CONNETICS CORP
S-1/A, 1997-12-12
PHARMACEUTICAL PREPARATIONS
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<TABLE>
<CAPTION>
   
                         As filed with the Securities and Exchange Commission on December 12, 1997
                                                                                                 Registration No. 333-41195
    

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

<S>              <C>                                          <C>                                <C>
                                            SECURITIES AND EXCHANGE COMMISSION
                                                  Washington, D.C. 20549
                                                      ---------------

                                                               
                                                      AMENDMENT NO. 1
                                                             TO
                                                          FORM S-1
                                                   REGISTRATION STATEMENT
                                                           UNDER
                                                 THE SECURITIES ACT OF 1933
                                                               

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

                                                   CONNETICS CORPORATION
                                  (Exact name of Registrant as specified in its charter)


                 Delaware                                     2834                               94-3173928
      (State or other jurisdiction of             (Primary Standard Industrial                (I.R.S. Employer
       incorporation or organization)              Classification Code Number)             Identification Number)

                                                  3400 West Bayshore Road
                                                    Palo Alto, CA 94303
                                                      (650) 843-2800
   (Address, including zip code, and telephone number, including area code, of Registrant's principal executive offices)

                                                     Thomas G. Wiggans
                                           President and Chief Executive Officer
                                                   CONNETICS CORPORATION
                                                  3400 West Bayshore Road
                                                    Palo Alto, CA 94303
                                                      (650) 843-2800
          (Name and address, including zip code, and telephone number, including area code, of agent for service)

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

                                                          COPY TO:

                                                      Joshua L. Green
                                                     VENTURE LAW GROUP
                                                    2800 Sand Hill Road
                                                Menlo Park, California 94025
                                                       (650) 854-4488

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

                              Approximate date of commencement of proposed sale to the public:
                      As soon as practicable after the effective date of this Registration Statement.

                                                      ---------------
</TABLE>


<PAGE>


    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. [ ]

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

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

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

       

    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 this  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

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


<PAGE>


PROSPECTUS

   
                  Subject to Completion dated December 11, 1997
    

                                1,750,000 Shares

                              Connetics Corporation

                                  Common Stock

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

   
    All of the shares of Common Stock  offered  hereby are being issued and sold
directly by Connetics Corporation ("Connetics" or the "Company"). Such shares of
Common  Stock  will be  offered  exclusively  to  institutional  investors,  and
affiliates  of such  institutional  investors  and possibly to other  accredited
investors.  The Company's  Common Stock is quoted on the Nasdaq  National Market
under the  symbol  "CNCT."  On  December  10,  1997,  the last sale price of the
Company's  Common Stock as reported on the Nasdaq  National Market was $2.75 per
share. See "Price Range of Common Stock."
    

    The Common Stock offered  hereby  involves a high degree of risk.  See "Risk
Factors" beginning on page 7.

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

  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.


                                          Price to       Proceeds to
                                         Public(1)        Company(2)
    Per Share                                $                $
    Total                                    $                $
                                             --               -


    (1) The final price of the Common Stock will be determined  by  negotiations
        between the Company and prospective purchasers of the Common Stock.
    (2) Before deducting  estimated expenses of $300,000 payable by the Company.
        No underwriting  discounts or commissions will be paid by the Company in
        connection with the sale of the Common Stock offered hereby.

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

    The shares of Common  Stock  offered  hereby  are  offered  directly  by the
Company. The Company has not fixed a minimum number of shares of Common Stock to
be sold in this  offering and funds  received by the Company on the sale of less
than all of the shares of Common Stock will not be placed in an escrow, trust or
similar arrangement. It is expected that delivery of certificates for the shares
of Common Stock offered hereby will be made against payment for the Common Stock
at the offices of the Company,  3400 West Bayshore Road, Palo Alto,  California,
and the offering of any unsold shares  hereunder will terminate,  not later than
30 days after the date of this Prospectus.

   
                                 ---------------
December __, 1997
    


<PAGE>


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


<PAGE>



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

    No  person,  dealer,  sales  representative  or any  other  person  has been
authorized to give any information or to 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  Underwriter.  This Prospectus does not
constitute an offer to sell, or a solicitation of an offer to buy any securities
other  than the  registered  securities  to which it  relates or an offer to, or
solicitation  of,  any  person  in any  jurisdiction  where  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  since the date hereof or
that the  information  contained  herein is correct as of any date subsequent to
the date hereof.

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

<TABLE>
                                                 TABLE OF CONTENTS

<CAPTION>
                                                                                                             Page
                                                                                                             ----
<S>                                                                                                          <C>
Prospectus Summary.....................................................................................        3
Risk Factors...........................................................................................        7
The Company............................................................................................       17
Use of Proceeds........................................................................................       17
Price Range of Common Stock............................................................................       17
Dividend Policy........................................................................................       18
Capitalization.........................................................................................       19
Dilution...............................................................................................       20
Selected Financial Data................................................................................       21
Management's Discussion and Analysis of Financial Condition and Results of Operations..................       22
Business...............................................................................................       26
Management.............................................................................................       40
Certain Relationships and Related Transactions.........................................................       49
Principal Stockholders.................................................................................       52
Description of Capital Stock...........................................................................       55
Plan of Distribution...................................................................................       58
Legal Matters..........................................................................................       58
Experts................................................................................................       59
Additional Information.................................................................................       59
Index to Financial Statements..........................................................................      F-1


===================================================================================================================
</TABLE>


         The "C with  interlocking  hemisphere"  logo  used  alone  and with the
Company's name, "Connetics,"  "ConXn(TM)" and "Ridaura(R)" are trademarks of the
Company.  All other  tradenames and trademarks  appearing in this Prospectus are
the property of their respective holders.

                                      -2-

<PAGE>


                               PROSPECTUS SUMMARY


         The following summary is qualified in its entirety by the more detailed
information and the Financial  Statements and Notes thereto contained  elsewhere
in this Prospectus.  This Prospectus contains  forward-looking  statements which
involve  risks and  uncertainties.  The  Company's  actual  results  may  differ
significantly  from the results discussed in these  forward-looking  statements.
Factors  that might  cause such a  difference  include,  but are not limited to,
those discussed in "Risk Factors" and  "Management's  Discussion and Analysis of
Financial  Condition  and  Results of  Operations,"  as well as those  discussed
elsewhere in this Prospectus.

                                   The Company

         Connetics Corporation  ("Connetics" or the "Company") is focused on the
development of therapeutics to address serious diseases involving the connective
tissues of the body.  Connective  tissues are  components  of the body that form
structural  or binding  elements such as skin,  joints,  ligaments and lining of
organs, and form the  three-dimensional  structure that allows cells to function
normally.  The diseases or conditions initially addressed by the Company include
scleroderma,  multiple sclerosis,  rheumatoid arthritis, psoriasis, and keloids.
Patients  suffering  from  these  conditions  experience  a variety  of  chronic
problems   depending   on  the   particular   condition,   including   excessive
uncontrollable itching,  extensive rashes and lesions, hardening of the skin and
internal organs, severe scarring and lack of mobility.  The most severe of these
diseases cause painful  disfigurement,  disability and, in certain cases, death.
The Company  estimates that over five million Americans suffer from its targeted
diseases in their various forms,  with over five billion  dollars spent annually
on treatments that are mostly palliative in nature.  Although individually these
diseases  have been the subject of various  independent  research  programs,  no
concentrated effort has been aimed at developing this market segment as a whole.
The Company has several  products in clinical  trials  addressing  these disease
indications:  betamethasone valerate quick break foam ("Betamethasone  mousse"),
ConXn(TM)  (recombinant  human relaxin H2)  ("relaxin"),  T cell receptor V beta
peptide therapeutic vaccines ("TCR Vaccines"), and gamma interferon (1b) ("gamma
interferon").  In December  1996,  the Company  acquired the exclusive  U.S. and
Canadian rights to Ridaura(R)  (auranofin),  a disease  modifying  antirheumatic
drug approved for sale,  from  SmithKline  Beecham  Corporation  and  affiliated
entities  ("SmithKline"),  which is  currently  distributing  the product on the
Company's behalf.

         Relaxin.  Relaxin is a  naturally  occurring  protein  that is known to
promote remodeling of connective tissues.  The Company is developing relaxin for
the  treatment of  scleroderma,  as well as other  connective  tissue  diseases.
Scleroderma,  a disorder  characterized  by thickening and hardening of the skin
and internal  organs,  generally  afflicts women in their  child-bearing  years.
Scleroderma can cause extensive  disfigurement  and quality of life  impairment,
making it impossible for afflicted  patients to carry out the most routine daily
functions.  This disease  affects over 300,000  individuals in the United States
and, in its severe form (known as systemic  sclerosis,  which  affects  60,000 -
80,000  individuals  in the U.S.),  has a five-year  mortality  rate of 50%-70%.
Research by two of the Company's  founders and their  colleagues  has shown that
relaxin can inhibit excessive connective tissue formation and promote connective
tissue  remodeling.  Results from several  clinical  trials in individuals  with
systemic  sclerosis,  including a 30-patient  Company sponsored Phase I clinical
trial,  indicate that continuous  administration  of relaxin was well tolerated,
without any serious  drug-related  adverse  effects.  In June 1997,  the Company
announced  the  results  of its Phase II  clinical  trial for use of  relaxin in
patients with scleroderma,  which showed that administration of relaxin caused a
significant  reduction  in skin score (a measure of disease  progression)  and a
trend toward improvement in all twelve other disease  parameters.  Thus, relaxin
may have a beneficial  effect on connective tissue turnover and thus may provide
a treatment  for  scleroderma.  The Company has met with the U.S.  Food and Drug
Administration (FDA), and based on that meeting,  plans to begin a pivotal trial
of relaxin in 1998.  The Company has also  conducted a preclinical  animal study
that  demonstrated  relaxin's  potential  ability  to inhibit  pulmonary  (lung)
fibrosis and is conducting preclinical studies with relaxin in liver and cardiac
fibrosis and infertility.

         TCR Vaccines.  The Company is developing TCR Vaccines for the treatment
of  autoimmune  diseases.  Connetics  has two TCR Vaccines  product  programs in
development  for  rheumatoid  arthritis and multiple  sclerosis.  These diseases
collectively  disable over two million people  nationwide,  with combined annual
treatment  costs

                                      -3-

<PAGE>

exceeding two billion dollars.  Results from a physician sponsored Phase I trial
involving 11 patients and a Phase I/II clinical trial involving 23 patients with
chronic  progressive  multiple  sclerosis  suggest  that a  number  of  patients
achieved the desired immune  response to the vaccine,  that the vaccine was well
tolerated and that patients who had the desired  immune  response  experienced a
stabilization  of disease  without side effects  during one year of therapy.  In
January  1997,  the Company  initiated a Phase I/II clinical  trial  designed to
assess  the  immunogenicity  of TCR  Vaccines  in  multiple  sclerosis.  Patient
enrollment  is complete,  and results from the trial are expected in early 1998.
The Company has also initiated a pilot clinical study in the use of TCR Vaccines
for the treatment of  rheumatoid  arthritis and expects to have the results from
this trial by mid-1998.

         Betamethasone  mousse.  The Company has an exclusive license to develop
and  market  Betamethasone  mousse  (a  quick  break  foam  formulation  of  the
dermatologic  drug,  betamethasone  valerate) in North America.  The product has
been approved for sale in the United  Kingdom and is being  marketed in the U.K.
by Evans  Medical Ltd. The Company is  developing  Betamethasone  mousse for the
treatment  of scalp  psoriasis,  a condition  that affects  approximately  three
million persons in the United States. In August 1997, the Company announced that
results from its Phase III clinical trial with Betamethasone mousse demonstrated
statistically significant improvement over both placebo and betamethasone lotion
for the  treatment of scalp  psoriasis.  The Company  intends to file a New Drug
Application (NDA) with the U.S. Food and Drug Administration (FDA) to market the
product for use in all steroid-responsive  dermatoses,  including psoriasis,  in
1998.  The Company  also has rights to develop  additional  products in the foam
formulation.  The Company has  formulated  a high  potency  steroid and plans to
begin Phase III clinical trials of this product early in 1998.

         Gamma  Interferon.  Gamma  interferon  is one of a family  of  proteins
involved in the  regulation  of the immune  system and has been shown to inhibit
the production of collagen,  the primary component of connective  tissue.  Gamma
interferon is approved by the FDA and marketed by Genentech,  Inc. ("Genentech")
for a rare,  serious immune disease.  The Company is developing gamma interferon
for the  treatment of keloids,  which are  unsightly,  painful,  elevated  scars
resulting from collagen overproduction. Earlier trials using gamma interferon in
the treatment of keloids have shown clinically significant responses in reducing
the size and/or  incidence  of  recurrence  of treated  keloids.  Based on these
studies,  the Company has commenced a Phase II clinical  trial for the treatment
of keloids. Patient enrollment has been completed for this trial. In August 1997
the Company also  announced  results from a Phase III trial of gamma  interferon
for the treatment of atopic  dermatitis  that indicated that the product did not
show an acceptable  therapeutic  response  with respect to the primary  clinical
endpoint.  As a result,  the  Company  suspended  plans to  submit a  biological
license  application for gamma interferon for the treatment of atopic dermatitis
pending  complete  analysis of the data from the trial.  Although the  Company's
preliminary conclusion is to not pursue gamma interferon for this indication any
further, the complete results from this trial are expected by the end of 1997.

         Ridaura(R).  In December 1996, the Company  acquired the exclusive U.S.
and Canadian rights to Ridaura  (auranofin),  a disease modifying  antirheumatic
drug, from SmithKline Beecham  Corporation and related entities  ("SmithKline").
Ridaura is an  established  therapy  for  rheumatoid  arthritis,  an  autoimmune
disease that afflicts one to two percent of adult Americans (approximately three
million people), mostly women. Under its agreement with SmithKline,  the Company
acquired  all rights,  title and  interest to  SmithKline's  U.S.  and  Canadian
intellectual  property  rights for Ridaura,  along with  related  assets such as
customer lists, contracts,  product files and unfilled customer orders. Although
the primary patents for Ridaura expired in 1989 and 1992, the Company intends to
use the other  valuable  intellectual  property  rights and assets  acquired  in
connection  with its  marketing of the product in the United  States.  Connetics
began  marketing  Ridaura  through in its own sales force in  mid-1997.  Through
agreements with  SmithKline,  customer orders and  distribution  for the product
will  continue to be managed by  SmithKline  through  1997 (after which time the
Company intends to transition such functions to a third party  distributor)  and
SmithKline will manufacture and supply Ridaura in final finished package form to
the Company  for an initial  term of five years.  The  Company is  currently  in
discussions  regarding the sale or license to a Canadian company of the Canadian
rights to  Ridaura,  but there can be no  assurance  that an  agreement  will be
consummated.

         Corporate  Strategy.  The  Company's  strategy  is to: (i) focus on the
treatment of serious and chronic diseases involving connective tissues caused by
inflammation,  abnormal  remodeling  and autoimmune  disorders,

                                      -4-

<PAGE>

(ii)  target  its  initial   commercial   activities  at   rheumatologists   and
dermatologists, which can be effectively served by focused and specialized sales
and marketing activities, (iii) expand its existing product portfolio and pursue
early  commercialization  opportunities  by in-licensing  other  therapeutically
related   products  that  are  already   marketed  or  in  late  stage  clinical
development,  (iv) pursue earlier stage opportunities in the field of connective
tissue disorders with high potential,  (v) leverage its product  development and
commercialization  expertise  by pursuing  additional  specialized  diseases and
markets,   (vi)   utilize   corporate   partnerships   to  pursue  new  business
opportunities  and overseas  licensing of the Company's  products in development
and (vii)  minimize  drug  discovery  costs,  manufacturing  costs  and  capital
requirements.

         The  Company's  principal  executive  offices  are located at 3400 West
Bayshore Road, Palo Alto, CA 94303, and its telephone number at that location is
(650) 843-2800.

                                      -5-

<PAGE>

<TABLE>

<CAPTION>
                                                   The Offering

<S>                                                         <C>
Common Stock being offered..............................    1,750,000 shares
Common Stock to be outstanding after the offering.......    13,100,602 shares(1)
Use of Proceeds.........................................    To fund clinical development and a potential product
                                                            launch, the repayment of certain indebtedness and
                                                            working capital and general corporate purposes.  See
                                                            "Use of Proceeds."
Nasdaq National Market Symbol...........................    CNCT

</TABLE>

<TABLE>
                                              Summary Financial Data
                                       (In thousands, except per share data)
<CAPTION>
                                                                                                              Nine
                                                                                                             Months
                                                                     Year Ended December 31,                  Ended
                                                                  1994         1995         1996       September 30, 1997
                                                                  ----         ----         ----       ------------------
                                                                                                           (Unaudited)
<S>                                                            <C>            <C>         <C>               <C>
Statement of Operations Data:
Product revenues ...........................................   $    --        $    --       $ 428           $ 5,053
Cost of product sales.......................................        --             --          --               815
License amortization........................................        --             --         594             5,344
Research and development expense............................     6,436          8,271      13,161            14,731
Selling, general and administrative expense.................     1,317          2,113       5,434             6,599
Interest income (expense), net..............................       (97)            12         247              (604)
Net loss....................................................    (7,850)       (10,372)    (18,514)          (23,040)
Net loss per share..........................................     (1.84)         (2.34)      (2.71)            (2.31)
Shares used in computing net loss per share.................     4,276          4,435       6,825            10,034

</TABLE>

<TABLE>
<CAPTION>
                                                                                 September 30, 1997
                                                                                     (Unaudited)
                                                                         ------------------------------------
                                                                            Actual         As Adjusted(2)
                                                                            ------         --------------
<S>                                                                        <C>                 <C>
Balance Sheet Data:
Cash, cash equivalents and short-term investments.....................     $ 14,140            $19,090
Working capital.......................................................        1,854              6,804
Total assets..........................................................       33,839             38,789
Notes payable, current portion........................................        5,923              5,923
Noncurrent capital lease obligations, capital loans and long-term debt        1,302              1,302
Other long-term liabilities...........................................        6,187              6,187
Redeemable convertible preferred stock, Series A......................        1,650              1,650
Accumulated deficit...................................................      (60,963)           (60,963)
Total stockholders' equity............................................       10,384             15,334
<FN>
- ----------

(1) Based  upon the  number of  shares  outstanding  as of  November  14,  1997.
    Excludes  3,033,261 shares of Common Stock issuable upon exercise of options
    and warrants  outstanding  as of November 14,  1997.  See  "Capitalization,"
    "Management  -- Stock  Plans,"  and  Notes  11 and 12 of Notes to  Financial
    Statements.

(2) Adjusted to reflect the sale of 1,750,000  shares of Common Stock offered by
    the Company  hereby at an assumed  public  offering price of $3.00 per share
    and the  receipt  of the net  proceeds  therefrom.  See  "Use of  Proceeds."

                                 ---------------
</FN>
</TABLE>

                                      -6-

<PAGE>


                                  RISK FACTORS

         In  evaluating  the Company  and its  business,  prospective  investors
should  carefully  consider the following  risk factors in addition to the other
information included in this Prospectus.  Because an investment in the Company's
Common Stock involves a high degree of risk,  only investors who can accommodate
such risk,  including a complete loss of their  investment,  should purchase the
Common Stock offered hereby.

         This Prospectus contains forward-looking  statements within the meaning
of Section 27A of the Securities Act of 1933 (the "Securities  Act") and Section
21E of the Exchange Act, including, without limitation, statements regarding the
Company's expectations,  beliefs,  intentions or future strategies.  All forward
looking statements included in this document are based on information  available
to the Company on the date  hereof,  and the Company  assumes no  obligation  to
update  any  such  forward  looking  statements.  Actual  results  could  differ
materially from those projected in the forward-looking statements as a result of
the risk  factors  set  forth  below.  In  evaluating  the  Company's  business,
prospective  investors should  carefully  consider the following risk factors in
addition to the other  information  set forth herein or  incorporated  herein by
reference.

DEVELOPMENT  STAGE  COMPANY;  UNCERTAINTY  OF  PRODUCT  DEVELOPMENT  AND  MARKET
ACCEPTANCE

         From its inception  until its  acquisition of Ridaura in December 1996,
Connetics  was a  development  stage  company.  Except for  Ridaura,  all of the
Company's products are in clinical or preclinical  development,  and no revenues
had  been  generated  from  products  until  December  1996,  when  the  Company
recognized  $428,000 in December  product  revenues from Ridaura.  To date,  the
Company's   resources  have  been  primarily   dedicated  to  the  research  and
development  of products  that the Company has  in-licensed  from  Genentech and
others.  Although  the  Company  believes  it has the  expertise  to develop and
commercialize such products, any or all of the Company's products may fail to be
effective  or prove to have  undesirable  and  unintended  side effects or other
characteristics  that may prevent their development or regulatory  approval,  or
limit their commercial use. For instance,  in August 1997 the Company  announced
results from a Phase III trial of gamma  interferon  for the treatment of atopic
dermatitis.  The results  indicated  that the product did not show an acceptable
therapeutic  response with respect to the primary  clinical  endpoint,  and as a
result, the Company suspended plans to submit a biological  license  application
for gamma  interferon for the treatment of atopic  dermatitis,  pending complete
analysis of the data from the trial  (which is expected to be  completed  by the
end of 1997).

         There  can be no  assurance  that  the  Company,  or its  collaborative
partners,  will be permitted to undertake human clinical trials for any of their
development  products not currently in clinical  trials or, if  permitted,  that
such products will be demonstrated to be safe and effective. In addition,  there
can be no assurance that any of the Company's  products under  development  will
obtain  approval  from  the  FDA  or  equivalent  foreign  authorities  for  any
indication  or that an approved  compound  will be capable of being  produced in
commercial quantities at reasonable costs and successfully  marketed.  Products,
if any, resulting from the Company's  research and development  programs are not
expected to be commercially  available for several years.  Even if such products
become commercially  available,  there can be no assurance that the Company will
be able to gain satisfactory market acceptance for such products.

LIMITED   OPERATING   HISTORY;   HISTORY  OF  LOSSES;   UNCERTAINTY   OF  FUTURE
PROFITABILITY

         Due to its  limited  operating  history,  the Company is subject to the
uncertainties   and  risks   associated   with  any  new  business.   Having  no
commercialized products until the December 1996 Ridaura acquisition, the Company
has experienced operating losses every year since its incorporation.  Net losses
for the fiscal  years ended  December  31, 1996 and 1995 were $18.5  million and
$10.4 million, respectively, and the Company had an accumulated deficit of $61.0
million at September  30, 1997.  Notwithstanding  the Ridaura  acquisition,  the
Company  expects  to incur  increasing  operating  losses  for at least the next
several years.  The amount of net losses and the time required by the Company to
reach  profitability  are uncertain.  There can be no assurance that the Company
will ever be able to generate revenue from its products now under development or
achieve profitability on a sustained basis.

                                      -7-
<PAGE>

UNPREDICTABILITY OF CONDUCTING PRECLINICAL AND CLINICAL TRIALS

         The Company is conducting a Phase I/II  clinical  trial of TCR Vaccines
for the  treatment  of  multiple  sclerosis,  a Phase I  clinical  trial  of TCR
Vaccines for the  treatment  of  rheumatoid  arthritis  and a Phase II trial for
keloids. There can be no assurance that the Company will be able to successfully
complete its ongoing clinical trials or commence any future trials. In addition,
there can be no assurance  that the Company will meet its  development  schedule
for any of its products in  development.  If the Company were unable to commence
clinical  trials as planned,  complete the clinical  trials or  demonstrate  the
safety and efficacy of its products, the Company's business, financial condition
and results of  operations  would be  materially  and  adversely  affected.  For
instance, in August 1997 the Company announced results from a Phase III trial of
gamma interferon for the treatment of atopic  dermatitis.  The results indicated
that the product did not show an acceptable therapeutic response with respect to
the primary clinical  endpoint,  and as a result, the Company suspended plans to
submit a biological  license  application for gamma interferon for the treatment
of  atopic  dermatitis.  Even if a  product  from  the  Company's  research  and
development programs or any other therapeutic product is successfully  developed
according to plans,  there can be no assurance it will be approved by the FDA on
a timely basis or at all.

         In addition,  because the Company will,  in a number of cases,  rely on
its  contractual  rights to  access  data  collected  by others in phases of its
clinical trials, the Company is dependent on the continued  satisfaction by such
parties' of their  contractual  obligations to provide such access and cooperate
with the Company in the execution of successful  filings with the FDA. There can
be no  assurance  that the FDA will permit such  reliance.  If the Company  were
unable to rely on clinical data collected by others, the Company may be required
to repeat clinical trials,  which could significantly  delay  commercialization,
and require significantly greater capital.

         Before obtaining regulatory approvals for the commercial sale of any of
its products under development, the Company must demonstrate through preclinical
studies and clinical  trials that the product is safe and efficacious for use in
the target indication for which approval is sought. The results from preclinical
studies and early clinical  trials may not be predictive of results that will be
obtained in later-stage testing and there can be no assurance that the Company's
future clinical trials will  demonstrate the safety and efficacy of any products
or will result in  approval to market  products.  A number of  companies  in the
biotechnology  industry have suffered  significant setbacks in advanced clinical
trials, even after promising results from earlier trials.

         The rate of completion of the  Company's  clinical  trials is dependent
upon, among other factors, the rate of patient enrollment. Patient enrollment is
a function of many factors,  including the size of the patient  population,  the
nature of the  protocol,  the  proximity  of patients to clinical  sites and the
eligibility  criteria for the study.  Delays in planned  patient  enrollment may
result in increased costs and delays, which could have a material adverse effect
on the Company.

FUTURE CAPITAL  REQUIREMENTS  AND  UNCERTAINTY OF FUTURE  FUNDING;  DILUTIVE AND
OTHER EFFECTS OF EQUITY LINE AGREEMENT

         The Company  expects  that its current  cash and cash  equivalents  and
short-term  investments,  will be sufficient  to fund the  Company's  operations
through the second  quarter of 1998.  If the Company is unable to complete  this
offering or obtain  other  financing  by mid-1998,  the  Company's  business and
financial condition may be materially and adversely affected.

         In addition, the development of the Company's products will require the
commitment of substantial  resources to conduct the time-consuming  research and
development,  clinical studies and regulatory  activities necessary to bring any
potential medical product to market and to establish  production,  marketing and
sales capabilities.  The Company will need to raise substantial additional funds
for these  purposes.  The  Company  may seek  such  additional  funding  through
collaborative  arrangements and through public or private financings,  including
equity  financings.  The  issuance  of the Shares  covered by this  Registration
Statement,  as well as any additional  equity financing,  if available,  will be
dilutive to stockholders and any debt financing, if available,  may restrict the
Company's  ability to pay  dividends on its capital stock or the manner in which
the Company conducts its business.  Under the terms of an equity line agreement,
the Company has  secured an equity line that  potentially  allows the

                                      -8-

<PAGE>

Company to raise up to $25 million from a certain institutional  investor over a
three-year  period beginning on December 1, 1997;  however,  this equity line is
currently unavailable to the Company since the Company does not currently meet a
requirement  that the trading  price for its Common  Stock be at least $7.00 per
share. Other than this equity line, the Company currently has no commitments for
any additional financings and there can be no assurance that any such financings
will be  available  to the  Company  or that  adequate  funds for the  Company's
operations,  whether from financial markets, collaborative or other arrangements
with corporate partners or from other sources,  will be available when needed or
on terms attractive to the Company. The inability to obtain sufficient funds may
require  the  Company  to  delay,  scale  back or  eliminate  some or all of its
research  and  product  development  programs,  to limit  the  marketing  of its
products or to license  third  parties the rights to  commercialize  products or
technologies that the Company would otherwise seek to develop and market itself.

         While the equity line arrangement  discussed above may help provide the
Company with additional  future  financing,  the sale of shares  thereunder will
have a dilutive impact on other  stockholders of the Company.  As a result,  the
market price of the  Company's  Common Stock could be  materially  and adversely
affected,  and if the Company is profitable,  the Company's net income per share
could be materially  decreased in future periods. In addition,  the shares to be
issued  under the Equity Line  Agreement  will be issued at a discount (of up to
15%) to the  then-prevailing  market price of the Company's Common Stock.  These
discounted  sales could have an immediate  adverse effect on the market price of
the Company's  Common Stock.  The Company also has an obligation to register the
shares to be issued  under the equity  line  before the start of the  commitment
period;  therefore,  the  shares  sold  under the  Equity  Line  Agreement  will
generally be eligible for immediate resale, which could further adversely affect
the Company's  stock price.  Finally,  the equity line  arrangement  will not be
available to the Company if its trading  price remains below $7.00 per share and
certain other pricing conditions are not met, which could require the Company to
seek funds from other sources (with the attendant  risk factors set forth in the
preceding paragraph).

         As a commitment fee to the equity line investor, the Company has issued
a  five-year  warrant  exercisable  for  250,000  shares of  Common  Stock at an
exercise  price of $8.25 per  share.  On each of the  first,  second,  and third
anniversaries of the beginning of the equity line commitment period, the Company
will issue the equity line investor an additional  five-year warrant exercisable
for a number of shares  based on the  amount of the  equity  line  unused by the
Company  in the  preceding  year (up to a maximum of $25,000 in value of warrant
shares if the Company has not drawn any amount  under the equity line during the
year and decreasing to zero to the extent the Company has drawn down up to $8.33
million  during  the year).  The  Company is  obligated  to file a  registration
statement  covering the resale of the shares  issuable upon the exercise of such
additional  warrants.  The issuance and exercise of any such additional warrants
would have a dilutive  effect on the  Company's  stockholders  and could have an
adverse effect on the Company's  stock price,  as could the resale of the shares
acquired thereunder.

POTENTIAL FLUCTUATIONS IN OPERATING RESULTS

         The Company had no revenues  from  products  from its  inception  until
December 1996,  when it recognized  $428,000 in December  product  revenues from
Ridaura. As Ridaura revenues continue,  there can be no assurance that growth in
Ridaura  revenues  will  be  achieved,  that  current  revenue  levels  will  be
maintained, or that the Company will ever be profitable on a quarterly or annual
basis in the future.  As noted above, the Company expects to incur quarterly and
annual  operating  losses for at least the next  several  years.  The  Company's
quarterly and annual operating results may fluctuate significantly in the future
depending  on such  factors as the timing and  shipment of  significant  Ridaura
orders,  if any, changes in pricing policies by the Company and its competitors,
the timing and market acceptance of any new products  introduced by the Company,
the mix of  distribution  channels  through which Ridaura and other products (if
any) are sold, and the Company's inability to obtain sufficient supplies for its
products. In response to competitive pressures or new product introductions, the
Company may take  certain  pricing or other  actions that could  materially  and
adversely affect the Company's operating results.

                                      -9-

<PAGE>


MANAGEMENT  OF  RIDAURA  PRODUCT;   UNCERTAINTY  OF  FUTURE  RIDAURA   REVENUES;
OFF-PATENT STATUS OF RIDAURA

         The Company's  success will depend in part on its ability to manage the
marketing  and sales of Ridaura.  SmithKline  is  continuing  to manage  certain
distribution operations through 1997. Prior to the end of 1997, the Company will
be required to take over distribution.  The Company is currently  establishing a
relationship  with a distribution  company;  however,  there can be no assurance
that such  relationship  will be finalized or that the  prospective  distributor
will be prepared to take over distribution  functions in a timely manner. If the
Company is unable to maintain  sufficient  personnel with the appropriate levels
of  experience  to  manage  this  function,  or if  the  Company  is  unable  to
effectively  manage the  integration of its rights to Ridaura into the Company's
product  line,  the  Company's  business,  financial  condition  and  results of
operations could be materially and adversely affected. In addition, there can be
no assurance  that the  Company's  Ridaura  revenues  will equal or exceed those
achieved by  SmithKline  over the last  several  years.  The  Company's  Ridaura
revenues  through  the first nine  months of 1997 have been  somewhat  below the
Company's preliminary projections at the time of acquisition.  If the Company is
not able to  market  and sell  Ridaura  successfully,  the  Company's  business,
financial  condition and results of operations could be materially and adversely
affected. Furthermore, the primary patents for Ridaura expired in 1989 and 1992;
therefore,  the  Company  will be unable to assert  patent  infringement  claims
against a third party  marketing the same product under a different  trade name,
which could have a material adverse effect on the Company's business,  financial
condition, and results of operations.

POTENTIAL EFFECTS OF GUARANTEE OF VALUE OF SHARES ISSUED TO SMITHKLINE

         In  connection  with its  acquisition  of U.S. and  Canadian  rights to
Ridaura in December  1996,  the Company issued 637,733 shares of Common Stock to
SmithKline  Beecham  Properties,  Inc.  ("SBP").  The total  value of the shares
issued to SBP is required to be $9.0 million on December  31,  1997;  to achieve
such value,  the Company may be obligated to issue  additional  shares to SBP on
such date, or may repurchase a portion of the originally-issued shares to reduce
the  market  value of the  remaining  shares to $9.0  million.  In the event the
Company is required to issue a substantial  number of additional  shares to SBP,
such  issuance  will have a  dilutive  impact on the other  stockholders  of the
Company.  As a result,  the market price of the Company's  Common Stock could be
materially and adversely affected, and if the Company is profitable, the Company
net  income  per share  could be  materially  decreased  in future  periods.  In
addition,  SBP currently owns  approximately  7.0% of the Company's  outstanding
shares of Common Stock. An additional issuance of a substantial number of shares
to SBP  would  increase  SBP's  ownership  percentage  and  give  SBP  increased
influence in matters requiring a stockholder vote, such as electing directors or
approving a merger or sale of the Company.  Given the  Company's  current  stock
price, it is likely that the Company will need to issue additional shares to SBP
on December 31, 1997 to achieve the $9.0 million value.

         Under the rules of the Nasdaq Stock Market,  in the event that a second
issuance  to SBP would  result in SBP  receiving  more than 19.9% or more of the
Company's outstanding Common Stock as of December 30, 1996, the Company would be
required  to obtain  approval  of the  Company's  stockholders  for the  overall
issuance  of  shares to SBP in the  event  SBP does not  agree to  postpone  the
transaction  date beyond December 31, 1997, or otherwise modify the agreement to
result in fewer shares being issued.  Due to the  Company's  current stock price
and the Nasdaq rules, there is a substantial likelihood that the Company will be
unable to issue the full amount of shares  otherwise  issuable to SBP,  and as a
result,  the Company will have to seek the approval of its  stockholders for the
overall share issuance to SBP at its 1998 annual stockholders'  meeting. If such
approval is not obtained by the Company by December  1998,  SBP has the right to
receive the cash value of the  required  second  issuance.  Such a cash  payment
would divert the Company's  available  liquid  resources away from the Company's
operations and development programs,  which could have a material adverse effect
on the  Company's  business  and its  results of  operations.  The  Company  has
initiated  discussions  with SBP  regarding  this  matter,  but  there can be no
assurance as to any outcome of such discussions

POSSIBLE FUTURE PRODUCT ACQUISITIONS

         A significant  part of the Company's  overall strategy is to in-license
or  acquire  additional  marketed  or late  stage  development  products  in its
targeted  therapeutic  areas.  The 1996  acquisitions of rights to Betamethasone

                                      -10-

<PAGE>


mousse and Ridaura reflect this strategy.  Future product acquisitions,  if any,
may require  substantial  additional  funds (i) for the initial  acquisition  of
rights to these products and (ii) for the steps necessary to obtain FDA approval
for the product and to market, sell and distribute the products successfully.  A
portion of the funds needed to acquire,  develop and market any new products may
come from the Company's existing cash and short-term investments;  in such case,
fewer resources will be available to the Company's current products and clinical
programs,  which could have a material adverse effect on the Company's business,
financial conditions and results of operations.  Alternatively,  the Company may
seek to raise substantial additional funds for new product acquisitions.

         As discussed above under "Future Capital  Requirements  and Uncertainty
of Future  Funding,"  the  Company  may seek  such  additional  funding  through
collaborative  arrangements and through public or private financings,  including
equity  financings.  Any  additional  equity  financing,  if  available,  may be
dilutive to stockholders and any debt financing, if available,  may restrict the
Company's  ability to pay  dividends on its capital stock or the manner in which
the  Company  conducts  business.  In  addition,  any  acquisition  of rights to
additional  products that are not presently approved by the FDA will require the
commitment  of  substantial  resources  to  conduct  the  research  development,
clinical  studies and  regulatory  activities  necessary to bring such potential
product to market. If the  newly-acquired  product is already approved for sale,
the Company will likely  assume the  marketing,  sale and  distribution  of such
product,  which may  require  the  Company  to recruit a  substantial  number of
qualified employees to perform these functions. If the Company is unable to hire
a sufficient number of employees with the appropriate  levels of experience,  or
if  the  Company  is  unable  to  effectively  manage  the  integration  of  any
newly-acquired products into the Company's product line, the Company's business,
financial  condition and results of operations could be materially and adversely
affected.  Finally, any newly-acquired products may not achieve the marketing or
therapeutic  success expected of it by the Company,  industry analysts or others
at  the  time  of  acquisition.  See  "--  Management  of  Ridaura  Acquisition;
Uncertainty of Future Ridaura Revenues; Off-Patent Status of Ridaura."

UNCERTAINTIES OF REGULATORY APPROVAL; GOVERNMENT REGULATION

         The production and marketing of the Company's  products and its ongoing
research  and  development  activities  are  subject to  regulation  by numerous
governmental  authorities  in the United  States and other  countries.  Prior to
marketing,  any drug developed by the Company must undergo rigorous  preclinical
and clinical  testing and an extensive  regulatory  approval process mandated by
the FDA and equivalent foreign authorities. These processes can take a number of
years and require the expenditure of substantial resources.  The Company is also
subject to regulations  under the food and drug statutes and  regulations of the
State of California.

         Obtaining such  approvals and  completing  such testing is a costly and
time-consuming  process and approval may not be ultimately obtained.  The length
of the FDA review period varies  considerably  as does the amount of preclinical
and clinical data required to demonstrate  the safety and efficacy of a specific
product.  The Company may also decide to replace the  compounds  in testing with
modified  or  optimized  compounds,  thus  extending  the  testing  process.  In
addition,  delays or  rejections  may be  encountered  based upon changes in FDA
policy during the period of product  development  and FDA  regulatory  review of
each submitted new drug  application  or product  license  application.  Similar
delays may also be  encountered  in other  countries.  There can be no assurance
that even after such time and expenditures, regulatory approval will be obtained
for any products developed by the Company.  If regulatory  approval of a product
is granted, such approval may entail limitations on the indicated uses for which
the  product  may be  marketed.  Further,  even if such  regulatory  approval is
obtained,  the  FDA  will  require  post-marketing  reporting  and  may  require
surveillance programs to monitor the usage or side effects of each drug product.
A marketed  product,  its  manufacturer  and its  manufacturing  facilities  are
subject to continual  review and periodic  inspections,  and later  discovery of
previously unknown problems with a product,  manufacturer or facility may result
in  restrictions  on  such  product  or  manufacturer,   potentially   including
withdrawal of the product from the market. In addition, a failure to comply with
FDA  requirements for  manufacturing,  labeling,  advertising,  recordkeeping or
reporting  of adverse  events and other  information  may result in  enforcement
actions  including,  but not  limited to,  recalls,  seizures,  injunctions  and
criminal prosecution.

