>
<CAPTION>
                                                                           DECEMBER 31,
                                                                        -------------------    MARCH 31,
                                                                         1994        1995        1996
                                                                        -------    --------    ---------
<S>                                                                     <C>        <C>         <C>
Accrued compensation.................................................   $79,000    $118,100     $38,100
Accrued research expenses............................................                23,235      51,130
Advances payable.....................................................    12,175
                                                                        -------    --------    ---------
                                                                        $91,175    $141,335     $89,230
                                                                        -------    --------    ---------
                                                                        -------    --------    ---------
</TABLE>
 
6. INCOME TAXES
 
     Prior to March  1, 1994,  the Company  had elected to  be treated  as an  S
Corporation  for federal income tax reporting purposes. Under this election, the
Company's stockholders  were responsible  for  reporting the  Company's  federal
taxable  loss on their personal tax returns.  In connection with the issuance of
Series A Preferred Stock, the Company's S status terminated and the  corporation
converted  to C Corporation status.  The C Corporation assumed  the tax bases of
the assets and  liabilities of  the S Corporation  as of  the termination  date.
Accordingly,  the Company  records deferred taxes  for the  effect of cumulative
temporary differences  in  accordance  with  the provisions  of  SFAS  No.  109,
'Accounting  for Income  Taxes' for federal  tax purposes as  of the termination
date. For state tax purposes,  the Company has been  treated as a C  Corporation
since inception.
 
     At  December  31,  1995,  the  Company  had  available  net  operating loss
carryforwards and  research  and  development credits  for  federal  income  tax
purposes  of approximately $2,997,000 and  $70,000 respectively, which expire in
the years 2009  through 2010. Due  to the uncertainty  of their realization,  no
income  tax benefits have been  recorded by the Company  for these net operating
loss or credit carryforwards as  valuation allowances have been established  for
any  such benefits. The use of these net operating loss and credit carryforwards
may be subject  to limitations under  section 382 of  the Internal Revenue  Code
pertaining to changes in stock ownership.
 
                                      F-9
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
  (INFORMATION RELATING TO THE THREE MONTHS ENDED MARCH 31, 1995 AND MARCH 31,
                                      1996
            AND CUMULATIVE FROM THE DATE OF INCEPTION IS UNAUDITED)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
     The  increase in the valuation allowance  amounted to $406,100 and $906,300
in 1994 and 1995, respectively.
 
     Deferred tax assets and  (liabilities) for federal  and state income  taxes
consist of the following:
 
<TABLE>
<CAPTION>
                                                                                     DECEMBER 31,
                                                                               ------------------------
                                                                                 1994          1995
                                                                               ---------    -----------
<S>                                                                            <C>          <C>
Net operating loss carryforwards............................................   $ 382,000    $ 1,236,800
Research and development tax credits........................................      20,000         70,000
Depreciation and amortization...............................................       2,500          2,400
Accrued liabilities and other...............................................       1,600          3,200
                                                                               ---------    -----------
     Total deferred tax assets..............................................     406,100      1,312,400
Valuation allowance.........................................................    (406,100)    (1,312,400)
                                                                               ---------    -----------
     Net deferred tax assets................................................   $       0    $         0
                                                                               ---------    -----------
                                                                               ---------    -----------
</TABLE>
 
     The  Company has established a valuation allowance for the potential income
tax benefit of losses incurred in the three months ended March 31, 1996.
 
7. COMMITMENTS AND CONTINGENT LIABILITIES
 
COLLABORATIVE RESEARCH AGREEMENTS
 
     In 1994, the  Company entered into  collaborative research agreements  with
three  universities. Under the terms of  the agreements, the universities agreed
to provide research exclusively to the  Company in the field of pain  management
in  exchange for funding of the research by the Company. The Company was granted
rights to enter into exclusive, worldwide  licenses to make, have made, use  and
sell  products under any patent application and patent rights resulting from the
research agreement  and  is required  to  pay  royalties on  sales  of  products
incorporating licensed technology.
 
     The Company expensed $10,000, $182,000 and $118,000 in 1993, 1994 and 1995,
respectively,  and $510,000 cumulatively from the date of inception, under these
agreements. Quarterly expenses are  mutually agreed to by  the Company and  each
university.
 
     In  addition, the Company has entered  into various research and consulting
agreements which are generally one year or less in duration.
 
LICENSING AGREEMENTS
 
     The Company has  a license  agreement with  a university  for certain  pain
management technology which requires the Company to pay royalties of 4% of sales
of  licensed products and 50% of  certain payments received from sublicensees. A
second license agreement requires annual maintenance fees of $10,000 in addition
to royalties based on sales.
 
EMPLOYMENT AGREEMENTS
 
     The Company has employment agreements  with certain officers and  employees
which  provide them with continued compensation for periods of six months to two
years in the event of  their termination, without cause,  by the Company. As  of
December  31, 1995,  the aggregate  amount of  the Company's  minimum obligation
under these agreements is $751,000.
 
                                      F-10
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
  (INFORMATION RELATING TO THE THREE MONTHS ENDED MARCH 31, 1995 AND MARCH 31,
                                      1996
            AND CUMULATIVE FROM THE DATE OF INCEPTION IS UNAUDITED)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
LEASES
 
     In April 1992, the Company entered into a five year lease agreement for its
office facilities with minimum lease payments of approximately $1,900 per month.
This lease may be canceled by the  Company upon four and one-half months  notice
and  payment  of  not more  than  $3,500.  The Company  is  responsible  for all
operating expenses  associated  with  the facility.  Rent  expense  amounted  to
$11,000,  $12,608 and $21,841 for  the years ended December  31, 1993, 1994, and
1995, respectively, $5,620 in the three-months ended March 31, 1996, and $59,319
cumulatively from the date of inception.
 
8. REVENUES
 
     Prior to 1994 the Company had an agreement to provide consulting  services.
Revenues  recognized under this agreement amounted to $214,584 in the year ended
December 31, 1993 which represented all  of the Company's revenues. The  Company
expensed  $104,000 in  1993 which was  paid to  an executive of  the Company for
services provided relating to this  agreement. Revenues and expenses  recognized
under  this agreement, since inception were $311,000 and $214,500, respectively.
This agreement was not related to pain management technology and was assigned to
a new corporation in January 1994.  The Company will not receive any  additional
revenue related to this contract.
 
9. STOCKHOLDERS' EQUITY
 
     The  Company is authorized to issue  shares of preferred stock with rights,
preferences and limitations determined by the Board of Directors of the Company,
872,500 of which have been designated Series A.
 
     Shares of  Series A  Preferred Stock  have preference  to Common  Stock  in
liquidation   and  are  convertible  into  shares   of  Common  Stock  and  will
automatically convert upon the consummation  of an initial public offering.  The
Series  A Preferred  stockholders are entitled  to receive  dividends payable on
Common Stock based upon the number of shares of Common Stock into which a  share
of  Series A  Preferred Stock  is then  convertible. In  addition, the  Series A
Preferred stockholders are entitled to  vote as a class  to elect one member  of
the Board of Directors of the Company.
 
     The  Company maintains stock options plans  under which options to purchase
shares of common stock have been  granted to directors and employees which  vest
over periods of up to four years.
 
                                      F-11
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
  (INFORMATION RELATING TO THE THREE MONTHS ENDED MARCH 31, 1995 AND MARCH 31,
                                      1996
            AND CUMULATIVE FROM THE DATE OF INCEPTION IS UNAUDITED)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
     Information with respect to options under the plans is as follows:
 
<TABLE>
<CAPTION>
                                                                                      OPTIONS OUTSTANDING
                                                                                    ------------------------
                                                                       AVAILABLE                   PRICE
                                                                       FOR GRANT     SHARES      PER SHARE
                                                                       ---------    --------    ------------
 
<S>                                                                    <C>          <C>         <C>
     Balance, December 31, 1993.....................................
 
     Authorized.....................................................    834,150
     Granted........................................................   (772,730 )    772,730    $ .12 - .13
     Exercised......................................................                    (415)       .12
                                                                       ---------    --------
     Balance, December 31, 1994.....................................     61,420      772,315      .12 - .13
 
     Authorized.....................................................     41,500
     Granted........................................................    (24,900 )     24,900        .12
     Exercised......................................................                (199,615)     .12 - .13
                                                                       ---------    --------
     Balance, December 31, 1995.....................................     78,020      597,600      .12 - .13
 
     Granted........................................................    (52,290 )     52,290        .12
     Exercised......................................................                (128,650)       .12
                                                                       ---------    --------
     Balance, March 31, 1996........................................     25,730      521,240      .12 - .13
                                                                       ---------    --------
                                                                       ---------    --------
</TABLE>
 
     As of December 31, 1995, 217,460 options were exercisable at prices ranging
from  $0.12 to $0.13 per share. In connection with certain option grants made in
March 1996, the Company has recorded unearned compensation expense amounting  to
$239,258,  which will be amortized over the vesting period of approximately four
years.
 
