CELLEGY PHARMACEUTICALS INC
S-3, 2000-11-07
PHARMACEUTICAL PREPARATIONS
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    As filed with the Securities and Exchange Commission on November 7, 2000
                              Registration No. 333-

================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                             ----------------------
                                    FORM S-3

                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933

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

                          CELLEGY PHARMACEUTICALS, INC.
           (Exact name of the Registrant as specified in its charter)

         California                                     82-0429727
(State or other jurisdiction of             (I.R.S. employer identification no.)
incorporation or organization)

                      349 OYSTER POINT BOULEVARD, SUITE 200
                      SOUTH SAN FRANCISCO, CALIFORNIA 94080
                                 (650) 616-2200
 (Address and telephone number of the Registrant's principal executive offices)

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

                               K. MICHAEL FORREST
                             CHIEF EXECUTIVE OFFICER
                          CELLEGY PHARMACEUTICALS, INC.
                      349 OYSTER POINT BOULEVARD, SUITE 200
                          SOUTH SAN FRANCISCO, CA 94080
                                 (650) 616-2200
   (Name, address and telephone number of the Registrant's agent for service)

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

                                   Copies to:
                                 C. KEVIN KELSO
                               FENWICK & WEST LLP
                         TWO PALO ALTO SQUARE, SUITE 800
                           PALO ALTO, CALIFORNIA 94306
                                 (650) 494-0600

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

        Approximate date of commencement of proposed sale to the public:
     From time to time after this Registration Statement becomes effective.

If the only securities  being registered on this Form are being offered pursuant
to dividend or interest  reinvestment plans, please check the following box. |_|

If any of the  securities  being  registered on this Form are to be offered on a
delayed or continuous  basis  pursuant to Rule 415 under the  Securities  Act of
1933, check the following box. |X|

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

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

If delivery  of the  prospectus  is  expected  to be made  pursuant to Rule 434,
please check the following box. |_|
<TABLE>
<CAPTION>
                                                    Calculation Of Registration Fee
-------------------------------------------------- ------------------- ---------------- ------------------- --------------------
                                                                          Proposed       Proposed Maximum
  Title of Each Class of shares of common stock      Amounts to be         Maximum      Aggregate Offering       Amount of
                to be Registered                     Registered(1)     Offering Price        Price(1)        Registration Fee
                                                                        per Share(1)
-------------------------------------------------- ------------------- ---------------- ------------------- --------------------
<S>                                                   <C>                <C>              <C>                      <C>
common stock, no par value                            1,500,000          $7.22(1)        $10,830,000.00           $2,859.00
-------------------------------------------------- ------------------- --------------- ------------------- --------------------
common stock, no par value                              169,224          $7.22(1)         $1,221,797.00           $  323.00
-------------------------------------------------- ------------------- --------------- ------------------- --------------------
common stock issuable upon exercise of warrants         150,000         $15.00(2)         $2,250,000.00           $  594.00
-------------------------------------------------- ------------------- --------------- ------------------- --------------------
common stock issuable upon exercise of warrants         150,000          $8.50(2)         $1,275,000.00           $  337.00
-------------------------------------------------- ------------------- --------------- ------------------- --------------------
common stock issuable upon exercise of warrants         171,146          $6.60(2)         $1,129,564.00           $  298.00
-------------------------------------------------- ------------------- --------------- ------------------- --------------------
common stock issuable upon exercise of warrants           3,500        $6.8125(2)            $23,844.00           $    6.00
-------------------------------------------------- ------------------- ---------------- ------------------- --------------------
                                            Total     2,143,870
-------------------------------------------------- ------------------- ---------------- ------------------- --------------------
<FN>
(1)  Estimated  solely for the purpose of calculating the amount of registration
     fee pursuant to Rule 457(c) under the  Securities  Act of 1933, as amended,
     based on the average of the high and low prices of the common  stock on the
     Nasdaq Stock Market on November 2, 2000.

(2)  Represents the exercise price of the warrants.
</FN>
</TABLE>

The Registrant hereby amends this  Registration  Statement on such date or dates
as may be necessary to delay its  effective  date until the  Registrant  files a
further amendment which  specifically  states that this  Registration  Statement
shall  thereafter  become  effective  in  accordance  with  Section  8(a) of the
Securities  Act of  1933  or  until  the  Registration  Statement  shall  become
effective  on such  date  as the  Securities  and  Exchange  Commission,  acting
pursuant to Section 8(a), may determine.
<PAGE>

                  Subject to completion, dated November 7, 2000

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

                                   PROSPECTUS

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


                          Cellegy Pharmaceuticals, Inc.
                        2,143,870 shares of common stock

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


       Cellegy's common stock currently trades on the Nasdaq Stock Market.
         Last reported sale price on November 6, 2000 $7.00 per share.
                              Trading Symbol: CLGY

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

                                  The Offering

         These  shares  may be  offered  and sold over time by the  shareholders
named in this  prospectus  under the heading  "Selling  Shareholders,"  by their
pledgees or donees,  or by other  transferees  that receive the shares of common
stock in  transfers  other than  public  sales.  Of the  shares  covered by this
prospectus,  1,500,000 shares were previously issued by Cellegy Pharmaceuticals,
Inc.  in  a  private  placement  transaction,  169,224  shares  were  issued  in
connection  with an  acquisition,  and  474,646  shares  are  issuable  upon the
exercise of warrants granted before the date of this prospectus.

         The Selling  Shareholders  may sell the shares of Cellegy  common stock
covered by this prospectus in the open market at prevailing market prices, or in
private transactions at negotiated prices. They may sell the shares directly, or
may sell them through underwriters,  brokers, or dealers. Underwriters, brokers,
or dealers may receive discounts,  concessions,  or commissions from the selling
shareholders or from the purchaser,  and this compensation might be in excess of
the  compensation  customary in the type of transaction  involved.  "See Plan of
Distribution." All expenses of this registration are being borne by Cellegy, but
all selling and other  expenses  incurred  by the Selling  Shareholders  will be
borne by the Selling Shareholders.  We will not receive any of the proceeds from
the sale of these shares,  although we may receive proceeds from the exercise of
the warrants, if those warrants are exercised for cash.

         Our Common  Stock is listed on the  Nasdaq  National  Market  under the
symbol  "CLGY." On November 6, 2000,  the reported last sale price of the common
stock on the Nasdaq National Market was $7.00 per share.

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

This investment  involves a high degree of risk.  Please carefully  consider the
"Risk Factors" beginning on page 3 of this prospectus.

Neither  the  Securities  and  Exchange  Commission  nor  any  state  securities
commission  has  approved or  disapproved  these  securities  or passed upon the
adequacy or accuracy of this prospectus. Any representation to the contrary is a
criminal offense.