         Government  regulation in the United States or in foreign countries may
delay marketing of the Company's potential products for years, may impose costly
procedures  upon the Company and may furnish a  competitive  advantage to larger
companies that may 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 or at all. A delay in obtaining or a failure to obtain
such approvals  would adversely  affect the marketing of any potential  products

                                      -11-

<PAGE>
developed by the Company and the Company's liquidity and capital resources.  The
FDA regulatory  process is currently under  substantial  revision as a result of
recently-enacted  legislation, and as a result, government regulation may become
more or less restrictive in the future.

PATENTS AND PROPRIETARY RIGHTS

         The  Company's  success will depend in part on the ability of Connetics
and its licensors to obtain  patent  protection  for the Company's  products and
processes,  to preserve its trade secrets, and to operate without infringing the
proprietary  rights  of  third  parties.  The  Company  owns,  controls  or  has
exclusively  licensed  pending  applications  and/or  issued  patents  worldwide
relating  to the  technology  of all  three  of its  major  programs  as well as
technology in the earlier stages of research.

         There has been increasing  litigation in the biomedical,  biotechnology
and pharmaceutical  industries with respect to the manufacture,  use and sale of
new therapeutic  products that are the subject of conflicting patent rights. The
validity  and  breadth  of  claims  in   biomedical/pharmaceutical/biotechnology
patents involve complex factual and legal issues for which no consistent  policy
has emerged, and therefore,  are highly uncertain.  Moreover, the patent laws of
foreign countries differ from those of the U.S. and the degree of protection, if
any,  afforded by foreign patents may,  therefore,  be different.  In Europe,  a
third  party  appeal  is  pending  from an  opposition  to a patent  application
concerning relaxin DNA; the original opposition was successfully defended by the
Company's  licensor.  No assurance can be given that any of the Company's or its
licensors'  patent  applications  will issue as patents or that any such  issued
patents  will  provide a  competitive  advantage  to the  Company or will not be
successfully challenged or circumvented by its competitors.  In addition, others
may hold or receive  patents or file patent  applications  that  contain  claims
having a scope that  covers  products  or  processes  made,  used or sold by the
Company. In the event that any claims of third-party patents are upheld as valid
and  enforceable  with respect to a product or process made, used or sold by the
Company,  the Company  could be prevented  from  practicing  the subject  matter
claimed in such patents or could be required to obtain  licenses or redesign its
products or processes to avoid  infringement and could be liable to pay damages.
There  can be no  assurance  that  such  licenses  would  be  available  or,  if
available,  would be on commercially reasonable terms, or that the Company would
be  successful  in any attempt to redesign  its  products or  processes to avoid
infringement.

         Connetics  has been  awarded  U.S.  Patent No.  5,614,192  covering its
proprietary  TCR  Vaccines  technology.  The Company has become aware that third
parties  have  also  obtained  patents  relating  to  TCR  Vaccines  technology,
including a U.S. patent issued to Immune Response Corporation on March 18, 1997.
With regard to such patents as are known to the Company and its patent  counsel,
the Company  believes such patents'  claims would be found either invalid or not
infringed if asserted  against the proposed TCR Vaccines.  The Company has filed
an opposition to a European  patent  claiming  compositions  for use in treating
multiple sclerosis,  covering certain TCR V beta peptides disclosed for treating
multiple  sclerosis in the Company's  own,  earlier-filed  application;  another
opposition  has been filed  against  this patent by an  independent  party.  The
Company is also aware of other pending third party patent applications which, if
issued,  might be asserted  against the  Company's  TCR Vaccines and products or
processes as planned to be made,  used or sold by the  Company.  If such patents
were successfully  asserted, the Company could be required to obtain licenses or
redesign its TCR Vaccines products or processes to avoid  infringement and could
be  liable  to pay  damages,  or could be  prevented  from  commercializing  TCR
Vaccines. There can be no assurance that such licenses would be available or, if
available,  would be on commercially reasonable terms, or that the Company would
be  successful  in any attempt to redesign  its  products or  processes to avoid
infringement.  Even if the  Company's  patent  counsel  render  advice  that the
Company's  products  and  processes  do not infringe any valid claim under third
party  patents  relating to the TCR  Vaccines  technology,  neither they nor the
Company can assure that no third party will commence  litigation to enforce such
patents, or that the Company will not incur substantial expenses or that it will
prevail in any patent litigation.  Moreover, patent applications in the U.S. are
maintained  in secrecy  until  issue,  and  publication  of  discoveries  in the
scientific  or patent  literature  often lag behind actual  discoveries,  so the
Company cannot be certain that it is aware of all potentially  relevant  pending
applications  and it is not possible to predict with any  certainty the scope of
claims  that could  issue from such a third  party's  pending  application.  The
Company anticipates that an interference will be declared between one or more of
its TCR Peptide  technology patent  applications and those of one or more of its
competitors including the above-referenced patent to

                                      -12-

<PAGE>


Immune  Response  Corporation  to determine  priority of invention,  which could
result in  substantial  cost to the  Company  even if the  eventual  outcome  is
favorable.  It is not possible to know in advance the invention  dates that such
other  parties may be able to prove,  so the Company  cannot know whether its or
its licensors'  inventors are the first for inventions  covered by their pending
patent  applications  or that it or its licensors  were the first to file patent
applications for such inventions.  A judgment adverse to the Company in any such
patent  interference,  litigation or other proceeding could materially adversely
affect the Company's business, financial condition and results of operation, and
its expense may be substantial whether or not the Company is successful.

         Connetics also relies on trade secrets and  proprietary  know-how.  The
Company  requires each of its employees,  consultants  and advisors to execute a
confidentiality  agreement providing that all proprietary  information developed
or made known to the individual  during the course of the  relationship  will be
kept confidential and not used or disclosed to third parties except in specified
circumstances.  The agreements also provide that all inventions  conceived by an
employee (or  consultant or advisor to the extent  appropriate  for the services
provided) during the course of the relationship  shall be the exclusive property
of the Company,  other than  inventions  unrelated to the Company and  developed
entirely on the individual's own time. There can be no assurance,  however, that
these  agreements will provide  meaningful  protection or adequate  remedies for
misappropriation of the Company's trade secrets in the event of unauthorized use
or disclosure of such information.

DEPENDENCE ON CONTRACT MANUFACTURERS AND SUPPLIERS

         The Company  currently has no manufacturing  facilities for clinical or
commercial  production  of any of its products,  nor does the Company  intend to
develop  such  capabilities  in the near  future.  The  Company's  products  for
research  and  preclinical  testing  have been  supplied  by  collaborators  and
contract  manufacturing  companies.  Relaxin has been manufactured for Connetics
under  contract  with  four  outside  vendors:   BASF   Bioresearch   Corp.  for
fermentation, Scios, Inc. for purification, Chesapeake Biological Laboratory for
filling and Tektagen,  Inc. for testing.  TCR vaccines are  manufactured for the
Company by American Peptide Company and Multiple Peptide Systems. The Company is
in  discussions  with  additional  manufacturers  who can supply Relaxin and TCR
Vaccines for clinical and commercial uses. Ridaura is manufactured by SmithKline
(in final finished package form) under an agreement with an initial term through
December  2001.  Betamethasone  mousse  is  manufactured  for  Connetics  by CCL
Pharmaceuticals.  Gamma interferon is manufactured by Genentech and Parke-Davis.
If  the  Company  is  unable  to  contract  for  manufacturing  capabilities  on
acceptable  terms,  the  Company's  ability  to  conduct  preclinical  and human
clinical  testing  will  be  adversely  affected,  resulting  in  the  delay  of
submission of products for regulatory approval and initiation of new development
programs,  which in turn  could  impair  materially  the  Company's  competitive
position  and  the  possibility  of  the  Company  achieving  profitability.  In
addition,  some materials  used in the Company's  products may be available only
from sole suppliers. Although neither the Company nor its contract manufacturers
has  experienced  difficulty  acquiring  materials  for the  manufacture  of its
products for clinical  trials,  no assurance can be given that  interruptions in
supplies  will not occur in the  future,  which  could have a  material  adverse
effect on the Company's  ability to manufacture its products.  There can also be
no assurance that the Company will be able to manufacture any of its products on
a commercial  scale or at a competitive  cost or in sufficient  quantities.  The
Company currently is seeking additional clinical and commercial suppliers. There
is no assurance that additional suppliers will be engaged by the Company or that
the current  manufacturers of relaxin can supply sufficient clinical quantities.
Failure to obtain  sufficient  clinical or  commercial  quantities of relaxin or
other products at acceptable  terms would have a material  adverse impact on the
Company's  attempts to complete its clinical trials, and obtain approval for and
commercialize its products.

COMPETITION AND TECHNOLOGICAL CHANGE

         Other products and therapies currently exist on the market or are under
development  that could  compete  directly  with some of the  products  that the
Company  is  marketing,  or  seeking  to  develop  and  market.  There can be no
assurance  that  the  Company's  products,   even  if  successfully  tested  and
developed,  will be adopted by physicians over such other products,  or that the
Company's products will offer an economically  feasible  alternative to existing
modes of therapy  where they  exist.  In  addition,  a number of  companies  are
currently  seeking to develop new  products and  therapies  to address  diseases
involving connective tissue,  particularly in the field of rheumatoid arthritis,
and the number of the Company's competitors in these markets could increase. The
Company  intends  to

                                      -13-

<PAGE>


compete  on the  basis of the  effectiveness,  quality  and  exclusivity  of its
products,  combined with the  effectiveness  of its marketing and sales efforts.
There  can be no  assurance  that  other  products  and  therapies  will  not be
developed that will either render the Company's  proposed  products  obsolete or
will have  advantages  outweighing  those of the products and therapies that the
Company is seeking to develop.

         With regard to Ridaura,  there are numerous products on the market, and
under development,  for the treatment of rheumatoid  arthritis.  There can be no
assurance  that Ridaura will  continue to be utilized by  physicians  over other
rheumatoid  arthritis  products,  or  that  Ridaura  will  continue  to  offer a
cost-effective  alternative to competing  therapies.  In addition,  although the
Company  believes  that  there will be a  continued  role for  products  such as
Ridaura,  the market for rheumatoid  arthritis will likely change based upon new
product  introductions,  which  could  have a  material  adverse  effect  on the
Company's sales of Ridaura.

         Many of the Company's existing or potential  competitors,  particularly
large pharmaceutical companies, have substantially greater financial,  technical
and human  resources than the Company.  In addition,  many of these  competitors
have more  collective  experience  than the Company in  undertaking  preclinical
testing and human clinical trials of new  pharmaceutical  products and obtaining
regulatory  approvals  for  therapeutic  products.  Accordingly,  the  Company's
competitors may succeed in obtaining FDA approval for products more rapidly than
the Company.

PRODUCT LIABILITY AND AVAILABILITY OF INSURANCE

         The  Company  faces an  inherent  business  risk of exposure to product
liability  claims  in the  event  that the use of its  technology  or  potential
products is alleged to have resulted in adverse  effects.  Such claims,  even if
successfully  defended by the Company,  could injure the  Company's  reputation.
While the Company has taken,  and intends to continue to take,  what it believes
are appropriate  precautions to minimize  exposure to product  liability claims,
there can be no assurance  that it will avoid  liability.  The Company  believes
that it possesses  product  liability  and general  liability  and certain other
types of insurance  customarily obtained by business  organizations of its type.
The Company  intends to  maintain  insurance  against  product  liability  risks
associated  with the  testing,  manufacturing  and  marketing  of its  products.
However, there can be no assurance that it will be able to obtain such insurance
in the  future,  or  that  if  obtained,  such  insurance  will  be  sufficient.
Consequently,  a  product  liability  claim  or other  claims  with  respect  to
uninsured  liabilities or in excess of insured liabilities could have a material
adverse effect on the business or financial condition of the Company.

POTENTIAL EFFECTS OF OFFERING ON THE COMPANY'S STOCK PRICE

         The Common Stock offered hereby represents  approximately  15.8% of the
Company's  total  outstanding  Common Stock as of November 14, 1997. The Company
has no ability to control the timing or volume of resales of the Shares.  If all
or a substantial  portion of the Shares offered hereby are resold within a short
period  of time,  the  market  price for the  Company's  Common  Stock  could be
materially and adversely affected.

DEPENDENCE ON KEY PERSONNEL

         The Company is dependent on the principal members of its scientific and
management  staffs  (including  Thomas  G.  Wiggans,  its  President  and  Chief
Executive  Officer),  the loss of whose services might impede the achievement of
development objectives.  The Company does not maintain "key person" insurance on
any of these individuals.  In addition,  the Company's  potentially rapid growth
and expansion into areas and activities requiring additional expertise,  such as
clinical trials,  governmental  approvals,  manufacturing,  sales and marketing,
will increase  burdens on the Company's  management,  operational  and financial
resources.  Recruiting  and  retaining  management,  operational  personnel  and
qualified  scientific  personnel to perform research and development work in the
future will be critical to the Company's success.  Although the Company believes
it will  continue to be  successful  in  attracting  and  retaining  skilled and
experienced management and operational and scientific personnel, there can be no
assurance  that the Company will be able to attract and retain such personnel on
acceptable  terms  given  the  competition  for such  personnel  among  numerous
pharmaceutical and biotechnology companies, universities and other institutions.

                                      -14-

<PAGE>

UNCERTAINTY OF PHARMACEUTICAL PRICING AND REIMBURSEMENT;  HEALTH CARE REFORM AND
RELATED MATTERS

         The levels of revenues and  profitability of  pharmaceutical  companies
may be affected by the continuing efforts of governmental and third party payors
to contain or reduce the costs of health care through various means. In both the
United States and elsewhere, sales of prescription pharmaceuticals are dependent
in part on the  availability of  reimbursement  to the consumer from third party
payors,  such as government,  employers and private insurance plans. Third party
payors are  increasingly  seeking to reduce  the costs of medical  products  and
services and looking for improved  cost/benefit  relationships from the products
and  services  they buy. If the  Company or one of its  potential  marketing  or
strategic alliance partners succeeds in bringing one or more products based upon
the  Company's  technology  to the market,  there can be no  assurance of market
acceptance of the Company's  products or that these  products will be considered
cost-effective  and that reimbursement to the consumer will be available or will
be  sufficient  to allow the Company or its  partner to sell such  products on a
competitive  basis.  Any inability of the Company or its  potential  partners to
sell products  developed  using the Company's  technology or  in-licensed by the
Company on a  competitive  basis  would have a  material  adverse  effect on the
Company's business.

ENVIRONMENT AND CONTROLLED USE OF HAZARDOUS MATERIALS

         The Company is subject to federal, state and local laws and regulations
governing the use, generation,  manufacture,  storage,  discharge,  handling and
disposal of certain  materials and wastes used in its operations,  some of which
are classified as  "hazardous."  There can be no assurance that the Company will
not be required to incur significant costs to comply with environmental laws and
regulations  as its research  activities  are increased or that the  operations,
business and future  profitability of the Company will not be adversely affected
by current or future  environmental  laws and regulations.  Although the Company
believes that its safety procedures for handling and disposing  materials comply
with such laws and regulations,  the risk of accidental  contamination or injury
from these materials cannot be eliminated. In the event of such an accident, the
Company could be held liable for any damages that result and any such  liability
could exceed the resources of the Company.

EFFECT OF CERTAIN ANTI-TAKEOVER PROVISIONS

         The  Company's  Board of  Directors  has the  authority  to issue up to
5,000,000  shares of  undesignated  Preferred Stock and to determine the rights,
preferences,  privileges and restrictions of such shares without further vote or
action by the Company's stockholders.  The rights of the holders of Common Stock
will be subject to, and may be adversely  effected by, the rights of the holders
of any  Preferred  Stock  that may be  issued in the  future.  The  issuance  of
Preferred  Stock  could  have the effect of making it more  difficult  for third
parties to acquire a majority of the outstanding voting stock of the Company. In
April 1997, the Company's Board of Directors adopted a stockholder  rights plan,
which entitles existing stockholders of the Company to certain rights (including
the right to purchase shares of Preferred  Stock) in the event of an acquisition
of 15% or more of the  Company's  outstanding  common stock,  or an  unsolicited
tender  offer for such  shares.  The  existence  of the rights plan could delay,
prevent,  or make  more  difficult  a merger or  tender  offer or proxy  contest
involving the Company.

         In addition,  certain  provisions of the Company's  charter  documents,
including a provision eliminating the ability of stockholders to take actions by
written  consent,  and of Delaware  law could delay or make  difficult a merger,
tender offer or proxy  contest  involving  the Company.  Further,  the Company's
stock option and purchase  plans  generally  provide for the  assumption of such
plans or  substitution  of an equivalent  option of a successor  corporation or,
alternatively,  at the discretion of the Board of Directors, exercise of some or
all of the option stock, including non-vested shares, or acceleration of vesting
of shares issued  pursuant to stock grants,  upon a change of control or similar
event.

                                      -15-

<PAGE>


POSSIBLE VOLATILITY OF STOCK PRICE; LACK OF DIVIDENDS

         Prior to February  1996 there was no public market for the Common Stock
of the Company.  There can be no assurance  that an active  trading  market will
continue to be  sustained  or that the market price of the Common Stock will not
decline below the its present market price.  The market prices for securities of
biotechnology  companies have been highly volatile.  Announcements regarding the
results of  regulatory  approval  filings,  clinical  studies or other  testing,
technological  innovations  or new  commercial  products  by the  Company or its
competitors, government regulations,  developments concerning proprietary rights
or public  concern as to safety of  technology  have  historically  had, and are
expected to continue to have, a  significant  impact on the market prices of the
stocks of biotechnology  companies.  For instance, in August 1997, the Company's
trading price dropped approximately 46.7% the day the Company announced negative
results from its Phase III clinical trial of gamma  interferon for the treatment
of atopic  dermatitis.  The  trading  price of the  Common  Stock  could also be
subject to  significant  fluctuations  in response to  variations  in  operating
results.  In addition,  the Company has never paid cash dividends on its capital
stock and does not anticipate  paying cash dividends in the foreseeable  future,
but instead intends to retain future earnings for  reinvestment in its business.
The Company's  credit  agreement  requires the approval of the Company's bank to
declare or pay cash dividends.

                                      -16-

<PAGE>


                                   THE COMPANY

         The Company was incorporated in Delaware in February 1993 as Connective
Therapeutics,  Inc. and changed its name to Connetics  Corporation  in May 1997.
The  Company's  principal  executive  offices are located at 3400 West  Bayshore
Road, Palo Alto, California 94303, and its telephone number is (650) 843-2800.

                                 USE OF PROCEEDS

         The net proceeds to the Company from the sale of the  1,750,000  shares
of Common Stock offered hereby (at an assumed offering price of $3.00 per share)
are estimated to be $4,950,000 after deducting  estimated  offering  expenses of
$300,000 and assuming that all shares offered hereby are sold.

         The Company  expects to use the net  proceeds,  including  the interest
thereon,  primarily to fund clinical development programs for relaxin and a high
potency  mousse  product,   to  prepare  for  a  potential   product  launch  of
betamethasone mousse and to continue research,  development and testing of other
products. After such uses, if proceeds remain available, up to $1,000,000 of the
net proceeds may be used to make a $1,000,000 payment to SmithKline due in April
1998 under a Promissory Note issued in connection with the Ridaura  acquisition.
If further proceeds are available, the Company may also use a portion of the net
proceeds to acquire or invest in businesses,  products and technologies that are
complementary  to those of the Company,  although no portion of the net proceeds
has been allocated for any specific  acquisition.  Remaining  proceeds,  if any,
will be used for working capital,  capital  expenditures  and general  corporate
purposes.  Pending  such  uses,  the  Company  intends  to invest  such funds in
short-term, interest-bearing obligations of investment grade.

         The Company  anticipates that its existing capital resources,  together
with the net proceeds of this  offering,  will enable it to maintain its current
and planned operations through the fourth quarter of 1998. The Company's capital
requirements may vary, however, depending upon numerous factors, including those
described  above.  See  "Management's   Discussion  and  Analysis  of  Financial
Condition and Results of Operations -- Liquidity and Capital Resources."

<TABLE>
                           PRICE RANGE OF COMMON STOCK

         The Company's  Common Stock  commenced  trading on the Nasdaq  National
Market  under the symbol  CNCT on  February 1, 1996.  The  following  table sets
forth, for the periods indicated, the high and low sales prices per share of the
Common Stock as reported on the Nasdaq National Market:

<CAPTION>
                     1997                                                                     High            Low
<S>                  <C>                                                                     <C>            <C>
   
                     Fourth Quarter (through December 10, 1997)....................          $ 4.25         $ 2.56
                     Third Quarter.................................................            9.50           3.50
                     Second Quarter................................................            7.88           6.00
                     First Quarter.................................................            8.00           6.63
                     1996
                     Fourth Quarter................................................          $ 8.75         $ 6.50
                     Third Quarter.................................................           10.25           5.75
                     Second Quarter................................................           11.00           7.75
                     First Quarter (from February 1, 1996).........................           11.25           8.00
</TABLE>


         The last reported sale price of the Common Stock on the Nasdaq National
Market on  December  10,  1997 was $2.75.  As of October  31,  1997,  there were
approximately 191 stockholders of record of the Company's Common Stock.
    

                                      -17-

<PAGE>



                                 DIVIDEND POLICY

         The Company has never paid cash dividends on its capital stock and does
not anticipate  paying cash  dividends in the  foreseeable  future,  but intends
instead to retain future earnings for  reinvestment in its business.  Any future
determination  to pay cash  dividends  will be at the discretion of the Board of
Directors and will be dependent upon the Company's financial condition,  results
of  operations,  capital  requirements  and such  other  factors as the Board of
Directors deems relevant.  The Company's credit agreement  requires the approval
of the Company's bank to declare or pay cash dividends.

                                      -18-

<PAGE>


<TABLE>
                                 CAPITALIZATION

         The  following  table sets forth the  capitalization  of the Company at
September  30,  1997,  as adjusted to reflect  the sale of  1,750,000  shares of
Common Stock offered hereby and the application of the net proceeds therefrom as
described under "Use of Proceeds."

<CAPTION>
                                                                                          September 30, 1997
                                                                                          ------------------
                                                                                        Actual      As Adjusted
                                                                                        ------      -----------
                                                                                            (In thousands)

<S>                                                                                     <C>           <C>
Noncurrent portion of capital lease obligations, capital loans and long-term debt..     $ 1,302       $ 1,302
Other long-term liabilities........................................................       6,187         6,187
Redeemable convertible preferred stock, Series A...................................       1,650         1,650
Stockholders' equity:
   Preferred Stock,  $0.001 par value;  5,000,000 shares authorized;  redeemable
   convertible  Preferred  Stock,  Series A, 165 shares issued and  outstanding,
   actual;  5,000,000  shares Series B  Participating  Preferred  Stock,  90,000
   shares designated, no shares issued and outstanding, as adjusted................          --            --
   Common Stock, $0.001 par value; 50,000,000 shares authorized, 11,075,654 shares
   issued and outstanding, actual; and 12,825,654 shares issued and outstanding, as          11            13
   adjusted (1)....................................................................
Additional paid in capital.........................................................      72,348        77,296
Notes receivable from stockholders.................................................         (75)          (75)
Deferred compensation..............................................................        (891)         (891)
Deficit accumulated during the development stage...................................     (60,963)      (60,963)
Treasury stock, at cost                                                                     (46)          (46)
                                                                                        -------       -------
   Total stockholders' equity......................................................      10,384        15,334
                                                                                        -------       -------
      Total capitalization.........................................................     $19,523       $24,473
                                                                                        =======       =======
<FN>
- ----------

(1)   Excludes  1,508,156  shares subject to  outstanding  options at a weighted
      average  exercise price of $4.16 per share,  215,429 shares  available for
      future  issuance  under the Company's  1994 Stock Plan as of September 30,
      1997,  and  1,289,194  shares of Common Stock  reserved for issuance  upon
      exercise  of warrants at a weighted  average  exercise  price of $8.79 per
      share.  Also excludes  75,524 shares of Common Stock reserved for issuance
      under the Company's  1995 Employee  Stock Purchase Plan and 150,000 shares
      reserved for issuance  under the Company's  1995  Directors'  Stock Option
      Plan.
</FN>
</TABLE>

                                      -19-

<PAGE>


<TABLE>
                                    DILUTION
<CAPTION>

         The net tangible  book value  (deficit) of the Company at September 30,
1997 was  $(3,403,000),  or $(0.31) per share. Net tangible book value (deficit)
per share is  determined  by dividing the net tangible book value of the Company
(total tangible assets less total liabilities) by the number of shares of Common
Stock outstanding.  Without taking into account any changes in net tangible book
value after  September  30,  1997,  other than to give effect to the sale of the
1,750,000  shares of Common Stock offered hereby (at an assumed public  offering
price of $3.00 per share) and the application of the net proceeds therefrom, the
pro forma net  tangible  book value of the Company at  September  30, 1997 would
have been $1,547,000,  or $0.12 per share. This represents an immediate increase
in net tangible  book value of $0.43 per share to existing  stockholders  and an
immediate  dilution  in net  tangible  book  value  of  $2.88  per  share to new
investors. The following table illustrates this dilution per share:


<S>                                                                                          <C>               <C>
Assumed Public offering price per share.................................................                       $3.00
  Net tangible book value (deficit) per share as of September 30, 1997..................     $(0.31)
  Increase in net tangible book value per share attributable to new investors...........       0.43
                                                                                               ----
Pro forma net tangible book value after offering........................................                        0.12
                                                                                                               -----
Dilution per share to new investors.....................................................                       $2.88
                                                                                                               =====
</TABLE>

<TABLE>
         The following table sets forth on a pro forma basis as of September 30,
1997 the differences between the number and percentage of shares of Common Stock
purchased  from the  Company,  the total  consideration  (at an  assumed  public
offering price of $3.00 per share) and percentage of total consideration paid to
the Company and the average price per share paid by existing stockholders and by
new investors:

<CAPTION>

                                              Shares Purchased           Total Consideration        Average Price
                                             Number       Percent        Amount         Percent       Per Share
                                             ------       -------        ------         -------       ---------
<S>                                         <C>                <C>     <C>                  <C>          <C>
Existing stockholders..................     11,075,654         86%     $75,314,447          93%          $6.80
New investors..........................      1,750,000         14%       5,250,000           7%           3.00
                                            ----------        ----     -----------
          Total........................     12,825,654        100%     $80,564,447         100%
                                            ==========        ====     ===========         ====
</TABLE>

         The foregoing tables do not assume the exercise of outstanding  options
or warrants.  At September 30, 1997, there were outstanding  options to purchase
1,508,156  shares of Common  Stock under the  Company's  1994 Stock  Plan,  at a
weighted average  exercise price of $4.16 per share and outstanding  warrants to
purchase  1,289,194  shares of Common Stock at a weighted average exercise price
of $8.79 per share.  In  addition,  as of September  30,  1997,  an aggregate of
335,953 shares of Common Stock were available for future issuance under the 1994
Stock Plan, the 1995 Employee Stock Purchase Plan and the 1995 Directors'  Stock
Option Plan.  To the extent that any of these  options or warrants or additional
options  or  warrants  are  exercised,  there will be  further  dilution  to new
investors.  See  "Management  --  Stock  Plans"  and  Notes 9 and 10 of Notes to
Financial Statements.

                                      -20-

<PAGE>


<TABLE>
                             SELECTED FINANCIAL DATA
               (In thousands, except share and per share amounts)

         The  following  selected  financial  data  for the  three  years  ended
December  31,  1996 and for the  period  from  inception  (February  8, 1993) to
December 31, 1993 are derived from the audited financial statements of Connetics
Corporation, which have been audited by Ernst & Young LLP, independent auditors.
The financial data for the nine month periods ended  September 30, 1997 and 1996
is  derived  from  unaudited  financial  statements.   The  unaudited  financial
statements  include all adjustments,  consisting of normal  recurring  accruals,
which Connetics  Corporation  considers necessary for a fair presentation of the
financial position and the results of operations for these periods.

         Operating  results for the nine months ended September 30, 1997 are not
necessarily  indicative  of the results that may be expected for the entire year
ending  December  31,  1997.  The data  should be read in  conjunction  with the
consolidated   financial   statements,   related  notes,   and  other  financial
information included herein.

<CAPTION>


                                            Period
                                             from
                                           inception                                                       Nine           Nine
                                          (February                                                        Months         Months
                                           8, 1993)                 Years Ended December 31,               Ended          Ended
                                          to December    --------------------------------------------     September      September
                                          31, 1993          1994             1995           1996          30, 1996       30, 1997
                                         ------------    ------------    ------------    ------------    ------------  -------------
<S>                                      <C>             <C>             <C>             <C>             <C>            <C>
Statement of Operations Data:
Product revenues                         $     --        $     --        $     --        $      428      $     --       $     5,053

Operating costs and expenses:
     Cost of product sales                     --              --              --              --              --               815
     License amortization                      --              --              --               594            --             5,344
     Research and development                   836           6,436           8,271          13,161           9,221          14,731
     General and administrative                 240           1,317           2,113           5,434           3,419           6,599
Total operating cost and expenses             1,076           7,753          10,384          19,189          12,640          27,489

Loss from operations                         (1,076)         (7,753)        (10,384)        (18,761)        (12,640)        (22,436)

Interest income (expense), net                   (2)            (97)             12             247             165            (604)

Net loss                                 $   (1,078)     $   (7,850)     $  (10,372)     $  (18,514)     $  (12,475)    $   (23,040)

Net loss per share                                                                       $    (2.71)     $    (1.91)    $     (2.31)
Shares used to calculate net loss
    per share                                                                             6,824,668       6,524,574      10,034,185
Pro forma net loss per share                                                 $(1.79)
Shares used to calculate pro forma net                                    5,778,372
    loss per share

Balance Sheet Data:
Cash, cash equivalents and short-term    $      729      $    1,287      $    9,023      $   24,554      $   20,340     $    14,140
    investments
Working capital                                (147)           (979)          5,844          14,904          15,263           1,854
Total assets                                    930           2,901          11,796          47,922          22,632          33,839
Notes payable                                  --             1,350           2,205            --              --              --
Non-current portion of capital lease
    obligations, capital loans and               13             829           4,933           3,062           3,508           1,302
    long-term debt
Other long-term liabilities (1)                --             1,293           1,262          10,858           1,184           6,187
Redeemable convertible preferred stock         --              --              --             2,000            --             1,650
Total stockholders' equity (net                 (60)         (2,919)             63          21,800          12,707          10,384
    capital deficiency)

<FN>
(1)  See Note 5 of Notes to Financial statements for a description of the Company's other long-term liabilities.
</FN>
</TABLE>

                                      -21-


<PAGE>

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

         Connetics  Corporation  acquires,  develops and markets products in the
areas of  rheumatology  and  dermatology.  The  Company  acquired  the U.S.  and
Canadian rights to Ridaura(R) (auranofin), a treatment for rheumatoid arthritis,
from SmithKline  Beecham  Corporation  and related  entities  ("SmithKline")  in
December 1996. Under a related Transitional Services Agreement,  customer orders
and distribution  for Ridaura will continue to be managed by SmithKline  through
1997. The Company's products under development include  betamethasone mousse for
the treatment of scalp psoriasis and other dermatoses;  ConXn(TM)  (relaxin) for
the treatment of scleroderma and other fibrotic disorders; T-cell Receptor (TCR)
peptide  vaccines  for  the  treatment  of  multiple  sclerosis  and  rheumatoid
arthritis;  and gamma  interferon  for the  treatment of keloids.  The Company's
stockholders   approved  a  change  of  the  Company's  name  from   "Connective
Therapeutics,  Inc." to  "Connetics  Corporation"  at its annual  meeting in May
1997.

         There can be no assurance that any of the Company's  potential products
will be successfully developed, receive the necessary regulatory approvals or be
successfully commercialized.

         The Company has financed its operations  primarily  through the private
sale and issuance of equity  securities.  Additional  cash has been  received in
connection with certain credit financing  arrangements.  To date,  substantially
all of the  Company's  expenditures  have  been  for  research  and  development
activities.  The Company has incurred  operating  losses since its inception and
had an  accumulated  deficit of $61.0 million at September 30, 1997. The Company
will require additional funds to complete the development of its products and to
fund operating  losses which are expected in the next several years.  Other than
Ridaura,  the Company does not expect its products to be commercialized  for the
next several years.

Results of Operations

Nine Months Ended September 30, 1997 and 1996

         The Company's  revenues,  derived from the sales of Ridaura,  were $5.1
million for the nine months ended September 30, 1997. The Company had no revenue
for the same periods in 1996, as all of its products were in development  stage.
The Company's  revenues from Ridaura sales to date have been somewhat  below the
Company's preliminary projections at the time of its acquisition of Ridaura.

         Under  Transitional  Services and Supply agreements  between SmithKline
and the Company,  entered into in conjunction  with the  acquisition of Ridaura,
SmithKline  will  manufacture  and supply  Ridaura in final package form through
December  2001  and  manage  distribution  of the  product,  with no  additional
consideration  for performing such services,  through December 1997. The Company
is currently in the process of finalizing a distribution  arrangement  with CORD
Logistics,  Inc.  ("CORD")  under  which CORD will  manage  customer  orders and
distribution of Ridaura and any other future  products of the Company  effective
January 1998. As a result,  the Company will begin to incur  distribution  costs
starting January 1998 currently  estimated to be approximately  three percent of
net revenue.

         The  Company's  cost of  product  sales  includes  the cost of  Ridaura
purchased from SmithKline and a percentage  royalty cost based on product sales.
For the nine months ended September 30, 1997, the Company  recorded $0.8 million
in cost of product  sales and  recorded  amortization  expense  of $5.3  million
associated  with the  acquisition of product rights to Ridaura.  No product cost
was  recorded for the nine months  ended  September  30, 1996 as the Company was
still in development stage without any revenue generating product.

         Research  and  development  expenses  were $14.7  million  for the nine
months ended September 30, 1997, compared to $9.2 million for the same period in
1996.  The $5.5  million  increase  in research  and  development  expenses  was
primarily  due to the 555 patient Phase III clinical  trial of gamma  interferon
for the treatment of atopic

                                      -22-

<PAGE>

dermatitis,  the  64-patient  Phase  II  clinical  trial  of  ConXn(TM)  for the
treatment of  scleroderma,  the  100-patient  Phase I/II  clinical  trial of TCR
peptide vaccines for the treatment of multiple  sclerosis,  the 40-patient Phase
II  clinical  trial of gamma  interferon  for the  treatment  of keloids and the
190-patient  Phase III clinical trial of betamethasone  mousse for the treatment
of scalp psoriasis, all of which commenced subsequent to June 1996. Research and
development  expenses are expected to continue to decrease over the next quarter
due to the  completion  of  current  clinical  trial  activities  including  the
suspension of any further  activities  associated with gamma  interferon for the
treatment  of  atopic  dermatitis.  However  the  decrease  could be  offset  by
unanticipated  additional expenses of on-going trials or by possible acquisition
of new technologies and products and initiation of new clinical trials.

         Selling,  general and administrative expenses increased to $6.6 million
for the nine months ended  September  30,  1997,  from $3.4 million for the same
period in 1996.  The increase was  primarily due to the  establishment  of a new
sales and marketing  organization,  costs  associated  with the  re-launching of
Ridaura, increases in personnel in the general and administrative functions, and
legal expenses associated with operating as a public company.  Selling,  general
and administrative  expenses are expected to increase primarily due to increased
staffing of the sales organization and costs associated with marketing Ridaura.

         Interest  income  decreased  to  $714,000  in  the  nine  months  ended
September  30, 1997,  from  $914,000  for the same period in 1996,  due to lower
average cash and investment balances held by the Company. Interest earned in the
future will depend on Company  funding  cycles and  prevailing  interest  rates.
Interest expense increased to $1,318,000 for the nine months ended September 30,
1997,  from  $749,000  for the same  period in 1996.  The  increase  in interest
expense during 1997 was due to imputed interest expense of $830,000 attributable
to the non-interest  bearing $11.0 million promissory note payable to SmithKline
as partial  consideration  for the  acquisition  of U.S. and Canadian  rights to
Ridaura. This was offset in part by lower interest expense associated with lower
balances  outstanding for obligations  under capital leases and loans, and notes
payable.

         The  Company  incurred a net loss of $23.0  million in the nine  months
ended  September  30, 1997,  compared  with $12.5 million for the same period in
1996.  The increase of $10.5  million in net loss was  primarily due to a higher
level of product development  activities and Ridaura-related sales and marketing
expenses,  amortization costs and imputed interest expenses. The increase in net
loss was offset in part by revenue  generated from the sale of Ridaura less cost
of product sold. The Company  expects to incur  additional  losses over the next
few years and losses are  expected to  fluctuate  from period to period based on
timing of product revenues,  clinical material purchases,  possible acquisitions
of new products and technologies, scale-up activities and clinical activities.

Years Ended December 31, 1996, 1995 and 1994

         The Company  recorded its first  revenues in December 1996, for a total
of $428,000,  due to the initial  product  sales of Ridaura.  In  addition,  the
Company also recorded  amortization cost of $594,000 in December 1996 associated
with the acquisition of product rights to Ridaura from  SmithKline.  The Company
has  determined  the  useful  life of the  asset  to be  three  years  based  on
information  regarding products currently in the Company's development pipeline,
competitive  products,  the off-patent  position of Ridaura and expected  future
revenues from Ridaura sales.

         Research and development expenses were $13.2 million,  $8.3 million and
$6.4 million for the years ended December 31, 1996, 1995 and 1994, respectively.
The  increase  in  research  and  development  expenses  in 1996  over  1995 was
primarily   attributable   to  significant   increases  in  personnel   staffing
particularly  related  to  clinical  development,  commencement  of a Phase  III
clinical  trial of gamma  interferon for the treatment of atopic  dermatitis,  a
Phase II clinical  trial of gamma  interferon  for the  treatment of keloids,  a
Phase II clinical  trial of ConXn(TM)  for the  treatment of  scleroderma  and a
Phase  I/II  clinical  trial  of TCR  Peptides  for the  treatment  of  multiple
sclerosis,  and increased outside services required to support  operations.  The
research and development  spending  increase in 1995 over 1994 was primarily due
to devoting  additional  resources  to commence the  initiation  of a Phase I/II
clinical trial of ConXn(TM) for scleroderma, the production of clinical supplies
and  increased  outside  services  required to support  operations.  The factors
contributing  to increases  in spending  were  partially  offset by decreases in
technology  acquisition  costs from $1.9 million in fiscal 1994, to $0.9 million
and $35,000 for 1995 and 1996,  respectively.  Research and development expenses
are expected to continue to increase due to continued  expansion of  development

                                      -23-

<PAGE>

activities,   including  progression  in  advanced-stage  clinical  trials,  and
possible acquisition of new technologies and products.