     In connection with the  sale of Series A  Preferred Stock, certain  selling
agents  received warrants to purchase an aggregate  of 40,750 shares of Series A
Preferred Stock at an  exercise price of  $10.00 per share  which expire on  the
earlier  of 2004 or five years after an  initial public offering of stock by the
Company.
 
10. RELATED PARTY TRANSACTION
 
     A director of the Company has been associated with law firms that  rendered
various  legal services to  the Company. The  Company paid approximately $3,000,
$95,000 and $16,000  in 1993, 1994  and 1995, respectively,  and $3,000 for  the
three  months ended March 31,  1996, and $146,000 cumulatively  from the date of
inception, for these services.
 
11. SUBSEQUENT EVENTS (UNAUDITED)
 
     In April 1996, the Company established  the 1996 Stock Option Plan and  the
1996 Non-Employee Directors Stock Plan under which options to purchase shares of
Common  Stock may be  granted to key employees,  consultants and directors under
terms established by the Company's Board of Directors. The plans provide for the
grant of options covering a total of 498,000 shares of Common Stock.
 
     In April 1996, the  Company granted options to  purchase 190,900 shares  of
Common  Stock at  exercise prices of  $0.12 to  $0.13 per share  and will record
unearned compensation expense amounting to $871,882. Options to purchase  24,900
shares are exercisable immediately, the remainder vest over a four year period.
 
     On  May 20, the Board of Directors  authorized the filing of a registration
statement with the  Securities and Exchange  Commission for the  sale of  Common
Stock. If the offering pursuant to the
 
                                      F-12
 
<PAGE>
 
<PAGE>
                        ALGOS PHARMACEUTICAL CORPORATION
                        (A DEVELOPMENT STAGE ENTERPRISE)
  (INFORMATION RELATING TO THE THREE MONTHS ENDED MARCH 31, 1995 AND MARCH 31,
                                      1996
            AND CUMULATIVE FROM THE DATE OF INCEPTION IS UNAUDITED)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
registration statement is consummated under the terms presently anticipated, all
shares  of the Preferred  Stock will convert  to Common Stock  and the Preferred
Stock warrants will convert  to Common Stock warrants.  The Preferred Stock  and
Preferred  Stock warrants will convert at a  rate of 8.30 common shares for each
preferred share or underlying warrant.
 
     On May 20,  the Board  of Directors authorized  a 8.30-for-1  split of  all
outstanding  shares of Common Stock and authorized an increase in the authorized
number of common shares to 50,000,000. Such split and increase in the authorized
number of common  shares shall  be consummated upon  the effective  date of  the
registration  statement. In  addition, upon  the closing  of the  initial public
offering, the  total number  of shares  of preferred  stock authorized  will  be
10,000,000 par value $.01. All references to common stock, options and per share
data have been restated to give effect to this split.
 
                                      F-13

<PAGE>
 
<PAGE>
____________________________________         ___________________________________
 
NO  DEALER, SALES REPRESENTATIVE OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE
ANY INFORMATION OR MAKE  ANY REPRESENTATIONS IN  CONNECTION WITH THIS  OFFERING,
OTHER  THAN THOSE  CONTAINED IN  THIS PROSPECTUS,  AND, IF  GIVEN OR  MADE, SUCH
INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE  COMPANY  OR  BY  ANY  OF THE  UNDERWRITERS.  THIS  PROSPECTUS  DOES  NOT
CONSTITUTE  AN OFFER TO SELL  OR SOLICITATION OF AN  OFFER TO BUY ANY SECURITIES
OTHER THAN THE SHARES OF COMMON STOCK TO  WHICH IT RELATES OR AN OFFER TO, OR  A
SOLICITATION  OF,  ANY PERSON  IN ANY  JURISDICTION  IN WHICH  SUCH AN  OFFER OR
SOLICITATION WOULD BE UNLAWFUL. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR  ANY
SALE  MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT
THERE HAS BEEN NO CHANGE IN THE  AFFAIRS OF THE COMPANY OR THAT THE  INFORMATION
CONTAINED HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE HEREOF.
 
                            ------------------------
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                          PAGE
                                                                                                                          ----
 
<S>                                                                                                                       <C>
Prospectus Summary.....................................................................................................      3
Risk Factors...........................................................................................................      6
Use of Proceeds........................................................................................................     12
Dividend Policy........................................................................................................     12
Capitalization.........................................................................................................     13
Dilution...............................................................................................................     14
Selected Financial Information.........................................................................................     15
Management's Discussion and Analysis of Financial Condition and Results of Operations..................................     16
Business...............................................................................................................     19
Management and Key Scientific Advisors.................................................................................     32
Principal Stockholders.................................................................................................     39
Certain Relationships and Related Transactions.........................................................................     40
Description of Capital Stock...........................................................................................     41
Shares Eligible for Future Sale........................................................................................     43
Certain United States Federal Tax Considerations for Non-United States Holders.........................................     44
Underwriting...........................................................................................................     47
Legal Matters..........................................................................................................     48
Experts................................................................................................................     48
Additional Information.................................................................................................     48
Index to Financial Statements..........................................................................................    F-1
</TABLE>
 
                            ------------------------
     UNTIL                  ,  1996 (25 DAYS AFTER THE DATE OF THIS PROSPECTUS),
ALL DEALERS EFFECTING TRANSACTIONS IN  THE COMMON STOCK OFFERED HEREBY,  WHETHER
OR  NOT  PARTICIPATING  IN  THIS  DISTRIBUTION, MAY  BE  REQUIRED  TO  DELIVER A
PROSPECTUS. THIS REQUIREMENT  IS IN ADDITION  TO THE OBLIGATIONS  OF DEALERS  TO
DELIVER  A  PROSPECTUS WHEN  ACTING AS  UNDERWRITERS AND  WITH RESPECT  TO THEIR
UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.
 
                                3,500,000 SHARES
 
                                     [LOGO]
 
                                     ALGOS
                                 PHARMACEUTICAL
                                  CORPORATION
 
                                  COMMON STOCK
 
                           --------------------------
                                   PROSPECTUS
                                            , 1996
                           --------------------------
 
                                LEHMAN BROTHERS
                                COWEN & COMPANY
                              ABB AROS SECURITIES
 
____________________________________         ___________________________________


<PAGE>
 
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
     The  following  table  sets  forth  the  costs  and  expenses,  other  than
underwriting discounts and  commissions, payable  by the  Company in  connection
with  the sale of the  Common Stock being registered.  All amounts are estimates
except the registration and filing fees:
 
<TABLE>
<CAPTION>
                                       DESCRIPTION                                             AMOUNT
- ------------------------------------------------------------------------------------------  ------------
 
<S>                                                                                         <C>
Securities and Exchange Commission registration fee.......................................  $  22,207.05
NASD filing fee...........................................................................      6,940.00
Printing and engraving expenses...........................................................       *
Legal fees and expenses...................................................................       *
Accounting fees and expenses..............................................................       *
Blue Sky fees and expenses................................................................       *
Transfer Agent & Registrar fees...........................................................       *
Listing Fees..............................................................................       *
Miscellaneous expenses....................................................................       *
                                                                                            ------------
     Total................................................................................  $
                                                                                            ------------
                                                                                            ------------
</TABLE>
 
- ------------
 
*  To be filed by amendment.
 
ITEM 14. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     Section 145  of  the Delaware  General  Corporation Law  (the  'DGCL')  and
Article  SEVENTH  of  the  Company's Certificate  of  Incorporation  provide for
indemnification of  the  Company's  directors  and  officers  in  a  variety  of
circumstances,  which may include liabilities under  the Securities Act of 1933,
as  amended  (the  'Securities  Act').  Article  SEVENTH  provides  that  unless
otherwise determined by the Board of Directors of the Company, the Company shall
indemnify,  to the full extent permitted by the laws of Delaware as from time to
time in effect, the persons described in Section 145 of DGCL.
 
     The general  effect  of the  provisions  in the  Company's  Certificate  of
Incorporation  and the DGCL is  to provide that the  company shall indemnify its
directors and  officers  against  all  liabilities  and  expenses  actually  and
reasonably incurred in connection with the defense or settlement of any judicial
or  administrative proceedings in  which they have become  involved by reason of
their status as corporate directors or officers, if they acted in good faith and
in the reasonable belief that their conduct was neither unlawful (in the case of
criminal proceedings) nor inconsistent with  the best interests of the  Company.
With  respect to legal proceedings by or in  the right of the Company in which a
director or officer is adjudged liable  for improper performance of his duty  to
the  Company or  another enterprise  for which such  person served  in a similar
capacity at  the request  of the  Company, indemnification  is limited  by  such
provisions to that amount which is permitted by the court.
 