                 The date of this prospectus is November 7, 2000


********************************************************************************
The  information in this  prospectus is not complete and may be changed.  We may
not sell  these  securities  until the  registration  statement  filed  with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to  sell  these  securities  and it is not  soliciting  an  offer  to buy  these
securities in any state where the offer or sale is not permitted.
********************************************************************************

                                       1
<PAGE>


         In connection  with this offering,  no person is authorized to give any
information or to make any representations not contained in this prospectus.  If
such  information  is given or  representations  made,  you may not rely on such
information or  representations as having been authorized by us. This prospectus
is neither an offer to sell nor a solicitation of an offer to buy any securities
other than those registered hereby, nor is it an offer to sell or a solicitation
of an offer to buy  securities  where  such an  offer or  solicitation  would be
unlawful.  You may not imply from the delivery of this prospectus,  nor from any
sale made under this  prospectus,  that our affairs are unchanged since the date
of this  prospectus  or that the  information  contained in this  prospectus  is
correct as of any time after the date of this prospectus.

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

                                TABLE OF CONTENTS

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

Forward-looking Statements....3      Plan of Distribution...................10
The Company...................3      Where You Can Find More Information....11
Risk Factors..................3      Documents Incorporated by Reference....12
Use of Proceeds...............8      Legal Matters..........................12
Selling Shareholders..........8      Experts................................12

         Unless the context otherwise requires,  the terms "we," "our," "us" and
"Cellegy" refer to Cellegy  Pharmaceuticals,  Inc., a California corporation and
its subsidiaries.

                                       2
<PAGE>

                          FORWARD - LOOKING STATEMENTS

         This  Registration  Statement  on  Form  S-3  includes  forward-looking
statements   that   involve   substantial   risks   and   uncertainties.   These
forward-looking  statements  are not historical  facts,  but rather are based on
current  expectations,  estimates,  and  projections  about  our  industry,  our
beliefs,  and  our  assumptions.   Words  such  as  "believes,"   "anticipates,"
"expects,"   "intends"  and  similar   expressions   are  intended  to  identify
forward-looking  statements, but are not the exclusive means of identifying such
statements.  These  forward-looking  statements  are not  guarantees  of  future
performance and concern matters that involve risks and uncertainties  that could
cause our actual results to differ materially from those in the  forward-looking
statements.  These risks and  uncertainties  include  those  described  in "Risk
Factors" and elsewhere in this prospectus.  Further,  we undertake no obligation
to  revise  any  forward-looking  statements  in  order  to  reflect  events  or
circumstances  that may arise after the date of this  report.  Actual  events or
results may differ materially from those discussed in this prospectus.

                                   THE COMPANY

     We are a development-stage specialty  bio-pharmaceutical company engaged in
the  development  of  prescription  drugs  and skin care  products  based on our
patented topical and transdermal drug delivery technologies.

     Cellegy's most advanced prescription product candidates include Anogesic(R)
(nitroglycerin   ointment),  a  product  for  treatment  of  anal  fissures  and
hemorrhoids,  Tostrex(TM)  (testosterone  gel),  a  transdermal  product for the
treatment of male hypogonadism,  and Tostrelle(TM) (testosterone gel), a product
for treatment of female sexual  dysfunction.  Anogesic(R)  and  Tostrex(TM)  are
currently undergoing Phase III clinical trials.

     In addition to prescription drugs, Cellegy is developing and testing a line
of  non-prescription  skin care  products.  One of its  product  blends is being
marketed through a major specialty retailer in the United States.

                                  RISK FACTORS

         Please carefully  consider the specific factors set forth below as well
as the other  information  contained in, or incorporated by reference into, this
prospectus  before  purchasing  shares  of our  common  stock.  This  prospectus
contains  forward-looking  statements that involve risks and uncertainties.  Our
actual  results  may differ  significantly  from the  results  discussed  in the
forward-looking statements.  Factors that might cause such a difference include,
but are not limited to, those discussed below.

We have a history  of  losses,  and we expect  losses to  continue  for at least
several years.

         Our  accumulated  deficit as of  September  30, 2000 was  approximately
$47.2 million. We have never operated profitably and, given our planned level of
operating expenses,  we expect to continue to incur losses for at least the next
several  years.  We plan to increase  our  operating  expenses as we continue to
devote   significant   resources  to  preclinical   studies,   clinical  trials,
administrative,  marketing  and patent  activities.  We have not  generated  any
significant  revenues from  royalties or licensing of our  technologies,  and we
expect that it will take several years for our major prescription products to be
approved in the larger pharmaceutical markets. Accordingly,  without substantial
revenues from new corporate collaborations,  royalties on product sales or other
revenue sources,  we expect to incur substantial and increased  operating losses
in the  foreseeable  future as our earlier  stage  potential  products move into
clinical  development,  and as we  invest  in  research  or  acquire  additional
technologies,  product candidates or businesses.  Our losses may increase in the
future,  and  even if we  achieve  our  revenue  targets,  we may not be able to
sustain or increase  profitability on a quarterly or annual basis. The amount of
future net losses, and the time required to reach profitability, are both highly
uncertain.  To achieve  sustained  profitable  operations,  we must, among other
things,  successfully  discover,  develop,  obtain regulatory  approvals for and
market  pharmaceutical or cosmeceutical  products.  We cannot assure you that we
will ever be able to achieve or sustain profitability.

Our clinical trial results are very difficult to predict in advance, and failure
of one or more clinical trials could adversely affect our business and our stock
price.

     Before  we  obtain  regulatory  approval  for the  commercial  sale of most
potential drug products,  we must demonstrate  through  preclinical  studies and
clinical trials that the product is safe and efficacious for use in the



                                       3
<PAGE>

clinical  indication for which approval is sought.  We cannot assure you that we
will be permitted by the U.S. Food and Drug  Administration (the "FDA") or other
international  regulatory  authorities to undertake or continue  clinical trials
for any of our potential  products or, if such trials are  permitted,  that such
products will demonstrate safety and efficacy.  Moreover, results of preclinical
studies and early  clinical  trials may not be good  predictors  of results that
will be obtained  in  later-stage  clinical  trials.  We cannot  assure you that
Cellegy's present or future clinical trials,  including for example, the current
Phase III clinical trials using our Anogesic(R) and Tostrex(TM) products, or the
current Phase I/II dose ranging study for  Tostrelle(TM),  will  demonstrate the
results  required  for approval to market  these  potential  products or even to
continue with additional  clinical  development.  Because of the independent and
blind nature of certain human clinical  testing,  there will be extended periods
during the testing  process  when we will have only  limited,  or no,  access to
information  about the  status or results  of the  tests.  Other  pharmaceutical
companies have believed that their products  performed  satisfactorily  in early
tests,  only to find  their  performance  in later  tests,  including  Phase III
clinical  trials,  to be  inadequate  or  unsatisfactory,  or that FDA  Advisory
Committees  have  declined to recommend  approval of the drugs,  or that the FDA
itself refused approval,  with the result that such companies' stock prices have
fallen  precipitously.  If  Anogesic(R)  or  Tostrex(TM)  fail  to  successfully
complete the current  Phase III trials or related  clinical  testing,  including
toxicology  studies,  our  business  and stock  price  would be  materially  and
adversely affected.