         General and administrative expenses were $5.4 million. $2.1 million and
$1.3 million for the year-ended December 31, 1996, 1995 and 1994,  respectively.
The  increase  in  general  and  administrative  expenses  from 1995 to 1996 was
primarily due to increased  support costs  associated with operating as a public
company  (including costs related to strengthening  the senior management team),
professional fees and expenses  associated with the acquisition of Ridaura,  and
other  business  development  expenses.  The  increase  from  1994 to  1995  was
primarily  due to  increases  in staffing  and  business  development  expenses.
General  and  administrative  expenses  are  expected  to  continue  to increase
primarily  due to expanded  business  development  efforts and the creation of a
marketing and sales organization.

         Interest  income was $1.2  million,  $0.4  million  and $38,000 for the
years ended  December 31,  1996,  1995 and 1994,  respectively.  The increase in
interest  income in 1996 over 1995 was due to higher invested cash balances from
proceeds of the Company's initial public offering and two private  placements of
equity securities.  The increase in 1995 from 1994 was due to higher balances in
cash and cash equivalents.  Interest earned in the future will depend on Company
funding cycles and prevailing interest rates. Interest expense increased to $0.9
million for the year ended December 31, 1996, from $0.4 million and $0.1 million
in 1995 and  1994,  respectively,  due to  increased  balances  outstanding  for
obligations under capital leases and loans, and notes payable.

         The Company  incurred net losses of $18.5  million,  $10.4  million and
$7.9 million for the years ended December 31, 1996, 1995 and 1994, respectively,
primarily due to its development stage activities.  The Company expects to incur
substantial additional losses over the next few years and losses are expected to
fluctuate  from period to period based on timing of product  revenues,  clinical
material  purchases,  possible  acquisitions  of new products and  technologies,
scale-up activities and clinical activities.

         For income tax purposes,  the Company had a federal net operating  loss
carryforward as of December 31, 1996, of approximately  $32.4 million  available
to offset future taxable  income,  if any. The net operating  loss  carryforward
will expire at various dates  beginning from 2008 through 2011, if not utilized.
Utilization  of  the  net  operating  losses  and  credits  may  be  subject  to
substantial annual limitation due to the "change in ownership" provisions of the
Internal  Revenue  Code  of  1986  and  similar  state  provisions.  The  annual
limitation  may result in the  expiration  of net  operating  losses and credits
before utilizations. (See Note 14 of Notes to Financial Statements)

Liquidity and Capital Resources

         The Company has  financed  its  operations  to date  primarily  through
private sales of equity securities, proceeds from its initial public offering in
February 1996 and three self-managed financings, two in December 1996 and one in
May 1997.

         Working capital decreased by $13.0 million to $1.9 million at September
30, 1997 from $14.9 million at December 31, 1996;  cash,  cash  equivalents  and
short-term  investments decreased by $10.5 million to $14.1 million at September
30, 1997 from $24.6  million at December  31, 1996.  The decrease in cash,  cash
equivalents and short-term  investments  resulted  primarily from a $3.0 million
payment to SmithKline  for rights to Ridaura made in January 1997,  $0.5 million
in consulting and legal fees  associated  with the  acquisition of Ridaura,  and
$18.7 million in operating expenses of which  approximately $9.7 million relates
to clinical  trial  activities  and $1.8 million  relates to sales and marketing
activities. Partially offsetting the decrease during the nine-month period ended
September 30, 1997 was $3.2 million cash  generated  from Ridaura  product sales
(net of product  costs) and $10.9  million cash  generated  from the sale of the
Company's common stock to certain accredited investors in May 1997. The decrease
in working capital was the result of lower cash, cash equivalents and short-term
investments, the now current portion of capital loans, long-term debt and a note
payable due to SmithKline in 1998 for rights to Ridaura, offset in part by lower
accounts  payable,  accrued process  development  expenses and higher receivable
balance.  The  decrease in accounts  payable  and  accrued  process  development
expenses of $2.5 million during the nine-month  period ended  September 30, 1997
was due to payments of $3.0  million to  SmithKline  and $0.7  million for gamma
interferon material associated with the Phase III clinical trial, offset in part
by higher clinical trial activities.

                                      -24-

<PAGE>

         Receivables  at  September  30, 1997  increased by $1.5 million to $1.9
million,  compared  with  $0.4  million  at  December  31,  1996 as a result  of
increased  sales  of  Ridaura.  Total  receivables  for the nine  months  ending
September  30, 1997 was $4.8  million of which $2.8  million has been  collected
since September 30, 1997.

         For  the  nine  months  ended  September  30,  1997,  expenditures  for
equipment and leasehold  improvement totaled $0.8 million of which approximately
$0.3 million was financed  through a capital loan  arrangement.  Total additions
for property and  equipment  for the period from  inception to December 31, 1996
totaled $2.5 million of which $2.3 million have been  financed  through  capital
lease and loan  arrangements.  At September  30, 1997,  the Company had invested
$3.3  million in property  and  equipment,  and had  approximately  $0.6 million
available for borrowing under its capital loan arrangement.

         At September 30, 1997, the Company had an aggregate of $16.3 million in
future obligations of principal payments under capital leases, loans,  long-term
debt and other obligations,  of which $8.8 million is to be paid within the next
year. On November 13, 1997,  the Company  amended a  non-interest  bearing $11.0
million  promissory note with  SmithKline.  The amendment  allows the Company to
defer the first $6.0  million  installment  payment,  originally  due in January
1998,  to April  1998,  October  1998,  and January  1999 with  payments of $1.0
million, $1.5 million and $3.5 million, respectively. The Company is required to
pay  interest on the  principal  amount  outstanding  of the $6.0  million  from
January  1, 1998  through  January  4, 1999 at prime  rate plus 2%.  The  second
installment  payment of $5.0  million  under the note,  also due  January  1999,
remains unchanged.

         The Company has a Structured Equity Line Flexible  Financing  Agreement
(the "Equity Line Agreement") with Kepler Capital LLC ("Kepler") that allows the
Company  to access up to $25  million  through  sales of its Common  Stock.  The
equity line will be  available  for a three-year  period  beginning on or before
December 1, 1997.  The Equity Line  Agreement  provides that the Company can, at
its option, obtain from $500,000 to $2,000,000 at any one time through a sale of
its Common Stock to Kepler,  subject to the satisfaction of certain  conditions,
including registration of shares for resale, minimum volume requirements,  and a
minimum trading price of $7.00 per share over a specified  period.  In addition,
the  Company  must sell  $500,000  of its Common  Stock from time to time if the
price per share exceeds  $10.00 and minimum volume  requirements  are met. Since
the  Company's  trading  price  is  currently  below  the  $7.00  minimum  price
requirement, the Company is presently unable to draw under the equity line.

         The  Company  believes  that its  existing  cash and cash  equivalents,
short-term  investments,  cash generated from the sale of Ridaura, cash expected
to be raised through this offering and funds  available  under the capital loan,
will be sufficient to fund the Company's  operating  expenses,  debt obligations
and capital requirements through the fourth quarter of 1998. If this offering is
not successful,  the Company's  currently  available financial resources will be
sufficient  to fund the  Company's  operating  expenses,  debt  obligations  and
capital  requirements  through the second quarter of 1998. The Company's  future
capital uses and requirements depend on numerous factors, including the progress
of  its  research  and  development  programs,  the  progress  of  clinical  and
advanced-stage  clinical  testing,  the time and  costs  involved  in  obtaining
regulatory  approvals,  the cost of filing,  prosecuting,  and enforcing  patent
claims and other  intellectual  property  rights,  competing  technological  and
market  developments,  the  ability of the  Company to  establish  collaborative
arrangements,  the level of product  revenues,  the possible  acquisition of new
products and technologies,  and the development of commercialization activities,
and therefore such capital uses and requirements may increase in future periods.
As a result,  the Company will  require  substantial  additional  funds prior to
reaching  profitability and may attempt to raise additional funds through equity
or debt financings,  collaborative  arrangements with corporate partners or from
other  sources.  Other  than the  Equity  Line  Agreement  (which  is  presently
unavailable),  the  Company  currently  has no  commitments  for any  additional
financings,  and there  can be no  assurance  that  additional  funding  will be
available for the Company to finance its ongoing  operations on acceptable terms
if at all. The inability to obtain  sufficient  funds may require the Company to
delay,  scale  back  or  eliminate  some  or  all of its  research  and  product
development programs, to limit the marketing of its products or to license third
parties the rights to  commercialize  products or technologies  that the Company
would otherwise seek to develop and market itself.

                                      -25-

<PAGE>


                                    BUSINESS

BACKGROUND

         Connective  tissue is composed of cells (such as  fibroblasts)  and the
extracellular  matrix  (such as  collagen-containing  fibers)  produced by these
cells.  Organs of the body such as lungs,  kidneys and skin function normally in
part because of the precise  three-dimensional  arrangement of specialized cells
within a connective tissue framework. Alterations in this framework affect organ
function.

DISEASES INVOLVING CONNECTIVE TISSUE

         Inflammation

         Inflammation  is a natural  response to tissue  injury and is necessary
for normal  healing.  During  normal wound  healing,  tissue  repair  follows an
orderly progression of immune cell infiltration,  new blood vessel formation and
connective  tissue  deposition  and  remodeling.   Under  abnormal   conditions,
inappropriate  regulation  of the  immune  cells  results  in  either  local  or
widespread tissue injury.  Many disorders  associated with inflammation occur in
response to an unknown stimulus that misdirects the inflammation process against
normal tissue. This lack of appropriate regulation generally results in chronic,
progressive  disease  conditions  that may  ultimately  lead to  dysfunction  or
destruction of the affected organ system.

         Abnormal Remodeling

         Connective   tissue  undergoes   constant  turnover  through  a  normal
remodeling process that links the breakdown of the collagen-based  extracellular
matrix with the synthesis of new collagen.  The body's  ability to regulate this
process normally keeps the amount of connective  tissue,  which is 95% collagen,
in  balance.  When this  balance  is broken,  as in the case of certain  chronic
diseases, the result can lead to the increase in or breakdown of collagen.  Both
excessive  formation or destruction  of connective  tissue can result in serious
disease. There is currently no approved therapy that has been documented to have
significant beneficial effect on the clinical course of abnormal remodeling.

         As an example,  the  overproduction  of  collagen  can result in keloid
formation,   hypertrophic  scarring  and  severe  systemic  disorders,  such  as
scleroderma and pulmonary fibrosis.  Keloids and hypertrophic scars are abnormal
healing responses that occur in the skin, resulting in large, painful,  elevated
scars that are  unattractive  in  appearance.  There are  approximately  300,000
patients treated by dermatologists  and plastic surgeons for keloids every year.
Scleroderma  is one of the most  serious  diseases  involving  the  uncontrolled
formation of connective tissue.  Approximately  300,000  individuals,  primarily
women,  suffer from various forms of this  disease,  with  approximately  60,000
having severe or systemic sclerosis with diffuse scleroderma. In its most severe
form,  the disease  has a five year  mortality  rate in 50-70% of cases.  In the
United States, scleroderma is primarily treated by rheumatologists in the United
States.  Currently  there  is no cure  for  this  often  fatal  disease  and few
therapies  ease  the pain  and  suffering  of  scleroderma  patients.  Pulmonary
fibrosis represents a group of diseases associated with chronic inflammation and
increase in  fibrotic  tissue in the walls of the  alveolar  spaces in the lung.
Ultimately, these diseases result in scarring of lung tissue, impairment of lung
function,  and in many cases,  death.  Approximately  144,000 individuals suffer
from   pulmonary   fibrosis.   Pulmonary   fibrosis  is  primarily   treated  by
pulmonologists, oncologists and rheumatologists.

         Autoimmune Disorders

         Connective  tissue can also be  destroyed  by  various T  cell-mediated
autoimmune  diseases.  Autoimmune diseases are generally believed to result from
an inappropriate  response of the immune system. The immune system is the body's
major biological  defense  mechanism,  first  distinguishing  antigens  (foreign
substances)  from the  body's  tissue  and then  eliminating  a wide  variety of
disease-causing  pathogens,  such as bacteria and viruses.  A major component of
this system is T cells. In many autoimmune  diseases,  these T cells go awry and
attack  the  body's  healthy  tissues.  There is  mounting  evidence  that these
disease-causing  T cells  are  concentrated  at the  disease  site,

                                      -26-

<PAGE>

where  they  initiate  signals  leading  to tissue  destruction.  The  mechanism
responsible for causing these T cells to attack healthy tissue has, for the most
part, not been identified.  Autoimmune  diseases can attack virtually any tissue
or organ of the body, are often debilitating and can be fatal.

         For example,  rheumatoid arthritis is an autoimune disease that attacks
the connective tissue in the joints.  Rheumatoid  arthritis is a chronic disease
in which  the  body's  immune  system  leads to an attack  on  synovial  tissue,
resulting in progressive, painful inflammation and destruction of the joints. In
advanced stages of the disease, symptoms include severe pain, body disfigurement
and loss of mobility.  It is  estimated  that between one and two percent of the
adult U.S.  population,  or more than two million  individuals,  have rheumatoid
arthritis.  Women are three times more  susceptible than men. No current therapy
cures the disease and often its progression  cannot be stopped.  The efficacy of
currently  used drugs tends to be directly  correlated  with systemic  toxicity.
Rheumatoid arthritis is primarily treated by rheumatologists. Another example of
an autoimmune disease is multiple sclerosis,  a chronic  inflammatory disease of
the central nervous system in which the body's immune system attacks  myelin,  a
substance  that  encircles and insulates  nerve fibers.  Multiple  sclerosis can
result in impaired  mobility,  visual impairment,  slurred speech,  poor bladder
control,  sexual  dysfunction  and,  ultimately,  confinement  to a  wheelchair.
Approximately  250,000  persons  suffer from  multiple  sclerosis  in the United
States.  Multiple sclerosis is primarily treated by neurologists.  However, none
of the  currently  available  treatments  address  the  underlying  cause of the
disease.

CONNETICS STRATEGY

         The key elements of the Company's strategy include:

         - Focus on the  Treatment  of Serious  and Chronic  Diseases  Involving
Connective Tissue. The Company's products and technologies are initially focused
on  the  treatment  of  diseases   involving   connective   tissues   caused  by
inflammation,  abnormal  remodeling  and  autoimmune  disorders.  These diseases
include serious skin and skin structure  diseases such as keloids,  scleroderma,
organ  fibroses,   rheumatoid   arthritis  and  multiple   sclerosis.   Although
individually these diseases have been the subject of many research programs,  no
concentrated   effort  has  been  aimed  at  the  market  segment  as  a  whole,
representing  significant and currently underserved  opportunities.  The Company
believes that its focus on diseases involving  connective tissue,  combined with
its technological and marketing  expertise,  maximizes the likelihood of success
in rapidly developing and effectively commercializing products.

         -  Develop  a  Marketing  Organization  Targeting  Rheumatologists  and
Dermatologists.  The Company is targeting its initial  commercial  activities at
rheumatologists  and   dermatologists,   which  can  be  served  by  a  focused,
specialized  marketing  organization.   Scalp  psoriasis  and  skin  dermatoses,
betamethasone mousse's target indications,  and keloids, gamma interferon's lead
indication,  are treated primarily by dermatologists.  Scleroderma,  ConXn(TM)'s
lead indication, and rheumatoid arthritis, treated by Ridaura, and for which TCR
Vaccines are being developed, are primarily treated by rheumatologists. With the
acquisition  of rights to  Ridaura,  an  established  treatment  for  rheumatoid
arthritis,  the Company  was able to enter the U.S.  and  Canadian  rheumatology
market in  December  1996.  As such,  the  Company's  strategy  is to target its
marketing  activities  to the  approximately  3,000  rheumatologists  and  7,000
dermatologists  practicing  in the United  States.  In addition,  because  these
rheumatologists   and  dermatologists   are  primarily   concentrated  in  major
metropolitan  areas, they can be effectively  served by a relatively small sales
force.

         - In-License  Development Stage and currently  Marketed  Products.  The
Company  expects to continue to  in-license  and acquire  rights to  development
products and currently marketed products for the treatment of diseases involving
skin and  connective  tissue.  To date, the Company has  in-licensed  both gamma
interferon and relaxin from  Genentech,  and has acquired rights to TCR vaccines
technology  primarily from  Genentech and XOMA  corporation,  exclusive  license
rights to  betamethasone  mousse and the mousse delivery  technology from Soltec
Research  PTY Ltd.,  and  exclusive  U.S.  and  Canadian  rights to Ridaura from
SmithKline.  Increasing  consolidation in the  pharmaceutical  and biotechnology
industries and continuing changes in the health care system are changing the way
therapeutic  products  are  developed  and  marketed.  As a result,  the Company
believes there are significant opportunities to in-license or acquire additional
products from pharmaceutical companies that are not being

                                      -27-

<PAGE>

developed or optimally  promoted by these companies or do not fit in the present
business strategy of such companies, or from research and academic institutions.
The Company believes it is  well-positioned  to expand its product  portfolio by
licensing such products because of its market focus,  complementary  products in
development  and  relevant  management  experience  in product  development  and
marketing.  The Company  believes that this  strategy can result in  accelerated
development and  commercialization  of novel products to treat serious  diseases
involving  connective  tissue at significantly  lower capital  requirements than
most  biotechnology  companies  while  minimizing the company's  exposure to the
risks inherent in drug discovery and basic research.

         - Leverage Product  Development and  Commercialization  Expertise.  The
Company is  leveraging  its product  pipeline by  developing  its  products  for
multiple indications targeted at its strategic markets. In addition, the Company
believes  certain of its products can be developed for  significant  markets and
high-value  opportunities  outside its strategic markets. Such uses include burn
scarring and infertility for ConXn(TM),  and inflammatory bowel disease and type
I diabetes for TCR  vaccines.  To target such uses,  the Company plans to either
retain such products in-house or license them to third parties.

         - Utilize Corporate  Partnerships to Pursue Additional  Markets. In its
strategic markets, the Company plans to retain commercial rights to its products
in North  America  and to enter  into  corporate  partnerships  with  respect to
additional  market  segments in North America and  international  markets.  This
strategy will allow the Company to pursue additional therapeutic markets, offset
near term development costs and enter international markets. The Company intends
to pursue collaborative  relationships to provide funding and consulting support
for the  Company's  research  and  development  programs  and to  assist  in the
clinical and regulatory  development and  commercialization of specific products
outside of North America.

         - Minimize Drug  Discovery  and  Manufacturing  Costs.  The Company has
sought to minimize the costs of drug discovery and manufacturing by in-licensing
later-stage   development   and   currently   marketed   products,   outsourcing
manufacturing and utilizing research collaborators and consultants. To date, the
Company's  clinical  supplies  have  been  manufactured  by third  parties  on a
contract basis. The Company also initially  intends to use third parties for the
manufacture  of its  commercial  products,  including  Ridaura,  which  is being
manufactured  for the Company by SmithKline  through  December 2001. The Company
believes it will be able to minimize costly  infrastructure by continuing to use
external resources where appropriate.

<TABLE>
PRODUCT DEVELOPMENT

         The  Company  has  products  in  various   stages  of   development  as
illustrated in the table below:

<CAPTION>
PRODUCT                                 INDICATION                             DEVELOPMENT STATUS

<S>                                     <C>                                    <C>
ConXn(TM)                               Scleroderma                            Pivotal Trial (to begin in 1998)
                                        Organ Fibrosis                         Pre-clinical
                                        Infertility                            Pre-clinical
TCR Peptide Vaccine                     Multiple Sclerosis                     Phase I/II
                                        Rheumatoid Arthritis                   Phase I
Betamethasone Mousse                    Psoriasis                              NDA to be filed in 1998
High-potency Steroid Mousse             Severe Psoriasis / Skin Dermatoses     Phase III (to begin in 1998)
Gamma Interferon                        Keloids                                Phase II
                                        Atopic Dermatitis                      Phase III completed; data analysis on-going
</TABLE>

         ConXn(TM) Development Program

         ConXn(TM)  is a  naturally  occurring  peptide  hormone  that  promotes
remodeling of connective tissues.  Research by two of the Company's founders and
their  colleagues  has shown that  ConXn(TM)  can inhibit  excessive  connective
tissue formation and promote connective tissue remodeling through at least three
mechanisms: inhibiting the production of collagen by fibroblasts, increasing the
production of collagenase  (the enzyme that breaks down collagen) and decreasing
the production of TIMP (a protein that blocks collagenase action). These results
have been  confirmed  by in vitro  studies  and in vivo  animal  models of human
disease.  ConXn(TM)  can now be

                                      -28-

<PAGE>

produced in significant  quantities by outside  contractors  using the Company's
recombinant  manufacturing  techniques.  Connetics is currently  developing  the
recombinant  form of ConXn(TM) for use in the treatment of scleroderma and other
fibrotic   conditions,   including   various   organ   fibroses   and  in  vitro
fertilization.

         Scleroderma.   Scleroderma,  also  called  systemic  sclerosis  in  its
advanced stages, is a generalized  disorder of connective  tissue  characterized
clinically by thickening and fibrosis of the skin and internal organs, including
the heart, lungs,  kidneys and gastrointestinal  tract.  Although the underlying
cause of this  disease  is  unknown,  the  overproduction  and  accumulation  of
collagen and other extracellular  matrix proteins in skin and other organs often
leads  to  severe  and  painful  disfigurement,   quality  of  life  impairment,
dysfunction  of  vital  organs  and  death.  There  are  in  excess  of  300,000
individuals suffering from scleroderma,  of which approximately 60,000 to 80,000
have the most severe form. In the most severe form,  the disease has a five-year
mortality  rate of 50-70%.  There are no effective  treatments for this disease;
current  therapies are directed to alleviating the symptoms of the disease,  not
the underlying cause.

         In  1995,  the  Company  completed  a Phase  I/II  clinical  trial  for
recombinant  human ConXn(TM) in patients with  scleroderma.  This study examined
the safety and pharmacokinetics of continuous subcutaneous infusion of ConXn(TM)
for 28 days at five different dose levels  compared to placebo.  Thirty patients
with a history of at least two years with systemic  sclerosis were enrolled in a
randomized, double-blind,  placebo-controlled trial. Administration of ConXn(TM)
was well  tolerated  through 28 days at all dose  levels.  In  addition,  during
global  assessments  performed  at  the  end of the  study,  ten of 20  patients
receiving  ConXn(TM)  reported  improvement versus two of ten patients receiving
placebo.  No serious adverse events were observed and no patients dropped out of
the study.  These  safety and  pharmacokinetic  observations  support  continued
clinical evaluation of ConXn(TM) for the treatment of scleroderma.

         In June 1997,  the  Company  released  clinical  data from its Phase II
clinical trial. The double-blind,  placebo-controlled study involved 64 patients
randomized into one of two treatment  groups (25 or 100 ug/kg/day),  or placebo.
In the group  receiving a dose of 25  ug/kg/day,  statistical  significance  was
found in skin score  improvement,  the primary clinical  endpoint,  and positive
trends  were seen in all twelve  other  parameters.  As  suggested  by  previous
studies,  the  higher  dose had no effect on the  treatment  group  compared  to
placebo.  Based  upon  these  results,  and a  meeting  with  the  Food and Drug
Administration,  the Company plans to begin a pivotal trial of ConXn(TM) for the
treatment of scleroderma in 1998.

         The Company has been  granted  Orphan  Drug  Status for  ConXn(TM)  for
treatment of progressive  systemic sclerosis,  a severe form of scleroderma.  In
the United  States,  the Orphan  Drug Act of 1983  provides  incentives  to drug
manufacturers  to develop and  manufacture  products  for the  treatment of rare
diseases,   currently  defined  as  diseases  that  affect  fewer  than  200,000
individuals  in the  United  States,  or for a disease  that  affects  more than
200,000   individuals   in  the  United   States  where  the  sponsor  does  not
realistically anticipate its product becoming profitable.  Under the Orphan Drug
Act,  a  manufacturer  of a  designated  orphan  product  can seek  certain  tax
benefits,  and the  holder of the  first FDA  approval  of a  designated  orphan
product will be granted a seven-year  period of marketing  exclusivity  for that
product for the orphan indication.  While the marketing exclusivity of an orphan
drug would prevent other  sponsors from  obtaining  approval of the same product
for the same indication, it would not prevent other types of products from being
approved for the same use. The U.S.  Congress has considered and may consider in
the  future,  legislation  that  would  restrict  the  duration  of  the  market
exclusivity  of an orphan drug and,  thus,  there can be no  assurance  that the
benefits of the existing statute will remain in effect.

         In addition to  scleroderma,  the Company  believes  ConXn(TM) may have
potential in organ fibroses,  such as pulmonary  fibrosis.  Pulmonary  fibrosis,
also  known  as  interstitial  lung  disease,  represents  a group  of  diseases
associated with chronic inflammation and excessive production of collagen in the
walls of the alveolar spaces in the lung.  Approximately  144,000 individuals in
the United States suffer from this disease. In the case of idiopathic  pulmonary
fibrosis the underlying cause of the fibrosis is unknown,  while other cases may
be associated  with another  disease  process,  such as  scleroderma,  or due to
exposure to toxic drugs or environmental  agents.  Current therapy for pulmonary
fibrosis   consists   of   corticosteroids   and   cytotoxic   drugs   such   as
cyclophosphamide, which, when utilized, are largely ineffective.

                                      -29-

<PAGE>

         Also,  based  upon  work  done  by  Company   scientists  and  external
collaborators,  relaxin  appears  to have an effect on  endometrial  blood  flow
during  pregnancy.  Higher  levels of relaxin have been highly  correlated  with
successful  pregnancy  and term  delivery.  The Company  plans to  continue  its
assessment  of these data,  and if promising,  begin a  development  program for
relaxin use in in vitro fertilization.

         T-Cell Receptor ("TCR") Peptide Development Program

         The  Company is also  developing  TCR  Peptide  vaccines  to arrest the
autoimmune  disease process by boosting the naturally  occurring  control arm of
the immune system that  functions  inefficiently  in  immune-mediated  diseases.
Connetics  has  two TCR  vaccine  programs  in  development,  one  for  multiple
sclerosis and one for rheumatoid arthritis.

         Multiple Sclerosis.  Multiple sclerosis is an autoimmune disease of the
central  nervous  system that  results from damage to myelin,  a substance  that
encircles and insulates nerve fibers.  Multiple sclerosis can result in impaired
mobility,  visual  impairment,  slurred  speech,  poor bladder  control,  sexual
dysfunction and, ultimately, confinement to a wheelchair.  Approximately 270,000
persons  suffer  from  multiple  sclerosis  in the  United  States.  The cost of
treatment in the United  States  alone was  estimated to be $270 million in 1995
and is expected to grow to $1.7 billion worldwide by 1999. However,  none of the
currently available treatments address the underlying cause of the disease.

         A placebo-controlled, double-blind, randomized, physician sponsored TCR
Vaccine Phase I trial  involving 11 patients and a Phase I/II trial involving 23
patients  with  chronic  progressive  multiple  sclerosis  were  conducted by an
independent  clinical  investigator  in  association  with  chronic the Company.
Results from these trials suggest that a number of patients achieved the desired
immune  response to the vaccine,  that the vaccine was well  tolerated  and that
patients who had the desired  immune  response  experienced a  stabilization  of
disease  without side  effects  during one year of therapy.  Successful  peptide
vaccination boosted protective T-cells and lowered pathogenic T-cells thought to
cause the disease.  In December 1996, the Company  initiated a 100 patient Phase
I/II clinical trial of TCR Vaccines for the treatment of multiple  sclerosis and
completed patient  enrollment in May 1997.  Results from this study are expected
to be available in early 1998.

         Rheumatoid  Arthritis.  Rheumatoid  arthritis  is a chronic  disease in
which the body's immune system attacks  synovial tissue in joints,  resulting in
progressive,  systemic  and  painful  inflammation  and  erosion of  joints.  In
advanced phases of the disease, symptoms include severe pain, body disfigurement
and loss of  mobility.  The cause of  rheumatoid  arthritis  is unknown,  though
environmental   toxins,   certain   pathogens  and  genetic  factors  have  been
implicated.  It is estimated  that between one and two percent of the  worldwide
adult  population,  including  approximately  three million  individuals  in the
United States, suffer from rheumatoid arthritis and about one-half of these will
progress to severe  disease.  Women are three times more  susceptible  than men.
Current  treatment for  rheumatoid  arthritis  uses a  combination  of drugs and
physical and occupational therapy in an attempt to prevent further joint damage.
None of these therapies stops progression completely or reverses the damage.

         At the tissue level, there is mounting evidence to suggest that T-cells
present at the sites of inflammation cause fibroblast  dysfunction that leads to
destruction  of the joint  capsule.  Company  investigators  have  analyzed  the
frequency of T-cells with certain types of receptors in patients with rheumatoid
arthritis.  Through such studies the Company has identified peptides which mimic
these  receptors  and  which  may be useful  as  therapeutic  vaccines.  Company
investigators and their  collaborators have performed parallel studies in animal
models of arthritis in which  disease  relevant T cells with  specific  receptor
configurations have been defined.  Therapeutic  vaccines based upon the relevant
protein sequences were produced and demonstrated to control the disease process.
Based on these studies,  in 1997 the Company initiated a pilot clinical trial of
TCR Vaccines for rheumatoid arthritis.

         As part of its TCR Vaccines research program, Connetics has established
a methodology for identifying and isolating  disease-causing T cells,  which the
Company  may  use to  develop  additional  products  based  on its  TCR  vaccine
technology to treat diseases such as inflammatory  bowel disease,  psoriasis and
type I diabetes.  The TCRs from  relevant T cells are analyzed and the resulting
amino acid sequence  information  is used to chemically  synthesize  therapeutic
vaccine  peptides.   The  Company  believes  that  these  TCR  peptides  can  be
administered  to the

                                      -30-

<PAGE>

patient  as a  disease-specific  immune  booster  to halt  the  progress  of the
autoimmune  disease.  The Company  further  believes that,  because TCR peptides
selectively  inhibit only certain T cells,  side effects resulting from general,
non-specific immunosuppression can be avoided.

         Betamethasone mousse program

         In June 1996, the Company signed an agreement with Soltec  Research PTY
Ltd.  which  granted  Connetics  an  exclusive  license  to  develop  and market
betamethasone  mousse in North  America.  The  product is being  marketed in the
United  Kingdom by Evans Medical  Ltd., a division of Medera PLC.  Betamethasone
mousse  is  a  mousse   formulation  of   betamethasone   17-alpha-valerate,   a
corticosteroid  currently  marketed in the U.S.  The foam  formulation  has been
shown to liquify when applied to the body,  enabling rapid penetration of active
dermatologic  agent. This formulation is designed to be easier to apply and less
messy than currently  marketed scalp lotions and gels. In addition,  the ease of
use and patient acceptability may enhance patient compliance.

         Psoriasis.   Psoriasis,  a  chronic,   recurrent  dermatologic  disease
characterized by inflammation and thickening of the skin, is estimated to affect
over five  million  people in the United  States.  Scalp  psoriasis,  a distinct
manifestation of psoriasis,  is a serious problem for more than sixty percent of
psoriatics. Over 1.2 million patients are in treatment at any time in the United
States.  Patients with scalp psoriasis  suffer from various degrees of erythema,
scaling  and  itching  associated  with  the  disease,  and the  disease  course
typically  involves periods of remission followed by acute  exacerbations.  In a
comparative  clinical trial of  betamethasone  mousse  against  placebo in scalp
psoriasis  patients in the U.K.,  patients  treated  with  betamethasone  mousse
showed statistically significant improvement in erythema (redness),  scaling and
plaque.  The product was well  tolerated  and no adverse  systemic  effects were
noted.

         On August 5, 1997,  the Company  announced  results  from its Phase III
clinical trial of betamethasone  mousse. The results demonstrated  statistically
significant improvement over both placebo and a currently marketed betamethasone
lotion for the treatment of scalp  psoriasis.  The Company intends to file a New
Drug Application (NDA) with the Food and Drug Administration (FDA) to market the
product for use in all steroid-responsive  dermatoses,  including psoriasis,  in
the first  quarter of 1998.  The  190-patient,  placebo-controlled,  randomized,
double-blind,  multi-center  Phase III study  demonstrated that patients treated
with betamethasone mousse,  administered  twice-daily for 28 days, experienced a
statistically  significant  improvement over patients in the groups treated with
betamethasone lotion, or placebo, in all endpoints,  including erythema (redness
of the skin),  plaque thickness and scaling.  In addition,  study  investigators
completed  a  physicians   global   assessment   which   showed  that   overall,
approximately  67% of patients treated with the mousse  formulation had complete
or almost  complete  clearance of symptoms  compared with 46% for lotion and 19%
for placebo in an intent to treat analysis. Both betamethasone mousse and lotion
were generally well tolerated.

         Gamma Interferon Development Program

         Gamma  interferon  is a member of a family of proteins  involved in the
regulation  of the  immune  system,  and has been shown to be  effective  in the
treatment  of  certain  immune-mediated  diseases.  Gamma  interferon  is an FDA
licensed product,  manufactured and marketed by Genentech for an orphan disease,
chronic  granulomatous  disease (CGD).  Gamma  interferon also has been shown to
inhibit the  production  of IgE (a type of antibody)  and  collagen.  Because of
these biological properties,  the Company is developing gamma interferon for use
in the treatment of keloids.

         Keloids  are  abnormal  healing  responses  caused by  excess  collagen
production, and typically occur in the skin of susceptible individuals resulting
in large, painful,  elevated scars which are usually unattractive in appearance.
There are approximately  300,000 patients treated by dermatologists  and plastic
surgeons for keloids every year.  Although  existing  therapies are  potentially
efficacious, recurrence after therapy is frequent.

         In vitro studies have shown that gamma  interferon can inhibit collagen
synthesis  and   production.   Phase  I/II  trials   conducted  by   independent
investigators in  collaboration  with Genentech have shown  preliminary  results
indicating that gamma  interferon may be efficacious in the treatment of keloids
and   hypertrophic   scars.   One  study

                                      -31-
<PAGE>


involved ten patients who received  intralesional  therapy  (injection  directly
into the keloid) for keloids or  hypertrophic  scars.  At 18 weeks,  five of ten
keloids or scars  decreased by 50% or more.  Therapy was well  tolerated and all
patients completed the ten week course of treatment.  Another placebo-controlled
study of intralesional  therapy was conducted in ten patients with keloids.  Six
of eight patients completing the study showed clinically  significant  responses
in reduction of the size of gamma interferon-treated keloids, as compared to the
placebo-treated keloids. Therapy was well tolerated with no dosage reductions or
patient terminations due to adverse effects of treatment. Based on this in vitro
and clinical  information,  the Company  initiated a Phase II clinical  trial in
1996 to demonstrate  the efficacy of gamma  interferon  therapy in patients with
keloids.  In May 1997, the Company completed  patient  enrollment in this trial,
with 40 patients enrolled.

         In August 1997,  the Company  announced  the results from its Phase III
clinical  trial of gamma  interferon  for the  treatment  of atopic  dermatitis.
Analysis  of the  trial did not show an  acceptable  therapeutic  response  with
respect to the primary clinical  endpoint - a composite  clinical severity index
based upon erythema, papulation (swelling) and excoriation (scratch marks). As a
result, the Company announced that it has suspended plans to submit a Biological
License  Application  (BLA) for gamma  interferon  for the  treatment  of atopic
dermatitis.  The  Company  is  continuing  to  evaluate  data from the trial and
expects the results to be available by the end of 1997.

MARKETED PRODUCT

         On December  31, 1996,  the company  acquired  the  exclusive  U.S. and
Canadian  rights to Ridaura from  SmithKline  Corporation  and related  entities
("SmithKline").  Ridaura is an oral formulation of a gold salt (auranofin). Also
classified as a disease-modifying  antirheumatic drug, Ridaura has been shown to
slow joint destruction and the progression of rheumatoid arthritis.  The drug is
currently  indicated  for adults with active  rheumatoid  arthritis  who are not
responsive   to,   or  are   intolerant   of,   treatment   with   non-steroidal
anti-inflammatory drugs.

         Rheumatoid  arthritis.  Rheumatoid  arthritis is an autoimmune  disease
that  afflicts one to two percent of adult  Americans  (approximately  3 million
patients), with women three times more susceptible than men. It is characterized
by  inflammation  of synovial  tissues with joint pain,  swelling and stiffness.
Although  autoimmune  arthritis  can  afflict  children  and  adolescents,   the
incidences  of  clinical  illness is  greatest  among those aged 40 to 60 years.
Rheumatoid  arthritis  is an  extremely  disabling  disease  that carries a high
degree of morbidity.

         Connetics  began  marketing  Ridaura  through  its own  sales  force in
mid-1997.  Through agreements with SmithKline,  customer orders and distribution
for the product  will  continue  to be managed by  SmithKline  through  1997 and
SmithKline will  manufacture and supply Ridaura (in final finished package form)
to the  Company  for an initial  term  through  December  2001.  The  Company is
currently  finalizing  arrangements with a third party vendor to assume customer
orders and  distribution for the product  commencing in December 1997,  although
there can be no assurance that such arrangements will be consummated.

         The Company is also in discussions  with a Canadian  corporation  for a
potential sale or license of the Canadian rights to Ridaura.  However, there can
be no assurance that such transaction will be consummated.

COLLABORATIVE RELATIONSHIPS

         The Company's  initial  products were licensed from Genentech and XOMA.
As part of its business strategy,  the Company has entered into and continues to
explore strategic  collaborative  relationships  and consulting  agreements with
leading  researchers  and  institutions  working in its fields of  interest,  to
complement its internal research efforts and provide access to technologies that
complement   and  expand  its  existing   portfolio.   The  Company  is  seeking
collaborative  agreements with pharmaceutical companies as sources of additional
products and as partners for the development and marketing of existing products.
See "-- Connetics Strategy," "-- Marketing and Sales."