     Reference  is made to the proposed  form of Underwriting Agreement filed as
Exhibit 1.1 which provides for indemnification of the directors and officers  of
the  Company signing the Registration  Statement and certain controlling persons
of the Company against certain liabilities, including certain liabilities  under
the Securities Act, by the Underwriters.
 
ITEM 15. RECENT SALES OF UNREGISTERED SECURITIES
 
     During  the past  three years,  the following  securities were  sold by the
Company without registration under the Securities Act:
 
          Pursuant to Subscription and Stock  Purchase Agreements, dated May  9,
     June  30, July  15, August 12  and August  22, 1994, the  Company issued 70
     Units, each Unit consisting of 10,000  shares of Series A Preferred  Stock,
     $.01   par  value,   of  the   Company  to   management,  certain  existing
 
                                      II-1
 
<PAGE>
 
<PAGE>
     stockholders and  a limited  number  of other  investors for  an  aggregate
     purchase  price  of  $7,000,000  in  a  transaction  that  was  exempt from
     registration pursuant to Regulation D under the Securities Act.
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
          (a) Exhibits:
 
<TABLE>
<CAPTION>
EXHIBIT
  NO.      TITLE
- --------   -------------------------------------------------------------------------------------------------------
 
<C>        <S>
  *1.1     Form of Underwriting Agreement.
 **3.1     Amended and Restated Certificate of Incorporation of Algos Pharmaceutical Corporation.
  *3.2     Form of Amended and Restated By-laws of Algos Pharmaceutical Corporation.
  *4.1     Form of Stock Certificate of Common Stock.
  *5.1     Opinion of Latham & Watkins as to the validity of the Common Stock.
 *10.1.1   Employment Agreement, dated January 28, 1994 between John W. Lyle and U.S. Medical Technologies, Inc.
 *10.1.2   Employment Agreement, dated January 2, 1994 between Algos Pharmaceutical Corporation and Gastone Bello.
 *10.1.3   Employment Agreement, dated January 2, 1994 between Algos Pharmaceutical Corporation and Frank S.
             Caruso.
 *10.2.1   1994 Stock Option Plan.
 *10.2.2   1996 Stock Option Plan.
 *10.2.3   1996 Non-Employee Director Stock Option Plan.
 *10.3.1   Algos Pharmaceutical Corporation Stockholders' Agreement.
 *10.4.1   Lease Agreement between Collingwood Plaza Associates and U.S. Medical Technologies, Inc., dated March
             3, 1992, as amended.
**11       Statement regarding computation of per share earnings.
**21       Subsidiaries of the Registrant.
**23.1     Consent of Coopers & Lybrand L.L.P.
**23.2     Consent of Ditworth & Barrese.
 *23.3     Consent of Latham & Watkins (included in Exhibit 5.1)
 *24       Powers of Attorney, included on page II-4.
**27.      Financial Data Schedule.
</TABLE>
 
- ------------
 
*  To be filed by amendment.
 
** Filed herewith.
 
     (b) Financial Statement Schedules:
 
     None.
 
ITEM 17. UNDERTAKINGS.
 
     The undersigned Registrant hereby undertakes to provide to 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.
 
     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to  directors, officers and controlling persons of  the
Registrant  pursuant to the  foregoing provisions, or  otherwise, the Registrant
has been advised that in the opinion of the Securities and Exchange  Commission,
such  indemnification is against public  policy as expressed in  the Act and is,
therefore, unenforceable. In the event that a claim for indemnification  against
such  liabilities (other than the payment by the Registrant of expenses incurred
or paid by a director,  officer or controlling person  of the Registrant 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 Registrant 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 Act and will be governed by the final adjudication of
such issue.
 
                                      II-2
 
<PAGE>
 
<PAGE>
     The undersigned Registrant hereby undertakes that:
 
          (1) For purposes of determining any liability under the Securities Act
     of  1933, 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 Registrant pursuant to Rule 424(b)(1) or
     (4) or 497(h) under the Securities Act shall be deemed to be a part of this
     Registration Statement as of the time it was declared effective.
 
          (2) For purposes of determining any liability under the Securities Act
     of 1933, each post-effective amendment  that contains a form of  Prospectus
     shall  be  deemed  to  be  a new  registration  statement  relating  to the
     securities offered therein,  and the  offering of such  securities at  that
     time shall be deemed to be the initial bona fide offering thereof.
 
     The  undersigned registrant hereby undertakes to provide to the underwriter
at the  closing specified  in the  underwriting agreement  certificates in  such
denominations  and registered  in such names  as required by  the underwriter to
permit prompt delivery to each purchaser.
 
     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to  directors, officers and controlling persons of  the
registrant  pursuant to the  foregoing provisions, or  otherwise, the registrant
has been advised that in the  opinion of the Securities and Exchange  Commission
such  indemnification is against public  policy as expressed by  the Act and is,
therefore, unenforceable. In the event that a claim for indemnification  against
such  liabilities (other than the payment by the registrant of expenses incurred
or paid by a director,  officer or controlling person  of the registrant 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 registrant 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 Act and will be governed by the final adjudication of
such issue.
 
     The undersigned registrant hereby undertakes that:
 
          (1) For purposes of determining any liability under the Securities Act
     of  1933, 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 registrant pursuant to Rule 424(b)(1) or
     (4) or 497(h) under the Securities Act  shall be deemed to be part of  this
     registration statement as of the time it was declared effective.
 
          (2)  For the purpose of determining any liability under the Securities
     Act of  1933,  each  post-effective  amendment  that  contains  a  form  of
     prospectus  shall be deemed to be  a new registration statement relating to
     the securities offered therein, and the offering of such securities at that
     time shall be deemed to be the initial bona fide offering thereof.
 
                                      II-3

<PAGE>
 
<PAGE>
                                   SIGNATURES
 
     Pursuant  to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Registration  Statement to be signed  on its behalf by  the
undersigned,  thereunto duly authorized, in  the City of New  York, State of New
York, on May 22, 1996.
 
                                          ALGOS PHARMACEUTICAL CORPORATION
 
                                          By:          /s/ JOHN W. LYLE
                                             ...................................
                                                        JOHN W. LYLE
                                               PRESIDENT AND CHIEF EXECUTIVE
                                                         OFFICER
 
                               POWER OF ATTORNEY
 
     Each of  the undersigned  officers and  directors of  Algos  Pharmaceutical
Corporation   hereby  severally  constitutes  and   appoints  John  W.  Lyle  as
attorney-in-fact for the undersigned, in any and all capacities, with full power
of  substitution,  to  sign  any  amendments  to  this  Registration   Statement
(including  post-effective  amendments),  and  to file  the  same  with exhibits
thereto and other  documents in  connection therewith, with  the Securities  and
Exchange  Commission,  granting  unto  said  attorney-in-fact,  full  power  and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises, as fully to all intents and purposes as he
might or  could do  in person,  hereby ratifying  and confirming  all that  said
attorney-in-fact may lawfully do or cause to be done by virtue hereof.
 
     Pursuant   to  the  requirements  of  the  Securities  Act  of  1933,  this
Registration Statement  has  been signed  below  the following  persons  in  the
capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
                   NAME                                        TITLE                              DATE
- ------------------------------------------  --------------------------------------------   -------------------
<C>                                         <S>                                            <C>
             /s/ JOHN W. LYLE               President, Chief Executive Officer and            May 22, 1996
 .........................................    Director
              (JOHN W. LYLE)
 
          /s/ DONALD G. DRAPKIN             Director                                          May 22, 1996
 .........................................
           (DONALD G. DRAPKIN)
 
           /s/ JAMES R. LEDLEY              Assistant Secretary and Director                  May 22, 1996
 .........................................
            (JAMES R. LEDLEY)
 
          /s/ DIETER A. SULSER              Director                                          May 22, 1996
 .........................................
            (DIETER A. SULSER)
</TABLE>
 
                                      II-4

 
                                  STATEMENT OF DIFFERENCES
The trademark symbol shall be expressed as............. 'tm'
The registered trademark symbol shall be expressed as.. 'r'


<PAGE>
 
<PAGE>
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
EXHIBIT
  NO.      TITLE                                                                                             PAGE
- --------   -----------------------------------------------------------------------------------------------   -----
 