Our potential products are in early stages of product  development,  and we have
not sought regulatory approval to distribute any products.

         To date,  we have not sought  regulatory  approval  to  distribute  any
products.  The time and resource  commitment  required to achieve market success
for any individual product is extensive and uncertain. We cannot assure you that
our product  development  efforts will be successful,  that required  regulatory
approvals can be obtained,  that potential  products can be  manufactured  at an
acceptable cost and with appropriate  quality or that any approved  products can
be successfully marketed.

         With the exceptions of certain skin care cosmeceutical products and our
Rectogesic  (nitroglycerin  ointment) product, Cellegy has not yet completed the
development of other products or sought regulatory approval for the marketing of
our drug  products  and have not begun to market or generate  revenues  from our
prescription  products.  Development  of our  potential  products  will  require
significant   additional  research  and  testing.   Many  of  Cellegy's  product
development efforts are based upon technologies and therapeutic  approaches that
have not  completed  clinical  testing.  In  addition,  results  of  certain  of
Cellegy's studies have not been widely published in medical journals or reviewed
by  independent  third  parties,  and as a result  have not  been  subjected  to
significant review by independent parties.

     Cellegy's  potential  products are subject to the risks of failure inherent
in the  development  of all products based on new  technologies.  These possible
risks include:

     o   significant delays in clinical trial completion times;

     o   Cellegy's therapeutic approaches will not be successful;

     o   the results  from future  clinical  trials may not  correlate  with any
         safety or efficacy  results from prior  clinical  studies  conducted by
         Cellegy or others;

     o   Cellegy's potential products will not be successfully developed;

     o   products  will not be found to be safe  and  effective  by the FDA,  or
         other international regulatory agencies; and

     o   our future  clinical and research and  development  activities will not
         result in any commercially viable products.

Possible FDA  regulation of our  cosmeceutical  products as drugs could prohibit
them from being commercialized.

     Subject to the other risks  discussed in this  prospectus,  including those
described  below  under  the  heading  "Our  product  sales  strategy  involving
corporate partners is highly uncertain.  No new partnership agreements have been
finalized",  Cellegy  intends to  introduce  products  that will  compete in the
cosmeceutical  market,  including  a product  line that will  compete in what is
generally referred to as the "anti-wrinkling"  market.  "Cosmeceuticals" are not
defined in the Food, Drug and Cosmetics Act. The FDA has not defined the term by
regulation  and may  consider  use of the  term to  imply  drug-like  qualities.
Cosmeceuticals  (a hybrid of the words  "cosmetics" and  "pharmaceuticals")  are
products that contain active  ingredients  which, when applied to the skin, will
enhance


                                       4
<PAGE>

appearance.  Cosmeceuticals which satisfy the definition of a cosmetic under the
FD&C Act and which are not also drugs under that  statute are not subject to the
same FDA  requirements  as drug  products.  The FDA may contend that one or more
cosmeceutical  products,  including  Cellegy's  or  competitors'  anti-wrinkling
products that are currently  marketed or may in the future be marketed,  are not
cosmetics but instead are subject to regulation as drugs.

Competition and  biotechnological  discoveries  are  increasing.  In the future,
Cellegy may not have the resources required to develop innovative products.

         The  pharmaceutical  and cosmeceutical  industries are subject to rapid
and  significant  technological  change.  In the  development  and  marketing of
topical prescription drugs, skin care and other cosmeceutical  products and drug
delivery systems,  Cellegy faces intense competition.  Competitors of Cellegy in
the United  States and abroad are  numerous  and include,  among  others,  major
pharmaceutical,   chemical,   cosmetic,   consumer  product,  and  biotechnology
companies,  specialized  firms,  universities  and other research  institutions.
Cellegy's  competitors may succeed in developing  technologies and products that
are more effective  than any that we are  developing and could render  Cellegy's
technology and potential  products  obsolete and  noncompetitive.  Many of these
competitors  have  substantially  greater  financial  and  technical  resources,
clinical  production and marketing  capabilities and regulatory  experience.  In
addition, these companies and academic and research institutions compete with us
in  recruiting  and  retaining  highly   qualified   scientific  and  management
personnel.  As a result,  we cannot  assure you that  Cellegy's  products  under
development  will be able to compete  successfully  with  existing  products  or
innovative products under development by other organizations.

The type and scope of patent  coverage we have may limit the commercial  success
of our products.

     Cellegy's  success  depends,  in part,  on our  ability  to  obtain  patent
protection for our products and methods,  both in the United States and in other
countries.  Several of Cellegy's products are based on existing compounds with a
history of use in humans but are being  developed by Cellegy for new therapeutic
use in skin  diseases.  Cellegy cannot obtain  composition  patent claims on the
compound  itself,  and  will  instead  need to rely on  patent  claims,  if any,
directed  to use of the  compound  to treat  certain  conditions  or to specific
formulations we are attempting to develop.  Cellegy may not be able to prevent a
competitor from using our formulations or compounds for a different purpose.  We
cannot assure you that any  additional  patents will be issued to Cellegy,  that
the protection of any patents issued in the future will be commercially valuable
or that current or future patents will be held valid if subsequently challenged.

     The patent  position of companies  engaged in businesses  such as Cellegy's
business   generally  is  uncertain  and  involves  complex  legal  and  factual
questions.  There is a substantial  backlog of patent applications at the United
States Patent and Trademark  Office.  Further,  issued patents can later be held
invalid by the patent office  issuing the patent or by a court.  There can be no
assurance that any patent applications relating to Cellegy's products or methods
will issue as patents,  or, if issued,  that the patents will not be challenged,
invalidated or circumvented  or that the rights granted  thereunder will provide
us a competitive advantage. In addition, many other organizations are engaged in
research  and product  development  efforts in drug  delivery,  skin biology and
cosmeceutical   fields  that  may  overlap   with   Cellegy's   products.   Such
organizations may currently have, or may obtain in the future,  legally blocking
proprietary rights,  including patent rights, in one or more products or methods
under development or consideration by Cellegy.  These rights may prevent us from
commercializing  technology, or may require Cellegy to obtain a license from the
organizations to use the technology.  Cellegy may not be able to obtain any such
licenses that may be required on reasonable  financial terms, if at all, or that
the patents underlying any such licenses will be valid or enforceable. Moreover,
the laws of certain  foreign  countries  do not  protect  intellectual  property
rights  relating to United  States  patents as  extensively  as those rights are
protected in the United States.  Cellegy is subject to the risk that individuals
or organizations located in such countries will engage in development, marketing
or sales activities of Cellegy's products.

     Our agreement with the University of California (the "University") gives us
exclusive license right to certain drug delivery technology that contain certain
development  and performance  milestones  which Cellegy must satisfy in order to
retain such rights. We are currently  negotiating with the University concerning
amending the milestone  dates in the  agreement.  While we currently  believe we
will be able to satisfy the revised  milestone  dates, a loss of rights to these
technologies could have a material effect on our business and stock price.


                                       5
<PAGE>

Our product sales strategy involving corporate partners is highly uncertain.  No
new partnership agreements have been finalized.