                                      -32-

<PAGE>

         Genentech.  In September 1993,  Genentech and Connetics  entered into a
license  agreement (the "September 1993 Agreement")  pursuant to which Connetics
obtained  exclusive   worldwide  rights  to  relaxin   (excluding   reproductive
indications  and the  territories  of Japan,  Korea and the  Republic of China),
including  rights  licensed to  Genentech  from the Howard  Florey  Institute of
Experimental  Physiology  and  Medicine in  Melbourne,  Australia  (the  "Florey
Institute"). Connetics also has rights to future developments regarding relaxin.
The  Company is  obligated  to pay  royalties  on  licensed  product  sales.  In
addition,  Genentech  received an equity position in the Company.  The September
1993  Agreement  also  includes  certain   technology   transfer,   supply,  and
intellectual property provisions. The Company is responsible for meeting certain
milestones  and making  payments for supplies  provided under the September 1993
Agreement.  Failure  to  timely  achieve  designated  milestones  may  result in
termination of the agreement by Genentech and a license on a non-exclusive basis
to Genentech  of relaxin  technology  developed  by the  Company.  In July 1994,
Genentech and  Connetics  amended the  September  1993  Agreement to clarify the
Company's  right to sub-license  the relaxin  technology,  subject to a right of
first offer held by Genentech.  The Company's rights to relaxin were expanded to
include  reproductive  indications on a co-exclusive  basis with  Genentech.  In
April 1996,  the Company  acquired  rights to Japan,  Korea and the  Republic of
China  from  Genentech,  thereby  giving  the  Company  worldwide  rights to the
technology.

         The  Company is  currently  negotiating  an  agreement  with the Florey
Institute  that will  provide for the Company to pay  royalties  directly to the
Florey Institute  (rather than through  Genentech) and for such royalty payments
to be  restructured.  Under the proposed  agreement,  the Company  would provide
approximately  $125,000 of annual research funding to the Florey Institute for a
five-year period (which could terminate  earlier upon the date of the first sale
of a relaxin  product by Connetics  or its  partner),  and the Florey  Institute
would receive a royalty on Connetics' sales of relaxin products and a portion of
revenues received from corporate partners.  In addition,  the Company is engaged
in discussions with a number of pharmaceutical companies regarding marketing and
sales  alliances for ConXn for the European and Asian  markets.  There can be no
assurance  that  any of the  agreements  described  in  this  paragraph  will be
consummated on a timely basis, or at all.

         In December  1995,  Genentech and  Connetics  entered into an agreement
with  respect to gamma  interferon  pursuant to which the  Company has  acquired
exclusive development and marketing rights in the United States for dermatologic
indications.  This Agreement includes supply provisions on the part of Genentech
and obligates the Company to pay for such supply,  providing for a profit margin
and an allowance  for the  Company's  expenses in  developing  and marketing the
product.

         XOMA.  In June 1994,  Connetics  entered  into an  agreement  with XOMA
pursuant to which the Company  acquired  additional  TCR Vaccine  technology and
patent rights.  This Agreement  obligates the Company to make certain  milestone
payments  and to pay certain  royalties  on sales of TCR vaccine  products.  The
Company's  failure to meet certain  milestones may result in the  acquisition by
XOMA of a co-exclusive  royalty-free  license to the TCR vaccine technology with
the right to sublicense.

         Arthur A. Vandenbark,  Ph.D. (Veterans  Administration  Medical Center,
Portland,   Oregon).   In  July  1994,  the  Company  entered  into  a  Research
Collaboration and Assignment Agreement with Dr. Vandenbark,  the inventor of the
patent  rights  acquired  from XOMA,  to establish a framework  for a three-year
scientific  collaboration  relating  to  the  development  of  the  TCR  Peptide
vaccines.  The agreement  provides  that the Company pays the Portland  Veterans
Affairs Research Foundation in order to fund the collaborative  research,  gives
the Company access to future inventions and know-how,  and obligates the Company
to make certain royalty payments on sales of products not already covered by the
XOMA Agreement.  In addition,  the Company granted to Dr. Vandenbark  options to
purchase the Company's Common Stock,  which vest upon the achievement of certain
milestones.

         Medical  University of South Carolina  (Christian  Schwabe,  Ph.D.). In
April 1995, the Company entered into a Collaborative Research Agreement with the
Medical  University  of South  Carolina to  establish a  collaborative  research
program  expanding upon an existing  consulting  relationship with Dr. Christian
Schwabe in the area of  relaxin  research,  including  the  biology,  receptors,
synthesis  and  activities  of  relaxin,  the genes  encoding  relaxin,  relaxin
peptides,  analogs and related  compounds.  The agreement  provides  funding for
collaborative  research,  gives the  Company  access to  future  inventions  and
know-how, and obligates the Company to make certain royalty payments on sales of
products covered by licensed patents.

                                      -33-

<PAGE>

         Soltec.  In June 1996,  the Company  entered into an exclusive  License
Agreement  with Soltec  Research  PTY Ltd.  to develop and market  betamethasone
mousse  (a foam  mousse  formulation  of the  dermatologic  drug,  betamethasone
valerate) in North America.  Under the terms of the agreement,  the Company will
pay a licensing fee to Soltec,  plus  royalties on future sales of products,  if
any,  arising  from the licensed  technology.  The Company also has an exclusive
option on Soltec's  foam mousse  system for the delivery of other  compounds and
has exercised  such option for  clobetasol  propionate,  a high potency  topical
steroid.

         SmithKline.  In December  1996,  the Company  entered into an agreement
with SmithKline  under which the Company  acquired  exclusive  United States and
Canadian rights to Ridaura. Ridaura is currently being distributed by SmithKline
on behalf of the Company.  Through  agreements with SmithKline,  customer orders
and  distribution  for the product  will  continue  to be managed by  SmithKline
through  1997 and  SmithKline  will  manufacture  and supply  Ridaura  (in final
finished package form) to the Company for an initial term through December 2001.

PATENTS AND PROPRIETARY RIGHTS

         The  Company's  success will depend in part on the ability of Connetics
and its licensors to obtain  patent  protection  for the Company's  products and
processes,  to preserve its trade secrets, and to operate without infringing the
proprietary  rights  of  third  parties.  The  Company  owns,  controls  or  has
exclusively  licensed  pending  applications  and/or  issued  patents  worldwide
relating  to the  technology  of all  three  of its  major  programs  as well as
technology in the earlier stages of research.

         The Company's gamma interferon  patent  portfolio  includes issued U.S.
patents and other pending  applications  relating to the  composition of matter,
formulations and methods of treatment,  which do not begin to expire until 2009.
The Company's  relaxin  patent  portfolio  relates to the  composition of matter
(proteins  and DNA),  analogs and closely  related  compositions,  formulations,
methods of manufacture and methods of treatment, including issued patents in the
U.S. with various  international  equivalents in addition to other  applications
that remain  pending.  The issued  relaxin  patents will expire at various times
between 2003 and 2012.  The  Company's  TCR Peptide  patent  portfolio  includes
pending  applications in the U.S., and a corresponding  international patent and
applications,  relating to compositions of matter  (peptides,  peptide  analogs,
peptide  fragments,  and  antibodies),   formulations,   methods  of  treatment,
diagnostic methods, and methods of  preparing/isolating  protective T cells. Two
issued  international  patents  (Australia and Israel) expire in 2010, an issued
U.S.  patent  expires  in 2014 and  patents  issuing  on the  pending  U.S.  and
international  applications  would  expire at various  times  beginning in 2010.
Extensions  may be  available  for certain  key  patents in the U.S.  and Europe
(subject to statutory  changes  before  product  approval).  See  "Collaborative
Relationships."

         There has been increasing  litigation in the biomedical,  biotechnology
and pharmaceutical  industries with respect to the manufacture,  use and sale of
new therapeutic  products that are the subject of conflicting patent rights. The
validity  and  breadth  of  claims  in   biomedical/pharmaceutical/biotechnology
patents involve complex factual and legal issues for which no consistent  policy
has emerged, and therefore,  are highly uncertain.  Moreover, the patent laws of
foreign countries differ from those of the U.S. and the degree of protection, if
any,  afforded by foreign patents may,  therefore,  be different.  In Europe,  a
third  party  appeal  is  pending  from an  opposition  to a patent  application
concerning relaxin DNA; the original opposition was successfully defended by the
Company's  licensor.  No assurance can be given that any of the Company's or its
licensors'  patent  applications  will issue as patents or that any such  issued
patents  will  provide  competitive  advantage  to the  Company  or will  not be
successfully challenged or circumvented by its competitors.  In addition, others
may hold or receive  patents or file patent  applications  that  contain  claims
having a scope that  covers  products  or  processes  made,  used or sold by the
Company. In the event that any claims of third-party patents are upheld as valid
and  enforceable  with respect to a product or process made, used or sold by the
Company,  the Company  could be prevented  from  practicing  the subject  matter
claimed in such patents or could be required to obtain  licenses or redesign its
products or processes to avoid  infringement and could be liable to pay damages.
There  can be no  assurance  that  such  licenses  would  be  available  or,  if
available,  would be on commercially reasonable terms, or that the Company would
be  successful  in any attempt to redesign  its  products or  processes to avoid
infringement.

                                      -34-

<PAGE>

         In March 1997, the Company  announced that the United States Patent and
Trademark Office has awarded the Company a patent (U.S. Patent Number 5,614,192)
covering  TCR  peptides  and  functional  derivatives  encompassing  the  second
complementarity   determining   region   (CDR2)  as   compositions   of  matter,
formulations  (including  peptide  cocktails) and methods of treatment of T-cell
mediated diseases.

         The Company has become aware that third parties have  obtained  patents
generally relating to TCR Vaccines technology, including a U.S. patent issued to
Immune  Response  Corporation on March 18, 1997.  With regard to such patents as
are known to the  Company and its patent  counsel,  the  Company  believes  such
patents'  claims  would be found  either  invalid or not  infringed  if asserted
against the  proposed TCR  Vaccines.  The Company has filed an  opposition  to a
European patent claiming  compositions for use in treating  multiple  sclerosis,
covering certain TCR V beta peptides  disclosed for treating multiple  sclerosis
in the Company's own,  earlier-filed  application;  another  opposition has been
filed against this patent by an independent  party. The Company is also aware of
other  pending  third  party  patent  applications  which,  if issued,  might be
asserted against the Company's TCR Vaccines and products or processes as planned
to be made,  used or sold by the  Company.  If such  patents  were  successfully
asserted,  the Company could be required to obtain  licenses or redesign its TCR
Vaccines products or processes to avoid  infringement and could be liable to pay
damages, or could be prevented from  commercializing TCR Vaccines.  There can be
no assurance that such licenses would be available or, if available, would be on
commercially  reasonable  terms,  or that the Company would be successful in any
attempt to redesign its products or processes to avoid infringement. Even if the
Company's patent counsel render advice that the Company's products and processes
do not  infringe any valid claim under third party  patents  relating to the TCR
Vaccines technology, neither they nor the Company can assure that no third party
will commence  litigation to enforce such patents,  or that the Company will not
incur  substantial  expenses or that it will  prevail in any patent  litigation.
Moreover, patent applications in the U.S. are maintained in secrecy until issue,
and publication of discoveries in the scientific or patent  literature often lag
behind actual discoveries,  so the Company cannot be certain that it is aware of
all potentially  relevant pending applications and it is not possible to predict
with any  certainty  the  scope of claims  that  could  issue  from such a third
party's pending  application.  The Company anticipates that an interference will
be  declared  between  one  or  more  of  its  TCR  Peptide   technology  patent
applications  and  those  of  one  or  more  of its  competitors  including  the
above-references  patent of Immune Response Corporation to determine priority of
invention,  which could  result in  substantial  cost to the Company even if the
eventual  outcome  is  favorable.  It is not  possible  to know in  advance  the
invention  dates that such other  parties  may be able to prove,  so the Company
cannot know whether its or its licensors' inventors are the first for inventions
covered by their pending  patent  applications  or that it or its licensors were
the first to file patent applications for such inventions. A judgment adverse to
the  Company in any such patent  interference,  litigation  or other  proceeding
could materially  adversely affect the Company's  business,  financial condition
and results of operation,  and its expense may be substantial whether or not the
Company is successful.

         Connetics also relies on trade secrets and  proprietary  know-how.  The
Company   requires  its  employees,   consultants  and  advisors  to  execute  a
confidentiality  agreement providing that all proprietary  information developed
or made known to the individual  during the course of the  relationship  will be
kept confidential and not used or disclosed to third parties except in specified
circumstances.  The agreements also provide that all inventions  conceived by an
employee (or  consultant or advisor to the extent  appropriate  for the services
provided) during the course of the relationship  shall be the exclusive property
of the Company,  other than  inventions  unrelated to the Company and  developed
entirely on the individual's own time. There can be no assurance,  however, that
these  agreements will provide  meaningful  protection or adequate  remedies for
misappropriation of the Company's trade secrets in the event of unauthorized use
or disclosure of such information.

MARKETING AND SALES

         The  Company's  business  strategy  is  that  Connetics  should  retain
marketing  rights for products in the areas of  rheumatology  and dermatology in
the  United  States.  The  Company  believes  that a large,  general  sales  and
marketing  infrastructure  is  not  required  to  effectively  and  successfully
maximize  the  commercial  potential  of  products in the  changing  health care
market,  and in particular  products directed toward focused,  specialty markets
such as the treatment of connective tissue  disorders.  The Company is targeting
its initial commercial  activities at rheumatologists and dermatologists,  which
can be served by a focused and specialized marketing  organization. The

                                      -35-

<PAGE>

Company has begun to develop such a commercial  organization with the deployment
of its initial 14 sales representatives. This sales organization will market the
Company's in-licensed and internally developed products. With regard to Ridaura,
the  Company  has a  transitional  services  agreement  with  SmithKline  ending
December 31, 1997  whereby  SmithKline  is  performing  order entry,  packaging,
shipping,  invoicing and credit and collection services for Ridaura on behalf of
the Company.  The Company  currently  intends to transition  these  functions by
January 1998 to a third party vendor.  The Company  believes these initial sales
representatives  will form the core of its sales force, and it expects to expand
the sales force as it prepares to introduce additional products.

         Outside the United  States,  the  Company's  strategy  is to  establish
development,   marketing  and   distribution   agreements  with   pharmaceutical
companies. The Company is engaged in discussions with a number of pharmaceutical
companies  regarding  marketing  and sales  alliances for both ConXn and its TCR
Peptide products for the European and Asian markets.

         As of  October  31,  1997,  the  Company  had 18  employees  devoted to
marketing and sales.

MANUFACTURING

         The Company  contracts  with  independent  sources to  manufacture  its
products,  which  enables  the  Company  to focus on its  product  and  clinical
development strengths,  minimize fixed costs and capital expenditures,  and gain
access to advanced  manufacturing  process  capabilities.  Gamma  interferon  is
manufactured by Genentech and Parke-Davis.  ConXn(TM) has been  manufactured for
Connetics under contract with four outside vendors:  BASF Bioresearch  Corp. for
fermentation,   Scios  Nova,  Inc.  for  purification,   Chesapeake   Biological
Laboratory for filling and Tektagen,  Inc. for testing. TCR peptide vaccines are
manufactured  by American  Peptide  Company and Multiple  Peptide  Systems.  The
Company is in discussions with additional manufacturers who can supply ConXn(TM)
and TCR Peptides for clinical and commercial  uses.  Ridaura is  manufactured by
SmithKline (in final  finished  package form) under an agreement with an initial
term through December 2001.  Betamathasone  mousse is manufactured for Connetics
by CCL Pharmaceuticals.

         The Company's  strategy is to continue to use manufacturing  agreements
for the production of its current and future products.

COMPETITION

         The  biopharmaceutical  industry  is highly  competitive.  The  Company
believes that there are numerous  pharmaceutical and biotechnology companies and
academic   research  groups   throughout  the  world  engaged  in  research  and
development efforts with respect to therapeutic products targeted at diseases or
conditions  addressed by the Company.  There can be no assurance that such other
companies  and  research  institutions  will not complete  the  development  and
regulatory approval process sooner and, therefore, market their products earlier
than  the  Company.  Many  of  these  institutions  have  substantially  greater
financial,  marketing and human  resources  and  development  capabilities  than
Connetics.   Technological  developments  by  competitors,   earlier  regulatory
approval for marketing  competitive products or superior marketing  capabilities
possessed by competitors could adversely affect the commercial  potential of the
Company's products. In particular, with respect to the TCR Peptides, the Company
is aware that other companies and research  institutions are engaged in research
and  development  efforts  and are in various  stages of  clinical  trials  with
respect to rheumatoid arthritis and other autoimmune diseases.

         With regard to Ridaura,  there are numerous products on the market, and
under development,  for the treatment of rheumatoid  arthritis.  There can be no
assurance  that Ridaura will  continue to be utilized by  physicians  over other
rheumatoid   arthritis  products,   or  that  Ridaura  will  continue  to  offer
cost-effective  alternative to competing  therapies.  In addition,  although the
Company  believes  that  there will be a  continued  role for  products  such as
Ridaura,  the market for rheumatoid  arthritis will likely change based upon new
product  introductions,  which  could  have a  material  adverse  effect  on the
Company's sales of Ridaura.

         Connetics  believes that  competitive  factors in its industry  include
scientific and technological expertise, managerial competence in identifying and
pursuing  product  in-licensing  and  acquisition   opportunities,   operational

                                      -36-

<PAGE>

competence in developing,  protecting,  manufacturing and marketing products and
obtaining timely  regulatory  agency  approvals,  and financial  resources.  The
Company  intends to compete on the basis of the quality and  exclusivity  of its
products,  combined with the  effectiveness  of its marketing and sales efforts.
Competing successfully will depend on the Company's continued ability to attract
and retain skilled and experienced  personnel,  to develop and secure the rights
to  pharmaceutical  products and  compounds  and to exploit  these  products and
compounds  commercially  prior to the  development  of  competitive  products by
others. The Company expects that there will be continued  competition for highly
qualified scientific, technical and managerial personnel.

GOVERNMENT REGULATION

         FDA  Regulation  and  Product  Approval.   Regulation  by  governmental
entities in the United States and other  countries will be a significant  factor
in the production and marketing of any pharmaceutical  products which are or may
be  developed  by  the  Company.  It is  expected  that  all  of  the  Company's
pharmaceutical   products  will  require  regulatory  approval  by  governmental
agencies  prior  to  commercialization.   In  particular,  human  pharmaceutical
therapeutic  products are subject to rigorous  preclinical and clinical  testing
and other approval procedures by the FDA in the United States and similar health
authorities  in foreign  countries.  Various  federal and, in some cases,  state
statutes and  regulations  also govern or influence the  manufacturing,  safety,
labeling, storage, record keeping and marketing of such pharmaceutical products.
The process of obtaining  these  approvals and the  subsequent  compliance  with
appropriate  federal and foreign statutes and regulations are time-consuming and
require the expenditure of substantial resources.

         Generally, in order to obtain FDA approval for a new therapeutic agent,
a company first must conduct preclinical studies in the laboratory and in animal
model systems to gain  preliminary  information  on the agent's  efficacy and to
identify  any  safety   problems.   "Preclinical"   studies  include   toxicity,
pharmacokinetic  and  efficacy  testing in vitro and in animals and  chemical or
biological  formulation work in preparation for submission of the necessary data
to  comply  with  applicable  regulations  prior  to the  commencement  of human
testing.   The  results  of  these  studies  are  submitted  as  a  part  of  an
investigational new drug application  ("IND"),  which the FDA must review before
human  clinical  trials of an  investigational  drug can start.  The Company has
filed and will  continue  to be  required  to sponsor  and file INDs and will be
responsible  for initiating  and overseeing the clinical  studies to demonstrate
the  safety and  efficacy  that are  necessary  to obtain  FDA  approval  of its
products.  Clinical  trials are normally done in three phases and generally take
two to five years, but may take longer, to complete.  "Phase I trials" generally
involve  administration  of a product to a small  number of persons to determine
safety,  tolerance  and  pharmacokinetic  characteristics.  "Phase I/II  trials"
generally  involve  administration of a product to a small number of persons who
have the targeted  disease to determine  safety,  tolerance and  pharmacokinetic
characteristics  and/or to obtain  preliminary  evidence of efficacy.  "Phase II
trials"  generally  involve  administration  of a product to a limited number of
patients  with a particular  disease to determine  dosage,  efficacy and safety.
"Phase III trials"  generally  examine the  clinical  efficacy  and safety in an
expanded patient  population at multiple clinical sites. At least one such trial
is required (but usually two are required) for FDA approval to market a drug.

         After  completion of clinical trials of a product,  the Company will be
required to file a new drug application ("NDA"), if the product is classified as
a new drug,  or a  biologic  license  application  ("BLA"),  if the  product  is
classified as a biologic,  and receive FDA approval before commercial  marketing
of the product.  The testing and approval processes require substantial time and
effort  and there can be no  assurance  that any  approval  will be granted on a
timely basis,  if at all.  While the Company will  endeavor to secure  expedited
review and approval  when  possible,  NDAs and BLAs can take between one and two
years to be reviewed by the FDA,  and can take longer if  significant  questions
arise  during  the review  process.  While  recent  legislative  and  regulatory
initiatives  have focused on the need to reduce FDA review and  approval  times,
the ultimate  impact of such  initiatives  on the Company's  products  cannot be
certain.  If questions  arise during the FDA review  process,  approval can take
more than five years. Even if FDA regulatory clearances are obtained, a marketed
product  is subject to  continual  review,  and later  discovery  of  previously
unknown   problems  or  failure  to  comply  with  the   applicable   regulatory
requirements  may  result in  restrictions  on the  marketing  of a  product  or
withdrawal of the product from the market,  recalls,  seizures,  injunctions  or
criminal  sanctions.  For marketing outside the United States,  the Company will
also be subject to foreign  regulatory  requirements  governing  human  clinical
trials,  manufacturing and marketing approval for pharmaceutical  products.  The
requirements  governing  the  conduct of  clinical  trials,  product  licensing,
pricing and reimbursement vary widely from country to country.

                                      -37-

<PAGE>

         Third  Party  Reimbursement  and Health  Care  Reform.  The  commercial
success  of the  Company's  products  under  development  will be  substantially
dependent   upon  the   availability   of  government  or  private   third-party
reimbursement  for the use of such  products.  There  can be no  assurance  that
Medicare,  Medicaid,  health  maintenance  organizations  and other  third-party
payers will authorize or otherwise budget such reimbursement.  Such governmental
and third  party  payers are  increasingly  challenging  the prices  charged for
medical  products and services.  If the Company succeeds in bringing one or more
of its  development  products  to market,  there can be no  assurance  that such
products  will  be  viewed  as  cost-effective  or  that  reimbursement  will be
available to consumers or will be sufficient to allow the Company's  products to
be marketed on a competitive basis.  Furthermore,  federal and state regulations
govern or  influence  the  reimbursement  to health care  providers  of fees and
capital  equipment  costs  in  connection  with  medical  treatment  of  certain
patients.  In response to concerns  about the rising  costs of advanced  medical
technologies,  the current  administration of the federal  government has in the
past publicly stated its desire to reform health care, including the possibility
of price controls and revised reimbursement  policies;  while the administration
is no longer  pursuing  major  initiatives,  there can be no assurance  that any
future  actions  taken by the  administration  with regard to health care reform
will not have a material adverse effect on the Company. If any actions are taken
by the  administration,  such actions could  adversely  affect the prospects for
future sales of the  Company's  products.  Further,  to the extent that these or
other  proposals  or reforms  have a material  adverse  effect on the  Company's
ability to secure  funding for its  development  or on the  business,  financial
condition  and   profitability   of  other   companies   that  are   prospective
collaborators  for certain of the Company's  product  candidates,  the Company's
ability to develop or  commercialize  its product  candidates  may be  adversely
affected.

         Given recent government initiatives directed at lowering the total cost
of health care throughout the United States, it is likely that the United States
Congress and state legislatures will continue to focus on health care reform and
the  cost of  prescription  pharmaceuticals,  as well  as on the  reform  of the
Medicare and Medicaid  systems.  The Company  cannot  predict the  likelihood of
passage of  federal  and state  legislation  related  to health  care  reform or
lowering   pharmaceutical   costs.   In  certain   foreign  markets  pricing  of
prescription pharmaceuticals is already subject to government control. Continued
significant  changes in the U.S.  or foreign  health care  systems  could have a
material adverse effect on the Company's business.

         Environmental  Regulation.   The  Company's  research  and  development
activities  involve the  controlled  use of hazardous  materials,  chemicals and
various  radioactive  materials.  The Company is subject to  federal,  state and
local laws and regulations governing the use, storage,  handling and disposal of
such materials and certain waste  products.  Although the Company  believes that
its safety  procedures for handling and disposing of such materials  comply with
the standards prescribed by state, federal, and local laws and regulations,  the
risk of  accidental  contamination  or injury  from  these  materials  cannot be
completely  eliminated.  In the event of such an accident,  the Company could be
held  liable for any  damages  that result and any  liability  could  exceed the
resources of the Company. There can be no assurance that the Company will not be
required  to incur  significant  costs to  comply  with  environmental  laws and
regulations  as its research  activities  are increased or that the  operations,
business and future  profitability of the Company will not be adversely affected
by current or future environmental laws and regulations.

<TABLE>
SCIENTIFIC ADVISORY BOARD AND OTHER ADVISORS

         Connetics  utilizes various advisors to provide  expertise and critical
review of its  programs.  For advice on and review of its current and  long-term
scientific  planning,  research and  development,  the Company has established a
Scientific  Advisory Board ("SAB")  consisting of  distinguished  scientists and
clinicians  with  expertise in biologic  processes and diseases that involve the
connective tissues of the body. All of the individuals on the SAB are recognized
as leading authorities in their fields.

         SAB members  consult with and meet  informally  with management and key
scientific  employees of the Company on a frequent basis. The members of the SAB
are as follows:

<CAPTION>
NAME                                                  POSITION

<S>                                                   <C>
Edward P. Amento, M.D...........................      Consultant, Molecular Medicine Research, Inc.

                                      -38-

<PAGE>

Eugene A. Bauer, M.D............................      Dean, Stanford University School of Medicine
Yueh-Hsiu Chien, Ph.D...........................      Assistant Professor, Stanford University School of Medicine
Arthur Z. Eisen, M.D............................      Professor, Washington University School of Medicine, Barnes Hospital
Philip C. Hanawalt, M.D.........................      Professor of Biological Sciences and Dermatology, Stanford
                                                      University and Stanford University School of Medicine
Gerald T. Nepom, M.D., Ph.D.....................      Director, Virginia Mason Research Center Professor, University of
                                                      Washington School of Medicine, Seattle
Brian Seed, Ph.D................................      Professor, Harvard Medical School (Massachusetts General Hospital)
</TABLE>

         Each member of the SAB has entered into an  agreement  with the Company
covering the terms of his position as a member of the SAB. Each member  provides
services  on an  as-needed  basis.  Four  members of the SAB have  entered  into
separate agreements with the Company covering additional  consultation above and
beyond  their  activities  as SAB  members.  Certain SAB members hold options to
purchase or have purchased Common Stock of the Company. In addition,  members of
the SAB receive a fee of $1,000 for attending any SAB meeting and are reimbursed
for out-of-pocket  expenses  incurred in attending each meeting.  All members of
the SAB are  employed  by  institutions  other  than  the  Company  and may have
commitments to, or consulting or advisory  agreements  with, other entities that
may limit their availability to the Company.

         For its preclinical and clinical  development  programs the Company has
established  relationships  with several  contract  research  organizations  and
practicing physicians.

Employees

         The Company had 72 full-time employees at October 31, 1997, of which 35
are engaged in, or directly  support,  the  Company's  research and  development
activities.  The Company also uses outside  consultants.  The Company  considers
relations  with its  employees to be good.  None of the  Company's  employees is
covered by a collective bargaining agreement.

Properties

         Connetics  currently  leases   approximately   23,500  square  feet  of
laboratory and office space at 3400 West Bayshore Road in Palo Alto, California.
The Company  leases this space under a master lease  agreement that commenced in
August  1996 and will  expire  in July  1999  with a  renewal  option  that,  if
exercised,  would  extend  the term of the lease to the year 2001.  The  Company
currently  pays base monthly rent of $45,825 for this space and has the right to
use  this  space  for   laboratory   research  and   development,   storage  and
distribution, offices, marketing and other related uses. The Company also leases
approximately  3,100 square feet of office space at 2483 East Bayshore  Road, in
Palo Alto,  California.  The Company  leases this space under an agreement  that
expires March 31, 1999.  The Company  currently pays base monthly rent of $9,300
for this space. The Company  believes that its existing  facilities are adequate
to meet its  requirements  for the near term and that  additional  space will be
available on commercially reasonable terms if needed.

                                      -39-

<PAGE>

<TABLE>
                                   MANAGEMENT

Executive Officers and Directors

         The following table sets forth certain  information with respect to the
executive officers and directors of the Company as of November 15, 1997:

<CAPTION>
Name                                                Age   Position(s) with the Company
- ----                                                ---   ----------------------------
<S>                                                 <C>   <C>
   
G. Kirk Raab(1).............................        62    Chairman of the Board
Thomas G. Wiggans...........................        45    President, Chief Executive Officer and Director
W. Scott Harkonen, M.D......................        45    Sr. Vice President, Product Development and Operations
Richard J. Hammel, Ph.D.....................        54    Vice President, Commercial Development
John L. Higgins.............................        27    Vice President, Finance and Administration and Chief
                                                          Financial Officer
David A. Lowin, Esq.........................        43    Vice President, Intellectual Property, Chief Patent
                                                          Counsel and Assistant Secretary
Ernst H. Rinderknecht, Ph.D.................        50    Vice President, Process Sciences and Manufacturing
Alexander E. Barkas, Ph.D.(1)...............        50    Director
Eugene A. Bauer, M.D........................        55    Director
Brian H. Dovey(2)...........................        56    Director
John C. Kane(2) ............................        57    Director
Thomas D. Kiley, Esq.(1)....................        54    Director
Kenneth B. Plumlee(1).......................        37    Director
Joseph J. Ruvane, Jr.(2)....................        72    Director
    
<FN>
- ----------


(1)   Member of the Audit Committee.
(2)   Member of the Compensation Committee.
</FN>
</TABLE>

         G. Kirk Raab has served as the  Chairman of the Board of  Directors  of
the Company  since October  1995.  From February 1985 to January 1990,  Mr. Raab
served  as  President  and  Chief  Operating  Officer  of  Genentech,   Inc.,  a
biotechnology  company,  and  from  January  1990 to July  1995,  he  served  as
Genentech's President and Chief Executive Officer. Prior to joining Genentech in
1985, Mr. Raab was President,  Chief Operating Officer, and a Director of Abbott
Laboratories,  and before that held executive positions with Beecham Group, A.H.
Robins and Pfizer, Inc. He is also Chairman of Shaman Pharmaceuticals,  Inc. and
a director  of  Applied  Imaging  Inc.,  as well as five  private  biotechnology
companies.  He is a  trustee  of KQED,  the San  Francisco  Public  Broadcasting
station. He received a B.A. from Colgate University.

         Thomas G. Wiggans has served as President,  Chief Executive Officer and
as a director of the Company since July 1994.  From February 1992 to April 1994,
Mr. Wiggans served as President and Chief Operating Officer of CytoTherapeutics,
a  biotechnology  company.  From 1980 to February  1992,  Mr.  Wiggans served at
various  positions at Ares-Serono  Group, a  pharmaceutical  company,  including
President of its U.S.  pharmaceutical  operations  and Managing  Director of its
U.K.  pharmaceutical  operations.  From 1976 to 1980 he held  various  sales and
marketing  positions  with Eli  Lilly & Co.,  a  pharmaceutical  company.  He is
currently a director of the Biotechnology Industry Organization, and a member of
the governing body of its emerging company section. He was also President of the
Board of Directors of the Association of  Biotechnology  Companies.  Mr. Wiggans
received  his B.S.  degree in  Pharmacy  from the  University  of Kansas and his
M.B.A. from Southern Methodist University.

         W.  Scott  Harkonen  has  served  as  Senior  Vice  President,  Product
Development  and Operations of the Company since September 1995. From March 1991
to August 1995, Dr.  Harkonen served as Vice President of medical and regulatory
affairs at Univax  Biologics,  Inc., a biotechnology  company.  From May 1989 to
February 1991, he served as Vice  President,  medical and regulatory  affairs at
Scios Nova, Inc., a biotechnology  company. He is

                                      -40-

<PAGE>

currently   a   director   of   Planet    Biotechnology,    a    privately-owned
biopharmaceutical  company. He received his B.A. and M.D. from the University of
Minnesota and M.B.A. from the University of California, Berkeley.

         Richard J. Hammel has served as Vice President,  Commercial Development
of the Company since  September  1995. From September 1993 to September 1995, he
served  at  Matrix  Pharmaceutical,  Inc.,  a  biotechnology  company,  as  Vice
President  of  Business  Development,  Sales and  Marketing.  From March 1992 to
September  1995,  Dr.  Hammel  served  as  a  Senior   Consultant  to  Marketing
Corporation of America, a marketing company.  From 1986 to March 1992, he served
at Glaxo, Inc., a pharmaceutical  company, most recently as Director of Business
Development.  He  received  a B.S.,  M.S.  and  Ph.D.  from  the  University  of
Minnesota.

         John  L.   Higgins   has  served  as  Vice   President,   Finance   and
Administration  and Chief  Financial  Officer since  September 1997. From August
1994 to  September  1997,  he was a member of the  management  team at  BioCryst
Pharmaceuticals,  Inc.,  serving most  recently as Executive  Vice  President of
Corporate Development.  From July 1992 to July 1994, Mr. Higgins was a member of
the health care banking team of Dillon,  Read & Co. Inc., an investment  banking
firm.  While at Dillon,  Read, he focused on financing and advisory  assignments
for  biotechnology  and managed care companies.  He received a B.A. in Economics
from Colgate University, where he serves on the Board of Trustees.

         David A. Lowin has served as Vice President,  Intellectual Property and
Chief Patent  Counsel of the Company since January 1995 and Assistant  Secretary
of the Company since July 1995.  From 1982 to January 1995,  Mr. Lowin served at
Syntex  Corporation,  a  pharmaceutical  company,  as Assistant  Director of the
Patent Law  Department.  From 1979 to 1982,  he served as an  associate at Owen,
Wickersham & Erickson.  He received a B.A.  from Hobart  College and a J.D. from
the Franklin Pierce Law Center.

         Ernst H.  Rinderknecht  has served as Vice President,  Process Sciences
and  Manufacturing  of the Company since  September 1994. From 1980 to September
1994, Dr. Rinderknecht  worked at Genentech in various positions,  since 1987 as
Staff  Scientist.  He received  his M.S.  from the Swiss  Federal  Institute  of
Technology  (ETH)  and  Ph.D.in  Biochemistry  from the  University  of  Zurich,
Switzerland.

         Alexander  E.  Barkas  has served as a director  of the  Company  since
November 1993. He also served as Acting CEO of the Company from November 1993 to
July 1994 and as Chairman of the Board of Directors  from August 1994 to October
1995. Dr. Barkas has been a Managing  Partner of Prospect  Venture  Partners,  a
venture capital  investment  firm,  since June 1997. He was previously a partner
with Kleiner Perkins Caufield & Byers (KPCB), a venture capital investment firm,
from  September  1991 to June 1997.  Dr.  Barkas  also serves as Chairman of the
Board  of  Directors  of  Geron   Corporation  and  as  a  director  of  several
privately-held medical technology companies.

         Eugene A. Bauer has served as a director  since  January  1996 and also
served as a director from the Company's  inception in February 1993 to September
1995.  Dr.  Bauer has been Dean of the  Stanford  University  School of Medicine
since 1995, Professor, Department of Dermatology,  Stanford University School of
Medicine since 1988, and Chief of the Dermatology Service at Stanford University
Hospital  from  1988  to  1995.  Previously  he was a  professor  at  Washington
University  School of Medicine  from 1982 to 1988.  He has served as chairman of
two National  Institutes of Health study  sections of the National  Institute of
Arthritis  and  Musculoskeletal  and Skin  Diseases  and has served on boards of
scientific  counselors  for the National  Cancer  Institute and for the National
Institute of Arthritis and Musculo-Skeletal and Skin Diseases.

         Brian H. Dovey has served as a director of the Company  since  February
1995.  Mr.  Dovey has been a general  partner  of Domain  Associates,  a venture
capital  investment firm, since 1988. From 1986 to 1988, Mr. Dovey was President
of Rorer Group,  Inc., a  pharmaceutical  company.  Mr. Dovey also serves on the
board of directors of Creative  BioMolecules,  Inc.,  Geron  Corporation,  NABI,
Inc., and Vivus, Inc., all publicly-held  companies and as a director of several
privately-held companies.

         John C. Kane has served as a director of the Company  since March 1997.
Mr. Kane joined  Cardinal  Health,  Inc., a  healthcare  services  provider,  as
President and Chief Operating  Officer in March 1993. Prior to joining Cardinal,
Mr.  Kane  served in various  operational  and  management  positions  at Abbott
Laboratories  for 19

                                      -41-

<PAGE>

years, most recently as President of Ross Laboratories  Division.  Mr. Kane is a
director  of  Cardinal  Health,  Inc.  and  serves on several  medical  advisory
councils and educational foundations.

         Thomas D. Kiley has served as a director of the Company since  November
1993.  He has been  self-employed  since  1988 as an  attorney,  consultant  and
investor.  From 1980 to 1988, he was an officer of Genentech,  serving variously
as Vice President and General Counsel, Vice President for Legal Affairs and Vice
President  for  Corporate  Development.  From 1969 to 1980,  he was with the Los
Angeles  law firm of Lyon & Lyon and was a  partner  in such  firm  from 1975 to
1980. Mr. Kiley is also a director of  Cardiogenesis,  Inc., Geron  Corporation,
Pharmacyclics, Inc. and certain private biotechnology and other companies.

         Kenneth B. Plumlee has served as a director  since  January  1997.  Mr.
Plumlee is currently a principal of Waterpath Investments,  a investment company
focusing on health care information  technology and consumer health  information
services, which he founded in 1996. Mr. Plumlee also founded Access Health Inc.,
a healthcare  information  company,  in October 1988 and served as its President
from the Company's  founding  until June 1996.  Mr. Plumlee also served as Chief
Executive  Officer of Access Health Inc. through  September 1996 and as Chairman
until April 1997 and  continues to serve as a director.  From 1986 to 1988,  Mr.
Plumlee was responsible  for the development of Ask-A-Nurse at Adventist  Health
System, a healthcare company, which was later acquired by Access Health Inc.

         Joseph J. Ruvane,  Jr. has served as a director  since  November  1995.
From 1981 to 1988,  Mr.  Ruvane was  President,  Chief  Executive  Officer,  and
Chairman of Glaxo,  Inc., a  pharmaceutical  company.  He has also served as the
executive  director of Glaxo  Holdings PLC. Mr. Ruvane  currently  serves on the
board of Intercardia,  a public company and serves on the board of Pozen Inc., a
private  company.  He serves on the  Thelonious  Monk Institute of Jazz National
Advisory  Board  and on the  University  of  Virginia  Art and  Sciences  Alumni
Council.