<C>        <S>                                                                                               <C>
  *1.1     Form of Underwriting Agreement.................................................................
 **3.1     Amended and Restated Certificate of Incorporation of Algos Pharmaceutical Corporation..........
  *3.2     Form of Amended and Restated By-laws of Algos Pharmaceutical Corporation.......................
  *4.1     Form of Stock Certificate of Common Stock......................................................
  *5.1     Opinion of Latham & Watkins as to the validity of the Common Stock.............................
 *10.1.1   Employment Agreement, dated January 28, 1994 between John W. Lyle and U.S. Medical
             Technologies, Inc............................................................................
 *10.1.2   Employment Agreement, dated January 2, 1994 between Algos Pharmaceutical Corporation and
             Gastone Bello................................................................................
 *10.1.3   Employment Agreement, dated January 2, 1994 between Algos Pharmaceutical Corporation and Frank
             S. Caruso....................................................................................
 *10.2.1   1994 Stock Option Plan.........................................................................
 *10.2.2   1996 Stock Option Plan.........................................................................
 *10.2.3   1996 Non-Employee Director Stock Option Plan...................................................
 *10.3.1   Algos Pharmaceutical Corporation Stockholders' Agreement.......................................
 *10.4.1   Lease Agreement between Collingwood Plaza Associates and U.S. Medical Technologies, Inc., dated
             March 3, 1992, as amended....................................................................
**11       Statement regarding computation of per share earnings..........................................
**21       Subsidiaries of the Registrant.................................................................
**23.1     Consent of Coopers & Lybrand L.L.P.............................................................
**23.2     Consent of Dilworth & Barrese..................................................................
 *23.3     Consent of Latham & Watkins (included in Exhibit 5.1)..........................................
 *24       Powers of Attorney, included on page II-4......................................................
**27       Financial Data Schedule........................................................................
</TABLE>
 
- ------------
 
*  To be filed by amendment.
 
** Filed herewith.

<PAGE>




<PAGE>

                                State of Delaware

                        Office of the Secretary of State

         I, William T. Quillen, Secretary of State of the State of Delaware, do
hereby certify the attached is a true and correct copy of the Certificate of
Incorporation of "U.S. Medical Technologies, Inc.", filed in this office on the
twentieth day of December, A.D. 1991, at 9 o'clock A.M.


                                        /s/ William T. Quillen
                                       -------------------------------------
                                       William T. Quillen, Secretary of State

                                       Authentication:  7111868

                                       Date:            05-06-94



<PAGE>
 
<PAGE>




                          CERTIFICATE OF INCORPORATION

                                       OF

                         U.S. MEDICAL TECHNOLOGIES, INC.


                  The undersigned, in order to form a corporation for the
purposes hereinafter stated, under and pursuant to the provisions of the General
Corporation Law of the State of Delaware, does hereby certify as follows:

                  FIRST: The name of the corporation is U.S. Medical
Technologies, Inc. (the "Corporation").

                  SECOND: The Corporation's registered office is 32 Loockerman
Square, Suite L-100, City of Dover, County of Kent, Delaware 19901. The name of
its registered agent at that address is The Prentice Hall Corporation System,
Inc.

                  THIRD: The purpose of the Corporation is to engage in any
lawful act or activity for which a corporation may be organized under the
General Corporation Law of Delaware ("GCL").

                  FOURTH: The total number of shares of all classes which the
Corporation shall have authority to issue is 3,000 shares, all of which shall be
common stock having a par value of $0.01 per share ("Common Stock").




<PAGE>
 
<PAGE>



                  FIFTH: The name and address of the incorporator are as
follows:

                  Name                                       Address
                  ----                                       -------
                 Angela Mia Colasuonno                       53 Wall Street
                                                             New York, NY  10005


                  SIXTH: The Board of Directors shall have the power without the
assent or vote of the stockholders to make, alter, amend, change, add to or
repeal the By-Laws of the Corporation.

                  SEVENTH: 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 then, 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 GCL or on the application
of trustees in dissolution or of any receiver or receivers appointed for this
Corporation under the provisions of Section 279 of Title 8 of the GCL 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 of the
stockholders or class of stockholders of this Corporation, as the case may be,
agree to any compromise or arrangement and to any


                                        2




<PAGE>
 
<PAGE>



reorganization of this Corporation as consequence of such compromise or
arrangement, the said compromise or arrangement and the said reorganization
shall, if 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.

                  EIGHTH: To the fullest extent permitted by Section 102(b) of
the GCL as it currently exists or as it may hereafter be amended, no director of
the Corporation shall be liable to the corporation or its stockholders for
monetary damages for breach of fiduciary duty as a director.

                  NINTH: If the Corporation proposes at any time to issue
additional shares of Common Stock, the Corporation shall notify each holder of
shares of Common Stock, stating the number of shares proposed to be issued, at
what price, on what terms, and on what issue date. That notice shall be given
not later than forty-five (45) days prior to the proposed issue date. It shall
constitute an offer to sell each stockholder a pro rata portion of the stated
number of shares proposed to be issued, at the price, and on the terms,
specified in the notice. The portion offered to each holder of Common Stock
shall be (as nearly as practicable) equal to the proportion of all shares of
Common Stock held by that stockholder. Any stockholder may accept the
Corporation's offer by giving the Corporation and each


                                        3




<PAGE>
 
<PAGE>



other holder of shares of Common Stock notice (the "Initial Notice") not later
than fifteen (15) days after the Corporation provides the notice of its proposed
issuance of additional shares of Common Stock. Any stockholder not giving notice
within that time limit shall be deemed to have rejected the Corporation's offer.
If any stockholder does not elect to purchase his allocation of Common Stock
then the other stockholders may elect to purchase those shares of Common Stock,
in the ratio of their respective Common Stock holdings in the Corporation;
provided that such election shall be made in the stockholder's Initial Notice or
in a notice to the Corporation and all other holders of Common Stock not later
than thirty (30) days after the Corporation provides the notice of its proposed
issuance of additional shares of Common Stock. The closing of the purchase of
Common Stock by accepting stockholders shall take place on the business day
prior to the proposed issue date stated in the Corporation's notice. Commencing
on that proposed issue date, and continuing for a period of ninety (90) days,
the Corporation shall be free to sell the number of shares specified in its
notice, reduced by the number accepted by holders of Common Stock as provided in
this paragraph Ninth.

                  TENTH: The Corporation's existence shall be effective as of
January 1, 1992

                  ELEVEN: The Corporation reserves the right to amend, alter,
change or repeal any provisions contained in this


                                        4



<PAGE>
 
<PAGE>



Certificate of Incorporation in the manner now or hereafter prescribed by law.
All rights and powers conferred herein on stockholders, directors and officers
are subject to this reserved power.

                  IN WITNESS WHEREOF, I have hereunto set my hand on
December 19, 1991.

                                                /s/ Angela Mia Colasuonno
                                                --------------------------
                                                Angela Mia Colasuonno,
                                                Incorporator


                                        5



<PAGE>
 
<PAGE>



                                State of Delaware

                        Office of the Secretary of State

         I, William T. Quillen, Secretary of State of the State of Delaware, do
hereby certify the attached is a true and correct copy of the Certificate of
Amendment of "U.S. Medical Technologies, Inc.", changing its name from "U.S.
Medical Technologies, Inc." to "Algos Pharmaceutical Corporation", filed in this
office on the fifth day of April, A.D. 1994, at 11 o'clock A.M.


                                        /s/ William T. Quillen
                                        ------------------------------------
                                        William T. Quillen, Secretary of State

                                        Authentication:  7111867

                                        Date:            05-06-94



<PAGE>
 
<PAGE>



                            CERTIFICATE OF AMENDMENT
                                     OF THE
                          CERTIFICATE OF INCORPORATION
                                       OF
                         U.S. MEDICAL TECHNOLOGIES, INC.

         Pursuant to the provisions of Section 242 of the General Corporation
Law of the State of Delaware, the undersigned corporation, for the purpose of
amending its Certificate of Incorporation, hereby certifies as follows:

                  1. The name of the corporation is "U.S. MEDICAL TECHNOLOGIES,
INC. (hereinafter called the "Corporation").

                  2. The Corporation's Certificate of Incorporation is hereby
amended to (i) change the name of the Corporation to "Algos Pharmaceutical
Corporation," (ii) increase the number of authorized shares of Common Stock and
to authorize shares of series Preferred stock, and (iii) eliminate preemptive
rights with respect to the Common Stock. These amendments shall be affected by
(a) deleting in its entirety paragraph "FIRST" of the Certificate of
incorporation and adding in lieu thereof a new paragraph "FIRST" set forth
below, (b) deleting in its entirety paragraph "FOURTH" of the Certificate of
Incorporation and adding in lieu thereof a new paragraph "FOURTH" set forth
below, and (c) deleting in its entirety paragraph "NINTH".