     Cellegy is actively seeking to enter into agreements with certain corporate
partners  granting  rights to  commercialize  our lead products.  Cellegy has an
agreement  with one  academic  institution,  and  intends  to enter  into  other
collaborative agreements in the future. Cellegy may rely on its partners to:

     o   conduct clinical trials;

     o   to obtain regulatory approvals; and

     o   if approved, to manufacture and market or co-promote these products.

     Once  agreements are completed,  Cellegy may have little or no control over
the  development  of these  potential  products and little or no  opportunity to
review clinical data before or after public  announcement  of results.  Further,
Cellegy may not be able to establish any such  collaborative  arrangements,  and
any arrangements that may be established may not be successful. Failure to enter
into any such  arrangements  could have a material adverse effect on our ability
to develop  and  market  our  products,  particularly  in certain  international
markets.  If we are unable to find  another  corporate  partner  to develop  and
market Glylorin or our cosmeceutical products, they may never be commercialized.

We are  subject to  regulation  by  regulatory  authorities  including  the FDA;
obtaining  approval  to  market  drugs  is a  lengthy  process,  and  regulatory
authorities could delay or prevent marketing of our products.

         The   research,    development,    testing,   manufacture,    labeling,
distribution,  marketing and advertising of products such as Cellegy's products,
and our ongoing  research and development  activities,  are subject to extensive
regulation by governmental regulatory authorities in the United States and other
countries.  The extensive  preclinical  and clinical  testing  requirements  and
regulatory  approval  process  of the FDA in the  United  States  and of certain
foreign regulatory  authorities require a number of years and the expenditure of
substantial resources.  We may not be able to obtain the necessary approvals for
clinical  testing or for the  marketing of products on a timely basis or at all.
Moreover,  additional  government  regulations  may be  established  that  could
prevent or delay regulatory approval of Cellegy's products.  Delays in obtaining
regulatory  approvals  could have a material  adverse effect on our business and
stock price. Even if regulatory approval of a product is granted,  such approval
may include significant  limitations on the indicated uses of the product or the
manner in which or conditions under which the product may be marketed. Moreover,
failure to comply  with  regulatory  requirements  for  marketing  drugs,  or if
Cellegy's  cosmeceutical  products  are  deemed  to be drugs  by the FDA,  could
subject Cellegy to regulatory or judicial  enforcement actions,  including,  but
not limited to, product  recalls or seizures,  injunctions  against  production,
distribution,  sales and marketing,  civil  penalties,  criminal  prosecution of
Cellegy,  our  officers  or  employees,  refusals to approve  new  products  and
suspensions  and  withdrawals  of  existing  approvals,  as well as  potentially
increased product liability  exposure.  Sales of Cellegy's  products outside the
United  States will be subject to  regulatory  requirements  governing  clinical
trials and marketing  approval.  These  requirements vary widely from country to
country and could delay introduction of Cellegy's products in those countries.

Our prospects for obtaining additional financing, if required, are uncertain and
failure to obtain needed financing could affect our ability to develop or market
products.

     Throughout our history,  we have consumed  substantial amounts of cash. Our
cash needs are expected to continue to increase  significantly over at least the
next several years in order to fund the additional  expenses  required to expand
our current research and development programs.  Cellegy has no current source of
significant  ongoing  revenues or capital beyond existing cash and  investments,
and certain  product  sales of  Rectogesic  in  Australia  and to  Gryphon,  the
development  subsidiary of a major specialty retailer.  In order to complete the
research and development and other  activities  necessary to  commercialize  our
products, additional financing will be required.

     Cellegy  will  seek  private  or  public  equity   investments  and  future
collaborative  arrangements  with third  parties to help fund future cash needs.
Such funding may not be available on acceptable  terms, if at all.  Insufficient
funding may require  Cellegy to delay,  reduce or  eliminate  some or all of our
research and development activities or planned clinical trial programs.  Cellegy
believes that available  cash resources and interest  earned will be adequate


                                       6
<PAGE>

to satisfy its capital needs through at least December 31, 2001.

We  currently  have no  products we sell on our own and have  limited  sales and
marketing experience.

         We may market certain of our products,  if  successfully  developed and
approved,  through a direct sales force in the United  States and through  sales
and  marketing  partnership  or  distribution  arrangements  outside  the United
States. Cellegy has very limited experience in sales, marketing or distribution.
To market our products  directly,  we intend to establish a marketing  group and
direct  sales  force in the  United  States  or  obtain  the  assistance  of our
marketing  partner.  If we enter into marketing or licensing  arrangements  with
established  pharmaceutical companies, our revenues will be subject to the terms
and conditions of such  arrangements and will be dependent on the efforts of our
partner. Cellegy may not be able to successfully establish a direct sales force,
or assure  you that our  collaborators  may not  effectively  market  any of our
potential products, and either circumstance could have a material adverse effect
on our business and stock price.

We have not  manufactured  products before and are dependent on a limited number
of critical suppliers.

         Cellegy has no direct experience in manufacturing commercial quantities
of products and currently does not have any capacity to manufacture  products on
a large  commercial  scale.  We currently  rely on a limited  number of contract
manufacturers and suppliers to manufacture our formulations. Although we believe
that there will be adequate third party manufacturers, there can be no assurance
that we will be able to enter  into  acceptable  agreements  with  them.  In the
future,  we may not be able to obtain  contract  manufacturing  on  commercially
acceptable  terms for  compounds or product  formulations  in the  quantities we
need.  Manufacturing  or quality  control  problems  could occur at the contract
manufacturers  such that they may not be able to  maintain  compliance  with the
FDA's current good  manufacturing  practice  requirements  necessary to continue
manufacturing our products.

The health  care  industry  is  unpredictable,  and  changes in the health  care
industry could adversely affect our business.

         The health care industry is subject to changing political, economic and
regulatory influences that may significantly affect the purchasing practices and
pricing of human therapeutics.  Cost containment measures, whether instituted by
health care providers or enacted as a result of government health administration
regulators  or new  regulations,  such as  pricing  limitations  or  formulating
eligibility  for  dispensation  by medical  providers,  could  result in greater
selectivity in the availability of treatments.  Such  selectivity  could have an
adverse effect on Cellegy's ability to sell prescription  products, and adequate
third party  coverage may not be available for Cellegy to maintain  price levels
sufficient  to  generate  an  appropriate  return on our  investment  in product
development. The trend towards managed health care in the United States, as well
as legislative  proposals to reform health care or reduce  government  insurance
programs,  may result in lower  prices or  proposals  to reform  health  care or
reduce  government  insurance  programs  may  result in lower  prices or reduced
markets for  Cellegy's  products.  The adoption of any such  measures or reforms
could have a material adverse effect on the business and financial  condition of
Cellegy. Moreover,  cosmeceutical products generally are not reimbursed by third
party payors.