Board of Directors Committees, Compensation of Directors and Other Information

         The Company  currently has authorized nine directors.  Each director is
elected for a period of one year at the Company's annual meeting of stockholders
and serves until the next annual  meeting or until his successor is duly elected
and  qualified.  The executive  officers serve at the discretion of the Board of
Directors.  There are no family  relationships  among  any of the  directors  or
executive officers of the Company.

         The  Board of  Directors  has an  Audit  Committee  (consisting  of Mr.
Barkas,  Mr. Raab,  Mr. Kiley and Mr.  Plumlee),  which  reviews the results and
scope of the audit and other  services  provided  by the  Company's  independent
accountants. The Board of Directors also has a Compensation Committee, which was
formed in June 1994 to review and approve the  compensation and benefits for the
Company's executive officers,  administer the Company's stock purchase and stock
option plans and make  recommendations to the Board of Directors  regarding such
matters.  The  committee  is currently  composed of Mr. Kane,  Mr. Dovey and Mr.
Ruvane.  In  addition,  although  no longer a  member,  Mr.  Raab  served on the
Compensation  Committee through October 1996. Petri T. Vainio, a former director
of the Company, also served on the Compensation Committee during 1996.

         In October 1995, the Company  entered into a Consulting  Agreement with
G. Kirk Raab under  which Mr.  Raab  serves as a  director,  consultant  and the
Chairman of the Company's Board of Directors.  Pursuant to such  agreement,  the
Company  pays Mr. Raab an annual fee of  $150,000.  Mr. Raab was also granted an
option to purchase  67,450 shares of the  Company's  Common Stock at an exercise
price of $0.45 per share.  Such shares vest at the rate of 8,431 shares on April
1, 1996 and 1,405 shares each month  thereafter.  In January 1996,  Mr. Raab was
granted an additional  option to purchase 50,000 shares of the Company's  Common
Stock at an exercise price of $11.00 per share.  Such shares vest at the rate of
6,250 shares on July 29, 1996 and 1,041 shares each month  thereafter,  provided
Mr. Raab  continues his service as a director or  consultant to the Company.  In
January  1997,  Mr. Raab was  granted an  additional  option to purchase  25,000
shares of the Company's  Common Stock at an exercise  price of $7.125 per share.
In July 1997, Mr. Raab was granted an additional option to purchase 5,000 shares
of the Company's  Common Stock at an exercise price of $7.75 per share. Mr. Raab
is  reimbursed  for  out-of-pocket  expenses  incurred  in  connection  with his
attendance  at meetings of the Board of  Directors  and in  connection  with his
consulting activities on behalf of the Company.

                                      -42-

<PAGE>

         Non-employee  directors currently receive $1,000 per quarter and $1,000
per meeting  for  services  provided in that  capacity  and are  reimbursed  for
out-of-pocket expenses incurred in connection with attendance at meetings of the
Board of Directors.

         Non-employee directors of the Company are automatically granted options
to purchase  shares of the Company's  Common Stock  pursuant to the terms of the
Company's 1995  Directors'  Stock Option Plan. The Directors' Plan provides that
each  person  who  becomes a  non-employee  director  of the  Company  after the
Company's initial public offering shall be granted a non-statutory  stock option
to purchase  30,000  shares of Common Stock (the "First  Option") on the date on
which  the  optionee  first  becomes a  non-employee  director  of the  Company.
Thereafter,  on the date of each annual  meeting of the Company's  stockholders,
each  non-employee  director  (including  directors who were not granted a First
Option prior to the date of such annual  meeting)  shall be granted an option to
purchase 7,500 shares of Common Stock (a "Subsequent  Option") if, on such date,
he or she has  served  on the  Company's  Board of  Directors  for at least  six
months.  The  Directors'  Plan  provides  that the  First  Option  shall  become
exercisable in  installments  as to 25% of the total number of shares subject to
the First Option on each of the first, second, third and fourth anniversaries of
the date of grant of the First  Option;  each  Subsequent  Option  shall  become
exercisable  in full on the  first  anniversary  of the  date of  grant  of that
Subsequent  Option.  The exercise  price of all stock options  granted under the
Directors'  Plan  shall  be equal  to the  fair  market  value of a share of the
Company's  Common Stock on the date of grant of the option.  Directors  are also
eligible to receive stock option grants under the Company's 1994 Stock Plan. See
"Stock Plans."

Limitation of Liability and Indemnification Matters

         The  Company's  Certificate  of  Incorporation  limits the liability of
directors to the maximum extent permitted by Delaware law. Delaware law provides
that a director of a  corporation  will not be  personally  liable for  monetary
damages for breach of such  individual's  fiduciary  duties as a director except
for  liability  (i) for any  breach of such  director's  duty of  loyalty to the
corporation,  (ii)  for acts or  omissions  not in good  faith  or that  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 a director derives an improper personal benefit.

         The  Company's  Bylaws  provide  that the Company  will  indemnify  its
directors and may indemnify its officers, employees and other agents to the full
extent  permitted by law. The Company  believes that  indemnification  under its
Bylaws  covers  at  least  negligence  and  gross  negligence  on the part of an
indemnified  party and permits the  Company to advance  expenses  incurred by an
indemnified  party in  connection  with the defense of any action or  proceeding
arising out of such party's status or service as a director,  officer,  employee
or other agent of the Company  upon an  undertaking  by such party to repay such
advances  if it is  ultimately  determined  that such party is not  entitled  to
indemnification.

         The   Company   has   entered  or   intends  to  enter  into   separate
indemnification  agreements  with  each of its  directors  and  officers.  These
agreements  require the Company,  among other things, to indemnify such director
or officer against expenses (including  attorney's fees),  judgments,  fines and
settlements (collectively,  "Liabilities") paid by such individual in connection
with any action,  suit or proceeding arising out of such individual's  status or
service as a director or officer of the Company (other than Liabilities  arising
from willful misconduct or conduct that is knowingly  fraudulent or deliberately
dishonest)  and to advance  expenses  incurred by such  individual in connection
with  any  proceeding  against  such  individual  with  respect  to  which  such
individual  may be  entitled  to  indemnification  by the  Company.  The Company
believes  that  its  Certificate  of  Incorporation  and  Bylaw  provisions  and
indemnification agreements are necessary to attract and retain qualified persons
as directors and officers.

         At  present  the  Company  is not aware of any  pending  litigation  or
proceeding  involving  any director,  officer,  employee or agent of the Company
where indemnification will be required or permitted. The Company is not aware of
any  threatened  litigation or proceeding  that might result in a claim for such
indemnification.

                                      -43-

<PAGE>


<TABLE>
Executive Compensation

         The following table sets forth certain compensation paid by the Company
during the fiscal  years ended  December  31, 1996 and  December 31, 1995 to the
Company's  Chief  Executive  Officer  and the  Company's  four other most highly
compensated  executive  officers  during fiscal 1996  (collectively,  the "Named
Executive Officers"):

                                            SUMMARY COMPENSATION TABLE
<CAPTION>

                                                                        Annual Compensation
                                           Fiscal Year   -------------------------------------------------
      Name and Principal Position           Ended                                         Other Annual            All Other
      ---------------------------        December 31,     Salary($)      Bonus($)      Compensation($) (1)      Compensation($)
                                         ------------     ---------     ---------     --------------------     ----------------

<S>                                          <C>          <C>            <C>               <C>                 <C>
Thomas G.  Wiggans.....................      1996         $270,833       $120,000          $3,163              $76,809 (2)
   President and Chief Executive             1995         $225,000        $20,000          $1,240              $25,959 (3)
    Officer

Edward P. Amento, M.D. (4).............      1996         $187,500        $95,000          $1,926             $144,472 (5)
   Formerly, Executive Vice President        1995         $226,155        $20,000              $0               $3,340 (6)
   of Scientific and Medical Affairs

W. Scott Harkonen......................      1996         $210,000        $26,000          $1,288                   $0
   Senior Vice President, Product            1995          $70,000        $40,782              $0              $20,262 (7)
   Development and Operations


Cynthia M. Butitta (8).................      1996         $175,000        $20,000            $612                   $0
   Formerly, Vice President, Finance         1995          $14,133          $0                 $0              $25,000 (9)
   and Administration and Chief
   Financial Officer

David A. Lowin, Esq....................      1996         $172,500        $30,000            $598                   $0
   Vice President, Intellectual              1995         $148,542        $25,000              $0                   $0
   Property and
   Chief Patent Counsel

Richard J. Hammel......................      1996         $165,000        $17,500          $1,613                   $0
   Vice President, Commercial                1995          $55,000        $10,000              $0                   $0
   Development
<FN>
- ---------------

(1)   Represents  term  life  insurance  premiums  paid by the  Company  for the
      benefit of the Named Executive Officer.

(2)   Represents  amount of principal  and interest  forgiven on a loan from the
      Company. See "Certain Relationships and Related Transactions."

(3)   Represents $253 for taxes paid in conjunction with a bonus and $25,706 for
      relocation expenses.

(4)   Resigned  from the  Company in October  1996,  but has been  retained as a
      consultant. See "Certain Relationships and Related Transactions."

(5)   Represents  $106,972 for taxes and  interest  paid in  conjunction  with a
      bonus and $37,500 in consulting fees.

(6)   Represents reimbursement for disability insurance paid by the executive.

(7)   Represents relocation and moving expenses.

(8)   Resigned from the Company in August 1997.

(9)   Represents bonus upon hire.

</FN>
</TABLE>
                                      -44-


<PAGE>

                        OPTION GRANTS IN LAST FISCAL YEAR


         There were no stock  options  granted to the Named  Executive  Officers
during  the  fiscal  year  ended  December  31,  1996.  In  addition,  no  stock
appreciation  rights were  granted to these  individuals  during the fiscal year
ended December 31, 1996.

<TABLE>
                 AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR
                        AND FISCAL YEAR-END OPTION VALUES

         The  following  table sets forth  information  for the Named  Executive
Officers  with respect to  exercises of options to purchase  common stock in the
fiscal year ended December 31, 1996.

<CAPTION>
                                                                Number of Shares                Value of Unexercised
                                                             Underlying Unexercised             in-the-Money Options
                                                           Options at Fiscal Year End          at Fiscal Year End(1)
                                                        --------------------------------- ---------------------------------
             Name                 Shares
             ----                 ------
                               Acquired on     Value
                               -----------     -----
                                 Exercise     Realized    Exercisable    Unexercisable      Exercisable    Unexercisable
                                 --------     --------    -----------    -------------      -----------    -------------
<S>                                <C>        <C>            <C>           <C>               <C>             <C>
Thomas G.  Wiggans.............      0           $0          42,624        103,518           $332,689        $807,979
Edward P. Amento ..............    6,000      $39,331         1,729         20,375            $13,495        $159,031
W. Scott Harkonen..............      0           $0          25,762         58,550           $201,078        $456,994
Cynthia M. Butitta.............      0           $0          20,398         54,921           $122,920        $330,959
David A.  Lowin, Esq...........      0           $0           9,180         22,296            $71,652        $174,025
Richard J. Hammel..............      0           $0          19,203         43,750           $149,883        $341,478
<FN>
- ----------

(1)   Based on the closing price of the  Company's  Common Stock on December 31,
      1996 as reported on the NASDAQ  National  Market ($8.25 per share),  minus
      the  per  share  exercise  price,  multiplied  by  the  number  of  shares
      underlying the option.
</FN>
</TABLE>

Stock Plans

         1994 Stock Plan

         The  Company's  1994 Stock Plan (the  "Stock  Plan") was adopted by the
Board of Directors and approved by the stockholders in August 1994. The Board of
Directors  initially  reserved 337,253 shares of Common Stock for issuance under
the 1994 Plan. An additional  1,011,759  shares were approved for issuance under
the 1994 Plan in September 1995 and in December 1995, the Stock Plan was amended
by the Board of Directors to comply with certain  requirements  of Rule 16b-3 of
the Securities  Exchange Act of 1934, as amended,  and the Internal Revenue Code
of 1986, as amended (the "Code"). An additional 150,988 shares were approved for
issuance in January  1996.  In May 1997,  the  Company's  stockholders  approved
amendments  to the  Stock  Plan  to  increase  the  number  of  shares  issuable
thereunder  to an  aggregate  of  2,000,000  and to allow for  option  grants to
non-employee  directors.  As of November 14, 1997,  options to purchase  277,460
shares of Common  Stock  had been  exercised,  options  to  purchase  a total of
1,600,204  shares were  outstanding  and 122,336 shares  remained  available for
future  grants.  As of November 14,  1997,  the  aggregate  fair market value of
shares subject to outstanding  options under the 1994 Plan was $5,200,633  based
upon the  closing  price of the Common  Stock as  reported  on The Nasdaq  Stock
Market on such date.

         The Stock  Plan  provides  for the grant to  employees  of the  Company
(including  officers and  directors) of  "incentive  stock  options"  within the
meaning of Section 422 of the Code, for the grant of nonstatutory  stock options

                                      -45-

<PAGE>

to employees, consultants and non-employee directors of the Company, and for the
issuance  of  shares of Common  Stock  directly  pursuant  to  Restricted  Stock
Purchase  Agreements.  To the  extent an  optionee  would  have the right in any
calendar year to exercise for the first time one or more incentive stock options
for shares having an aggregate fair market value (under all plans of the Company
and  determined  for each share as of the date the option to purchase  the share
was granted) in excess of $100,000,  any such excess options shall be treated as
nonstatutory  stock  options.   The  1994  Plan  is  not  a  qualified  deferred
compensation  plan under Section  401(a) of the Code,  and is not subject to the
provisions of the Employee Retirement Income Security Act of 1974, as amended.

         The  Administrator  selects the optionees and  determines the number of
shares to be subject  to each  option.  In making  such  determination,  certain
factors are taken into account, including the duties and responsibilities of the
optionee,  the value of the  optionee's  services,  the  optionee's  present and
potential  contribution  to the  success  of the  Company,  and  other  relevant
factors.

         The 1994 Plan may be  administered  by the Board of  Directors  or by a
committee (or committees) of the Board of Directors (the  "Administrator").  The
1994  Plan  is  currently  administered  by  the  Compensation  Committee.   The
Administrator  determines  the terms of options  granted  under the Stock  Plan,
including the number of shares subject to the option,  exercise price,  term and
exercisability;  provided,  however, that the maximum number of shares which may
be subject to options  granted to any one  employee  for any fiscal  year of the
Company  shall be 150,000,  subject to  adjustment as provided in the 1994 Plan.
The exercise price of all incentive  stock options  granted under the Stock Plan
must be at least  equal  to the fair  market  value of the  Common  Stock of the
Company on the date of grant.  The exercise price of any incentive  stock option
granted to an optionee who owns stock  representing  more than 10% of the voting
power of all classes of stock of the Company or any Parent or Subsidiary (a "10%
Stockholder")  must equal at least 110% of the fair  market  value of the Common
Stock on the date of grant. The exercise price of all nonstatutory stock options
must equal at least 85% of the fair market value of the Common Stock on the date
of grant;  provided,  however, that the exercise price of any nonstatutory stock
option  granted  to any Named  Executive  Officer  must be equal to at least one
hundred  percent (100%) of the fair market value of the Common Stock on the date
of grant. Payment of the exercise price may be made in cash, promissory notes or
other consideration determined by the Administrator.

         The term of a stock option  granted under the Stock Plan may not exceed
10 years;  provided,  however,  that the term may not exceed  five years for 10%
Stockholders. No option may be transferred by the optionee other than by will or
the laws of descent or  distribution.  Each option may be  exercised  during the
lifetime of the optionee only by such optionee. Options granted to each employee
under the Stock Plan  generally  become  exercisable at the rate of 12.5% of the
total  number of shares  subject to the options  after the six month period from
the date of grant, and approximately 2% each month thereafter.

         In the event of certain  changes in control of the  Company,  the Stock
Plan requires that each  outstanding  option be assumed or an equivalent  option
substituted by the successor corporation, unless the Administrator determines in
the exercise of its sole  discretion,  that the optionee  will have the right to
exercise  the  option as to some or all of the  shares  covered  by the  option,
including  shares as to which the option would not otherwise be exercisable,  in
which case each option will be exercisable for thirty (30) days from the date of
such  determination.  The  Administrator has the authority to amend or terminate
the Stock Plan as long as such action does not adversely  affect any outstanding
option and provided that stockholder approval shall be required for an amendment
to increase the number of shares subject to the Stock Plan, or any change in the
designation  of the class of  persons  eligible  to be  granted  options,  or an
increase in the annual limitation on grants to employees, or a material increase
in  benefits  accruing  to  participants  under the Stock Plan if the Company is
registered under Section 12 of the Exchange Act. If not terminated earlier,  the
Stock Plan will terminate in 2004.

         1995 Employee Stock Purchase Plan

         The Company's 1995 Employee  Stock Purchase Plan (the "Purchase  Plan")
was  adopted by the Board of  Directors  in  December  1995 and  approved by the
stockholders in January 1996. A total of 100,000 shares of Common Stock has been
reserved for issuance under the Purchase  Plan. As of November 14, 1997,  24,476
shares

                                      -46-

<PAGE>

had been purchased under the Purchase Plan by the Company's employees, including
its  executive  officers.  Directors  who are  not  executive  officers  are not
eligible to participate in the Purchase Plan.

         The Purchase  Plan,  which is intended to qualify  under Section 423 of
the Code, is implemented through a series of successive  offering periods,  each
with a maximum duration of 24 months.  Each offering period is comprised of four
purchase  periods,  each with a maximum  duration  of six  months.  The  current
offering  period began June 1, 1997 and will end on May 31,  1999.  The Purchase
Plan may be administered  by the Board of Directors or by a committee  appointed
by the Board of Directors. Employees (including officers and employee directors)
of the Company,  or of any majority owned subsidiary  designated by the Board of
Directors,  are eligible to  participate  if they are employed by the Company or
any such  subsidiary  for at least 20 hours per week and more than 5 months  per
year.  The Purchase  Plan permits  eligible  employees to purchase  Common Stock
through  payroll  deductions,   which  may  not  exceed  15%  of  an  employee's
compensation,  at a price equal to the lower of 85% of the fair market  value of
the Company's Common Stock at the beginning of the offering period or the end of
a purchase period.  Employees may end their participation in the offering at any
time  during the  offering  period,  and  participation  ends  automatically  on
termination  of  employment  with the  Company.  In addition,  participants  may
decrease their level of payroll deductions once during an offering period.

         The Purchase Plan provides that in the event of a merger of the Company
with or into another corporation or a sale of substantially all of the Company's
assets,  each  right to  purchase  stock  under the plan will be  assumed  or an
equivalent right  substituted by the successor  corporation  unless the Board of
Directors  shortens the offering  period so that  employees'  rights to purchase
stock under the plan are  exercised  prior to the merger or sale of assets.  The
Board of Directors has the power to amend or terminate the Purchase Plan as long
as such  action does not  adversely  affect any  outstanding  rights to purchase
stock thereunder.  If not terminated earlier, the Purchase Plan will have a term
of twenty years.

         1995 Director Stock Option Plan

         The 1995 Director Stock Option Plan (the "Directors' Plan") was adopted
by the Board of Directors in December 1995 and by the Company's  stockholders in
January  1996. A total of 150,000  shares of Common Stock has been  reserved for
issuance  under the Directors'  Plan.  The  Directors'  Plan is designed to work
automatically without  administration;  however, to the extent administration is
necessary, it will be performed by the Board of Directors.

         The  Directors'  Plan  provides  that each  person who first  becomes a
non-employee  director of the Company after the effective date of the Directors'
Plan will be granted a  nonstatutory  stock option to purchase  30,000 shares of
Common  Stock  (the  "First  Option")  on the date on which the  optionee  first
becomes a non-employee director of the Company.  Thereafter, on the date of each
Annual Meeting of the Company's shareholders at which non-employee directors are
elected to the Board, each person so elected  (including  directors who were not
eligible for a First Option)  shall be granted an additional  option to purchase
7,500  shares of Common  Stock (a  "Subsequent  Option") if he or she shall have
served on the Company's  Board of Directors for at least six months prior to the
date of such Annual  Meeting.  The  Directors'  Plan  provides  that the maximum
number of shares for which options may be granted under the  Directors'  Plan is
150,000 (the "Pool"). However, the Directors' Plan does not specify a maximum or
minimum  number  of  shares  for  which  options  may  be  granted  to  any  one
non-employee  director so long as the total number of shares so granted does not
exceed the Pool. No option granted under the Directors'  Plan is transferable by
the  optionee  other  than by will or the laws of  descent  or  distribution  or
pursuant  to  a  qualified   domestic   relations  order,  and  each  option  is
exercisable,  during the  lifetime  of the  optionee,  only by such  optionee or
permitted transferee.

         The  Directors'  Plan  provides  that the  First  Option  shall  become
exercisable in  installments  as to 25% of the total number of shares subject to
the First Option on each of the first, second, third and fourth anniversaries of
the date of grant of the First  Option;  each  Subsequent  Option  shall  become
exercisable  in full on the  first  anniversary  of the  date of  grant  of that
Subsequent  Option.  The exercise  price of all stock options  granted under the
Directors'  Plan  shall  be equal  to the  fair  market  value of a share of the
Company's Common Stock on the date of grant of the option. Options granted under
the Directors' Plan have a term of ten years.

                                      -47-

<PAGE>

         In the event of the  dissolution or liquidation of the Company,  a sale
of all or  substantially  all of the  assets of the  Company,  the merger of the
Company  with or into  another  corporation  in  which  the  Company  is not the
surviving corporation or any other capital reorganization in which more than 50%
of the shares of the Company  entitled to vote are exchanged,  the Company shall
give to each  nonemployee  director either (i) a reasonable time within which to
exercise the option,  including  any part of the option that would not otherwise
be exercisable, prior to the effectiveness of any such transaction at the end of
which time the Option shall terminate, or (ii) the right to exercise the option,
including  any part of the option that would not  otherwise be  exercisable  (or
receive a substitute option with comparable terms) as to an equivalent number of
shares of stock of the  corporation  succeeding  the  Company or  acquiring  its
business by reason of any such transaction.  The Board of Directors may amend or
terminate  the  Directors'  Plan;  provided,  however,  that no such  action may
adversely affect any outstanding option, and the provisions  regarding the grant
of options  under the plan may be  amended  only once in any  six-month  period,
other than to comport with changes in the Code or the Employee Retirement Income
Security Act of 1974, as amended. If not terminated earlier, the Directors' Plan
will have a term of ten years.

         401(k) Plan

         Effective August 1, 1994, the Company's Board of Directors  adopted the
Connetics  Corporation  401(k) Profit Sharing Plan, which is intended to qualify
under Sections 401(a) and 501 of the Code (the "401(k) Plan"). All employees who
are  employed  by the  Company  and who have  attained  age 21 are  eligible  to
participate in the 401(k) Plan.  The 401(k) Plan provides that each  participant
may contribute a percentage of his or her compensation, up to the maximum amount
provided by statute. The Company may also make discretionary contributions based
on a certain percentage of a participant's  contributions under the 401(k) Plan,
as determined by the Company, or such additional amounts as the Company may deem
appropriate.  To date,  the  Company  has not made any such  contributions.  The
401(k)  Plan is  intended  to  qualify  under  Section  401 of the  Code so that
contributions  to the Plan,  and income  earned on plan  contributions,  are not
taxable  to  participants  until  withdrawn  from the 401(k)  Plan,  and so that
contributions  by the Company,  if any,  will be  deductible by the Company when
made.  Employer  contributions  and the  investment  earnings  thereon are fully
vested  at  all  times.   Contributions  are  allocated  to  each  participant's
individual account,  which is invested in selected mutual funds according to the
directions of the participant.

                                      -48-

<PAGE>


                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         In June 1994,  the Company  entered into an employment  agreement  with
Thomas G. Wiggans,  the President  and Chief  Executive  Officer of the Company.
Pursuant  to such  agreement,  Mr.  Wiggans  receives  an annual  base salary of
$225,000,  which was raised in March 1996 to  $280,000  and is subject to annual
review.  In  consideration  of Mr.  Wiggans'  attainment of corporate  goals and
achievement of key milestones,  the  Compensation  Committee  awarded him a cash
bonus of  $80,000  in  February  1996,  upon the  successful  completion  of the
Company's  initial  public  offering and a cash bonus of $40,000 in January 1997
for the achievement of the Company's corporate goals for 1996. In addition,  Mr.
Wiggans  acquired  146,142 shares of Common Stock pursuant to a restricted stock
purchase  agreement in June 1994.  The shares were  released  from the Company's
repurchase  option at 1/10th in  December  1994 and are  released at 1/60th each
month thereafter.  The employment agreement also entitles Mr. Wiggans to receive
continuation of salary and benefits and  continuation of vesting with respect to
all of the Common  Stock  held by Mr.  Wiggans  for nine  months  following  the
termination of his employment from the Company other than for cause,  and to the
payment of premiums on a life insurance policy in the amount of $1,000,000.  The
employment  agreement  also provided for  reimbursement  by the Company of up to
$110,000 for combined actual relocation and housing expenses.

         Additionally,  the  Company  and Mr.  Wiggans  have  entered  into  two
interest-bearing   loan   agreements  for  up  to  $108,000  and  for  $225,000,
respectively,  both of which are  secured by shares of Common  Stock held by Mr.
Wiggans.  Amounts drawn on the $108,000 loan are due on the third anniversary of
the date of each draw.  The  principal  balance  owed to the  Company  under the
$108,000 loan was $72,000,  which was also the largest aggregate amount that was
outstanding,  payable under two $36,000  promissory notes with interest at 5.63%
and 5.73% per annum,  respectively.  These two loans were forgiven in 1996 for a
total of $76,809,  which includes principal plus interest. The remaining $36,000
related to the original loan of $108,000,  payable under a promissory  note with
interest at 6.15% per annum,  was loaned in July 1996 and  forgiven in July 1997
for a total  forgiveness  of  principal  and accrued  interest  of $38,244.  The
$225,000 loan was amended and restated in July 1996; the new principal amount of
the loan is  $256,401.10,  and the loan  bears  interest  at a rate of 6.74% per
annum.  Under the restated  terms,  a $50,000  principal  payment plus  interest
accrued to date was and is due and  payable on each of July 31,  1997,  July 31,
1998,  July 31, 1999,  July 31, 2000 and July 31, 2001. The current balance owed
to the Company under this loan at September  30, 1997 was $207,731.  The balance
of the principal amount outstanding plus all accrued interest is due and payable
on July 31, 2001.

         In October 1995, the Company  entered into a consulting  agreement with
G. Kirk Raab, the Chairman of the Company's Board of Directors.  See "Management
- --  Board  of  Directors   Committees;   Compensation  of  Directors  and  Other
Information."

         In  December  1995,  the  Company  entered  into a Master  Bridge  Loan
Agreement  with certain  stockholders  of the Company (the "Bridge  Investors"),
pursuant to which such Bridge Investors severally and unconditionally  agreed to
lend up to a maximum aggregate total of $5 million to the Company. No loans were
made  under  this  Agreement,  and the  Company's  ability to call for any loans
expired upon the completion of the Company's initial public offering in February
1996.  In  consideration  for this  commitment,  in February  1996,  the Company
delivered to each such Bridge  Investor a five-year  warrant to purchase a total
of 22,727 shares of Common Stock at an exercise price equal to $11.00, the price
per share of securities  issued in the Company's  initial public  offering.  The
following  current  five  percent   stockholders  of  the  Company  were  Bridge
Investors:  Sierra  Ventures IV, L.P.,  Sprout  Capital  VII,  L.P.,  and Domain
Partners III, L.P. See "Principal Stockholders."

         In  March  1996,  the  Board  authorized  the  Company  to  enter  into
individual  agreements  with  each  of the  Company's  directors  and  executive
officers to provide in the event of a merger or  acquisition  of the Company and
another entity, all stock options held by such person will automatically vest in
full (i) unless the Company is the surviving  entity after such  transaction and
the Company's stockholders  immediately prior to such transaction own a majority
of the outstanding  securities of the surviving entity or (ii) if, as the result
of such  transaction,  the officer or  director's  position  with the Company is
terminated  or his or her  responsibilities  are  adversely  changed  or reduced
without his or her written consent.

                                      -49-

<PAGE>

         In October  1996,  the  Company  and The  Molecular  Medicine  Research
Institute (MMRI), acting through Dr. Amento,  entered into a Laboratory Services
Agreement.  Under  the  terms of the  agreement,  MMRI is  conducting  research,
including  research on behalf of the Company.  Pursuant to this  agreement,  the
Company has provided  $250,000 to assist in establishing  MMRI and an additional
grant of  $100,000  per year for two  years  pursuant  to a  Sponsored  Research
Agreement relating to connective tissue research.  The Company has also provided
clinical  space and three  full-time  researchers,  along  with costs to support
three full-time  employees at the laboratory  through November 1997. The Company
received  all  intellectual  property  rights  arising  from  directed  research
projects  fully funded by the Company and has a right of first  negotiation  for
certain other intellectual property developed by the laboratory.

         In conjunction with the Laboratory Services Agreement, the Company also
entered into an  Agreement  with Dr.  Amento.  Pursuant to this  agreement,  Dr.
Amento resigned his employment  relationship  with the Company effective October
31, 1996, and became a consultant to the Company.  For the first nine months' of
consulting work, Dr. Amento received a fee of $18,750 per month;  after July 31,
1997 (and for consulting  services exceeding one day per week during the initial
nine months),  Dr. Amento is being  compensated at a rate of $2,000 per day. The
Company  will  also  pay  Dr.  Amento  $25,000  for any  successfully  completed
transaction in which his  consultation was requested by the Company and given by
Dr.  Amento.  Dr.  Amento was also  provided  $24,000 over six months for office
expenses. Dr. Amento's stock options were converted to non-qualified options and
continue to vest under the terms of his  consultancy.  Also under the Agreement,
Dr. Amento resigned his position as a director on May 14, 1997.

         In December 1996, the Company  acquired the exclusive U.S. and Canadian
rights to Ridaura(R)  (auranofin),  a disease modifying antirheumatic drug, from
SmithKline  Beecham   Corporation  and  related  entities   ("SmithKline").   As
consideration  to  SmithKline,  the Company  provided a $3 million  upfront cash
payment,  which was paid in January 1997, a  non-interest  bearing $11.0 million
promissory  note,  payable in two  installments in January 1998 and January 1999
(of $6.0 million and $5.0 million, respectively) and secured by the intellectual
property acquired from SmithKline,  637,733 shares of the Company's common stock
with a guaranteed  value of $9.0 million on December 31, 1997, and an obligation
to pay up to $6.0  million in  sales-based  royalty  payments,  for an aggregate
purchase price of up to $29.0  million.  The $11.0 million  promissory  note was
discounted at inception using an imputed interest rate of 11% and future imputed
interest  expense  attributable  to these payments is $1.6 million.  In November
1997,  this  note was  amended  to  defer  the  initial  $6.0  million  payment,
originally due in January 1998, to April 1998 ($1.0 million), October 1998 ($1.5
million) and January 1999 ($3.5  million).  The  amendment  also  provides  that
Connetics will pay interest on the unpaid principal from January 1998 to January
1999 at a rate of prime  plus two  percent  (2%).  Under a related  Transitional
Services  Agreement,  customer  orders and  distribution  for the  product  will
continue  to  be  managed  by   SmithKline   through  1997  with  no  additional
consideration  for  performing  such  services.  The parties also entered into a
Supply Agreement, under which SmithKline will manufacture and supply Ridaura (in
final  finished  package form) to the Company for an initial term of five years.
As a result of the share  issuance,  SmithKline  became the beneficial  owner of
more than five  percent  (5%) of the  Company's  Common  Stock.  See  "Principal
Stockholders"  and "Risk  Factors -- Potential  Effects of Guarantee of Value of
Shares Issued to SmithKline."

   
         In May 1997, the Company and a selling stockholder sold an aggregate of
1,936,357  shares of the Company's Common Stock at a price of $6.05 per share to
certain accredited investors in a private placement. The investors also received
warrants to purchase  shares of the Company's  common stock at an exercise price
of $9.08  per  share.  As part of this  financing,  certain  directors  and five
percent  stockholders of the Company  purchased  shares of Common Stock from the
Company  and  received  warrants  as  follows:  Sprout  Capital  VII,  L.P.  and
affiliated  entities  (1,239,670 shares for an aggregate price of $7,500,004 and
warrants for an  additional  619,835  shares),  Domain  Partners  III,  L.P. and
affiliated  entities  (124,651  shares for an  aggregate  price of $754,138  and
warrants for an  additional  62,325  shares),  and Alexander E. Barkas (with his
wife  Linda  Wijcik)  (23,710  shares for an  aggregate  price of  $143,446  and
warrants for an additional 11,855 shares).  Brian H. Dovey, a general partner of
the general partner of Domain Partners III, L.P., is a director of the Company.
    

         In October 1997,  the Company and Dr.  Harkonen  entered into a Secured
Loan Agreement and Security  Agreement  providing for a loan to Dr.  Harkonen of
$100,000,  which is secured by 25,000  shares of Common Stock  issuable upon the
exercise of vested options held by Dr. Harkonen. The current balance owed to the
Company  under  this loan is  $100,000,  payable  under a  promissory  note with
interest  at 8.5% per annum,  compounded  annually.  All  principal  and accrued
interest is due and  payable on the  earliest of (a) October 30, 2000 or (b) the
termination of Dr.  Harkonen's  employment or consulting  relationship  with the
Company for any reason.

         In  September  1997,  the  Company  and  Cynthia  Butitta,  former Vice
President of Finance and  Administration  and Chief Financial  Officer,  entered
into a  separation  agreement,  pursuant  to  which  the  Company  accepted  Ms.
Butitta's  resignation  as an employee  and officer of the Company and agreed to
pay Ms. Butitta all accrued salary,  accrued and unused vacation earned, and six
(6) months of base  salary as a  severance  benefit.  Under the  agreement,  Ms.
Butitta will serve as a consultant to the Company from the date of the agreement
through March 1998 and will receive $15,000 per month as consulting fees.

                                      -50-

<PAGE>

         The Company and CORD Logistics,  Inc. ("CORD") are currently finalizing
a Distribution Services Agreement,  pursuant to which CORD will be appointed the
primary  distribution  agent  in and for the  United  States,  the  District  of
Columbia,  Puerto  Rico  and  Canada  for the  distribution  of  Ridaura  to the
Company's direct  customers.  Under the agreement,  which is expected to have an
initial term of three years,  the Company would pay CORD an initial start-up fee
of $51,000 for  implementation  and will pay monthly  fees of $10,700 for system
access,  customer service and financial services, in addition to other per order
and fixed fees for distribution and financial services.  CORD is a subsidiary of
Cardinal  Health,  Inc.,  of which  Mr.  Kane (a  director  of the  company)  is
President,  Chief  Operating  Officer and a director.  There can be no assurance
that this agreement with CORD will be consummated in a timely manner, or at all.
See "Risk  Factors --  Management  of  Ridaura  Product;  Uncertainty  of Future
Ridaura Revenues; Off-Patent Status of Ridaura."

         The Company  believes that all of the transactions set forth above were
made on terms no less  favorable  to the Company  than could have been  obtained
from  unaffiliated  third parties.  All future  transactions,  including  loans,
between the Company and its  officers,  directors,  principal  stockholders  and
their  affiliates  will be  approved  by a majority  of the Board of  Directors,
including a majority of the independent and  disinterested  directors,  and will
continue to be on terms no less  favorable to the Company than could be obtained
from unaffiliated third parties.
   
         In this  offering,  the Company  currently  intends to offer  shares of
Common Stock to certain directors and five percent  stockholders of the Company.
Specifically,  the Company  intends to offer 434,952  shares to Domain  Partners
III,  L.P.,  15,048 shares to DP III  Associates,  L.P., (an affiliate of Domain
Partners  III,  L.P.),  70,000  shares to Alexander E. Barkas (a director of the
Company),  and 30,000  shares to Thomas D. Kiley (a  director  of the  Company).
Brian H. Dovey, a general partner of the general partner of Domain Partners III,
L.P. and DP III  Associates,  L.P., is a director of the Company.  Although such
investors have expressed an interest in purchasing such shares,  there can be no
assurance that such purchases will occur. See "Principal Stockholders."
    


                                      -51-

<PAGE>


<TABLE>
                             PRINCIPAL STOCKHOLDERS

         The following table sets forth certain information known to the Company
with respect to the  beneficial  ownership of the  Company's  Common Stock as of
November  14,  1997,  and as adjusted  to reflect  the sale of the Common  Stock
offered  hereby  (assuming all of such shares are sold),  by (i) all persons who
are  beneficial  owners of five percent or more of the  Company's  Common Stock,
(ii) each director of the Company,  (iii) each executive  officer of the Company
(including the Named Executive Officers), and (iv) all current directors and all
executive  officers  as a group.  Except as  otherwise  indicated,  the  Company
believes that the  beneficial  owners of the Common Stock listed below,  and the
information furnished by such owners, have sole investment and voting power with
respect to such shares, subject to community property laws where applicable.

<CAPTION>
   
                                                                                                  Percent Beneficially Owned
                                                                                                 ----------------------------
                                                                             Number of            Before              After
   Name                                                                      Shares(1)           Offering            Offering(21)
   ----                                                                      ---------           --------            --------
<S>                                                                          <C>                   <C>                 <C>
   Sprout Capital VII, L.P. (2).........................................     2,768,671             23.6%               20.5%
     650 Town Centre Drive, Suite 810
     Costa Mesa, CA 92626
   Sierra Ventures IV, L.P.(3)..........................................      830,564               7.3%                6.3%
     3000 Sand Hill Road
     Building Four, Suite 210
     Menlo Park, CA 94025
   Domain Partners III, L.P. (4)(21)....................................      816,859               7.1%                9.7%
     One Palmer Square, Suite 515
     Princeton, NJ 08542
   New York Life Insurance Company (5) .................................      715,432               6.2%                5.4%
     51 Madison Ave
     New York, NY 10010
   State of Wisconsin Investment Board (6)..............................      695,000               6.1%                5.3%
     P.O. Box 7842
     Madison, WI  53707
   SmithKline Beecham Properties, Ltd. (7)..............................      637,733               5.6%                4.9%
     1403 Foulk Road  #102
     Wilmington, DE  19803-2775
   Edward P. Amento, M.D. (8)...........................................      208,266               1.8%                1.6%
   Thomas G. Wiggans (9)................................................      215,718               1.9%                1.6%
   Eugene A. Bauer, M.D.................................................      145,467               1.3%                1.1%
   Brian H. Dovey (4)(10)(21)...........................................      826,344               7.2%                9.7%
     One Palmer Square, Suite 515
     Princeton, NJ 08542
   Alexander E. Barkas, Ph.D. (11)(21) .................................       96,924                *                  1.3%
   G. Kirk Raab (12)....................................................       92,519                *                   *
   Ernst H. Rinderknecht, Ph.D. (13)....................................       50,295                *                   *
   Thomas D. Kiley (14)(21).............................................       56,857                *                   *
   W. Scott Harkonen (15)...............................................       50,377                *                   *
   David A. Lowin, Esq. (16)............................................       39,064                *                   *
   Joseph J. Ruvane, Jr. (17)...........................................       29,308                *                   *
   Cynthia M. Butitta (18)..............................................       40,012                *                   *
   Richard J. Hammel (19)...............................................       36,946                *                   *
   Kenneth B. Plumlee ..................................................       23,000                *                   *
   John L. Higgins (20) ................................................        3,000                *                   *
   John C. Kane.........................................................        5,000                *                   *
   All directors and executive officers as a group (16 persons)             1,919,097              16.4%               18.3%
     (8)-(21)...........................................................
<FN>
    *  Less than one percent (1%).
                                      -52-


<PAGE>

(1)   Beneficial  ownership is determined  in  accordance  with the rules of the
      Securities  and  Exchange  Commission.  The number of shares  beneficially
      owned by a person  includes shares of Common Stock subject to options held
      by that person that are currently  exercisable  or  exercisable  within 60
      days of  November  14,  1997.  Such  exercisable  options are shown in the
      footnotes to this table for each such person.  Such shares,  however,  are
      not deemed  outstanding  for the  purposes  of  computing  the  percentage
      ownership of each other person.