<PAGE>
 
<PAGE>



                  3. Paragraphs "FIRST" and "FOURTH" are hereby amended to read
as follows:

                  "FIRST" The name of the corporation is ALGOS PHARMACEUTICAL
CORPORATION (the "Corporation")."

                  "FOURTH" The total number of shares of all classes which the
Corporation shall have authority to issue is five Million (5,000,000) shares, of
which three million five hundred thousand (3,500,000) shall be common stock
("Common Stock") and one million five hundred thousand (1,500,000) shall be
series preferred stock ("Preferred Stock"). The par value of each such shares is
$.01. The Board of Directors is authorized, subject to limitations prescribed by
law, to provide for the issuance from time to time of the shares of series
Preferred Stock in one or More series, and, by filing a certificate pursuant to
the Delaware General Corporation law, to establish the number of shares to be
included in each such series and fix the designations, powers, relative rights,
qualification, preferences, limitations and restrictions of the shares of each
such series."

                  4. Paragraph "NINTH" in hereby deleted in its entirety and
Paragraph "TENTH" is hereby renumbered as Paragraph "NINTH".



                                        2



<PAGE>
 
<PAGE>



                  5. This amendment was duly adopted and authorized by unanimous
written consent of the Board of Directors of the Corporation effective as of
January 28, 1994, in accordance with Section 141(f) of the Delaware General
Corporation Law, and by the unanimous affirmative vote of the Stockholders of
the Corporation at a meeting duly held an January 28, 1994, in accordance with
Section 228 and Section 242 of the Delaware General Corporation Law.

                  IN WITNESS WHEREOF, the undersigned have signed this document
and caused the Corporation's corporate seal to be affixed as of the 25th day of
March 1994.


                                            U.S. MEDICAL TECHNOLOGIES, INC.


                                            By /s/ John W. Lyle
                                              ------------------------
                                               John W. Lyle, President


Attested by:


 /s/ James R. Ledley
 ---------------------------
James R. Ledley
Assistant Secretary



                                        3




<PAGE>
 
<PAGE>



                                State of Delaware

                        Office of the Secretary of State

         I, William T. Quillen, Secretary of State of the State of Delaware, do
hereby certify the attached is a true and correct copy of the Certificate of
Designation of "Algos Pharmaceutical Corporation", filed in this office on the
second day of May, A.D. 1994, at 11 o'clock A.M..


                                         /s/ William T. Quillen
                                         ------------------------------------
                                         William T. Quillen, Secretary of State

                                         Authentication:  7111866

                                         Date:            05-06-94



<PAGE>
 
<PAGE>



                        ALGOS PHARMACEUTICAL CORPORATION

                         CERTIFICATE OF THE DESIGNATION,
                            PREFERENCES AND RIGHTS OF
                            SERIES A PREFERRED STOCK

                 -----------------------------------------------
                     Pursuant to Section 151 of the General
                    Corporation Law of the State of Delaware
                 -----------------------------------------------

                  The Following resolutions were duly adopted by the Board of
Directors of Algos Pharmaceutical Corporation, a Delaware corporation (the
"Corporation"), pursuant to the provisions of Section 151 of the General
Corporation Law of the State of Delaware, as of March 31, 1994 by unanimous
written consent in lieu of a meeting of the Board of Directors:

                  WHEREAS, the Certificate of incorporation, as amended (the
"Certificate of Incorporation") has authorized the issuance of 1,500,000 shares
of a separate class of stock known as Preferred Stock with a par value of $.01
per share (the "Preferred Stock"); and

                  WHEREAS, the Certificate of Incorporation has vested the Board
of Directors of the Corporation with authority, subject to limitations
prescribed by law, to provide for the issuance from time to time of the shares
of series Preferred Stock in one or more series, and, by filing a certificate
pursuant to the Delaware General Corporation law, to establish the number of
shares to be included in each such series and fix the designations, powers,
relative rights, qualification, preferences, limitations and restrictions of
the shares of each such series; and


                  WHEREAS, it is the desire of the Board of Directors of the
Corporation, pursuant to its authority as aforesaid, to fix the terms of a
series of the class of Preferred Stock;





<PAGE>
 
<PAGE>




                  NOW, THEREFORE, BE IT RESOLVED:

                  1.     Designation. The caries consisting of 872,500 shares of
Preferred Stock, par value $.01 per share, authorized by this resolution shall
be designated as "Series A Preferred Stock" (the "Series A Preferred Stock").

                  2.     Ranking. The Series A Preferred Stock shall, with
respect to rights on liquidation, winding-up and dissolution, rank senior to (i)
all outstanding shares of the Corporation's common stock, $.01 par value per
share ("Common Stock") and (ii) all outstanding classes and series of stock of
the Corporation, whether authorized now or in the future, that does not
expressly provide that it ranks senior to, or on a parity with, the Series A
Preferred Stock as to rights on liquidation, winding-up and dissolution of the
Corporation (all such classes and series of stock, together with the Common
Stock, are collectively referred to as the "Junior Securities").


                  3.     Dividend Rights. (a) The holders of the series A
Preferred Stock shall be entitled to receive dividends payable on Common Stock,
when, as and if declared by the Board of Directors of the Corporation (the
"Board"), out of any funds legally available therefor  based upon the number of
shares of common Stock into a which a share of Series A Preferred Stock is then
convertible in accordance with the conversion provisions described below in
Section 6. Such dividends on the Series A Preferred Stock shall be payable to
holders of record at the


                                        2




<PAGE>
 
<PAGE>



close of business on the date specified by the Board at the time such dividend
is declared (the "Record Date"), and each Record Date shall be not less than 10
nor more than 60 days prior to the date such payment is made. All dividends paid
with respect to shared of Series A Preferred stock shall be paid pro rata to the
holders of Series A Preferred stock entitled thereto.

                  (b) Any shares of Series A Preferred Stock Issued as a
dividend with respect to the Series A Preferred stock Will be duly authorized,
validly issued, fully paid and nonassessable.

                  (c) Dividends on the Series A Preferred Stock shall not be
cumulative and no rights shall accrue to holders of Series A Preferred Stock by
reason of the fact that dividends are not declared or paid on the Series A
Preferred Stock. Dividends, if paid, or if declared and set apart for payment,
must be paid on, or declared and set apart for payment on, all outstanding
shares of Series A Preferred Stock contemporaneously.

                  (d) Each fractional share of Series A Preferred Stock
outstanding, if any, shall be entitled to a ratably proportionate amount of all
dividends paid or other distribution made with respect to the Series A Preferred
stock, at the same time and in the same manner as distributions on all other
shares of Series A Preferred Stock.

                  (e) if any payment or conversion shall be required with
respect to the Series A Preferred Stock on a day that is not


                                        3



<PAGE>
 
<PAGE>



a Business Day (as defined below), such payment or conversion shall be made on
the next Business Day.

                       "Business Day" means a day other then a Saturday, Sunday,
national or New York or New Jersey state holiday or other day in which
commercial banks in New York or New Jersey are authorized or required by law to
close.

                  4.    Liquidation Preference. (a) In the event of any
liquidation, dissolution or winding-up of the Corporation (a "Liquidation"),
whether voluntary or involuntary, each holder of Series A Preferred Stock shall
be entitled to receive out of assets or the Corporation available for
distribution, whether from capital, surplus or earnings, before any amount or
property shall be paid or distributed on account of any Junior Securities, an
amount per share of series A Preferred Stock equal to the sum of fifteen dollars
($15) per share (the "Liquidation Preference").

                  (b) If in connection with any Liquidation the assets of the
Corporation available for distribution to its shareholders are not sufficient to
pay in full the Liquidation Preference on all outstanding shares of Series A
Preferred Stock and other Preferred Stock ranking as to any such distribution on
a parity with the Series A Preferred Stock, then holders of Series A Preferred
Stock and such other Preferred Stock shall share ratably in the distribution of
assets in accordance with the amount that would be payable on such distribution
if the amounts to which the holders of outstanding shares of Series A Preferred


                                        4




<PAGE>
 
<PAGE>



Stock and such other Preferred Stock are entitled were paid in full.

                  (c) For the purposes of this section 4, neither the voluntary
sale, conveyance, lease, exchange or transfer (for cash, shares of stock,
securities or other consideration) of all or substantially all the property or
assets of the Corporation nor the consolidation or merger of the corporation
with one or more other corporations shall be deemed to be a liquidation
dissolution or winding-up, voluntary or involuntary, unless such voluntary sale,
conveyance, lease, exchange or transfer shall be In connection with a
dissolution or winding up of the business of the Corporation.