We have  very  limited  staffing  and will  continue  to be  dependent  upon key
employees

         Our  success is  dependent  upon the efforts of a small  technical  and
management  team.  If key  individuals  leave  Cellegy,  we could  be  adversely
affected if suitable replacement personnel are not quickly recruited. Our future
success  depends  upon our ability to  continue to attract and retain  qualified
scientific,  marketing and technical personnel. There is intense competition for
qualified personnel in all functional areas, and competition particularly in the
San Francisco Bay Area where our  principal  facility is located,  which make it
difficult  to attract  and  retain the  qualified  personnel  necessary  for the
development and growth of our business.

We are subject to the risk of product liability lawsuits.

         The testing,  marketing and sale of human health care products  entails
an inherent risk of allegations of product liability. We are subject to the risk
that  substantial  product  liability claims could be asserted against us in the
future.  Cellegy  has  obtained  limited  amounts of  insurance  relating to our
clinical  trials.  There can be no assurance that Cellegy will be able to obtain
or maintain insurance on acceptable terms,  particularly in overseas  locations,
for clinical and  commercial  activities  or that any  insurance  obtained  will
provide adequate protection


                                       7
<PAGE>

against potential liabilities.

Our stock price could be volatile.

         Our stock price has from time to time experienced significant price and
volume   fluctuations   that  may  be  unrelated   to   operating   performance.
Announcements that could significantly impact our stock price include:

     o   clinical trial results;

     o   developments or disputes concerning patent or proprietary rights;

     o   publicity  regarding  actual or potential  clinical results relating to
         our products under development or by our competitors;

     o   regulatory   developments   in  both  the  United  States  and  foreign
         countries;

     o   sales of a large number of shares of Common Stock in the market;

     o   economic and other external factors; and

     o   period-to-period fluctuations in financial results.

Our quarterly operating results are subject to fluctuations,  which could affect
our stock price.

         Given the uncertain nature of drug development,  it is difficult for us
to predict  operating  expenses  and  revenues  from  period to  period.  If our
products are approved,  it will be very difficult to predict the  sustainability
of initial prescription  patterns and resulting revenues of our products.  These
potential  fluctuations  in financial  results may  negatively  impact our stock
price.

                                 USE OF PROCEEDS

         If the  warrants  described  under  "Selling  Shareholders"  below  are
exercised  for cash,  then we would  receive the proceeds  from  exercise of the
warrants.  However, we will not receive any proceeds from the sale of the common
stock by any of the selling shareholders.

                              SELLING SHAREHOLDERS

         We are  registering the shares of common stock pursuant to (i) a Common
Stock  Purchase  Agreement  dated as of  October  2,  2000  (the  "October  2000
Agreement"), by and among Cellegy and the selling shareholders named below under
the heading "October 2, 2000 Purchasers," (ii) a warrant dated March 21, 2000 by
Cellegy and Gruntal & Co.  L.L.C.,  dated March 21,  2000,  to purchase  150,000
shares of common  stock at an  exercise  price of $8.50 per share at any time or
from time to time after  March 21, 2001 until  March 21,  2004,  (iii) a warrant
dated March 21, 2000,  granted by Cellegy to Gruntal to purchase  150,000 shares
of common  stock at an  exercise  price of $15.00  per  share,  at any time from
September  21, 2001 until  March 21,  2004,  (iv) a warrant  dated June 13, 2000
granted by Cellegy to Richcone  Pty Ltd,  to  purchase  up to 171,146  shares of
common stock at an exercise  price of $6.60 per share,  expiring  June 13, 2002,
(v) the  Stock  Purchase  Agreement  dated as of  April  14,  2000 by and  among
Cellegy,  Quay Pharmaceuticals Pty Ltd ACN 084 808 882, Richcone Pty Ltd ACN 064
469 861,  Cellegy  Australia  Pty Ltd ACN 092 129 596, and Dr. David Z. Lubowski
(the "Cellegy Australia Agreement");  and (vi) a warrant dated February 25, 2000
granted by Cellegy to Marc Parham to purchase up to 3,500 shares of common stock
at an exercise price of $6.8125 per share in consideration of services  provided
to Cellegy.  The  warrants to Gruntal were issued in  consideration  of services
provided by that firm to Cellegy.

         The following table sets forth  information with respect to the selling
shareholders  and the shares of the common stock that may be offered pursuant to
this prospectus (the "shares").  Except as described below,  none of the selling
shareholders  has, or within the past three years has had, any position,  office
or other material relationship with us or any of our predecessors or affiliates.

         Each  selling  shareholder  represented  to  us,  in  their  respective
agreements,  that they were  purchasing  such shares for  investment and with no
present  intention of distributing  or reselling such  securities.  However,  in
recognition of the fact that each such shareholder,  even though purchasing such
shares for  investment,  wishes to be legally  permitted to sell the shares when
they  deem  appropriate,   we  are  filing  this  registration  statement.  Upon



                                       8
<PAGE>

effectiveness, the selling shareholders may from time to time offer and sell any
or all of  their  shares  pursuant  to  this  prospectus.  Because  the  selling
shareholders  are not  obligated  to sell  shares of common  stock,  and because
selling  shareholders  may also  acquire  publicly  traded  shares of our common
stock,  we  cannot  estimate  how many  shares  of  common  stock  each  selling
shareholder will beneficially own after this offering.
<TABLE>
<CAPTION>

                                           Shares of Common Stock
                                           Beneficially Owned (1)       Number of          Shares of Common Stock
                                           Prior to the Offering          Shares           Beneficially Owned (1)
                                           ---------------------          Being              After the Offering
                                             Number      Percent         Offered              Number       Percent
                                             ------      -------         -------              ------       -------
<S>                                        <C>            <C>            <C>                <C>            <C>
October 2000 Purchasers

Four Partners                              3,550,400 (2)  25.8%          425,000            3,125,400      25.5%
SMALLCAP World Fund, Inc.                    825,000       6.0%          825,000                 --         0.0%
Framlington Health Fund                      125,000       0.9%          125,000                 --         0.0%
Munder Framlington Healthcare Fund           125,000       0.9%          125,000                 --         0.0%

Other Selling Shareholders

Gruntal & Co., L.L.C.                        300,000 (3)   2.1%          300,000                 --         0.0%
Richcone Pty Ltd                             340,369 (4)   2.4%          340,369                 --         0.0%
Quay Pharmaceuticals Pty Ltd                       1       0.0%                1                 --         0.0%
Marc Parham                                    3,500       0.0%            3,500                 --         0.0%

<FN>
------------------------
(1)  Beneficial  ownership is  determined  in  accordance  with the rules of the
Securities and Exchange  Commission and generally  includes voting or investment
power with respect to securities.  Unless otherwise indicated below, the persons
and entities named in the table have sole voting and sole investment  power with
respect to all shares  beneficially  owned,  subject to community  property laws
where applicable.