(2)   Includes 1,146,200 shares held by Sprout Capital VII, L.P., 267,119 shares
      held by  Sprout  Capital  VI,  L.P.,  68,823  shares  held by DLJ  Capital
      Corporation, 7,412 shares held by The Sprout CEO Fund L.P., 521,618 shares
      held by Sprout Growth II, L.P.,  132,621 shares held by DLJ First ESC LLC,
      301,335  shares  issuable upon exercise of warrants held by Sprout Capital
      VII, L.P.,  exercisable  within 60 days of November 14, 1997, 1,648 shares
      issuable  upon  exercise of  warrants  held by Sprout  Capital  VI,  L.P.,
      exercisable  within 60 days of November 14, 1997,  12,657 shares  issuable
      upon  exercise of warrants  held by DLJ Capital  Corporation,  exercisable
      within 60 days of November 14, 1997,  3,464 shares  issuable upon exercise
      of warrants held by The Sprout CEO Fund L.P.,  exercisable  within 60 days
      of November 14, 1997 and 61,984 shares  issuable upon exercise of warrants
      held by DLJ First ESC LLC,  exercisable  within  60 days of  November  14,
      1997.

(3)   Includes  793,941 shares held by Sierra  Ventures IV, L.P.,  31,790 shares
      held by Sierra Ventures IV International, L.P., 4,647 shares issuable upon
      exercise of warrants held by Sierra Ventures IV, L.P.,  exercisable within
      60 days of November  14,  1997 and 186 shares  issuable  upon  exercise of
      warrants  held by Sierra  Ventures  IV  International,  L.P.,  exercisable
      within 60 days of November 14, 1997.

(4)   Includes  721,349 shares held by Domain Partners III, L.P.,  25,188 shares
      held by DP III Associates,  L.P., 4,215 shares held by Domain  Associates,
      63,898 shares  issuable upon exercise of warrants held by Domain  Partners
      III,  L.P.,  exercisable  within 60 days of  November  14,  1997 and 2,209
      shares issuable upon exercise of warrants held by DP III Associates  L.P.,
      exercisable within 60 days of November 14, 1997. Brian H. Dovey, a general
      partner of the general  partner of Domain  Partners  III,  L.P. and DP III
      Associates,  L.P.,  is a  director  of the  Company.  Mr.  Dovey is also a
      general  partner of Domain  Associates.  Mr.  Dovey  disclaims  beneficial
      ownership of such shares except to the extent of his pecuniary interest in
      such shares.

(5)   Includes  124,651 shares  issuable upon exercise of  outstanding  warrants
      exercisable within 60 days of November 14, 1997.

(6)   Such  information  has been  obtained  from a filing  on Form 13-G by such
      person.

(7)   The Company may be  obligated  to issue  additional  shares to  SmithKline
      Beecham Properties,  Ltd. on December 31, 1997 to bring the total value of
      the  shares  owned  by such  stockholder  to $9.0  million.  See  "Certain
      Relationships and Related Transactions."

(8)   Includes  shares held  indirectly  by Dr.  Amento as trustee of the Amento
      Family  Trust.  Includes  3,513  shares  issuable  upon  the  exercise  of
      outstanding options exercisable within 60 days of November 14, 1997.

(9)   Includes 15,224 shares  issuable upon the exercise of outstanding  options
      exercisable  within 60 days of November 14,  1997.  Also  includes  13,490
      shares of Common Stock owned by Kathryn H. Wiggans, spouse of Mr. Wiggans,
      8,993 shares of Common Stock held in a Custodial  Account for Elizabeth M.
      Wiggans and 8,993 shares of Common  Stock held in a Custodial  Account for
      Amanda G. Wiggans.

(10)  Includes  9,485  shares  issuable  upon  exercise of  outstanding  options
      exercisable within 60 days of November 14, 1997.

(11)  Includes  13,700  shares  issuable upon  exercise of  outstanding  options
      exercisable within 60 days of November 14, 1997 and 11,855 shares issuable
      upon  exercise  of  outstanding  warrants  exercisable  within  60 days of
      November 14, 1997.  Also  includes  25,985 shares of Common Stock owned by
      Linda Wijcik, spouse of Dr. Barkas.

(12)  Includes  86,899  shares  issuable upon  exercise of  outstanding  options
      exercisable within 60 days of November 14, 1997.

(13)  Includes  15,809  shares  issuable upon  exercise of  outstanding  options
      exercisable within 60 days of November 14, 1997.

                                      -53-
<PAGE>

(14)  Includes 8,993 shares held in the Thomas D. and Nancy L.M. Kiley Revocable
      Trust under  Agreement  dated August 7, 1981.  Also includes 24,375 shares
      issuable upon exercise of outstanding  options  exercisable within 60 days
      of November 14, 1997.

(15)  Includes 48,597 shares  issuable upon the exercise of outstanding  options
      exercisable within 60 days of November 14, 1997.

(16)  Includes 17,705 shares  issuable upon the exercise of outstanding  options
      exercisable within 60 days of November 14, 1997.

(17)  Includes 29,308 shares  issuable upon the exercise of outstanding  options
      exercisable within 60 days of November 14, 1997.

(18)  Includes 39,228 shares  issuable upon the exercise of outstanding  options
      exercisable within 60 days of November 14, 1997.

(19)  Includes 36,254 shares  issuable upon the exercise of outstanding  options
      exercisable within 60 days of November 14, 1997.

(20)  Includes 250 shares of Common Stock owned by Amy K. Higgins, spouse of Mr.
      Higgins.

(21)  The percent listed in this column includes shares of Common Stock that the
      Company currently intends to offer to certain persons listed in the table.
      Specifically,  the  Company  intends  to offer  450,000  shares  to Domain
      Partners  III,  L.P. and its  affiliate DP III  Associates,  L.P.,  70,000
      shares to Alexander E. Barkas,  and 30,000 shares to Thomas D. Kiley. Such
      shares are not included in such  persons'  shareholdings  listed under the
      column  "Number of  Shares."  Although  such  persons  have  expressed  an
      interest in purchasing  such shares,  there can be no assurance  that such
      purchases will occur.

</FN>
    
</TABLE>
                                      -54-


<PAGE>


                          DESCRIPTION OF CAPITAL STOCK

         Following  the closing of the sale of the shares  offered  hereby,  the
authorized  capital  stock of the Company will consist of  50,000,000  shares of
Common Stock,  $0.001 par value, and 5,000,000 shares of Preferred Stock, $0.001
par value.

Common Stock

         As of October 31, 1997,  there were  11,349,557  shares of Common Stock
outstanding that were held of record by approximately  191  stockholders.  There
will be 13,099,557 shares of Common Stock outstanding after giving effect to the
sale of the shares of Common Stock offered  hereby  (assuming all of such shares
are sold). See "Management -- Stock Option Plans."

         The holders of Common  Stock are  entitled to one vote per share on all
matters to be voted upon by the stockholders. Subject to preferences that may be
applicable to any outstanding  Preferred  Stock, the holders of Common Stock are
entitled to receive ratably such dividends, if any, as may be declared from time
to time by the Board of Directors out of funds legally available  therefor.  See
"Dividend  Policy." In the event of a liquidation,  dissolution or winding up of
the Company,  the holders of Common  Stock are entitled to share  ratably in all
assets  remaining  after  payment of  liabilities,  subject  to prior  rights of
Preferred Stock, if any, then outstanding. The Common Stock has no preemptive or
conversion  rights or other  subscription  rights.  There are no  redemption  or
sinking fund provisions available to the Common Stock. All outstanding shares of
Common Stock are fully paid and non-assessable.

Preferred Stock

         The Company is authorized  to issue  5,000,000  shares of  undesignated
Preferred  Stock.  The Board of Directors  will have the  authority to issue the
undesignated  Preferred Stock in one or more Series and to determine the powers,
preferences  and  rights and the  qualifications,  limitations  or  restrictions
granted to or imposed upon any wholly unissued series of undesignated  Preferred
Stock  and to  fix  the  number  of  shares  constituting  any  Series  and  the
designation  of  such  series,  without  any  further  vote  or  action  by  the
stockholders.  The issuance of Preferred  Stock may have the effect of delaying,
deferring  or  preventing  a change in control of the  Company  without  further
action by the  stockholders and may adversely affect the voting and other rights
of the holders of Common  Stock.  At present,  the Company has no plans to issue
any further shares of Preferred Stock except those listed herein.

         In  December  1996,  the  Company  issued  200  shares  of 7%  Series A
Redeemable  Convertible Preferred Stock ("Series A Redeemable Preferred Stock"),
par value $.001 per share,  in a  Regulation  S offering at a per share price of
$10,000  with a mandatory  redemption  date of December 4, 1999.  Dividends  and
principal on the Series A Redeemable Preferred Stock are convertible into common
stock at a conversion price equal to 85% of the average of the daily low trading
price for the ten trading days  immediately  preceding the conversion date. Each
holder is  entitled  to  convert  all or a portion  of its  Series A  Redeemable
Preferred Stock into common stock at any time. Any Series A Redeemable Preferred
Stock that upon  conversion  would result in the  cumulative  issuance of common
stock in excess of 20% of the outstanding  common stock,  will be  automatically
redeemed  by the  Company  for cash at a  redemption  price equal to 120% of the
$10,000 original  purchase price plus accrued dividends at the rate of 7%. As of
November  14,  1997,  one  hundred  forty  (140)  shares of Series A  Redeemable
Preferred  Stock had been  converted  into common stock and sixty (60) shares of
Series A Redeemable Preferred Stock remained outstanding.

                                      -55-

<PAGE>


         In May 1997, the Company  adopted a Preferred  Shares Rights  Agreement
(the "Rights Agreement"), which entitles existing stockholders to certain rights
(including  the right to  purchase  shares of Series B  Preferred  Stock) in the
event of an  acquisition  of  fifteen  percent  (15%)  or more of the  Company's
outstanding  common  stock or a tender  offer for such shares  resulting  in the
beneficial  ownership by a person or group of fifteen  percent  (15%) or more of
the outstanding  common stock.  Such rights expire in April 2000 if not redeemed
earlier by the  Company  or  expired  pursuant  to the  consummation  of certain
mergers,  consolidations or sales of assets, or unless the final expiration date
is extended.

Registration Rights of Certain Holders

         The  holders of  approximately  2,251,752  shares of Common  Stock (the
"Registrable  Securities")  or their  transferees are entitled to certain rights
with respect to the  registration of such shares under the Securities Act. These
rights are provided under the terms of an agreement  between the Company and the
holders  of  Registrable  Securities.  Subject  to  certain  limitations  in the
agreement,  the  holders  of a  majority  of  the  Registrable  Securities  then
outstanding may require,  on two occasions at any time, that the Company use its
best efforts to register the  Registrable  Securities for public resale.  If the
Company  registers any of its Common Stock either for its own account or for the
account of other security  holders,  the holders of  Registrable  Securities are
entitled to include their shares of Common Stock in the registration. A holder's
right to  include  shares in an  underwritten  registration  is  subject  to the
ability  of the  underwriters  to limit the  number of  shares  included  in the
offering.  Holders  of  Registrable  Securities  holding  at  least  20%  of the
Company's  outstanding shares of capital stock may also require the Company,  on
no more than two occasions over any  twelve-month  period,  to register all or a
portion of their  Registrable  Securities  on Form S-3,  provided,  among  other
limitations,  that the proposed  aggregate  selling price,  net of  underwriting
discounts and commissions, is at least $250,000. All fees, costs and expenses of
such  registrations,  excluding those incurred with respect to  registrations on
Form S-3,  must be borne by the  Company  and all  selling  expenses  (including
underwriting  discounts,  selling commissions and stock transfer taxes) relating
to Registrable  Securities must be borne by the holders of the securities  being
registered. All fees, costs and expenses of registrations on Form S-3, including
all such selling  expenses must be born by the holders of the  securities  being
registered.

Anti-Takeover Provisions of Delaware Law

         The Company is subject to the provisions of Section 203 of the Delaware
Law. In general, the statute 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 that the  person  became an  interested
stockholder  unless (with certain  exceptions)  the business  combination or the
transaction in which the person became an interested  stockholder is approved in
a prescribed  manner.  Generally,  a "business  combination"  includes a merger,
asset or stock sale or other transaction resulting in a financial benefit to the
stockholder,  and 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  outstanding voting stock. This provision may have the
effect of delaying,  deferring or  preventing a change in control of the Company
without further action by the stockholders. In addition, upon completion of this
offering,  certain  provisions of the Company's charter  documents,  including a
provision  eliminating  the ability of  stockholders  to take actions by written
consent,  may have the effect of  delaying or  preventing  changes in control or
management  of the  Company,  which  could have an adverse  effect on the market
price of the  Company's  Common Stock.  The Company's  stock option and purchase
plans  generally  provide for  assumption  of such plans or  substitution  of an
equivalent  option  of  a  successor  corporation  or,  alternatively,   at  the
discretion  of the Board of  Directors,  exercise  of some or all of the options
stock,  including non-vested shares, or acceleration of vesting of shares issued
pursuant to stock grants,  upon a change of control or similar event.  The Board
of Directors  has authority to issue up to 5,000,000  shares of Preferred  Stock
and to fix the  rights,  preferences,  privileges  and  restrictions,  including
voting  rights,  of these  shares  without  any  further  vote or  action by the
stockholders.  The rights of the holders of the Common Stock will be subject to,
and may be  adversely  affected  by, the rights of the holders of any  Preferred
Stock that may be issued in the future.  The issuance of Preferred Stock,  while
providing  desirable  flexibility in connection with possible  acquisitions  and
other corporate purposes,  could have the effect of making it more difficult for
a third  party to  acquire a majority  of the  outstanding  voting  stock of the
Company,  thereby  delaying,  deferring or preventing a change in control of the
Company.  Furthermore,  such  Preferred  Stock

                                      -56-

<PAGE>

may have other  rights,  including  economic  rights senior to the Common Stock,
and, as a result,  the  issuance of such  Preferred  Stock could have a material
adverse  effect on the market  value of the Common  Stock.  The  Company  has no
present plan to issue shares of Preferred Stock.

Warrants

         The Company also has  outstanding  warrants  exercisable  for 1,289,194
shares of Common Stock at an average weighted exercise price of $8.79 per share.

Transfer Agent and Registrar

         The Transfer Agent and Registrar for the Company's Common Stock is U.S.
Stock Transfer Corporation,  Glendale, California. Its telephone number is (818)
502-1404.

Listing

         The  Company's  Common  Stock is quoted on the Nasdaq  National  Market
under the trading symbol "CNCT."

                                      -57-

<PAGE>


                              PLAN OF DISTRIBUTION

   
         The Common Stock  offered  hereby is being offered for sale directly by
the Company to a limited  number of  institutional  buyers,  affiliates  of such
buyers and other accredited investors.  The Company does not anticipate offering
the Common Stock through underwriters, but may engage a registered broker/dealer
to effect  sales of the  shares.  If the  Company  does offer the  Common  Stock
through  underwriters  or  broker/dealers  or agents,  the net  proceeds  to the
Company would be reduced by any discounts or commissions  that would be required
to be paid by the Company to any such  underwriter,  broker/dealer or agent. The
price of the Common Stock offered hereby will be determined through negotiations
between the Company and prospective purchasers of the Common Stock.
    

         There  can be no  assurance  that the  Company  will be  successful  in
selling any or all of the Common Stock offered hereby. The Company has not fixed
a  minimum  number  of  shares  of  Common  Stock  to be sold  pursuant  to this
Prospectus.  Therefore,  the Company may sell less than all of the Common  Stock
offered  hereby,  which may  significantly  reduce the amount of  proceeds to be
received by the Company.  Funds received by the Company on the sale of less than
all of the Common Stock offered hereby will not be placed in an escrow, trust or
similar account.  It is expected that delivery of certificates  representing the
shares of Common Stock will be made against payment for the Common Stock in Palo
Alto, California, and the offering of any unsold shares hereunder will terminate
not later than thirty (30) days after the date of this Prospectus.

         The Chief  Executive  Officer,  the President  and the Chief  Financial
Officer of the  Company,  with  assistance  of other  officers  as needed,  will
participate  in the sale of the  Common  Stock to the  purchasers.  The  Company
expects that these participants, who will not receive any compensation for these
sales, will not be deemed to be brokers under the Exchange Act.

         The Company has engaged Gerard Klauer  Mattison & Co., Inc.  ("GKM") to
render  financial  advisory  services  to the  Company  for a period of one year
through November 1998, including in connection with this offering. GKM's role in
this  offering is limited to  providing  financial  advice,  and GKM will not be
serving  as  an  underwriter,  broker/dealer,  finder  or  placement  agent.  In
consideration  of GKM's services,  the Company will pay GKM a fee of $70,000 and
will issue to GKM a warrant to purchase  6,000  shares of the  Company's  common
stock at an  exercise  price of $6.00 per share.  The  warrant  will expire five
years from the issue date,  and the Company  will be  obligated  to register the
shares  underlying the warrant for resale within one year of the closing of this
offering.  The Company will also reimburse GKM for its reasonable  out-of-pocket
expenses incurred in connection with its services to the Company.

                                  LEGAL MATTERS

         The validity of the Common Stock offered hereby will be passed upon for
the Company by its counsel, Venture Law Group, A Professional Corporation,  2800
Sand Hill Road, Menlo Park,  California,  94025.  Joshua L. Green, a director of
Venture Law Group, is Secretary of the Company.

                                     EXPERTS

         The  consolidated  financial  statements  of Connetics  Corporation  at
December  31, 1995 and 1996 and for each of the three years in the period  ended
December 31, 1996, appearing in this Prospectus and Registration  Statement have
been audited by Ernst & Young LLP, independent  auditors,  as set forth in their
report thereon  appearing  elsewhere  herein,  and are included in reliance upon
such report given upon the authority of such firm as experts in  accounting  and
auditing.

                                      -58-

<PAGE>


                             ADDITIONAL INFORMATION

         The Company has filed with the Securities and Exchange  Commission (the
"Commission")  a  Registration  Statement on Form S-1, of which this  Prospectus
constitutes  a part,  under the  Securities  Act with  respect  to the shares of
Common Stock offered hereby. This Prospectus omits certain information contained
in the  Registration  Statement,  and  reference  is  made  to the  Registration
Statement and the exhibits and schedules  thereto for further  information  with
respect to the Company and the Common Stock offered hereby. Statements contained
herein concerning the provisions of any documents are not necessarily  complete,
and in each instance  reference is made to the copy of such document filed as an
exhibit to the Registration  Statement.  Each such statement is qualified in its
entirety by such reference.

         The Company also is subject to the  informational  requirements  of the
Securities  Exchange  Act of 1934,  as  amended  (the  "Exchange  Act"),  and in
accordance therewith files reports,  proxy statements and other information with
the  Commission.  Such reports,  proxy  statements and other  information can be
inspected  and  copied at the  public  reference  facilities  maintained  by the
Commission at 450 Fifth Street,  N.W.,  Judiciary Plaza, Room 1024,  Washington,
D.C. 20549, and at the Commission's following Regional Offices: Northwest Atrium
Center, 500 West Madison Street, Suite 1400, Chicago,  Illinois 60661; and Seven
World  Trade  Center,  13th  Floor,  New York,  New York  10048.  Copies of such
material can be obtained at prescribed rates from the Public  Reference  Section
of the Commission at 450 Fifth Street, N.W., Judiciary Plaza,  Washington,  D.C.
20549.  The  Commission  maintains a Web site that contains  reports,  proxy and
information  statements and other information  regarding Companies,  such as the
Company, that file electronically with the Commission at http://www.sec.gov. The
Company's  Common Stock is traded on the Nasdaq National Market under the symbol
"CNCT."

                                      -59-

<PAGE>

                              CONNETICS CORPORATION
                          INDEX TO FINANCIAL STATEMENTS

Report of Ernst & Young LLP, Independent Auditors..........................  F-2
Balance Sheets.............................................................  F-3
Statements of Operations...................................................  F-4
Statements of Stockholders' Equity (Net Capital Deficiency)................  F-5
Statements of Cash Flows...................................................  F-7
Notes to Financial Statements..............................................  F-8

                                      F-1


<PAGE>


                REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

To The Board of Directors  and  Stockholders  of Connective  Therapeutics,  Inc.
(also known as Connetics Corporation)

         We  have  audited  the   accompanying   balance  sheets  of  Connective
Therapeutics, Inc. (also known as Connetics Corporation) as of December 31, 1996
and 1995, and the related  statements of operations,  stockholders'  equity, and
cash flows for each of the three years in the period  ended  December  31, 1996.
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  aspects,   the  financial   position  of  Connective
Therapeutics,  Inc.  at  December  31,  1996 and 1995,  and the  results  of its
operations  and its cash flows for each of the three  years in the period  ended
December 31, 1996, in conformity with generally accepted accounting principles.


                                              ERNST & YOUNG LLP
Palo Alto, California
January 13, 1997

                                       F-2

<PAGE>

<TABLE>
                                                       CONNETICS CORPORATION
                                                           BALANCE SHEETS
                                                (In thousands, except share amounts)

<CAPTION>
                                                                                       Nine Months
                                                                                          Ended
                                                                                      September 30,       Years Ended December 31,
                                                                                      ---------------  ----------------------------
                                                                                           1997             1996           1995
                                                                                           ----             ----           ----
                                                                                       (Unaudited)
<S>                                                                                        <C>              <C>            <C>
                                                        Assets
Current assets:
  Cash and cash equivalents                                                                $ 5,767          $14,555        $ 9,023
  Short-term investments                                                                     8,373            9,999             --
  Accounts receivable                                                                        1,863              428             --
  Prepaid expenses and other current assets                                                    167              124            154
                                                                                           -------          -------        -------
          Total current assets                                                              16,170           25,106          9,177

Property and equipment, net                                                                  1,801            1,484          1,367
Notes receivable from related parties                                                          246              301            414
Deposits and other assets                                                                      185              250            838
Licensed assets and product rights                                                          15,437           20,781             --
                                                                                           -------          -------        -------
                                                                                           $33,839          $47,922        $11,796
                                                                                           =======          =======        =======

                                         Liabilities and Stockholders' Equity
Current liabilities:
  Accounts payable                                                                        $  2,446           $4,179         $  441
  Accrued liabilities                                                                        1,922            2,023            808
  Accrued process development expenses                                                         439            1,198            668
  Accrued payroll and related expenses                                                         741              394            157
  Current notes payable                                                                      5,923               --             --
  Current portion of capital lease obligations, capital loans and long-term debt             2,845            2,408          1,259
                                                                                          --------          -------          -----
          Total current liabilities                                                         14,316           10,202          3,333

Notes payable                                                                                   --               --          2,205
Non-current portion of capital lease obligations, capital loans and long-term debt           1,302            3,062          4,933
Other long-term liabilities                                                                  6,187           10,858          1,262
Redeemable convertible preferred stock, Series A                                             1,650            2,000             --

Commitments
Stockholders' equity:
  Preferred stock,  $0.001 par value:  5,000,000 shares  authorized;  redeemable
    convertible  preferred stock, Series A, 165 shares issued and outstanding at
    September 30, 1997,  200 shares issued and  outstanding at December 31, 1996
    and no shares  issued and  outstanding  at December 31, 1995;  and preferred
    stock, no shares
    issued and outstanding at December 31, 1996 and 3,965,137 shares issued and
    outstanding at December 31, 1995                                                            --               --              4
  Common stock, $0.001 par value: 50,000,000 shares authorized; 11,075,654 share
    issued and  outstanding at September 30, 1997,  9,057,393  shares issued and
    outstanding at
    December 31, 1996 and 908, 511 issued and outstanding at December 31, 1995                  11                9              1
  Additional paid in capital                                                                72,348           60,998         21,425
  Notes receivable from stockholders                                                           (75)             (75)          (134)
  Deferred compensation, net                                                                  (891)          (1,315)        (1,933)
  Other                                                                                          1               (3)            --
  Accumulated deficit                                                                      (60,964)         (37,814)       (19,300)
  Treasury stock, at cost                                                                      (46)              --             --
                                                                                           -------          -------        -------
Total stockholders' equity                                                                  10,384           21,800             63
                                                                                           -------          -------        -------
                                                                                           $33,839          $47,922        $11,796
                                                                                           =======          =======        =======

<FN>
                                           See accompanying notes to financial statements
</FN>
</TABLE>
                                                                F-3


<PAGE>

<TABLE>

                                                         CONNETICS CORPORATION
                                                        STATEMENTS OF OPERATIONS
                                           (In thousands, except share and per share amounts)

<CAPTION>
                                                           Nine Months Ended September 30,            Years Ended December 31,
                                                           -------------------------------  ----------------------------------------
                                                                1997           1996             1996         1995          1994
                                                                ----           ----             ----         ----          ----
                                                                    (Unaudited)

<S>                                                         <C>             <C>            <C>            <C>              <C>
Product revenues                                            $     5,053     $     --       $      428     $     --         $   --

Operating costs and expenses:
  Cost of product sales                                             815           --             --             --             --
  License amortization                                            5,344           --              594           --             --
  Research and development                                       14,731          9,221         13,161          8,271          6,436
  General and administrative                                      6,599          3,419          5,434          2,113          1,317
                                                               --------       --------       --------       --------       --------
Total operating expenses                                         27,489         12,640         19,189         10,384          7,753

Interest income                                                     714            914          1,190            405             38
Interest expense                                                 (1,318)          (749)          (943)          (393)          (135)
                                                               --------       --------       --------       --------       --------
Net loss                                                       $(23,040)      $(12,475)      $(18,514)      $(10,372)      $ (7,850)
                                                               ========       ========       ========       ========       ========

Net loss per share                                          $     (2.31)    $    (1.91)    $    (2.71)
                                                            ===========     ==========     ==========
Shares used to calculate net loss per share                  10,034,185      6,524,574      6,824,668
                                                            ===========     ==========     ==========

Pro forma net loss per share                                                                              $    (1.79)
                                                                                                          ==========
Shares used to calculate pro forma net loss per share                                                      5,778,372
                                                                                                          ==========

<FN>
                                             See accompanying notes to financial statements

</FN>
</TABLE>
                                                                F-4

<PAGE>


<TABLE>
                                                        CONNETICS CORPORATION
                                     STATEMENTS OF STOCKHOLDERS' EQUITY (NET CAPITAL DEFICIENCY)
                                         (In thousands, except share and per share amounts)

<CAPTION>
                                                   Convertible                           Additional
                                                 Preferred Stock         Common Stock     Paid in     Notes        Deferred
                                                Shares     Amount      Shares    Amount   Capital   Receivable   Compensation
                                                ------     ------      ------    ------   -------   ----------   ------------

<S>                                           <C>           <C>     <C>          <C>      <C>         <C>          <C>
Balances at December 31, 1993                   227,081     $ --       604,802   $   1    $  1,037    $  (20)      $    --
Issuance of series A preferred stock          1,116,180        1          --        --       4,950        --            --
Issuance of common stock under stock
  option plans                                       --       --       261,138      --         117       (77)           --
Net loss                                             --       --          --        --          --        --            --
                                              ---------     ----     ---------   -----    --------    ------       -------
Balances at December 31, 1994                 1,343,261        1       865,940       1       6,104       (97)
                                              ---------     ----     ---------   -----    --------    ------       -------

Issuance of series B preferred stock,
  net of issuance costs                       2,621,876        3          --        --      12,787       (28)           --
Issuance of common stock under stock
  option plans                                       --       --        42,571      --          19        (9)           --
Deferred compensation related to certain
  options and stock purchase rights
  granted to employees and consultants               --       --          --        --       2,265        --        (2,265)
Amortization of deferred compensation                --       --          --        --          --        --           332
Issuance of warrants                                 --       --          --        --         250        --            --
Net loss                                             --       --          --        --          --        --            --
                                              ---------     ----     ---------   -----    --------    ------       -------
Balances at December 31, 1995                 3,965,137        4       908,511       1      21,425      (134)       (1,933)
                                              ---------     ----     ---------   -----    --------    ------       -------

Issuance of common stock in initial public
  offering ("IPO"), net of issuance costs
  of $2,981                                          --       --     2,500,000       2      24,519        --            --
Conversion of preferred stock into
  common stock in conjunction with IPO
  in February                                (3,965,137)      (4)    3,965,137       4          --        --            --
Issuance of common stock under stock
  option plans, net of repurchases                   --       --        51,586      --          22        --            --
Issuance of common stock warrants                    --       --        10,328      --          --        --            --
Issuance of common stock under employee
  stock purchase plan                                --       --        11,874      --          96        --            --
Issuance of common stock pursuant to
  private placement, net of issuance costs           --       --       972,224       1       5,929        --            --
Issuance of common stock upon asset
  purchase from SmithKline Beecham                   --       --       637,733       1       8,999        --            --
Payment of notes receivable                          --       --            --      --          --        59            --
Deferred compensation related to certain
  options and stock purchase rights granted
  to consultants                                     --       --            --      --         145        --          (145)
Amortization and reversal of deferred
  compensation                                       --       --            --      --        (137)       --           763
Unrealized loss on investments                       --       --            --      --          --        --            --
Net loss                                             --       --            --      --          --        --            --
                                              ---------     ----     ---------   -----    --------    ------       -------
Balances at December 31, 1996                        --       --     9,057,393       9      60,998       (75)       (1,315)
                                              ---------     ----     ---------   -----    --------    ------       -------

</TABLE>

<TABLE>
<CAPTION>
                                                              Unrealized
                                            Treasury Stock   Gains/Loss on  Accumulated
                                            Shares   Amount   Investments     Deficit      Total
                                            ------   ------   -----------     -------      -----

<S>                                        <C>       <C>        <C>          <C>         <C>
Balances at December 31, 1993                   --   $    --    $    --      $ (1,078)   $     (60)
Issuance of series A preferred stock            --        --         --            --        4,951
Issuance of common stock under stock
  option plans                                  --        --         --            --           40
Net loss                                        --        --         --        (7,850)      (7,850)
                                           -------   -------    -------      --------    ---------
Balances at December 31, 1994                   --        --         --        (8,928)      (2,919)
                                           -------   -------    -------      --------    ---------

Issuance of series B preferred stock,
  net of issuance costs                         --        --         --            --       12,762
Issuance of common stock under stock
  option plans                                  --        --         --            --           10
Deferred compensation related to certain
  options and stock purchase rights
  granted to employees and consultants          --        --         --            --           --
Amortization of deferred compensation           --        --         --            --          332
Issuance of warrants                            --        --         --            --          250
Net loss                                        --        --         --       (10,372)     (10,372)
                                           -------   -------    -------      --------    ---------
Balances at December 31, 1995                   --        --         --       (19,300)          63
                                           -------   -------    -------      --------    ---------

   
Issuance of common stock in initial public
  offering ("IPO"), net of issuance costs
  of $2,981                                     --        --         --            --       24,521
Conversion of preferred stock into
  common stock in conjunction with IPO
  in February                                   --        --         --            --           --
Issuance of common stock under stock
  option plans, net of repurchases              --        --         --            --           22
Issuance of common stock warrants               --        --         --            --           --
Issuance of common stock under employee
  stock purchase plan                           --        --         --            --           96
Issuance of common stock pursuant to
  private placement, net of issuance costs      --        --         --            --        5,930
Issuance of common stock upon asset
  purchase from SmithKline Beecham              --        --         --            --        9,000
Payment of notes receivable                     --        --         --            --           59
Deferred compensation related to certain
  options and stock purchase rights granted
  to consultants                                --        --         --            --           --
Amortization and reversal of deferred
  compensation                                  --        --         --            --          626
Unrealized loss on investments                  --        --         (3)           --           (3)
Net loss                                        --        --         --       (18,514)     (18,514)
                                           -------   -------    -------      --------    ---------
Balances at December 31, 1996                   --        --         (3)      (37,814)      21,800
                                           -------   -------    -------      --------    ---------
    


                                                   F-5
</TABLE>

<PAGE>
<TABLE>
<CAPTION>
<S>                                           <C>           <C>     <C>          <C>      <C>         <C>          <C>
Issuance of common stock under stock
  option plans, net of repurchases
  (unaudited)                                        --       --       129,762      --          61        --            --
Issuance of common stock under employee
  stock purchase plan (unaudited)                    --       --        12,602      --          64        --            --
Issuance of common stock pursuant to
  private placement, net of issuance
  costs (unaudited)                                  --       --     1,810,000       2      10,884        --            --
Conversion of redeemable preferred stock,
  Series A (unaudited)                               --       --        71,143      --         422        --            --
Convertible preferred stock, Series A
  preferred dividends (unaudited)                    --       --            --      --          --        --            --
Repurchase of officer's common stock
  (unaudited)                                        --       --            --      --          --        --            --
Deferred compensation related to certain
  options and stock purchase rights
  granted to consultants (unaudited)                 --       --            --      --         (33)       --            --
Amortization and reversal of deferred
  compensation (unaudited)                           --       --            --      --         (48)       --           424
Unrealized gain on investments (unaudited)           --       --            --      --          --        --            --
Net loss (unaudited)                                 --       --            --      --          --        --            --
                                              ---------     ----    ----------   -----    --------    ------       -------
Balances at September 30, 1997 (Unaudited)           --     $ --    11,080,900   $  11     $72,348    $  (75)      $  (891)
                                              =========     ====    ==========   =====     =======    ======       =======

</TABLE>

<TABLE>
<CAPTION>
<S>                                        <C>       <C>        <C>          <C>         <C>
Issuance of common stock under stock
  option plans, net of repurchases
  (unaudited)                                   --        --         --            --           61
Issuance of common stock under employee
  stock purchase plan (unaudited)               --        --         --            --           64
Issuance of common stock pursuant to
  private placement, net of issuance
  costs (unaudited)                             --        --         --            --       10,886
Conversion of redeemable preferred stock,
  Series A (unaudited)                          --        --         --            --          422
Convertible preferred stock, Series A
  preferred dividends (unaudited)               --        --         --          (110)        (110)
Repurchase of officer's common stock
  (unaudited)                               (5,246)      (46)        --            --          (46)
Deferred compensation related to certain
  options and stock purchase rights
  granted to consultants (unaudited)            --        --         --            --          (33)
Amortization and reversal of deferred
  compensation (unaudited)                      --        --         --            --          376
Unrealized gain on investments (unaudited)      --        --          4            --            4
Net loss (unaudited)                            --        --         --       (23,040)     (23,040)
                                           -------   -------    -------      --------    ---------
Balances at September 30, 1997 (Unaudited)  (5,246)  $   (46)   $     1      $(60,964)    $ 10,384
                                           =======   =======    =======      ========    =========


<FN>
                 See accompanying notes to financial statements
</FN>
</TABLE>

                                      F-6
<PAGE>

<TABLE>
                                                        CONNETICS CORPORATION
                                                      STATEMENTS OF CASH FLOWS
                                                           (In thousands)

<CAPTION>
                                                                            Nine Months Ended
                                                                              September 30,              Years Ended December 31,
                                                                         ------------------------  ---------------------------------
                                                                            1997        1996           1996        1995       1994
                                                                            ----        ----           ----        ----       ----
                                                                               (Unaudited)
<S>                                                                       <C>         <C>            <C>        <C>         <C>
Cash flows from operating activities:
Net loss                                                                  $(23,040)   $(12,475)      $(18,514)  $(10,372)   $(7,850)
Adjustments to reconcile net loss to net cash used by operating
activities:
  Depreciation and amortization                                              5,909         491          1,237        393        120
  Technology acquired in exchange for note payable and other
    long-term liability                                                         --          --             --        855      1,850
  Amortization of deferred compensation                                        378         434            626        332         --
  Accrued interest on notes payable                                            830          --             --         --         --
  Changes in assets and liabilities:
    Accounts receivable                                                     (1,435)         --           (428)        --         --
    Prepaid expenses and other current assets                                  (43)         (2)            30        (72)        18
    Notes receivable from related parties                                        9         147            173       (116)      (298)
    Deposits and other assets                                                   (9)        491            487       (543)         8
    Accounts payable                                                        (1,733)        (17)         3,738       (117)       409
    Accrued liabilities                                                       (932)        348          1,215        587         65
    Accrued process development                                               (759)        269            530        209        459
    Accrued payroll and related expenses                                       347         206            237         78         26
    Other long-term liabilities                                              1,252         (78)           221        (31)       793
                                                                          --------    --------       --------   --------    -------
Net cash used by operating activities                                      (19,226)    (10,186)       (10,448)    (8,797)    (4,400)
                                                                          --------    --------       --------   --------    -------

Cash flows from investing activities:
Purchases of short-term investments                                        (12,169)    (25,575)       (21,650)    (7,560)        --
Sales and maturities of short-term investments                              13,798      13,617         11,648      7,560         --
Capital expenditures                                                          (808)       (588)          (461)      (400)      (650)
Licensed assets and product rights                                              --          --         (3,000)        --         --
                                                                          --------    --------       --------   --------     -------
Net cash provided by (used in) investing activities                            821     (12,546)       (13,463)      (400)      (650)
                                                                          --------    --------       --------   --------    -------

Cash flows from financing activities:
Proceeds (payments) from bank loans                                             --          --             --       (750)       750
Payment of notes payable                                                        --      (2,205)        (2,205)        --         --
Proceeds from capital loans and long-term debt                                 333         415            323      5,230        540
Payments on obligations under capital leases and capital loans              (1,693)       (745)        (1,244)      (319)      (111)
Proceeds from issuance of redeemable preferred stock                            --          --          2,000         --         --
Proceeds from issuance of preferred and common stock,
  net of issuance costs                                                     10,977      24,636         30,569     12,772      4,429
                                                                          --------    --------       --------   --------    -------
Net cash provided by financing activities                                    9,617      22,101         29,443     16,933      5,608
                                                                          --------    --------       --------   --------    -------
Net change in cash and cash equivalents                                     (8,788)       (631)         5,532      7,736        558
Cash and cash equivalents at beginning of period                            14,555       9,023          9,023      1,287        729
                                                                          --------    --------       --------   --------    -------
Cash and cash equivalents at end of period                                 $ 5,767      $8,392        $14,555     $9,023     $1,287
                                                                          ========    ========       ========   ========    =======

Supplementary information:
Interest paid                                                             $    488    $    749       $  1,062   $    274    $    71

Investing and financing activities:
Assets acquired under capital leases                                      $     --    $    199       $    199   $    171    $   611
Issuance of preferred stock in exchange for cancellation of accrued
  liability related to technology license                                 $     --    $     --       $     --   $     --    $   563
Issuance of warrants                                                      $     --    $     --       $     --   $    250    $    --
Issuance of preferred and common stock in exchange for notes receivable   $     --    $     --       $     --   $     37    $    77
Deferred compensation related to stock options and purchase rights        $     --    $    145       $    145   $  2,265    $    --
Issuance of common stock for licensed assets and product rights
  purchased from SmithKline Beecham                                       $     --    $     --       $  9,000   $     --    $    --
Issuance of note payable for  licensed assets and product rights
purchased from SmithKline Beecham                                         $     --    $     --       $  9,375  $       --   $    --

<FN>
                 See accompanying notes to financial statements
</FN>
</TABLE>
                                      F-7
<PAGE>

                              CONNETICS CORPORATION

                          NOTES TO FINANCIAL STATEMENTS

                                December 31, 1996

             (Information as of September 30, 1997 and for the nine
         month periods ended September 30, 1997 and 1996 is unaudited)

1.    Organization and Summary of Significant Accounting Policies:

         Organization

         Connetics  Corporation (the "Company") was incorporated in the State of
Delaware on February 8, 1993. In March 1997,  the  Company's  Board of Directors
approved a change in the Company's name from "Connective Therapeutics,  Inc." to
"Connetics  Corporation" which was approved by the Company's stockholders at its
annual meeting on May 14, 1997. References in this section to historical results
include the  Company's  results when it was known as  "Connective  Therapeutics,
Inc." From its inception until December 1996, the Company was in the development
stage,  principally  involved in research and  development of  therapeutics  for
diseases  that  involve  connective  tissues of the body,  obtaining  financing,
recruiting  personnel,  securing  operating  facilities,  and pursuing  business
development opportunities.  On December 31, 1996, the Company acquired exclusive
U.S. and Canadian rights to Ridaura(R),  a disease modifying antirheumatic drug,
from SmithKline Beecham  Corporation and related entities.  Ridaura is the first
product the Company  markets and it signifies  the  beginning  of the  Company's
transition  from  purely  product  development  to a  revenue  based  sales  and
marketing  company.  The Company has no  products  from its current  development
programs  available  for sale and does not  expect  to have any for the next few
years.  Accordingly,   the  Company's  ability  to  continue  its  research  and
development  activities  is dependent  upon the ability of  management to obtain
substantial additional financing.