                  5.     Voting Rights. Except as otherwise required by law,
holders of shares of Series A Preferred Stock shall have no voting rights except
as not forth below:

                           (a)      For so long as shares of series A Preferred
Stock are outstanding, holders of a majority of the outstanding shares of Series
A Preferred Stock shall he entitled, voting as a single class, to elect one
director to the board. Any vacancy occurring in the office of a director elected
by holders of the Series A Preferred Stock pursuant to this Section 5(a) shall
be filled by holders of the Series A Preferred Stock at a spacial meeting of
such holders called by the Corporation not later than 60 days after such vacancy
occurs. Any director elected by holders of the Series A Preferred Stock may be
removed from office at any time, with or without cause, upon the vote or


                                        5




<PAGE>
 
<PAGE>



written consent of holders of a majority of outstanding shares of Series A
Preferred Stock.

                           (b)      Without the affirmative vote or written con-
sent of the holders of at least two-thirds of the outstanding shares of Series A
Preferred Stock, voting as a single class, the Corporation may not:

                                 (i)     amend, alter or repeal any provision of
the Certificate of Incorporation which would materially adversely affect the
voting powers (except an such voting powers may be affected by the authorization
of any new series of Preferred Stock having the same voting rights as tho Series
A Preferred Stock or by the authorization of any other shares of any class which
are not entitled to vote together with the Series A Preferred Stock in any class
vote) or other rights or preferences of holders of the shares of Series A
Preferred Stock; or

                                 (ii)  authorize or create any class of stock
senior to the Series A Preferred Stock upon liquidation.

                           (c)      Without the affirmative vote or written con-
sent of the holders of a majority of the outstanding shares of Series A
Preferred stock, voting separately as a class the corporation shall not merge or
consolidate with or into or transfer all or substantially all of its assets (as
an entirety in one transaction or a series of related transactions) to any
Person, unless the Corporation shall be the successor or resulting corporation
in any merger or consolidation, or the entity (if


                                        6




<PAGE>
 
<PAGE>



other than the Corporation) formed by such consolidation or into which the
Corporation is merged or to which the properties or assets of the corporation
are transferred shall be a corporation organized and existing under the laws of
the United States or any state thereof or the District of Columbia and the
Series A Preferred Stock shall be converted into or arranged for and shall
become shares of such successor or resulting company, having in respect of such
successor or resulting company substantially the same powers, preferences and
relative participating, optional or other rights, and the qualifications,
limitations or restriction thereon, that the Series A Preferred Stock had
immediately prior to such transaction.

                  "Person" means any individual, corporation, partnership, joint
venture, association, joint stock company, trust, or unincorporated
organization.

                  (d) For purposes of this Section 5, each share of series A
Preferred Stock shall have one vote per share.

                  (e) For purposes of exercising any vote, election or consent
under this certificate or under applicable law, shares of Series A Preferred
stock held by the Corporation or any of its subsidiaries shall not be deemed
outstanding and shall not be counted in determining the outcome of any such
vote, election or consent solicitation.



                                        7




<PAGE>
 
<PAGE>



                  6. Conversion. (a) Each share of series A Preferred Stock,
including additional shares issued as dividends, shall be convertible at the
option of the holder thereof at any time into fully paid and nonassessable
shares of Common Stock on the terms and conditions set forth in this Section 6.
The number of shares of Common Stock deliverable upon conversion of each share
of Series A Preferred Stock, adjusted as hereinafter provided, is referred to
herein as the "Common Equivalent Rate." The Common Equivalent Rate to be used to
determine the number of shares of Common Stock to be delivered on the conversion
of any share of Series A Preferred Stock into shares of Common Stock pursuant to
this Section 6 shall be initially 1 share of Common Stock to each share of
Series A Preferred stock provided, however, that such Common Equivalent Rate
shall be subject to adjustment from time to time as provided below in this
Section 6. All adjustments to the Common Equivalent Rate shall be calculated to
the nearest 1/100th of a share of Common Stock. The "Conversion Price" for
Common Stock shall, at any given time, be equal to $10 divided by the Common
Equivalent Rate in effect at such time. The "Current Market Price" for Common
Stock shall, at any given time, be equal to the Conversion Price. The
Corporation shall not make any upward adjustments in the conversion Price except
in the event that the Corporation combines its outstanding shares of Common
Stock into a smaller number of shares. No fractional shares of Series A
Preferred Stock will be issued as a result of conversion, but in lieu thereof,
an amount equal to the fair market value (as determined by the board, whose good
faith


                                        8




<PAGE>
 
<PAGE>



determination shall be conclusive evidence of such fair market value, and
described in a board resolution) of such fractional interest will be paid in
cash by the Corporation.

                  (b) Conversion of Series A Preferred Stock may be effected by
any holder of Series A Preferred Stock by delivering to the corporation at its
principal office or at such other office or agency maintained by the Corporation
for such purpose (i) the certificate for the shares of the Series A Preferred
Stock to be converted and (ii) a written notice stating that such holder elects
to convert all or a specified whole number of such holder's shares of series A
Preferred Stock in accordance with the provisions of this Section 6 and
specifying the name or names in which such holder wishes the certificate or
certificates for shares of Common Stock to be issued. In any such notice
specifies a name or names other than that of such holder, such notice shall be
accompanied by payment of all transfer taxes payable upon the issuance of
shares of Common Stock in such name or names. Other than such taxes, the
Corporation will pay any and all issue and other taxes (other than taxes based
an income) that may be payable in respect of any issuance or delivery of shares
of Common Stock upon conversion of the Series A Preferred Stock. As promptly as
practicable, and in any event within 10 Business Days after the surrender of
such Series A Preferred Stock certificate or certificates and the receipt of
such notice relating thereto and, if applicable, payment of all transfer taxes
(or the demonstration to the reasonable satisfaction of the corporation


                                        9




<PAGE>
 
<PAGE>



that such taxes have been paid), the corporation shall deliver or cause to be
delivered (iii) certificates representing the number of validly Issued, fully
paid and nonassessable shares of Common Stock to which the holder of shares of
the series A Preferred Stock being converted shall be entitled and (iv) if less
than the full number of shares of the Series A Preferred Stock evidenced by the
surrendered certificate or certificates is being converted, a new certificate or
certificates for the number of shares evidenced by such surrendered certificate
or certificates less the number of shares being converted. Such conversion shall
be deemed to have been and at the close of business on the date of giving of
such notion and of such surrender of the certificate or certificates
representing the shares of the Series A Preferred Stock to be converted so that
the rights of the holder thereof as to the shares being converted shall cease
except for the right to receive shares of common stock in accordance herewith,
and the parson entitled to receive the shares of Common Stock shall be treated
for all purposes as having become the record holder of such shares of Common
Stock at such time.

                  (c) upon conversion of any shares of Series A Preferred Stock,
the holder of such shares shall be entitled to receive all declared and unpaid
dividends, if any, on such shares on the due date for the payment therefor,
provided that the record date for such dividends occurs prior to the date of
conversion.



                                       10



<PAGE>
 
<PAGE>



                  (d) The corporation shall at all times reserve and keep
available for issuance upon conversion of the Series A Preferred Stock such
number of its authorized but unissued shares of Common Stock as will from time
to time be sufficient to permit the conversion of all outstanding shares of the
Series A Preferred Stock, and shall take all action required to increase the
authorized number of shares of Common Stock if and to the extent necessary to
permit the conversion of all outstanding shares of the Series A Preferred Stock.

                  (e) The Common Equivalent Rate shall be subject to adjustment
as follows:

                           (i) If the Corporation (1) pays a dividend or makes a
         distribution with respect to Common Stock in shares of common Stock or
         other shares of capital stock (including, without limitation,
         securities convertible into or exchangeable for shares of Common Stock)
         of the Corporation or in rights to purchase capital stock or other
         securities if such rights are not separable from the Common Stock
         except upon the occurrence of a contingency, or (2) subdivides or
         splits its outstanding shares of Common Stock into a larger number of
         shares, or (3) combines its outstanding shares of Common Stock into a
         smaller number of shares, or (4) issues by reclassification of its
         shares of Common Stock any shares of capital stock of the Corporation,
         then, in each such event, the Common Equivalent Rate in effect


                                       11




<PAGE>
 
<PAGE>



         immediately prior to such event shall be adjusted so that the holder of
         each share of the Series A Preferred Stock shall be entitled to receive
         on the conversion of such share of the Series A Preferred Stock the
         number of shares of Common Stock and other shares and rights to
         purchase capital stock or other securities, (or, in the event of the
         redemption of any such shares or rights, any cash, property or
         securities paid in respect of such redemption) that such holder would
         have owned or been entitled to receive after the happening of any of
         such event had such share of the Series A Preferred Stock been
         surrendered for conversion at the Common Equivalent Rate in affect
         immediately prior to such event or the record date therefor, whichever
         is earlier. Such adjustment shall become effective at the opening of
         business on the Business Day next following the record date for
         determination of shareholders entitled to receive such dividend or
         distribution in the care of a dividend or distribution, and shall
         become effective immediately after the effective date in the case of a
         subdivision, split, combination or reclassification; and any shares of
         Common Stock issuable in payment of a dividend shall be deemed to have
         been issued immediately prior to the close of business on the record
         date for such dividend for purposes of calculating the number of
         outstanding shares of common Stock under Sections 6(e)(ii) and (iii).