(2) Consists of: (i)  1,150,000  shares of common stock owned by Four  Partners,
including the 425,000 shares covered by this  prospectus;  (ii) 47,700 shares of
common stock owned by Four-Fourteen Partners LLC; (iii) 448,830 shares of common
stock owned by The Andrew H. Tisch 1999 Annuity Trust I; (iv) 448,830  shares of
common  stock  owned by The Daniel R. Tisch 1999  Annuity  Trust I; (v)  448,830
shares of common  stock owned by The James S. Tisch 1999  Annuity  Trust I; (vi)
448,830  shares of common stock owned by The Thomas J. Tisch 1999 Annuity  Trust
I; (vii) 19,200  shares of common stock held by James S. Tisch as custodian  for
his children; (viii) 129,270 shares of common stock owned by The Andrew H. Tisch
2000 Annuity  Trust VI; (ix) 129,270  shares of common stock owned by The Daniel
R. Tisch 2000 Annuity Trust VI; (x) 129,270  shares of common stock owned by The
James S. Tisch 2000 Annuity Trust VI; (xi) 129,270  shares of common stock owned
by The Thomas J. Tisch 2000 Annuity Trust VI; (xii) 7,500 shares of common stock
owned by Felix J. Baker;  and (xiii) 13,600 shares of common stock jointly owned
by Julian C. Baker and Felix J. Baker  through a  partnership  of which they are
the sole partners.

       Four  Partners is a New York general  partnership,  the sole  partners of
which are Andrew H. Tisch 1991 Trust,  for which Andrew H. Tisch is the managing
trustee,  Daniel R. Tisch 1991 Trust,  for which Daniel R. Tisch is the managing
trustee,  James S. Tisch 1991 Trust,  for which  James S. Tisch is the  managing
trustee,  and  Thomas J.  Tisch  1991  Trust,  for which  Thomas J. Tisch is the
managing  trustee.  Four Partners might be deemed to be the beneficial  owner of
the  shares  of common  stock  owned by the 1999  Annuity  Trusts I and the 2000
Annuity Trust VI, by James S. Tisch as custodian enumerated above.

       Cellegy has an  agreement  that so long as Four  Partners and persons and
entities  associated  with Four  Partners  and/or the Tisch  Family own at least
1,250,000  shares of Cellegy  Common Stock,  that Cellegy will,  upon request of
such  shareholders,  increase the authorized  number of the members of Cellegy's
Board of Directors and cause one designee of such  shareholders  to be nominated
and  elected to fill one such  position on the Board of  Directors.  Pursuant to
that agreement, Felix Baker was designated and elected a director of Cellegy.

(3) Consists of a warrant to purchase 150,000 shares  exercisable  between March
21,  2001 and March 21,  2004 at an  exercise  price of $8.50 per  share,  and a
warrant to purchase 150,000 shares  exercisable  between  September 21, 2001 and
March 21, 2004 at an exercise price of $15.00 per share.

(4) Consists of a warrant dated June 13, 2000, to purchase  171,146 shares at an
exercise price of $6.60 per share, and 169,223 shares of common stock.
</FN>
</TABLE>

       Pursuant  to the  Cellegy  Australia  Agreement,  in  June  2000  Cellegy
acquired all of the outstanding shares of Cellegy  Australia.  Before that date,
Richcone and Quay Pharmaceuticals had to transferred to Cellegy Australia assets

                                       9
<PAGE>

consisting  primarily  of  Quay's  product,   named  Rectogesic   (nitroglycerin
ointment), for the treatment of anal fissures, and related intellectual property
and assets relating to the Australian and South African markets.

                              PLAN OF DISTRIBUTION

         We have filed a Registration Statement of which this prospectus forms a
part  pursuant to  registration  rights we granted to the  selling  shareholders
pursuant to the October 2000 Agreement, the Cellegy Australia Agreement, and the
Gruntal Warrants.

         To  our  knowledge,   no  selling  shareholder  has  entered  into  any
agreement,  arrangement or  understanding  with any particular  broker or market
maker with respect to the shares of common stock offered hereby,  nor do we know
the identity of the brokers or market makers that will  participate  in the sale
of the  shares.  As used in this  prospectus,  the term  "selling  shareholders"
includes  donees and  pledgees  selling  shares  received  from a named  selling
shareholder after the date of this prospectus.

         Who  May  Sell;  How  Much;   Applicable   Restrictions.   The  selling
shareholders  may from time to time  offer the  shares of common  stock  through
brokers,  dealers  or  agents  who  may  receive  compensation  in the  form  of
discounts,  concessions or commissions from the selling  shareholders and/or the
purchasers  of the  shares  of common  stock for whom they may act as agent.  In
effecting sales, broker-dealers that are engaged by the selling shareholders may
arrange for other  broker-dealers to participate.  The selling  shareholders and
any such brokers,  dealers or agents who participate in the  distribution of the
shares of common  stock may be deemed to be  "underwriters,"  and any profits on
the sale of the shares of common stock by them and any discounts, commissions or
concessions  received by any such brokers,  dealers or agents might be deemed to
be  underwriting  discounts and  commissions  under the  Securities  Act. To the
extent the selling  shareholders may be deemed to be  underwriters,  the selling
shareholders may be subject to certain  statutory  liabilities of, including but
not  limited to,  Sections  11, 12 and 17 of the  Securities  Act and Rule 10b-5
under  the  Exchange  Act.  To our  knowledge,  there  are  currently  no plans,
arrangements or understandings  between any selling shareholders and any broker,
dealer, agent or underwriter regarding the sale of the shares of common stock by
the selling shareholders.

         Manner of Sales and Applicable  Restrictions.  The selling shareholders
will act  independently  of  Cellegy  in making  decisions  with  respect to the
timing,  manner  and size of each  sale.  Such sales may be made over the Nasdaq
Stock Market or otherwise,  at then prevailing  market prices, at prices related
to prevailing market prices or at negotiated  prices. The shares of common stock
may be sold according to one or more of the following methods:

         (a)   a block  trade in which the  broker or  dealer  so  engaged  will
               attempt  to sell the  shares  of  common  stock as agent  but may
               position  and  resell a  portion  of the  block as  principal  to
               facilitate the transaction;

         (b)   purchases by a broker or dealer as  principal  and resale by such
               broker or dealer for its account pursuant to this prospectus;

         (c)   an  over-the-counter  distribution  in accordance with the Nasdaq
               rules;

         (d)   ordinary  brokerage  transactions  and  transactions in which the
               broker solicits purchasers;

         (e)   privately negotiated transactions.

         A selling  shareholder  may  decide not to sell any  shares.  We cannot
assure you that any selling  shareholder will use this prospectus to sell any or
all of the shares.  Any shares covered by this prospectus which qualify for sale
pursuant to Rule 144 or Rule 144A of the  Securities  Act 1933 may be sold under
Rule 144 or Rule 144A rather than pursuant to this  prospectus.  In addition,  a
selling  shareholder may transfer,  devise or gift the shares by other means not
described in this prospectus.