         Liquidity and financial viability

         In the course of its development activities,  the Company has sustained
continuing  operating  losses and expects such losses to increase  over at least
the next few years. The Company's future capital uses and requirements depend on
numerous  factors,  including  the  progress  of its  research  and  development
programs, the progress of clinical and advanced-stage clinical testing, the time
and costs  involved  in  obtaining  regulatory  approvals,  the cost of  filing,
prosecuting, and enforcing patent claims and other intellectual property rights,
competing  technological and market developments,  the ability of the Company to
establish  collaborative  arrangements,  the  level  of  product  revenues,  the
possible  acquisition of new products and  technologies,  and the development of
commercialization  activities,  and therefore such capital uses and requirements
may  increase  in  future  periods.  As  a  result,  the  Company  will  require
substantial  additional funds prior to reaching profitability and may attempt to
raise  additional  funds  through  equity  or  debt  financings,   collaborative
arrangements  with  corporate  partners  or from other  sources.  Other than the
Equity Line Agreement (which is presently unavailable) (see Note 6), the Company
currently has no commitments for any additional financings,  and there can be no
assurance that additional funding will be available

                                      F-8
<PAGE>
for the Company to finance its ongoing operations on acceptable terms if at all.
The inability to obtain sufficient funds may require the Company to delay, scale
back or eliminate some or all of its research and product development  programs,
to limit the marketing or its products or to license third parties the rights to
commercialize  products or technologies that the Company would otherwise seek to
develop and market itself.

         Interim financial information

         The  financial  statements  as of  September  30, 1997 and for the nine
month periods ended  September 30, 1997 and 1996 are unaudited,  but include all
adjustments  (consisting  of normal  recurring  adjustments)  which the  Company
considers  necessary for a fair statement of financial  position as of such date
and the  operating  results  and cash flows for such  periods.  Results  for the
interim period are not necessary indicative of the results for the entire year.

         Cash,  cash equivalents and short-term investments

         Cash and cash  equivalents  consist of cash on  deposit  with banks and
money market instruments with original maturity of 90 days or less.  Investments
with  maturities  beyond three months at the date of acquisition and that mature
within one year from the  balance  sheet date are  considered  to be  short-term
investments.  Cash  equivalents  and short-term  investments are carried at fair
value,  with  unrealized  gains and losses,  net of tax,  reported as a separate
component of stockholders'  equity.  The cost of securities sold is based on the
specific identification method.

         Management of the Company  believes it has  established  guidelines for
investment of its excess cash relative to  diversification  and maturities  that
maintain safety and liquidity.

         Property and equipment

         Property  and  equipment  is stated at cost and  depreciated  using the
straight-line  method over the useful  lives of the assets,  generally  three to
five years.  Assets acquired under capital lease arrangements are amortized over
the shorter of the estimated useful lives or the lease term.

         Fair value of financial instruments

         Statement of Financial Accounting Standards No. 107, "Disclosures About
Fair Value of Financial Instruments," requires that fair values be disclosed for
most of the Company's financial  instruments.  The carrying amount of cash, cash
equivalents   and   short-term   investments,   accounts   receivable,   current
liabilities,  notes payable, and long-term lease obligations, loans and debt are
considered to be representative of their respective fair values.

         Research and development

         Research and development costs are charged to expense as incurred.

         Revenue recognition

         Revenues from product sales are recognized upon shipment.

         Income taxes

         Income taxes are  accounted  for under the asset and  liability  method
where  deferred tax assets and  liabilities  are  recognized  for the future tax
consequences   attributable  to  differences  between  the  financial  statement
carrying  amounts of existing assets and  liabilities  and their  respective tax
bases and operating loss and tax credit  carryforwards.  Deferred tax assets and
liabilities  are measured  using enacted tax rates  expected to apply to taxable
income in the years in which  those  temporary  differences  are  expected to be
recovered or settled.

                                      F-9
<PAGE>

         Net loss per share

         Net loss per share is computed  using the  weighted  average  number of
shares of common stock outstanding.  Common equivalent shares from stock options
and  convertible  preferred  stock are excluded  from the  computation  as their
effect is  antidilutive,  except  that,  pursuant  to  Securities  and  Exchange
Commission Staff Accounting  Bulletins,  common  equivalent shares issued during
the  twelve-month  period prior to the initial public  offering in February 1996
have  been  included  in the  calculation  as if they were  outstanding  for all
periods  through  December 31, 1995 (using the  treasury  stock method for stock
options  and the  anticipated  offering  price).  Historical  net loss per share
calculated on this basis for 1995 was $(2.34).  Pro forma net loss per share for
1995  has  been  computed  as  described  above  and also  gives  effect  to the
conversion of convertible preferred shares not included above that automatically
converted  into common shares upon  completion of the Company's  initial  public
offering (using the if-converted method) from the original date of issuance.

         In February 1997,  the Financial  Accounting  Standards  Board ("FASB")
issued Statement of Financial Accounting Standards No. 128, "Earnings Per Share"
(SFAS 128),  which requires the Company to simplify the  calculation of earnings
per  share  ("EPS")  and  achieve   comparability   with  the  recently   issued
International  Accounting  Standard No. 33, "Earnings Per Share."  Statement No.
128 is effective for both interim and annual  financial  statements  for periods
ending  after  December  15, 1997.  As a result,  the Company  will  continue to
compute EPS in accordance with Accounting  Principles  Board ("APB") Opinion No.
15, "Earnings Per Share," and will adopt and report of SFAS 128 new EPS basis in
the  fourth  quarter  ended  December  31,  1997.  The impact of SFAS 128 is not
expected to be material to the Company's financial statements.

         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 amounts  reported in the financial  statements  and
accompanying notes. Actual results could differ from those estimates.

         New accounting standards

         In October  1995,  the  Financial  Accounting  Standards  Board  issued
Statement of Financial  Accounting  Standards ("SFAS") No. 123,  "Accounting for
Stock-Based  Compensation,"  which  requires  the  Company  to adopt  disclosure
provisions for stock-based  compensation effective January 1, 1996. The standard
defines a fair value  method of  accounting  for stock  options and other equity
instruments.  Under the fair value method, compensation is measured at the grant
date based on the fair  value of the award and is  recognized  over the  service
period,  which is usually the vesting period.  This standard  encourages  rather
than  requires  companies  to adopt  the fair  value  method of  accounting  for
employee  stock-based  transactions.  Companies  are  permitted  to  continue to
account for such transactions under Accounting  Principles Board ("APB") Opinion
No. 25, "Accounting for Stock Issued to Employees," but will be required to make
pro forma disclosures as if the fair value method had been applied.  The Company
has elected to continue to apply APB

                                      F-10
<PAGE>

Opinion  No.  25  in  its  financial  statements  and  has  provided  pro  forma
disclosures in the accompanying notes to financial statements.

         Effective  January 1, 1996, the Company  adopted  Financial  Accounting
Standards Board Statement No. 121,  "Accounting for the Impairment of Long-Lived
Assets and for  Long-Lived  Assets to be Disposed  Of"  ("Statement  No.  121").
Statement No. 121 requires  losses from  impairment to be recorded on long-lived
assets used in operations  when  indicators  of  impairment  are present and the
undiscounted  cash flows estimated to be generated by those assets are less than
the assets'  carrying  amount.  The adoption of Statement No. 121 did not have a
material  effect on the  Company's  financial  statements  for the twelve months
ended December 31, 1996.

<TABLE>
2.    Cash Equivalents and Short-term Investments:

The following is a summary of available-for-sale investments ( in thousands):

<CAPTION>
                                                                  September 30, 1997
                                                     --------------------------------------------
                                                                  Gross       Gross
                                                                ----------------------
                                                     Amortized  Unrealized  Unrealized  Estimated
                                                       Costs       Gains       Loss     Fair Value
 <S>                                                 <C>         <C>        <C>         <C>
      Corporate bonds ............................   $  3,332    $      1   $     (1)   $  3,332
      Commercial paper ...........................      5,678        --         --         5,678
      Certificate of deposits ....................      4,043           1       --         4,044
      Money market funds .........................         28        --         --            28
                                                     --------    --------   --------    --------
            Total ................................     13,081           2         (1)     13,082
      Less amount classified as cash equivalents .     (4,709)       --         --        (4,709)
                                                     --------    --------   --------    --------
      Total short-term investments ...............   $  8,372    $      2   $     (1)   $  8,373
                                                     ========    ========   ========    ========


                                                                  December 31, 1996
                                                     --------------------------------------------
                                                                  Gross       Gross
                                                                ----------------------
                                                     Amortized  Unrealized  Unrealized  Estimated
                                                       Costs       Gains       Loss     Fair Value
                                                       -----       -----       ----     ----------
      Corporate bonds ............................   $  9,802    $      2   $     (5)   $  9,799
      Commercial paper ...........................      8,269        --         --         8,269
      Certificate of deposits ....................      5,021        --         --         5,021
      Money market funds .........................         14        --         --            14
                                                     --------    --------   --------    --------
            Total ................................     23,106           2         (5)     23,103
      Less amount classified as cash equivalents .    (13,104)       --         --       (13,104)
                                                     --------    --------   --------    --------
      Total short-term investments ...............   $ 10,002    $      2   $     (5)   $  9,999
                                                     ========    ========   ========    ========


                                                                  December 31, 1995
                                                     --------------------------------------------
                                                                  Gross       Gross
                                                                ----------------------
                                                     Amortized  Unrealized  Unrealized  Estimated
                                                       Costs       Gains       Loss     Fair Value
                                                       -----       -----       ----     ----------
      Money market funds..........................   $ 1,686     $   --     $   --      $  1,686
      Less amounts classified as cash equivalents.    (1,686)        --         --        (1,686)
                                                     --------    --------   --------    --------
      Total short-term investments................   $   --      $   --     $   --      $    --
                                                     ========    ========   ========    ========
 </TABLE>
                                      F-11

<PAGE>

         The  net   unrealized   holding   gain  (loss)  on   available-for-sale
investments  included  as  a  separate  component  of  stockholders'  equity  at
September  30,  1997  and  December  31,  1996  totaled   $1,000  and  $(3,000),
respectively.   The  gross  realized   gains  on  sales  of   available-for-sale
investments for the year ended December 31, 1996 totaled $543,000, and the gross
realized losses for the years ended December 31, 1996 and 1995 totaled  $289,000
and $21,000, respectively.
Realized gains and losses were calculated  based on the specific  identification
method.

<TABLE>
3.    Property and Equipment:

         Property and equipment consists of the following (in thousands):

<CAPTION>
                                                                            September 30,            December 31,
                                                                            -------------            ------------
                                                                                 1997            1996          1995
                                                                                 ----            ----          ----
<S>                                                                            <C>              <C>           <C>
      Laboratory equipment.............................................        $1,885           $1,357        $  928
      Computer equipment...............................................           395              288           217
      Furniture and fixtures...........................................           356              224           169
      Leasehold improvements...........................................           713              672           567
                                                                               ------           ------        ------
                                                                                3,349            2,541         1,881
      Less accumulated depreciation and amortization...................        (1,548)          (1,057)         (514)
                                                                               ------           ------        ------
      Property and equipment, net......................................        $1,801           $1,484        $1,367
                                                                               ======           ======        ======
</TABLE>

         Property and  equipment  includes  assets under  capitalized  leases at
December  31,  1996  and  1995  of   approximately   $1,005,000   and  $805,000,
respectively.   Accumulated   amortization   related   to  leased   assets   was
approximately $559,000 and $280,000 at December 31, 1996 and 1995, respectively.
There were no new  capitalized  leases for the nine months ended  September  30,
1997.

4.    Notes Receivable from Related Parties

         At September 30, 1997 and December 31, 1996 and 1995,  the Company held
notes  receivable from officers of the Company totaling  $246,000,  $301,000 and
$414,000,  respectively.  These notes, which bear interest at rates ranging from
6% to 8% annually, are collateralized by certain personal assets of the officers
and are generally due and payable within three to five years.

5.    Research and License Agreements:

         Licensed Assets and Product Rights

         In December 1996, the Company entered into an agreement with SmithKline
Beecham  Corporation  and  affiliated  entities  ("SmithKline")  under which the
Company acquired  exclusive  United States and Canadian rights to Ridaura(R),  a
disease modifying  antirheumatic drug. Under the Asset Purchase  Agreement,  the
Company provided a $3.0 million upfront cash payment,  which was paid in January
1997,  a  non-interest  bearing  $11.0  million  promissory  note payable in two
installments, in January 1998 and January 1999 of $6.0 million and $5.0 million,
respectively,  637,733  shares of common stock with a  guaranteed  value of $9.0
million at December 31, 1997,  and up to $6.0 million in royalty  payments based
on future product sales, for a potential aggregate  consideration of up to $29.0
million.  The $11.0 million promissory note was discounted at inception using an
imputed interest rate of 11% and future imputed interest expense attributable to

                                      F-12
<PAGE>


these payments is $1.6 million. The amount of the discounted note, $9.4 million,
has been included in other long-term  liabilities,  and the total purchase price
of $21.4 million has been  capitalized.  The Company has  determined  the useful
life of this asset to be three years  based on  information  regarding  products
currently in the  Company's  development  pipeline,  competitive  products,  the
off-patent  position of Ridaura and expected future  revenues from Ridaura,  and
has recorded amortization of $5.3 million and $0.6 million at September 30, 1997
and December 31, 1996, respectively.

         On November 13, 1997, the Company amended the terms of its non-interest
bearing $11.0 million promissory note with SmithKline.  The amendment allows the
Company to defer the first $6.0 million installment  payment,  originally due in
January 1998,  to April 1998,  October 1998 and January 1999 by payments of $1.0
million, $1.5 million and $3.5 million, respectively. The Company is required to
pay  interest on the  principal  amount  outstanding  of the $6.0  million  from
January  1, 1998  through  January  4, 1999 at prime  rate plus 2%.  The  second
installment  payment of $5.0  million  under the note,  also due  January  1999,
remains unchanged.

         Under a related  Transitional  Services Agreement,  customer orders and
distribution  for the product will continue to be managed by SmithKline  through
1997 with no additional  consideration for performing such services. The parties
also entered into a Supply  Agreement,  under which  SmithKline will manufacture
and supply  Riduara in final  package  form to the Company  for an initial  term
through December 2001.

         License agreements

         In September  1993, the Company  entered into a Letter  Agreement and a
License  Agreement with a corporation (the  "Licensor"),  which was subsequently
amended in July  1994,  for an  exclusive  right to make,  use and sell  certain
products  arising from  licensed  technology in a defined field and territory in
exchange for Series A preferred  stock which was issued in September  1994.  The
Company  charged the value of the  preferred  stock to research and  development
expense in 1993. In addition,  the Company  charged  $684,000 to expense in 1994
for the purchase of research materials and payment of technology  transfer costs
under the agreement.  This amount is due in September 1998 and has been included
in other  long-term  liabilities.  The  Company  will  also pay to the  Licensor
royalties on sales of products arising from the licensed technology,  if any. In
April 1996, the Company  acquired  worldwide  rights to such technology from the
Licensor.

         In June 1996, the Company entered into an exclusive  License  Agreement
with  Soltec  Research  PTY  Ltd.  (the  "Licensor"),   to  develop  and  market
betamethasone  mousse  (a foam  mousse  formulation  of the  dermatologic  drug,
betamethasone valerate) in North America. Under the terms of the Agreement,  the
Company will pay $75,000,  of which $35,000 was paid in 1996, in licensing  fees
to the Licensor (based on certain  milestones) plus royalties on future sales of
products, if any, arising from the licensed technology.  The Company also has an
exclusive  option on the Licensor's foam mousse system for the delivery of other
compounds.

                                      F-13
<PAGE>


         Technology acquisition agreement

         In  June  1994,  the  Company  entered  into a  Technology  Acquisition
Agreement (the "Agreement") with a corporation to purchase all rights to certain
technology and for the exclusive  right to make,  use and sell certain  products
pursuant to a sublicense  agreement in exchange for the issuance of a $1,350,000
subordinated  promissory note. The note, including interest, was paid in full in
February  1996 after the closing of the  Company's  initial  public  offering of
common  stock.  In  addition to this note,  the  Company has accrued  additional
consideration  of $500,000,  which is payable by the Company upon the earlier of
the  achievement  of  commencement  of phase III  clinical  trials for a product
involving the licensed technology,  or six years from the date of the agreement.
This amount has been included in other long-term liabilities.

         The Agreement  also provided for certain  contingent  payments based on
future financings.  As a result of the Series B financing which was completed in
1995, the Company issued an additional note in the amount of $855,000 under this
Agreement. The note, including interest, was paid in full in February 1996 after
the  closing of the  Company's  initial  public  offering  of common  stock.  An
additional  $1,000,000  will be payable by the  Company  upon FDA  approval of a
product involving the licensed technology.

         Under the terms of the Agreement,  the Company is also committed to pay
royalties on applicable sales.

         Technology license agreement

         In  December  1995,  the  Company  entered  into a  Technology  License
Agreement  (the  "License")  to acquire  exclusive  rights to develop and market
products arising from certain licensed technology,  other than for its currently
marketed indications,  for dermatological  diseases in the United States as part
of a  collaborative  marketing and profit sharing  agreement.  Such agreement is
contingent upon the Company using its best efforts to achieve  commencement of a
Phase III clinical  trial within 30 months of the agreement  effective  date. In
September  1996,  the Company  achieved this  milestone with the initiation of a
Phase III clinical trial.

         The Company will fund all costs to develop a product using the licensed
technology  and has the option to defer  payments for the purchase of commercial
materials from the licensor,  if any, in exchange for certain debt  instruments.
If the  Company  is  successful  in  commercialization  of a  product  using the
licensed  technology,  and if certain  defined  annual sales levels are met, the
licensor has the right to co-promote the product upon terms  mutually  agreeable
to the parties.

         Expenses

         Expenses  under all of the  Company's  research and license  agreements
totaled $35,000,  $855,000 and $3,089,000 for the years ended December 31, 1996,
1995 and 1994, respectively.

                                      F-13
<PAGE>

6.    Financing Arrangements

         Long-Term Debt

         On December 21, 1995, the Company entered into a term Loan and Security
Agreement (the "Term Loan") with a bank consortium  (the "Lenders")  under which
the Company  borrowed  $5,000,000.  The Term Loan bears  interest  at 13%,  with
interest  only  payments for the first six months,  and  interest and  principal
payments for the  following 30 months.  In  connection  with the Term Loan,  the
Company issued a warrant to purchase 73,071 shares of Common Stock at a price of
$5.78 per share.  The warrant is exercisable at any time through  December 2002.
In  conjunction  with the Term  Loan,  the  Company  granted  the lender a first
security  interest in its  corporate  assets.  Under the terms of the loan,  the
Company is  required  to  maintain  a minimum  cash  balance  of the  greater of
$6,000,000 or six times the Company's average monthly cash usage. If the Company
violates the covenants during the loan period,  the Company would be required to
pledge  restricted  cash of 65% of the  outstanding  loan,  or  $2,681,000 as of
December  31, 1996,  to cure the  violation.  On November 14, 1997,  the Company
pledged  restricted  cash of  $1,647,000  on the  outstanding  loan  balance  of
$2,534,000.

         Future  minimum   principal   payments  under  the  Term  Loan  include
$1,929,000  and  $2,196,000  for the years  ending  December  31, 1997 and 1998,
respectively.

         Convertible Subordinated Note Financing

         On December  7, 1995,  the Company  entered  into a Master  Bridge Loan
Agreement  (the  "Bridge  Loan")  with  certain   shareholders  to  provide  for
borrowings  up to $5 million.  The Company did not draw down any portion of this
Bridge  Loan and the  right  to draw  down  funds  expired  upon the  successful
completion  of the  Company's  initial  public  offering  in February  1996.  In
connection  with the Bridge  Loan,  the  Company  issued  five-year  warrants to
purchase a total of 22,727 shares of common stock at the exercise price equal to
$11.00, the price per share of securities issued in the Company's initial public
offering.

         Structured Equity Line Flexible Financing

         On December 2, 1996, the Company entered into a Structured  Equity Line
Flexible   Financing   Agreement  (the  "Agreement")  with  Kepler  Capital  LLC
("Kepler")  that allows the Company to access up to $25 million through sales of
its Common  Stock.  The equity line will be available  for a  three-year  period
beginning on or before December 1, 1997. The Agreement provides that the Company
can obtain from  $500,000 to  $2,000,000  at any one time  through a sale of its
Common  Stock to Kepler,  subject  to the  satisfaction  of certain  conditions,
including  registration of the shares for resale,  minimum volume  requirements,
and a minimum  trading  price of $7.00 per share  over a  specified  period.  In
addition,  the Company must sell  $500,000 of its Common Stock from time to time
if the price per share exceeds  $10.00 and certain  volume  conditions  are met.
Such sales will occur no more  frequently than every 60 trading days. Any shares
sold  under the  equity  line  will be  priced  at 93% of the  lesser of (i) the
average  of the  daily  low  trading  price of the  Common  Stock for the 5 days
preceding  the sale and (ii) the weighted  average of daily low trading price of
the Common Stock during a valuation  period.  The purchase

                                      F-14

<PAGE>

price will be subject to further  adjustment,  up to a maximum  discount  of 15%
depending  on the  length of the  valuation  period - the period  following  the
purchase date and ending on the day, not to exceed 80 trading days, on which the
aggregate  value of open market  trading during the period equals or exceeds the
aggregate value of open market trading during the 20 days preceding the purchase
date. As a commitment fee to Kepler for keeping the equity line  available,  the
Company has issued a warrant to  purchase  250,000  shares of Common  Stock (see
Note 11). On September 30, 1997, the Company's trading price was below the $7.00
minimum price  requirement and the Company is currently unable to draw under the
equity line.

<TABLE>
7.    Capital Lease Obligations and Capital Loans

         The Company has capital  lease and capital loan credit lines  available
totaling  $3,245,000  at December  31,  1996,  of which  $975,000 was unused and
available at December 31, 1996.  Under the terms of the master lease  agreement,
ownership of the leased equipment reverts to the Company at the end of the lease
term.

         As of December 31, 1996,  future  minimum lease  payments under capital
leases and principal payments on capital loans are as follows:

<CAPTION>
                                                                          Capital Leases        Capital Loans
                                                                          --------------        -------------
                                                                                     (in thousands)
        Year ending December 31:
<S>                                                                          <C>                      <C>
          1997...........................................................    $    428                 $  96
          1998...........................................................         411                   110
          1999...........................................................          79                   131
          2000...........................................................          54                    67
          Thereafter.....................................................          43                   --
                                                                             --------                 -----
        Total minimum lease and principal payments, respectively.........       1,015                 $ 404
                                                                                                      =====
        Less amount representing interest................................         167
                                                                             --------
        Present value of future payments.................................         848
        Less current portion of capital lease obligations................         329
                                                                             --------
        Non-current portion of capital lease obligations.................    $    519
                                                                             ========
</TABLE>

         The  obligations  under the capital leases and loans are secured by the
leasehold  improvements and equipment financed,  bear interest at fixed rates of
approximately 8% to 14% and are payable in monthly  installments through January
2002.

<TABLE>
8.    Operating Leases

         The Company  subleases  its facility  under a  noncancelable  operating
lease which expires in July 1999, with an option to extend the term of the lease
for one additional period of two years. The future minimum rental payments under
the leases are as follows (in thousands):

<CAPTION>
             Years ending December 31:
<S>                                                                                        <C>
             1997.................................................................         $  561
             1998.................................................................            589
             1999.................................................................            352
                                                                                           ------
                                                                                           $1,502
                                                                                           ======
</TABLE>
                                      F-15
<PAGE>


         The Company recognizes rent expenses on a straight-line  basis over the
term of each  lease.  Rent  expense  under  operating  leases was  approximately
$425,000,  $416,000 and $325,000 for the years ended December 31, 1996, 1995 and
1994, respectively.

9.    Notes Receivable from Stockholders

         At September  30, 1997 and December 31, 1996,  the Company held $75,000
in notes receivable from certain  stockholders for the purchase of the Company's
common stock.  These notes bear interest at rates ranging from 6% to 7% annually
and are secured by the shares of common stock held by the  borrowers.  The notes
are due and payable, together with any unpaid interest, no later than either the
fourth or fifth anniversary of the note, or, for certain of these notes,  within
30 days of termination of employment with the Company.

10.   Redeemable Convertible Preferred Stock

         In  December  1996,  the  Company  issued  200  shares  of 7%  Series A
Redeemable  Convertible Preferred Stock ("Series A Redeemable Preferred Stock"),
par value $.001 per share,  in a  Regulation  S offering at a per share price of
$10,000  with a mandatory  redemption  date of December 4, 1999.  Dividends  and
principal on the Series A Redeemable Preferred Stock are convertible into common
stock at a conversion  price equal to 85% of the average daily low price for the
ten trading days  immediately  preceding  the  conversion  date.  Each holder is
entitled to convert all or a portion of its Series A Redeemable  Preferred Stock
into common stock at any time. Any Series A Redeemable Preferred Stock that upon
conversion would result in the cumulative  issuance of common stock in excess of
20% of the  outstanding  common  stock,  will be  automatically  redeemed by the
Company for cash at a  redemption  price  equal to 120% of the $10,000  original
purchase  price plus accrued  dividends  at the rate of 7%. As of September  30,
1997,  35 shares of Series A Redeemable  Preferred  Stock had been  converted to
71,143 shares of common stock at the value of $422,000.

11.   Stockholders' Equity

         The Company is authorized to issue two classes of shares,  common stock
(Common Stock) and preferred  stock  (Preferred  Stock),  each with par value of
$.001 per share.  Prior to the Company's initial public offering,  two series of
Preferred  Stock,  Series A and B were issued.  In  connection  with the initial
public offering of the Company's  common stock in February 1996, each previously
outstanding  share of preferred  stock (an  aggregate  of 3,965,137  shares) was
converted into one share of common stock and all previously authorized preferred
stock was eliminated.  The Company's  Articles of Incorporation  was restated to
delete all references to Series A and B of Preferred  Stock,  and to authorize a
new class of 5,000,000 shares of Preferred Stock.

         Warrants

         In July 1995, the Company issued  warrants to purchase 18,395 shares of
Series B Preferred  Stock at an exercise  price of $4.89 per share pursuant to a
capital  lease and capital  loan  agreement.  Each  warrant for the  purchase of
preferred  stock was  converted  into a warrant for the purchase of one share of
common  stock and such  warrants are  exercisable  any time through the later of
seven

                                      F-16
<PAGE>


years from grant date or five years from the Company's  initial public  offering
of common stock in February 1996.

         In  connection  with  a  Master  Bridge  Loan  Agreement  with  certain
stockholders  of the company in December 1995, the Company issued warrants which
expire in December  2000 to purchase a total of 22,727 shares of Common Stock at
a price of $11.00 per share.

         Also in December 1995, in connection with a loan and security agreement
with a bank  consortium,  the Company  issued  warrants which expire in December
2002 to purchase 73,071 shares of Common Stock at a price of $5.78 per share.

         In  conjunction  with the Company's  issuance of 200 shares of Series A
Redeemable  Preferred Stock in December 1996 (see Note 10), warrants were issued
that allow the holders to purchase up to 20,000 shares of the  Company's  common
stock at an exercise price equal to 110% of the closing bid price on December 4,
1996, or $7.425 per share, with an expiration date of December 4, 2001.

         In  conjunction  with the  Structured  Equity Line  Flexible  Financing
Agreement in December 1996 (See Note 6), the Company issued a warrant on January
2, 1997 to purchase 250,000 shares of common stock at an exercise price of $8.25
per  share.  The  warrant is  exercisable  over a period of 5 years from date of
issuance.  On each of the first, second and third anniversaries of the beginning
of the  commitment  period,  the Company will issue the  Investor an  additional
five-year  warrant  exercisable  for a number of shares  based on the  amount of
equity line still available to the Company.

         In conjunction  with the Company's  issuance of 1,810,000 shares in May
1997 to certain  private  investors,  warrants  were issued to purchase  905,000
shares  of the  Company's  common  stock at a price of $9.08  per  share.  These
warrants will expire May 15, 2001.

         Common stock

         The Company has the right to  repurchase,  at the original  issue price
per share,  certain  shares of common  stock issued to  employees,  consultants,
investors and founders.  This right  generally  expires ratably over a period of
time not greater than five years,  in  accordance  with terms  determined by the
Board of Directors.

         At  September  30, 1997 and  December  31,  1996 and 1995,  outstanding
shares of 55,132, 154,786 and 392,102, respectively,  were subject to repurchase
at original issue prices ranging from $0.04 to $0.45 per share, including shares
issued  pursuant to stock  purchase  rights  under the 1994 Stock Plan (see Note
12).

         Dividend restrictions

         The Company's loan  agreement with a bank lender  prohibits the Company
from declaring or paying a dividend without the banks' prior written consent.

                                      F-17
<PAGE>


<TABLE>
         Common shares reserved for future issuance

         The Company has reserved shares of common stock as follows:

<CAPTION>
                                                                                             September 30,    December 31,
                                                                                                 1997             1996
                                                                                                 ----             ----
<S>                                                                                            <C>              <C>
          1994 Stock Plan...............................................................       1,723,585        1,353,347
          1995 Employee Stock Purchase Plan.............................................          75,524           88,126
          1995 Directors Stock Option Plan..............................................         150,000          150,000
          Common stock warrants.........................................................       1,289,194          384,193
                                                                                               ---------        ---------
                                                                                               3,238,303        1,975,666
                                                                                               =========        =========
</TABLE>

         In addition,  the Company is required to reserve shares of common stock
for  issuance  upon  the  conversion  of the  Series  A  Redeemable  Convertible
Preferred Stock based on the conversion  formula.  The amount was  approximately
504,000  shares and 344,000  shares at September 30, 1997 and December 31, 1996,
respectively.

12.   Stock Plans

         1994 Stock Plan

         In August 1994, the Company's Board of Directors (the "Board")  adopted
the 1994 Stock Plan (the "Plan") which  authorizes the Board to grant  incentive
stock options,  nonstatutory stock options,  and stock purchase rights for up to
1,349,011  shares of common  stock.  The Plan was  amended  in  January  1996 to
increase  the number of shares by 150,989,  bringing  the total up to  1,500,000
shares of common stock.

         The  options  under  this Plan  expire no later than ten years from the
date of grant.  The exercise price of the incentive stock options,  nonstatutory
stock options and options  granted to 10%  shareholders  shall be at least 100%,
85%,  and 110%,  respectively,  of the fair  value of the stock  subject  to the
option on the grant  date.  The price for  shares  purchased  pursuant  to stock
purchase  rights by 10%  shareholders  shall be at least 100% of the fair market
value of the stock on the date of grant.

         The options generally become exercisable at such times as determined by
the Company's Board of Directors, but in no event at a rate of less than 20% per
year for a period of five (5) years from date of grant. Shares granted under the
Plan pursuant to stock  purchase  rights are generally  subject to repurchase by
the  Company at the  original  issue  price per share.  The  Company's  right to
repurchase  these  shares  generally  expires  ratably over a period of time not
greater than five years.

<TABLE>
         The Company  has elected to adopt  Statement  of  Financial  Accounting
Standards ("SFAS") No. 123, "Accounting for Stock-Based Compensation," issued in
October  1995. In  accordance  with the  provisions of SFAS No. 123, the Company
applies APB Opinion No. 25 and related  interpretations  in  accounting  for its
stock option plans and,  accordingly,  does not recognize  compensation cost. If
the Company had elected to recognize  compensation  cost based on the fair value
of the options  granted at grant date and including  stock  purchases  under the
1995  Employee

                                      F-18
<PAGE>


Stock  Purchase  Plan as  prescribed  by SFAS No. 123, net loss and net loss per
share would have been increased to the pro forma amounts  indicated in the table
below:

<CAPTION>
             (In thousands except per share amounts)                       1996               1995
                                                                           ----               ----
<S>                                                                     <C>                <C>
             Net loss - as reported...............................      $(18,514)          $(10,372)
             Net loss - pro forma.................................      $(19,339)          $(10,586)
             Net loss per share - as reported.....................      $  (2.71)          $  (2.34)
             Net loss per share - pro forma.......................      $  (2.83)          $  (2.39)

</TABLE>

         Because SFAS No. 123 is applicable only to options  granted  subsequent
to December 31, 1994,  its pro forma  effect will not be fully  reflected  until
1997.

<TABLE>
         The fair value of each option  grant is  estimated on the date of grant
using the Black-Scholes option-pricing model with the following assumptions:

<CAPTION>
<S>                                                                                  <C>
            Expected stock price volatility ..........................                     60.0%
            Risk-free interest rate range  ...........................                 4.24% - 6.32%
            Expected life of options .................................               1.125 to 2.0 years
            Option approach ..........................................                   multiple
</TABLE>


         The weighted average fair value of options granted during 1996 and 1995
was $4.846 and $2.550 per share, respectively.

<TABLE>
         In July 1994, in conjunction with a research  collaboration  agreement,
the Company issued an option to purchase  22,483 shares of common stock at $0.45
per share to a consultant under the Plan. The option becomes  exercisable  based
on the achievement of certain  technical  milestones,  except as to 6,745 shares
which become exercisable on the earlier of the achievement of milestones or over
a period of five  years  from the date of grant.  Compensation  expense  will be
recorded for the options to purchase 15,738 common shares,  for which vesting is
not  fixed,  based on the  difference  between  the  fair  value on the date the
milestones  are met and the  exercise  price of the  options.  The  Company  may
terminate  the  agreement  and cancel all  unvested  shares at 30 days'  written
notice.  At September 30, 1997, 225 shares were  exercisable  and no shares were
exercisable at December 31, 1996. No  compensation  expense has been incurred as
of December 31, 1996 as none of the milestones have been met.

         Activity under the plan is summarized as follows:

<CAPTION>
                                                                                   Outstanding Options
                                                                     --------------------------------------------
                                                      Shares                            Range          Weighted
                                                   available for     Number of       of Exercise      avg. price
                                                       grant           shares           Prices         per share
                                                   -------------     ---------       -----------      -----------
<S>                                                 <C>              <C>                 <C>             <C>
Balance, December 31, 1993........................    337,253
   Stock purchase rights grants...................    (55,678)             --            $0.45           $0.45
   Options granted................................    (57,772)          57,772           $0.45           $0.45
                                                    ----------       ---------
Balance, December 31, 1994........................    223,803           57,772           $0.45           $0.45
   Additional shares authorized...................  1,011,758              --             --               --

                                      F-19

<PAGE>

  Stock purchase rights granted...................    (37,320)             --            $0.45           $0.45
  Options granted.................................    (910,178)        910,178        $0.45-2.22         $0.71
  Options exercised...............................         --           (3,193)          $0.45           $0.45
  Options and stock purchase rights canceled.....        9,778          (8,655)          $0.45           $0.45
                                                    ----------       ---------
Balance, December 31, 1995........................     297,841         956,102        $0.45-2.22         $0.71
  Additional shares authorized....................     150,989             --             --               --
  Options granted.................................    (196,540)        196,540        $6.75-11.00        $8.76
  Options exercised...............................       --            (62,302)          $0.45           $0.45
  Shares repurchased..............................      10,717             --            $0.45           $0.45
  Options canceled................................      57,154         (57,154)          $0.45           $0.45
                                                    ----------       ---------
Balance, December 31, 1996........................     320,161       1,033,186        $0.45-11.00        $2.04
  Additional shares authorized....................     500,000             --             --               --
  Options granted.................................    (646,200)        646,200        $4.31-7.75         $6.44
  Options exercised...............................        --          (129,762)       $0.45-2.22         $0.48
  Shares repurchased..............................        --               --             --               --
  Options canceled................................      41,468         (41,468)       $0.45-9.50         $4.31
                                                    ----------       ---------
Balance, September 30, 1997.......................     215,429       1,508,156        $0.45-11.00        $4.16

</TABLE>

         The weighted average  contractual  lives of the options  outstanding at
December 31, 1996 and 1995 were $8.84 and $9.65,  respectively.  At December 31,
1996 and 1995, options to purchase 284,764 and 99,943 shares were exercisable at
weighted  average  exercise price of $2.329 and $0.7063,  respectively.  For the
year ended December 31, 1995,  39,378 shares were issued under the Plan pursuant
to stock purchase rights (none at December 31, 1996).