                                       12



<PAGE>
 
<PAGE>



                           (ii) if the corporation at any time issues rights or
         warrants expiring within 45 days of the applicable record data to all
         holders of its Common Stock entitling them to subscribe for or purchase
         shares of Common Stock at a price per share that is less than the
         Conversion Price for common stock or less than the then fair market
         value of a Share of Common Stock (as determined by the Board) on the
         date fixed for the determination of shareholders entitled to receive
         such rights or warrants, or issues securities convertible into or
         exchangeable for Common Stock to all holders of its Common Stock
         entitling them to purchase shares of Common stock at a price per share
         that is less than the conversion Price for Common Stock or less than
         the then fair market value of a share of Common Stock (as determined by
         the board) on the date fixed for the determination of shareholders
         entitled to receive such securities, then in each such event the Common
         Equivalent Rate Shall be adjusted by multiplying the Common Equivalent
         Rate in effect immediately prior to any such event by a fraction, the
         numerator of which shall be the number of shares of common stock
         outstanding on the date fixed for such determination plus the number of
         additional shares of common stock offered for subscription or purchase
         pursuant to such rights or warrants or convertible or exchangeable
         securities, and the denominator of which shall be the number of shares
         of common stock outstanding on the date fixed for such determination
         plus the number of shares of Common Stock which the aggregate offering
         price of the total


                                       13




<PAGE>
 
<PAGE>



         number of shares of Common Stock so offered for subscription or
         purchase would purchase at such Conversion Price (determined by
         dividing (a) the product of (1) the total number of shares being
         offered and (2) the exercise price of such rights or warrants or
         convertible or exchangeable securities, by (b) such Conversion Price).
         To the extent that shares of Common Stock are not delivered as of or
         prior to the expiration of such rights or warrants, the Common
         Equivalent Rate shall be readjusted to the Common Equivalent Rate that
         would then be in effect had the adjustments made upon the issuance of
         such rights or warrants been made upon the basis of delivery of only
         the number of shares of Common Stock actually delivered. If the
         Corporation changes the terms of any securities convertible into shares
         of Common stock (other than the Series A Preferred Stock pursuant to
         this Section 6) to decrease the conversion price or increase the number
         of shares of Common Stock issuable upon conversion, then the Common
         Equivalent Rate shall be adjusted as if (a) securities with the new
         terms had been issued on the affective date of the change, and (b) the
         securities outstanding prior to the change had been redeemed or retired
         without being converted into Common Stock.

                           (iii) If the Corporation pays a dividend or makes a
         distribution to all holders of its Common Stock of any evidence of
         indebtedness owed to the Corporation or other assets (including shares
         of capital stock of the Corporation


                                       14




<PAGE>
 
<PAGE>



         other than Common stock), but excluding any ordinary cash dividends
         paid out of retained earnings of the Corporation or any distributions
         and dividends referred to in section 5(e)(i), or issues to all holders
         of its Common Stock rights or warrants to subscribe for or purchase any
         of its assets or securities (other than those referred to in Section
         6(e)(ii), then in each such case the Common Equivalent Rate shall be
         adjusted by multiplying the Common Equivalent Rate in effect on the
         date fixed for the determination of shareholders entitled to receive
         such dividend or distribution by a fraction, the numerator of which
         shall be the Conversion Price for the Common Stock on the date fixed
         for such determination and the denominator of which shall be such
         Conversion Price less the fair value (as determined by the board in
         good faith) as of the date fixed for such determination of the portion
         of the assets or evidence of indebtedness to distributed, or of such
         subscription rights or warrants, applicable to one share of Common
         Stock. Such adjustment shall become effective on the opening of
         business on the Business Day next following the date fixed for the
         determination of shareholders entitled to receive such dividend or
         distribution. In addition to the foregoing, holders of Series A
         Preferred Stock shall be given notice of any dividend or distribution
         described in this Section 6(e)(Iii) at least 10 days prior to the date
         for determining shareholders entitled to receive such dividend or
         distribution.


                                       15




<PAGE>
 
<PAGE>



                           (iv) If the Corporation issues any shares of Common
         Stock at a price per share that is less than the Conversion Price for
         Common Stock or less than the then fair market value of a share of
         Common Stock (as determined by the Board) on the date of issuance, then
         the Common Equivalent Rate shall be adjusted by multiplying the Common
         Equivalent Rate in effect immediately prior to any such issuance by
         a fraction, the numerator of which shall be the number of shares of
         Common Stock outstanding on the date of issuance plus the number of
         additional shares of Common Stock offered to be issued, and the
         denominator of which shall be the number of shares of Common stock
         outstanding on the date of Issuance (without giving effect to the
         issuance of the additional shares of Common Stock) plus the number of
         shares of Common Stock which the aggregate offering price of the total
         number of shares of common Stock so offered would purchase at such
         Conversion Price (determined by dividing (1) the product of (a) the
         total number of additional shares and (b) the purchase price paid or
         payable with respect to such additional shares, by (2) such Conversion
         Price). Notwithstanding the foregoing, no adjustment shall be made
         pursuant to this Section 6(e)(iv) if an adjustment in made with respect
         to that Issuance pursuant to Section 6(e)(it) or 6(e)(v).

                           (v) If the Corporation issues securities convertible
into or exchangeable for Common" Stock (including,


                                       16




<PAGE>
 
<PAGE>



         without limitation, rights or warrants, but excluding those referred to
         in Section 6(e)(ii) and excluding options granted to the Corporation's
         directors, officers or employees under a Corporation stock option plan
         that are exercisable into Common Stock at a price per share of Common
         Stock that is not less than the fair market value (as determined by the
         board) of a share of Common Stock on the date of grant) at a price per
         share of Common Stock initially deliverable upon conversion or exchange
         of such securities that is less than the Conversion Price for Common
         Stock or less than the then fair market value of a share of Common
         Stock (as determined by the Board) on the date of issuance, then the
         common Equivalent Rate shall be adjusted by multiplying the Common
         Equivalent Rate in effect immediately prior to such issuance by a
         fraction, the numerator of which shall be the number of shares of
         Common Stock outstanding an the date of issuance plus the number of
         shares of Common Stock deliverable upon conversion of or in exchange
         for such securities, and the denominator of which shall be the number
         of shares of Common Stock outstanding on the date of issuance plus the
         number of shares of Common Stock which the aggregate consideration
         received for such securities would purchase at such Conversion Price
         (determined by dividing (1) the product of (a) the total number of
         shares of Common Stock deliverable upon conversion of or in exchange
         for such securities and (b) the aggregate consideration received for
         such securities, by (2) such


                                       17




<PAGE>
 
<PAGE>



         Conversion Price). To the extent that shares of Common Stock are not
         delivered as of or prior to the expiration, if any, of the conversion
         or exchange rights of such securities, the Common Equivalent Rate shall
         be readjusted to the Common Equivalent Rate that would than be in
         affect had the adjustments made upon the issuance of such convertible
         or exchangeable securities been made upon the basis of delivery of only
         the number of shares of Common Stock actually delivered.

                           (vi) If there shall occur any merger or consolidation
         of the Corporation with or into another Person (other than a merger or
         consolidation that does not result in any conversion, exchange or
         cancellation of outstanding shares of common Stock), any sale or
         transfer of all or substantially all of the assets of the Corporation
         or any compulsory share exchange that results in the conversion or
         exchange of the Common Stock into, or the right to receive, other
         securities or other property (whether of the Corporation or any other
         entity), then the series A Preferred Stock will thereafter no longer be
         subject to conversion into shares of Common Stock pursuant to this
         Section 6, but instead will be subject to conversion into the kind and
         amount of securities or other property that the holder of such shares
         of the Series A Preferred Stock would have owned immediately after such
         merger, consolidation, sale or share exchange if such holder's shares
         of the Series A Preferred


                                       18




<PAGE>
 
<PAGE>



         Stock had been converted into shares of Common Stock immediately before
         the effective time of such merger or consolidation. If this Section
         6(e)(vi) applies, then no adjustment in respect of the same merger or
         consolidation shall be made pursuant to the other provisions of this
         Section 6. In the event that at any time, as a result of an adjustment
         made pursuant to this clause (vi), the Series A Preferred Stock shall
         become Subject to conversion into any securities other than shares of
         Common Stock, thereafter the number of such other securities so
         issuable upon conversion of the shares of the Series A Preferred Stock
         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 shares of the Series A Preferred Stock contained in this
         Section 6.