         Certain   persons   participating   in  this  offering  may  engage  in
transactions  that  stabilize,  maintain  or  otherwise  affect the price of our
common stock,  including  the entry of  stabilizing  bids or syndicate  covering
transactions or the imposition of penalty bids. The selling shareholders and any
other person  participating in such  distribution  will be subject to applicable
provisions  of the  Exchange  Act  and  the  rules  and  regulations  thereunder
including,  without  limitation,  Regulation M (which  regulation  may limit the
timing  of  purchases  and sales of any of


                                       10
<PAGE>

the  shares of  common  stock by the  selling  shareholders  and any other  such
person). The  anti-manipulation  rules under the Exchange Act may apply to sales
of shares of common  stock in the market and to the  activities  of the  selling
shareholders and their affiliates. Furthermore, Regulation M of the Exchange Act
may restrict the ability of any person engaged in the distribution of the shares
of common  stock to engage  in  market-making  activities  with  respect  to the
particular  shares of common stock being  distributed for a period of up to five
business  days  prior  to the  commencement  of  such  distribution.  All of the
foregoing  may affect the  marketability  of the shares of common  stock and the
ability  of any  person or entity to  engage in  market-making  activities  with
respect to the shares of common stock.

         Rules 101 and 102 of Regulation M under the Exchange  Act,  among other
things,  generally prohibit certain  participants in a distribution from bidding
for or  purchasing  for an account  in which the  participant  has a  beneficial
interest,  any of the securities that are the subject of the distribution.  Rule
104 of Regulation M governs bids and purchases  made to stabilize the price of a
security in connection with a distribution of the security.

         Hedging  and  Other  Certain  Transactions  with   Broker-Dealers.   In
connection with  distributions  of the shares of common stock or otherwise,  the
selling shareholders may enter into hedging transactions with broker-dealers. In
connection with such  transactions,  broker-dealers may engage in short sales of
the shares of common  stock  registered  hereunder  in the course of hedging the
positions they assume with selling  shareholders.  The selling  shareholders may
also sell shares of common stock short and  redeliver the shares of common stock
to close out such short positions.  The selling shareholders may also enter into
option or other transactions with  broker-dealers  which require the delivery to
the broker-dealer of the shares of common stock registered hereunder,  which the
broker-dealer  may resell or  otherwise  transfer  pursuant to this  prospectus.
Selling  shareholders  may also  loan or  pledge  the  shares  of  common  stock
registered  hereunder  to a  broker-dealer  and the  broker-dealer  may sell the
shares of common  stock so loaned or,  upon a  default,  the  broker-dealer  may
effect sales of the pledged shares of common stock pursuant to this prospectus.

         Expenses  Associated  With  Registration.  We  have  agreed  to pay the
expenses of  registering  the shares of common stock under the  Securities  Act,
including  registration  and  filing  fees,  printing  expenses,  administrative
expenses and certain legal and accounting fees. Each of the selling shareholders
will bear its pro rata  share of all  discounts,  commissions  or other  amounts
payable to underwriters, dealers or agents as well as fees and disbursements for
legal counsel retained by any such selling shareholder.

         Indemnification.  Under the terms of the  Agreement,  we have agreed to
indemnify each of the parties to the Agreement and certain other persons against
certain  liabilities  in  connection  with the  offering of the shares of common
stock, including liabilities arising under the Securities Act.

         Prospectus  Updates;  Suspension  of  this  Offering.  At  any  time  a
particular offer of the shares of common stock is made, a revised  prospectus or
prospectus  supplement,  if  required,  will  be  distributed.  Such  prospectus
supplement or post-effective amendment will be filed with the SEC to reflect the
disclosure of required  additional  information with respect to the distribution
of the  shares of common  stock.  Under  the  terms of the  Agreement,  upon the
occurrence  of any event  known to our  executive  officers as a result of which
this  prospectus  is  known by our  executive  officers  to  include  an  untrue
statement of a material  fact or omits to state a material  fact  required to be
stated therein or necessary to make the statements therein not misleading in the
light of the  circumstances  then existing,  the parties have each agreed not to
trade  shares of common  stock from the time the  selling  shareholder  receives
notice  from  Cellegy of such an event  until such party  receives a  prospectus
supplement or  amendment.  Upon the  occurrence  of such an event,  a prospectus
supplement or post-effective  amendment, if required, will be distributed to the
parties.

                       WHERE YOU CAN FIND MORE INFORMATION

         We are  subject to the  informational  requirements  of the  Securities
Exchange  Act of 1934 and, in  accordance  therewith,  we file reports and other
information with the Securities and Exchange Commission.  Reports,  registration
statements, proxy and information statements, and other information that we have
filed can be inspected and copied at the public reference facilities  maintained
by the SEC at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549, as well
as the regional offices of the SEC located at Citicorp Center,  500 West Madison
Street, Suite 1400, Chicago, Illinois 60661, and Seven World Trade Center, Suite
1300, New York, New York 10048.  You may obtain copies of such material from the
Public Reference Section of the SEC at 450 Fifth Street, N.W., Washington,  D.C.
20549 at rates  prescribed by the SEC. The public may obtain  information on the

                                       11
<PAGE>

operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The
SEC also  maintains  a World  Wide Web site  that  contains  reports,  proxy and
information statements,  and other information that is filed electronically with
the SEC. This Web site can be accessed at  http://www.sec.gov.  Our common stock
is listed on the Nasdaq  Stock Market and reports,  proxy  statements  and other
information  concerning  Cellegy may be inspected at the offices of the National
Association  of  Securities  Dealers,  Inc.,  9513 Key West  Avenue,  Rockville,
Maryland 20850.

         We  have  filed  with  the SEC a  registration  statement  on Form  S-3
(together  with  all  amendments  and  exhibits   thereto,   the   "Registration
Statement")  under the  Securities  Act with respect to the common stock offered
hereby. This prospectus does not contain all of the information set forth in the
Registration  Statement and its exhibits and  schedules,  certain parts of which
are omitted in accordance with the rules and regulations of the SEC. For further
information  with  respect  to us and our  common  stock,  please  refer  to the
Registration  Statement and its exhibits and schedules.  Statements contained in
this  prospectus  as to the contents of any  contract or other  document are not
necessarily  complete  and, in each  instance,  reference is made to the copy of
such  contract or document  filed as an exhibit to the  Registration  Statement.
Each such  statement is qualified in all respects by such  reference.  Copies of
the Registration Statement, including exhibits thereto, may be inspected without
charge at the SEC's  principal  office in  Washington,  D.C., and you may obtain
copies from this office upon payment of the fees prescribed by the SEC.

         We will furnish without charge to each person, including any beneficial
owner,  to whom a copy of this  prospectus  is  delivered,  upon  such  person's
written or oral request,  a copy of any and all of the information that has been
incorporated  by reference  into this  prospectus  (other than  exhibits to such
documents,  unless such  exhibits  are  specifically  incorporated  by reference
herein as well).  Requests  for such copies  should be  directed  to A.  Richard
Juelis, our Chief Financial Officer, at (650) 616-2200.