         For the years ended  December 31, 1995 and 1996,  the Company  recorded
deferred  compensation expense for the difference between the exercise price and
the deemed fair value of the Company's  common  stock,  related to shares issued
pursuant to stock purchase  rights and options  granted in 1995 and 1996.  These
options were granted to provide  additional  incentives to retain management and
key employees.  This deferred  compensation  expense is being amortized over the
related vesting period, generally a 48-month period.

         1995 Employee Stock Purchase Plan

         The Company's 1995 Employee  Stock Purchase Plan (the "Purchase  Plan")
was  adopted by the Board of  Directors  in  December  1995.  A total of 100,000
shares of Common Stock has been reserved for issuance  under the Purchase  Plan.
The Purchase Plan is administered by the Compensation  Committee of the Board of
Directors. Employees (including officers and employee directors) of the Company,
or of any majority owned  subsidiary  designated by the Board of Directors,  are
eligible  to  participate  if they  are  employed  by the  Company  or any  such
subsidiary  for at least 20 hours per week and more than 5 months per year.  The
Purchase  Plan  permits  eligible  employees to purchase  Common  Stock  through
payroll deductions, which may not exceed 15% of an employee's compensation, at a
price equal to the lower of 85% of the fair market value of the Company's Common
Stock at the beginning or end of the offering  period.  As of December 31, 1996,
11,874 shares had been issued under the plan and 88,126 shares were reserved for
future  issuance.  As of September  30, 1997, a total of 24,476  shares had been
issued under the plan and 75,524 shares were reserved for future issuance.

                                      F-20

<PAGE>

         1995 Director Stock Option Plan

         The 1995 Director Stock Option Plan (the "Directors' Plan") was adopted
by the Board of Directors in December  1995. A total of 150,000 shares of Common
Stock has been reserved for issuance under the  Directors'  Plan. The Directors'
Plan  provides  for the  grant of  nonstatutory  stock  options  to  nonemployee
directors of the Company.

         The  Directors'  Plan  provides  that each  person who first  becomes a
nonemployee  director of the  Company  after the date of the  Company's  initial
public offering shall be granted a nonstatutory  stock option to purchase 30,000
shares of Common  Stock (the "First  Option") on the date on which the  optionee
first  becomes a nonemployee  director of the Company.  The First Option was not
granted to any  nonemployee  director  who was a director  as of the date of the
offering.  Thereafter,  on the  date of each  annual  meeting  of the  Company's
stockholders,  each  nonemployee  director  (including  directors  who  were not
eligible for a First Option)  shall be granted an additional  option to purchase
7,500 shares of Common Stock (a "Subsequent Option") if, on such date, he or she
shall have served on the Company's Board of Directors for at least six months.

         The  Directors'  Plan  provides  that the  First  Option  shall  become
exercisable in  installments  as to 25% of the total number of shares subject to
the First Option on each of the first, second, third and fourth anniversaries of
the date of grant of the First  Option;  each  Subsequent  Option  shall  become
exercisable  in full on the  first  anniversary  of the  date of  grant  of that
Subsequent  Option.  The exercise  price of all stock options  granted under the
Directors'  Plan  shall  be equal  to the  fair  market  value of a share of the
Company's Common Stock on the date of grant of the option. Options granted under
the  Directors'  Plan have a term of ten  years.  No  options  were  granted  or
outstanding  under the Directors' Plan at December 31, 1996. As of September 30,
1997, 105,000 shares had been granted and outstanding, with 45,000 available for
future grants.

         1997 Stockholder Rights Plan

         In May 1997, the Company adopted a stockholder rights plan (the "Rights
Plan")  which  provides  existing  stockholders  with the right to purchase  one
one-thousandth  of a share of the  Company's  Series B  Participating  Preferred
Stock, $0.001 par value, at an exercise price of $49 per one one-thousandth of a
preferred share in the event of certain changes in the Company's ownership.  The
Company  will be entitled to redeem the rights at $0.01 per right at any time on
or before  the tenth day  following  acquisition  by a person or group of 15% or
more of the Company's  common stock. The Rights Plan may serve as a deterrent to
certain  abusive  takeover  tactics  which  are  not in  the  best  interest  of
stockholders. At September 30, 1997, 90,000 shares were designated and no shares
were issued and outstanding.

<TABLE>
13.   Income Taxes

         As of December 31, 1996,  the Company had a federal net operating  loss
carryforward of approximately  $32,400,000.  The net operating loss carryforward
will expire at various dates beginning from 2008 through 2011, if not utilized.

         Significant  components  of the  Company's  deferred  tax assets are as
follows:

                                      F-21

<PAGE>

<CAPTION>

                                                                                 December 31,
                                                                          -------------------------
                                                                            1996              1995
                                                                           --------         -------
                                                                                  (in thousands)
<S>                                                                        <C>              <C>
       Net operating loss carryforward...................................  $ 11,300         $ 5,500
       Capitalized research and development..............................     1,200           1,400
       Research credits (expires 2008-2011)..............................       800             400
       Other.............................................................     1,200             --
                                                                           --------         -------
       Net deferred tax assets...........................................    14,500           7,300
       Valuation allowance...............................................   (14,500)         (7,300)
                                                                           --------         -------
                 Total...................................................  $    --          $   --
                                                                           ========         =======
</TABLE>

         Because of the Company's lack of earnings history, the net deferred tax
asset has been fully offset by a valuation allowance.

         Utilization of the net operating losses and credits may be subject to a
substantial  annual limitation due to the "ownership  change"  provisions of the
Internal Revenue Code of 1986.

                                      F-22

<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 Common Stock being registered. All amounts are estimates except
the registration fee, the NASD filing fee and the Nasdaq National Market listing
fee.

                                                                          Amount
                                                                      To be Paid
                                                                      ----------
Registration Fee.................................................        $ 1,724
NASD Filing Fee..................................................          1,069
Nasdaq National Market Listing Fee...............................         17,500
Printing.........................................................          2,000
Legal Fees and Expenses..........................................        125,000
Accounting Fees and Expenses.....................................         14,000
Blue Sky Fees and Expenses.......................................          5,000
Financial Adviser's Fee..........................................         70,000
Transfer Agent and Registrar Fees................................          5,000
Miscellaneous....................................................         58,707
                                                                      ----------
          Total..................................................       $300,000
                                                                      ==========


Item 14.  Indemnification of Directors and Officers

         Section 145 of the Delaware General  Corporation Law authorizes a court
to award, or a corporation's Board of Directors to grant, indemnity to directors
and officers in terms  sufficiently broad to permit such  indemnification  under
certain  circumstances  for liabilities  (including  reimbursement  for expenses
incurred)  arising  under the  Securities  Act of 1933,  as amended (the "Act").
Article XI of the Registrant's Amended and Restated Certificate of Incorporation
(Exhibit 3.1 hereto) provides for  indemnification of its directors and officers
to the maximum  extent  permitted by the Delaware  General  Corporation  Law and
Section  6 of  Article  VII of the  Registrant's  Bylaws  (Exhibit  3.2  hereto)
provides for  indemnification  of its directors,  officers,  employees and other
agents to the maximum extent permitted by the Delaware General  Corporation Law.
In addition, the Registrant has entered into Indemnification Agreements (Exhibit
10.1 hereto) with its directors and officers containing  provisions which are in
some respects broader than the specific indemnification  provisions contained in
the Delaware General Corporation Law. The indemnification agreements may require
the Company,  among other things,  to indemnify its  directors  against  certain
liabilities  that may arise by reason of their  status or service  as  directors
(other than liabilities  arising from willful misconduct of culpable nature), to
advance their expenses incurred as a result of any proceeding against them as to
which they could be indemnified, and to obtain directors' insurance if available
on reasonable terms.

Item 15.  Recent Sales of Unregistered Securities

         (a) During the last three years (or such longer  period as  indicated),
the Registrant has issued and sold (without payment of any selling commission to
any person, unless otherwise noted) the following unregistered securities:

                  (1) From its inception in February  1993 through  December 31,
1995, the Registrant  granted  options and stock purchase  rights under the 1994
Stock Plan to purchase  1,060,948  shares of Common Stock at a weighted  average
price of $0.68 per share to 76 service providers.

                                      II-1
<PAGE>

                  (2) From inception  through  December 31, 1995, the Registrant
issued and sold,  pursuant to the exercise of options and stock purchase  rights
granted  under the 1994 Stock Plan,  95,067 shares of Common Stock to 38 service
providers for an aggregate purchase price of $42,285.

                  (3) From inception  through  December 31, 1995, the Registrant
issued and sold an additional  813,444  shares of its Common Stock at a weighted
average price of $0.21 per share for an aggregate purchase price of $169,207.

                  (4) From February 1995 to December 1995, the Registrant issued
and sold an  aggregate of  2,621,876  shares of its Series B Preferred  Stock to
certain  investors  at a  purchase  price of $4.89 per  share  for an  aggregate
purchase price of $12,827,503.  Such Preferred Stock converted into Common Stock
on a  one-share-for-one-share  basis upon the closing of the  Company's  initial
public offering in February 1996.

                  (5) On December 7, 1995,  the  Company  entered  into a Master
Bridge Loan  Agreement  with  certain  stockholders  of the Company (the "Bridge
Investors"),   pursuant   to  which  such   Bridge   Investors   severally   and
unconditionally  agreed to lend up to a maximum aggregate total of $5,000,000 to
the  Company.  Under such  agreement,  the  Company had the right to require the
Bridge Investors to make loans to the Company,  allocated  pursuant to each such
Bridge Investor's  percentage ownership in the Company. No loans were made under
this Agreement, and the Company's ability to call for any loans expired upon the
closing  of  the  Company's   initial  public  offering  in  February  1996.  In
consideration  for this commitment,  in February 1996, the Company  delivered to
each such  Bridge  Investor a warrant  to  purchase a number of shares of Common
Stock equal to (a) the original face principal amount of such Bridge  Investor's
commitment  times  (b) 5%,  divided  by (c)  $11.00,  the price per share of the
initial public offering. The exercise price of the warrants is $11.00 per share.

                  (6) In connection with a loan and security  agreement  entered
into between the  Registrant  and a bank  consortium  on December 21, 1995,  the
Registrant  issued  warrants to such lenders to purchase 73,071 shares of Common
Stock at a price of $5.78 per share. The warrants expire in December 2002.

                  (7) In January  1996,  the Company  effected a  one-for-4.4477
reverse stock split of the Company's Common Stock.

                  (8) In January  1996,  prior to the Company's  initial  public
offering,  the Company issued options to two consultants,  Christian Schwabe and
Bogart Delafiel, to purchase 1,124 and 5,000 shares of common stock at $0.45 and
$4.50, respectively.

                  (9) In March  1996,  the  Company  issued  options to purchase
13,488  shares  of  Common  Stock at $0.45  per  share to three  members  of the
Company's  Scientific  Advisory Board. These options were granted outside of the
1994 Stock Plan but are subject to the same terms as those options granted under
the Plan

                  (10) On December 4, 1996,  the Company sold 972,224  shares of
Common Stock to four  institutional  accredited  investors at a price of $6.1714
per share for an aggregate purchase price of $5,999,983.20.

                  (11) On December 4, 1996,  the Company issued 200 shares of 7%
Convertible Preferred Stock, Series A (the "Convertible  Preferred Stock"), at a
price of $10,000 per share, for an aggregate  purchase price of $2,000,000.  The
shares  were  sold  to an  offshore  investor  pursuant  to the  exemption  from
registration  under  Regulation S promulgated  under the Securities Act of 1933.
The Convertible  Preferred Stock is convertible into Common Stock of the Company
at a  conversion  price equal to 85% of the  average  low  trading  price on the
NASDAQ National Market System of the Company's  Common Stock for the ten trading
days immediately  preceding the conversion date, subject to certain adjustments.
The Convertible  Preferred  Stock will accrue  dividends at the rate of 7% until
converted, and is redeemable by the Company if not converted within three years.
The Company also issued a warrant to the investor to purchase  20,000  shares of
Common  Stock at an exercise  price  equal to 110% of the  closing  price of the
Company's Common Stock on December 4, 1996.

                                      II-2
<PAGE>

                  (12) On December 31, 1996,  as partial  consideration  for the
Company's  acquisition  of the U.S.  and  Canadian  rights  to  Ridaura(R)  from
SmithKline,  the Company issued 637,733 shares of its Common Stock to SmithKline
Beecham Properties, Inc.

                  (13) On May 14, 1997, the Company sold 1,810,000 shares of its
Common Stock to several  accredited  investors at a price of $6.05 per share and
also issued  warrants to purchase an aggregate of 905,000 shares of Common Stock
at an exercise price of $9.08 per share to such investors.

         (b) There were no  underwritten  offerings  employed in connection with
any of the transactions set forth in Item 15(a).

         The  issuances  of the above  securities  were deemed to be exempt from
registration under the Securities Act in reliance on Section 4(2) of such Act as
transactions by an issuer not involving any public  offering.  The recipients of
securities in each such transaction  represented their intentions to acquire the
securities for investment  only and not with a view to or for sale in connection
with any  distribution  thereof and  appropriate  legends  where  affixed to the
securities  issued in such  transactions.  All recipients  had adequate  access,
through  their  relationships  with the  Company  and in some cases  through the
Company's  periodic reports filed with the Commission,  to information about the
Registrant. In addition,  certain issuances described in Item 15(a)(1), (2), and
(8) were  deemed to be exempt  from  registration  under the  Securities  Act in
reliance upon Rule 701 promulgated under such Act.
<TABLE>

Item 16.  Exhibits and Financial Statement Schedules

(a)      Exhibits
<CAPTION>

 Exhibits
<S>               <C>
   
     3.1(1)       Form of Amended and Restated Certificate of Incorporation.
     3.2(1)       Form of Bylaws.
     3.3(5)       Certificate  of  Designation  of  7%  Redeemable   Convertible
                  Preferred Stock, Series A of Connective Therapeutics, Inc., as
                  filed with the  Delaware  Secretary  of State on  December  4,
                  1996.
     4.1(1)       Form of Common Stock Certificate.
     5.1**        Opinion of Venture Law Group, A Professional Corporation.
    10.1(1)       Form of Indemnification Agreement with the Company's directors and officers.
    10.2(7)*      1994 Stock Plan, as amended, and form of Option Agreement.
    10.3(7)*      1995 Employee Stock Purchase Plan, as amended, and form of Subscription Agreement.
    10.4(1)*      1995 Directors' Stock Option Plan and form of Option Agreement.
    10.5(1)       Third  Amended and Restated  Registration  Rights  Agreement  dated  February 14,  1995 among the
                  Registrant and certain  security  holders of the  Registrant and Amendments  Nos. 1 and 2 thereto
                  dated May 31, 1995 and September 28, 1995.
    10.6(1)(2)    License Agreement dated September 27, 1993, between Genentech,
                  Inc. and the Company,  Amendment dated July 14, 1994, and side
                  letter agreement dated November 17, 1994.
    10.8(1)       Assignment  and  Assumption  Agreement,  dated June 3, 1994,  by and between the Company and XOMA
                  Corporation.
    10.9(1)(2)    Technical Collaboration and Manufacturing Agreement, dated May
                  24, 1994, by and between the Company and Scios Nova Inc.
    10.10(1)(2)   Technology  Acquisition  Agreement  dated  June 3,  1994 by and  between  the  Company  and  XOMA
                  Corporation, and License Agreement dated February 27,  1990 by and between Arthur A.  Vandenbark,
                  Ph.D. and XOMA Corporation.
    10.11(1)(2)   Agreement  on  Interferon  Gamma-1B  dated  December 8,  1995  by and  between  the  Company  and
                  Genentech, Inc.
    10.12(1)      Equipment Lease Line, dated May 31, 1994 with Lease Management Services, Inc.
    10.13(1)      Business Loan  Agreement,  dated  July 18,  1995,  between the Company,  Silicon  Valley Bank and
                  MMC/GATX Partnership No. 1.
    

                                      II-3
<PAGE>

   
    10.14(1)(2)   Research  Collaboration and Assignment  Agreement,  dated July 1,  1994,  between the Company and
                  Dr. Arthur A. Vandenbark.
    10.15(1)      Employment and Bonus Agreement between the Company and Edward Amento, dated November 17, 1993.
    10.16(1)      Secured  Loan  Agreements  between the  Company  and Edward  Amento  dated  November 1,  1993 and
                  July 11, 1994, respectively.
    10.17(1)      Consulting Agreement dated November 17, 1993 between the Company and Brian Seed.
    10.18(1)      Consulting Agreement dated November 17, 1993 between the Company and Eugene Bauer.
    10.19(1)      Employment Agreement dated June 9, 1994 between the Company and Thomas Wiggans.
    10.20(1)      Loan Agreements between the Company and Thomas Wiggans dated July 15, 1994 and August 1, 1994.
    10.21(1)      Letter Agreement with G. Kirk Raab dated October 1, 1995.
    10.23(1)      Facility Master Lease between the Company and Renault & Handley dated February 9, 1994.
    10.26(1)      Loan and Security  Agreement  dated  December 21,  1995 by and among the Company,  Silicon Valley
                  Bank and MMC/GATX Partnership No. 1.
    10.27(3)(2)   Agreement  on  Relaxin  Rights  in Asia  dated  April 1,  1996
                  between  the  Company  and  Mitsubishi  Chemical   Corporation
                  (Exhibits A and B to Exhibit 10.27 have been previously  filed
                  as Exhibit 10.6 above. Confidential treatment has been granted
                  as to certain portions of Exhibit 10.6 by the SEC).
    10.28(3)(2)   Soltec License Agreement dated June 14, 1996.
    10.29(4)      Laboratory Services Agreement dated October 24, 1996.
    10.30(4)      Agreement with Dr. Edward Amento dated October 24, 1996.
    10.31(4)      Form of Directors and Officers Change in Control Agreement
    10.32(5)      Common  Stock  Purchase  Agreement,  dated  December 4, 1996 by and among the Company and certain
                  investors.
    10.33(5)      Registration  Rights  Agreement,  dated  December  4, 1996 by and among the  Company  and certain
                  investors.
    10.34(5)      Securities  Purchase  Agreement,  dated  December  4, 1996 by and among the Company and a certain
                  purchaser.
    10.35(5)      Warrant, dated December 4, 1996 between the Company and a certain purchaser.
    10.36(6)(2)   Asset  Purchase  Agreement  dated  December  2, 1996  between  the  Company,  SmithKline  Beecham
                  Corporation,  SmithKline Beecham Pharma Inc., SmithKline Beecham Properties,  Inc. and SmithKline
                  Beecham Inter-American Corporation.
    10.37(6)      Stock  Issuance  Agreement  dated  December 31, 1996 between the Company and  SmithKline  Beecham
                  Properties, Inc.
    10.38(6)      Secured Promissory Note dated December 31, 1996 issued to SmithKline Beecham Corporation.
    10.39(6)      Security   Agreement  dated  December  31,  1996  between  the  Company  and  SmithKline  Beecham
                  Corporation.
    10.40(6)(2)   Supply Agreement dated December 31, 1996 between the Company and SmithKline Beecham Corporation.
    10.41(6)      Transitional  Services  Agreement  dated  December  31, 1996  between the Company and  SmithKline
                  Beecham Corporation.
    10.42(8)      Structured  Equity Line Flexible  Financing  Agreement  dated January 2, 1997 between the Company
                  and Kepler Capital LLC.
    10.43(8)      Registration Rights Agreement dated January 2, 1997 between the Company and Kepler Capital LLC.
    10.44(9)      Common  Stock  and  Warrant  Purchase  Agreement  dated May 15,  1997 by and  among the  Company,
                  Genentech, Inc. and certain investors.
    10.45(9)      Registration Rights agreement dated May 15, 1997 by and among the Company and certain investors.
    10.46(9)      Form of Common Stock Purchase Warrant issued to certain investors on May 15, 1997.
    10.47(7)      Form of Notice of Stock Option Grant to G. Kirk Raab for stock option issued in January 1997.
    10.48**       Secured Loan Agreement dated October 30, 1997 between the Company and W. Scott Harkonen.
    

                                      II-4
<PAGE>

   
    10.49**       Letter Agreement with Cynthia M. Butitta dated September 22, 1997.
    10.50**       Amendment  dated November 13, 1997 to Secured  Promissory  Note dated December 31, 1996 issued to
                  SmithKline Beecham Corporation.
    10.51**       Letter  Agreement  dated November 26, 1997 between the Company and Gerard Klauer  Mattison & Co.,
                  Inc.
    10.52         Letter Agreement with John L. Higgins dated August 25, 1997.
    11.1**        Statement of Computation of Net Loss Per Share.
    23.1          Consent of Ernst & Young LLP, Independent Auditors.
    24.1          Power of Attorney (see page II-8 of originally filed Registration Statement).
    
<FN>
- ------------------------------------------------------------------------------------------------------------------------------------


*    This item is a compensatory plan required to be listed as an exhibit to this form pursuant to Item 601(a)(10)(iii) of
     Regulation S-K.
**   Previously filed.

     1.  Incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration  Statement  on  Form  S-1  (File  No.  33-80261)  declared
         effective  by the  Securities  and Exchange  Commission  (the "SEC") on
         January 31, 1996.
     2.  Certain portions of this Exhibit were granted confidential treatment pursuant to an order from the SEC.
     3.  Incorporated  by  reference  from an exhibit to the  Company's  Quarterly  Report on Form 10-Q
         (File No.  0-27406)  filed with the SEC for the fiscal quarter ended June 30, 1996.
     4.  Incorporated  by  reference  from an exhibit to the  Company's  Quarterly  Report on Form 10-Q
         (File No. 0-27406) filed with the SEC for the fiscal quarter ended September 30, 1996.

     5.   Incorporated by reference from an exhibit to the Company's Report on Form 8-K (File No. 0-27406) dated December 4, 1996.
     6.   Incorporated by reference from an exhibit to the Company's Report on Form 8-K (File No. 0-27406) dated January 15, 1997.
     7.   Incorporated  by reference  from an exhibit  filed with  Post-Effective  Amendment No. 1 to the  Company's
          Registration  Statement on Form S-8 (File No. 333-04985) filed with the SEC on June 30, 1997.
     8.   Incorporated  by reference from an exhibit filed with the Company's  Annual Report on Form 10-K
          (File No. 0-27406) for the fiscal year ended December 31, 1996.
     9.   Incorporated  by reference from an exhibit filed with the Company's  Registration  Statement on Form S-3
          (File No.  333-21941)  filed with the SEC on July 3, 1997.
</FN>
</TABLE>

         (b) Financial Statement Schedules

         Financial  statement  schedules  are omitted  because  the  information
required to be set forth therein is not  applicable or is shown in the financial
statements or notes thereto.

Item 17.  Undertakings

         Insofar as indemnification for liabilities arising under the Securities
Act of 1933 (the "Act") may be permitted to directors,  officers and controlling
persons of the Registrant  pursuant to the  provisions  referenced in Item 14 of
this Registration  Statement 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 hereunder,
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-5

<PAGE>


         The undersigned registrant hereby undertakes that:

                  (1) For purposes of determining  any liability  under the Act,
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 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
Act, 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-6

<PAGE>


                                   SIGNATURES

   
         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
Registrant has duly caused this Amendment to Registration  Statement on Form S-1
to be signed on its behalf by the undersigned, thereunto duly authorized, in the
City of Palo Alto, State of California, on December 11, 1997.
    

                                           CONNETICS CORPORATION

   
                                           By:  /s/ JOHN L. HIGGINS
                                           -------------------------------------
                                              John L. Higgins
                                              Vice President of Finance and
                                              Administration and 
                                              Chief Financial Officer
    

                                      II-7


<PAGE>

       

   
<TABLE>

         Pursuant  to the  requirements  of the  Securities  Act of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated:
<CAPTION>
Signature                                 Title                                             Date
- ---------                                 -----                                             ----
<S>                                      <C>                                               <C>

       /s/  THOMAS G. WIGGANS*            President, Chief Executive Officer and Director   December 11, 1997
- ----------------------------------------
Thomas G. Wiggans


       /s/  JOHN L. HIGGINS*              Vice President of Finance and                     December 11, 1997
- ----------------------------------------
John L. Higgins                           Administration and Chief
                                          Financial Officer (Principal
                                          Financial and Accounting
                                          Officer)


       /s/  G. KIRK RAAB*                 Chairman of the Board of Directors                December 11, 1997
- ----------------------------------------
G. Kirk Raab


       /s/  ALEXANDER E. BARKAS*          Director                                          December 11, 1997
- ----------------------------------------
Alexander E. Barkas


       /s/  EUGENE A. BAUER*              Director                                          December 11, 1997
- ----------------------------------------
Eugene A. Bauer


       /s/  BRIAN H. DOVEY*               Director                                          December 11, 1997
- ----------------------------------------
Brian H. Dovey


       /s/  JOHN C. KANE*                 Director                                          December 11, 1997
- ----------------------------------------
John C. Kane


       /s/  THOMAS D. KILEY*              Director                                          December 11, 1997
- ----------------------------------------
Thomas D. Kiley


                                          Director                                          December 11, 1997
- ----------------------------------------
Kenneth B. Plumlee


       /s/  JOSEPH J. RUVANE, JR.*        Director                                          December 11, 1997
- ----------------------------------------
Joseph J. Ruvane, Jr.

*By: /s/ John L. Higgins                                                                    December 11, 1997
     --------------------------
     John L. Higgins
     Attorney-in-Fact

                                      II-8
</TABLE>
    

<PAGE>

<TABLE>

                                INDEX TO EXHIBITS
<CAPTION>
<S>               <C>
   
  Exhibit
     3.1(1)       Form of Amended and Restated Certificate of Incorporation.
     3.2(1)       Form of Bylaws.
     3.3(5)       Certificate  of  Designation  of  7%  Redeemable   Convertible
                  Preferred Stock, Series A of Connective Therapeutics, Inc., as
                  filed with the  Delaware  Secretary  of State on  December  4,
                  1996.
     4.1(1)       Form of Common Stock Certificate.
     5.1**        Opinion of Venture Law Group, A Professional Corporation.
    10.1(1)       Form of Indemnification Agreement with the Company's directors and officers.
    10.2(7)*      1994 Stock Plan, as amended, and form of Option Agreement.
    10.3(7)*      1995 Employee Stock Purchase Plan, as amended, and form of Subscription Agreement.
    10.4(1)*      1995 Directors' Stock Option Plan and form of Option Agreement.
    10.5(1)       Third  Amended and Restated  Registration  Rights  Agreement  dated  February 14,  1995 among the
                  Registrant and certain  security  holders of the  Registrant and Amendments  Nos. 1 and 2 thereto
                  dated May 31, 1995 and September 28, 1995.
    10.6(1)(2)    License Agreement dated September 27, 1993, between Genentech,
                  Inc. and the Company,  Amendment dated July 14, 1994, and side
                  letter agreement dated November 17, 1994.
    10.8(1)       Assignment  and  Assumption  Agreement,  dated June 3, 1994,  by and between the Company and XOMA
                  Corporation.
    10.9(1)(2)    Technical Collaboration and Manufacturing Agreement, dated May
                  24, 1994, by and between the Company and Scios Nova Inc.
    10.10(1)(2)   Technology  Acquisition  Agreement  dated  June 3,  1994 by and  between  the  Company  and  XOMA
                  Corporation, and License Agreement dated February 27,  1990 by and between Arthur A.  Vandenbark,
                  Ph.D. and XOMA Corporation.
    10.11(1)(2)   Agreement  on  Interferon  Gamma-1B  dated  December 8,  1995  by and  between  the  Company  and
                  Genentech, Inc.
    10.12(1)      Equipment Lease Line, dated May 31, 1994 with Lease Management Services, Inc.
    10.13(1)      Business Loan  Agreement,  dated  July 18,  1995,  between the Company,  Silicon  Valley Bank and
                  MMC/GATX Partnership No. 1.
    10.14(1)(2)   Research  Collaboration and Assignment  Agreement,  dated July 1,  1994,  between the Company and
                  Dr. Arthur A. Vandenbark.
    10.15(1)      Employment and Bonus Agreement between the Company and Edward Amento, dated November 17, 1993.
    10.16(1)      Secured  Loan  Agreements  between the  Company  and Edward  Amento  dated  November 1,  1993 and
                  July 11, 1994, respectively.
    10.17(1)      Consulting Agreement dated November 17, 1993 between the Company and Brian Seed.
    10.18(1)      Consulting Agreement dated November 17, 1993 between the Company and Eugene Bauer.
    10.19(1)      Employment Agreement dated June 9, 1994 between the Company and Thomas Wiggans.
    10.20(1)      Loan Agreements between the Company and Thomas Wiggans dated July 15, 1994 and August 1, 1994.
    10.21(1)      Letter Agreement with G. Kirk Raab dated October 1, 1995.
    10.23(1)      Facility Master Lease between the Company and Renault & Handley dated February 9, 1994.
    10.26(1)      Loan and Security  Agreement  dated  December 21,  1995 by and among the Company,  Silicon Valley
                  Bank and MMC/GATX Partnership No. 1.
    10.27(3)(2)   Agreement  on  Relaxin  Rights  in Asia  dated  April 1,  1996
                  between  the  Company  and  Mitsubishi  Chemical   Corporation
                  (Exhibits A and B to Exhibit 10.27 have been previously  filed
                  as Exhibit 10.6 above. Confidential treatment has been granted
                  as to certain portions of Exhibit 10.6 by the SEC).
    10.28(3)(2)   Soltec License Agreement dated June 14, 1996.
    10.29(4)      Laboratory Services Agreement dated October 24, 1996.
    10.30(4)      Agreement with Dr. Edward Amento dated October 24, 1996.
    10.31(4)      Form of Directors and Officers Change in Control Agreement
    

                                      II-9
<PAGE>

   
    10.32(5)      Common  Stock  Purchase  Agreement,  dated  December 4, 1996 by and among the Company and certain
                  investors.
    10.33(5)      Registration  Rights  Agreement,  dated  December  4, 1996 by and among the  Company  and certain
                  investors.
    10.34(5)      Securities  Purchase  Agreement,  dated  December  4, 1996 by and among the Company and a certain
                  purchaser.
    10.35(5)      Warrant, dated December 4, 1996 between the Company and a certain purchaser.
    10.36(6)(2)   Asset  Purchase  Agreement  dated  December  2, 1996  between  the  Company,  SmithKline  Beecham
                  Corporation,  SmithKline Beecham Pharma Inc., SmithKline Beecham Properties,  Inc. and SmithKline
                  Beecham Inter-American Corporation.
    10.37(6)      Stock  Issuance  Agreement  dated  December 31, 1996 between the Company and  SmithKline  Beecham
                  Properties, Inc.
    10.38(6)      Secured Promissory Note dated December 31, 1996 issued to SmithKline Beecham Corporation.
    10.39(6)      Security   Agreement  dated  December  31,  1996  between  the  Company  and  SmithKline  Beecham
                  Corporation.
    10.40(6)(2)   Supply Agreement dated December 31, 1996 between the Company and SmithKline Beecham Corporation.
    10.41(6)      Transitional  Services  Agreement  dated  December  31, 1996  between the Company and  SmithKline
                  Beecham Corporation.
    10.42(8)      Structured  Equity Line Flexible  Financing  Agreement  dated January 2, 1997 between the Company
                  and Kepler Capital LLC.
    10.43(8)      Registration Rights Agreement dated January 2, 1997 between the Company and Kepler Capital LLC.
    10.44(9)      Common  Stock  and  Warrant  Purchase  Agreement  dated May 15,  1997 by and  among the  Company,
                  Genentech, Inc. and certain investors.
    10.45(9)      Registration Rights agreement dated May 15, 1997 by and among the Company and certain investors.
    10.46(9)      Form of Common Stock Purchase Warrant issued to certain investors on May 15, 1997.
    10.47(7)      Form of Notice of Stock Option Grant to G. Kirk Raab for stock option issued in January 1997.
    10.48**       Secured Loan Agreement dated October 30, 1997 between the Company and W. Scott Harkonen.
    10.49**       Letter Agreement with Cynthia M. Butitta dated September 22, 1997.
    10.50**       Amendment  dated November 13, 1997 to Secured  Promissory  Note dated December 31, 1996 issued to
                  SmithKline Beecham Corporation.
    10.51**       Letter  Agreement  dated November 26, 1997 between the Company and Gerard Klauer  Mattison & Co.,
                  Inc.
    10.52         Letter Agreement with John L. Higgins dated August 25, 1997.
    11.1**        Statement of Computation of Net Loss Per Share.
    23.1          Consent of Ernst & Young LLP, Independent Auditors.
    24.1          Power of Attorney (see page II-8 of originally filed Registration Statement).
    
<FN>
- ------------------------------------------------------------------------------------------------------------------------------------
*    This item is a compensatory plan required to be listed as an exhibit to this form pursuant to Item 601(a)(10)(iii) of
     Regulation S-K.
**   Previously filed.


     1.  Incorporated  by  reference  from an exhibit  filed with the  Company's
         Registration  Statement  on  Form  S-1  (File  No.  33-80261)  declared
         effective  by the  Securities  and Exchange  Commission  (the "SEC") on
         January 31, 1996.
     2.  Certain portions of this Exhibit were granted confidential treatment pursuant to an order from the SEC.
     3.  Incorporated  by  reference  from an exhibit to the  Company's  Quarterly  Report on Form 10-Q
         (File No.  0-27406)  filed with the SEC for the fiscal quarter ended June 30, 1996.
     4.  Incorporated  by  reference  from an exhibit to the  Company's  Quarterly  Report on Form 10-Q
         (File No.  0-27406)  filed with the SEC for the fiscal quarter ended September 30, 1996.

                                     II-10
<PAGE>


     5.  Incorporated by reference from an exhibit to the Company's Report on Form 8-K (File No. 0-27406) dated December 4, 1996.
     6.  Incorporated by reference from an exhibit to the Company's Report on Form 8-K (File No. 0-27406) dated January 15, 1997.
     7.  Incorporated  by reference  from an exhibit  filed with  Post-Effective  Amendment No. 1 to the  Company's
         Registration  Statement on Form S-8 (File  No. 333-04985) filed with the SEC on June 30, 1997.
     8.  Incorporated  by reference from an exhibit filed with the Company's  Annual Report on Form 10-K
         (File No. 0-27406) for the fiscal year ended December 31, 1996.
     9.  Incorporated  by reference from an exhibit filed with the Company's  Registration  Statement on Form S-3
         (File No.  333-21941)  filed with the SEC on July 3, 1997.
</FN>
</TABLE>


                                     II-11
       

   

August 25, 1997



John L. Higgins
3804 Inverness Cliffs
Birmingham, AL  35242

Dear John,

On behalf of Connetics (formerly Connective Therapeutics, Inc.), I am pleased to
offer you the position of VP, Finance & Administration, Chief Financial Officer,
reporting to me at our facility located at 3400 West Bayshore Road in Palo Alto.

The terms of your employment will be as follows:

Your starting salary will be $190,000 per year. Your position is exempt, and you
will not be  eligible  for  overtime.  As an  officer  of the  company,  you are
eligible for an annual cash bonus of up to 25% of your base  salary.  This bonus
is discretionary, and entirely dependent upon achievement of corporate goals. As
a  full-time  employee of  Connetics,  you will be  eligible  for the  Company's
standard benefits package including medical and dental insurance  coverage.  You
will be entitled to three weeks paid  vacation per year,  prorated  during 1997.
The  Company  will  also  provide  you  with a  $18,000  ($1,500/month)  housing
assistance  loan for the  first  12  months  of your  employment.  The  Board of
Directors will consider forgiveness on this loan at the time it is due

Additionally, you will receive a lump sum relocation payment of $25,000, subject
to tax withholdings.

Subject  to  approval  of the Board of  Directors  on date of hire,  you will be
granted an option to purchase  110,000  shares of Connetics  Corporation  common
stock at the fair market  value of such shares at the time of the option  grant.
Your right to exercise this option will be subject to vesting as follows: 1/8 of
the shares six months after  commencement  of employment,  and thereafter at the
rate of 1/48 of the shares for each month of completed  employment  (i.e.,  your
option will be fully vested at the end of four years completed employment).  The
terms and  conditions  of this option will be governed by an agreement  that you
will be required to sign.

<PAGE>

Offer of Employment
John L. Higgins
Page 2 of 2


As a  condition  of your  employment  with  Connetics,  you will be  required to
provide proof of US citizenship or that you are legally  entitled to work in the
United  States,  and to  execute  and be  bound  by the  terms  of the  enclosed
Proprietary Information And Invention Agreement. In that regard, please be aware
that Company policy prohibits all employees from bringing to Connetics, or using
in  performance  of  their  responsibilities  at  Connetics,   any  confidential
information,  trade secrets,  or propriety material or processes of any previous
employer.  Employment  with the Company is at will, is not for any specific term
and can be  terminated  by you or the Company at any time for any reason with or
without cause.

This  offer  remains  open  through  noon on  Thursday,  August 28,  1997.  Upon
acceptance  of  this  offer,  the  terms  described  in this  letter  and in the
Proprietary  Information  and  Invention  Agreement  shall be the  terms of your
employment,  superseding any other employment  agreements or understandings with
Connetics.  Any additions or modifications of these terms must be in writing and
signed by you and an officer of Connetics Corporation.

Again, let me indicate how pleased I am to extend this offer, and how much we at
Connetics look forward to working together with you. We anticipate that you will
find this an exciting and challenging position in a dynamic and growing company.

Please indicate your acceptance by signing and returning the enclosed  duplicate
original of this letter to me.

Very truly yours,


/s/ Thomas G. Wiggans

Thomas G. Wiggans
President and CEO






UNDERSTOOD AND ACCEPTED:



/s/ John L. Higgins                 8/27/97
- -------------------------------------------
John L. Higgins                     Date
    


                                  EXHIBIT 23.1

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

   
         We consent to the  reference to our firm under the  captions  "Selected
Financial  Data" and  "Experts"  and to the use of our report dated  January 13,
1997, in Amendment No. 1 to the Registration  Statement (Form S-1 No. 333-41195)
and  related  Prospectus  of  Connetics  Corporation  for  the  registration  of
1,750,000 shares of its common stock.
    

                                                     /s/  ERNST & YOUNG LLP
                                                     ---------------------------


   
Palo Alto, California
December 11, 1997
    


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