                           (vii) If after the issuance of the Series A Preferred
         Stock the Corporation issues more than one class of Common Stock and
         takes any action with respect to one or more (but less than all)
         classes of Common Stock and such actions if taken with respect to all
         classes of Common Stock, would result in an adjustment to the Common
         Equivalent Rate pursuant to this Section 6, the Common Equivalent Rate
         shall be adjusted as if such action had been taken with respect to all
         classes of Common Stock.



                                       19



<PAGE>
 
<PAGE>



                           (viii) For purposes of this Section 6, the number of
         shares of Common Stock outstanding at any time shall not include any
         shares of Common Stock then owned or held by or for the account of the
         Corporation.

                           (ix) Notwithstanding anything to the contrary in this
         Section 6, the Corporation shall not be required to give effect to any
         adjustment in the Common Equivalent Rate unless and until the not
         affect of one or more adjustments (each of which shall be carried
         forward), determined as above provided, shall have resulted in a change
         of the conversion rate by at least one-hundredth of one share of Common
         Stock, and when the cumulative net affect of more than one adjustment
         so determined shall be to change the conversion rate by at least
         one-hundredth of one share of Common Stock, such change in conversion
         rate shall thereupon be given effect.

                           (x) upon the occurrence of any event specified in
         this Section 6 that would result in any adjustment of the Common
         Equivalent Rate, then, and in each such case, the Corporation shall
         promptly deliver by first-class mail, postage prepaid to each holder at
         its address as it appears in the records of the Corporation, a
         certificate signed by an executive officer of the Corporation setting
         forth in reasonable detail the event requiring the adjustment and the
         method by which such adjustment was calculated and specify-


                                       20



<PAGE>
 
<PAGE>



         ing the Common Equivalent Rate in effect following such
         adjustment.

                  (f) Upon consummation of an underwritten initial public
offering of Common Stock pursuant to a registration statement under the
Securities Act of 1933, as amended, the outstanding shares of series A Preferred
Stock shall automatically be converted into shares of Common Stock at the Common
Equivalent Rate then in effect. A conversion of Series A Preferred Stock into
Common Stock pursuant to this section 6(f) shall be referred to as a "Mandatory
conversion."

                  On and after a Mandatory conversion, notwithstanding that any
certificates for the shares of Series A Preferred Stock shall not have bean
surrendered for conversion, the shares of such Series A Preferred stock
evidenced thereby shall be deemed to be no longer outstanding, and all rights
with respect thereto shall forthwith cease and terminate, except only the rights
of the holder to receive (i) the shares of Common Stock entitled to receive upon
conversion of such holder's Series A Preferred Stock, and (ii) all declared but
unpaid dividends on such holder's Series A Preferred Stock, which shall be paid
on the dividend payment date. If any holder of series A Preferred Stock
surrenders a certificate for such holder's shares of Series A Preferred Stock to
the Corporation or its transfer agent upon such conversion, a certificate for
the number of shares of common Stock into which the shares of Series A Preferred
Stock


                                       21




<PAGE>
 
<PAGE>


surrendered were convertible shall promptly be issued and
delivered to such holder.

                  7. Required Shares. Shares of Series A Preferred Stock
converted or otherwise Purchased or acquired by the Corporation shall be
restored to the status of authorized but unissued shares of Preferred Stock
without designation as to series.

                  8. No Redemption or Sinking Fund. Shares of Series A Preferred
Stock are not Subject to any mandatory or optional redemption provisions or to
the operation of a sinking fund.

                  IN WITNESS WHEREOF, ALGOS PHARMACEUTICAL CORPORATION has
caused this certificate to be signed by its President and attested by its
Assistant Secretary this 29th day of April 1994.


                                        ALGOS PHARMACEUTICAL CORPORATION


                                        By /s/ John W. Lyle
                                           ----------------------------
                                           Name:  John W. Lyle
                                           Title: President


Attested by:


 /s/ James R. Ledley
- ------------------------------------
James R. Ledley, Assistant Secretary


                                       22



<PAGE>


<PAGE>
            STATEMENT RE COMPUTATION OF PRO FORMA PER SHARE EARNINGS
 
<TABLE>
<CAPTION>
                                                                                                       FOR THE
                                                                                                        THREE
                                                                                                       MONTHS
                                                                                                     ENDED MARCH
                                                                                        1995          31, 1996
                                                                                     -----------     -----------
 
<S>                                                                                  <C>             <C>
Net loss..........................................................................   $(2,122,435)    $  (567,965)
Weighted average number of common shares outstanding:
     Weighted average number of common shares outstanding.........................     6,002,635       6,121,333
     Common shares issuable upon conversion of Series A Preferred Stock...........     5,830,750       5,830,750
     Incremental common shares outstanding from the exercise of stock options
      granted within one year of the initial public offering......................       265,832         265,832
                                                                                     -----------     -----------
                                                                                      12,099,217      12,210,769
                                                                                     -----------     -----------
                                                                                     -----------     -----------
 
Net loss per common share.........................................................         $(.18)          $(.05)
                                                                                     -----------     -----------
                                                                                     -----------     -----------
 
 
</TABLE>
<PAGE>



<PAGE>
                                                                      EXHIBIT 21
 
                         SUBSIDIARIES OF THE REGISTRANT
 
     None.

<PAGE>


<PAGE>
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We  consent to the inclusion in this  registration statement on Form S-1 of
our report dated February 7, 1996, except as to the fourth paragraph of Note  11
for which the date is May 20, 1996, on our audits of the financial statements of
Algos  Pharmaceutical Corporation. We also consent  to the reference to our firm
under the captions 'Selected Financial Information' and 'Experts.'
 
                                          COOPERS & LYBRAND L.L.P.
 
Princeton, New Jersey
May 21, 1996

<PAGE>




<PAGE>
                                                                    EXHIBIT 23.2
 
                           CONSENT OF PATENT COUNSEL
 
     We  consent to the reference to our firm under the caption 'Experts' in the
Registration Statement on Form S-1.
 
                                          DILWORTH & BARRESE
 
May 22, 1996

<PAGE>



<TABLE> <S> <C>

<ARTICLE>                              5
       
<S>                                    <C>               <C>
<PERIOD-TYPE>                          12-MOS            3-MOS
<FISCAL-YEAR-END>                      DEC-31-1995       DEC-31-1996
<PERIOD-START>                         JAN-01-1995       JAN-01-1996
<PERIOD-END>                           DEC-31-1995       MAR-31-1996
<CASH>                                 3,707,100         3,095,419
<SECURITIES>                                   0                 0
<RECEIVABLES>                                  0                 0
<ALLOWANCES>                                   0                 0
<INVENTORY>                                    0                 0
<CURRENT-ASSETS>                       3,718,157         3,101,931
<PP&E>                                   167,963           171,319
<DEPRECIATION>                            67,259            78,282
<TOTAL-ASSETS>                         3,820,452         3,196,559
<CURRENT-LIABILITIES>                    299,632           226,105
<BONDS>                                        0                 0
<COMMON>                                  60,100            61,387
                          0                 0
                                7,025             7,025
<OTHER-SE>                             3,453,695         2,902,042
<TOTAL-LIABILITY-AND-EQUITY>           3,820,452         3,196,559
<SALES>                                        0                 0
<TOTAL-REVENUES>                               0                 0
<CGS>                                          0                 0
<TOTAL-COSTS>                          2,374,983           610,552
<OTHER-EXPENSES>                               0                 0
<LOSS-PROVISION>                               0                 0
<INTEREST-EXPENSE>                             0                 0
<INCOME-PRETAX>                       (2,122,435)         (567,965)
<INCOME-TAX>                                   0                 0
<INCOME-CONTINUING>                            0                 0
<DISCONTINUED>                                 0                 0
<EXTRAORDINARY>                                0                 0
<CHANGES>                                      0                 0
<NET-INCOME>                          (2,122,435)         (567,965)
<EPS-PRIMARY>                              (0.18)            (0.05)
<EPS-DILUTED>                              (0.18)            (0.05)
        


<PAGE>




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