                       DOCUMENTS INCORPORATED BY REFERENCE

         The  following   documents   that  we  have  filed  with  the  SEC  are
incorporated by reference into this prospectus:

         (a)   the  Registration  Statement and the exhibits and schedules filed
               therewith;

         (b)   our annual report on Form 10-K for the fiscal year ended December
               31, 1999;

         (c)   all other reports filed pursuant to Section 13(a) or 15(d) of the
               Exchange  Act  since  December  31,  1999,  including:   (1)  our
               quarterly  reports  on Form 10-Q for the  fiscal  quarters  ended
               March 31, 2000,  June 30, 2000 and  September  30, 2000;  (2) our
               definitive  Proxy  Statement filed on April 12, 2000; and (3) our
               Report on Form 8-K filed on October 5, 2000; and

         (d)   all  other  information  that we file  with the SEC  pursuant  to
               Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent
               to the date of this  prospectus  and prior to the  termination of
               this offering.

         Any  statement  incorporated  herein  shall be deemed to be modified or
superseded for the purposes of this prospectus and the Registration Statement to
the extent that a statement  contained herein or in any other subsequently filed
document that is or is deemed to be incorporated by reference herein modifies or
supersedes  such statement.  Any such statement so modified or superseded  shall
not be deemed, except as so modified or superseded, to constitute a part of this
prospectus and the Registration Statement.

                                  LEGAL MATTERS

         The  validity  of the  issuance of the shares of common  stock  offered
hereby will be passed upon for us by Fenwick & West LLP, our counsel.

                                     EXPERTS

         Ernst & Young LLP,  independent  auditors,  have audited our  financial
statements  included  in our  Annual  Report  on Form  10-K for the  year  ended
December  31,  1999,  as set forth in their  report,  which is  incorporated  by
reference in this prospectus and elsewhere in the  registration  statement.  Our
financial  statements are incorporated by


                                       12
<PAGE>

reference in reliance on Ernst & Young LLP's report, given on their authority as
experts in accounting and auditing.



                                       13
<PAGE>

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






                          CELLEGY PHARMACEUTICALS, INC.







                        2,143,870 Shares of Common Stock









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

                                   PROSPECTUS

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




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

                                       14
<PAGE>

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

         The estimated  expenses to be paid by the Registrant in connection with
this offering are as follows:

NASDAQ Stock Market Fee                                          $  15,000.00
Securities and Exchange Commission registration fee                  4,417.00
Accounting fees and expenses                                         7,500.00
Legal fees and expenses                                             15,000.00
Miscellaneous                                                        5,000.00
                                                                 ------------
Total                                                            $  46,917.00
                                                                 ------------

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         The Registrant's  Amended and Restated  Articles of Incorporation  (the
"Restated  Articles") include a provision that eliminates the personal liability
of its directors to the Registrant and its shareholders for monetary damages for
breach of the directors'  fiduciary duties to the maximum extent permitted under
California law. This limitation has no effect on a director's  liability (i) for
acts or omissions that involve intentional  misconduct or a knowing and culpable
violation  of law,  (ii) for acts or  omissions  that a director  believes to be
contrary to the best  interests of the  Registrant or its  shareholders  or that
involve  the  absence of good faith on the part of the  director,  (iii) for any
transaction from which a director derived an improper personal benefit, (iv) for
acts or omissions that show a reckless  disregard for the director's duty to the
Registrant or its shareholders in circumstances in which the director was aware,
or should have been aware,  in the  ordinary  course of  performing a director's
duties, of a risk of a serious injury to the Registrant or its shareholders, (v)
for acts or omissions that constitute an unexcused  pattern of inattention  that
amounts  to an  abdication  of the  director's  duty  to the  Registrant  or its
shareholders,  (vi) under Section 310 of the California  Corporations  Code (the
"California Code") (concerning  contracts or transactions between the Registrant
and a director) or (vii) under Section 316 of the  California  Code  (concerning
directors'  liability  for  improper  dividends,  loans  and  guarantees).   The
provision  does not extend to acts or omissions of a director in his capacity as
an officer. Further, the provision has no effect on claims arising under federal
or state securities laws and will not affect the availability of injunctions and
other equitable  remedies  available to the  Registrant's  shareholders  for any
violation of a director's fiduciary duty to the Registrant or its shareholders.

         The Restated  Articles also include an authorization for the Registrant
to  indemnify  its agents (as  defined in Section 317 of the  California  Code),
through  bylaws  provisions,  by agreement or otherwise,  to the fullest  extent
permitted by law.  Pursuant to this latter  provision,  the Registrant's  Bylaws
provide  for  indemnification  of  the  Registrant's  directors,   officers  and
employees.  Indemnification may only be authorized by a majority of Registrant's
directors  or  shareholders  or by order of a court,  unless  the agent has been
successful on the merits. In addition,  the Registrant's policy is to enter into
indemnification  agreements  with  each of its  officers  and  directors.  These
indemnification   agreements   provide  that  directors  and  officers  will  be
indemnified  and held  harmless to the fullest  extent  permitted by law.  These
agreements,  together with the Restated  Articles,  may require the  Registrant,
among other things, to indemnify such directors,  officers and employees against
certain  liabilities  that may  arise by reason of their  status or  service  as
directors or officers (other than liabilities  resulting from willful misconduct
of a  culpable  nature),  to  advance  expenses  to them as they  are  incurred,
provided  that they  undertake to repay the amount  advanced if it is ultimately
determined  by a court that they are not  entitled  to  indemnification,  and to
obtain directors' and officers' insurance if available on reasonable terms.

         Section  317  of  the   California   Code  makes   provisions  for  the
indemnification  of  officers,  directors  and other  corporate  agents in terms
sufficiently broad to indemnify such persons, under certain  circumstances,  for
liabilities  (including  reimbursement of expenses  incurred)  arising under the
Securities Act.

         The  Underwriting  Agreement  referred  to  below  sets  forth  certain
provisions  with respect to the  indemnification  of the  Registrant and certain
directors,   officers,  and  controlling  persons  against  certain  losses  and
liabilities, including certain liabilities under the Securities Act.

         The Amended and Restated  Registration Rights Agreement dated April 10,
1992,  entered into by and among the Registrant and various  investors,  and the
Amended and Restated  Registration  Rights  Agreement  dated  February 10, 1995,
entered into by and among the Registrant and various investors provide for cross

                                       15
<PAGE>

indemnification of certain holders of Registrant's securities, and of Registrant
and its  officers  and  directors  for certain  liabilities  existing  under the
Securities Act and otherwise.

         The Registrant also maintains a director and officer liability policy.

ITEM 16.  EXHIBITS.

The following exhibits are filed herewith or incorporated by reference herein:

  4.1  Common Stock Purchase Agreement dated as of October 2, 2000.

  4.2  Common Stock Purchase Warrant dated as of March 21, 2000.

  4.3  Common Stock Purchase Warrant dated as of March 21, 2000.

  4.4  Common Stock Purchase Agreement dated as of June 13, 2000.

  4.5  Common Stock Purchase Warrant dated as of April 14, 2000.

  4.6  Common Stock Purchase Warrant dated as of February 25, 2000.

  5.1  Opinion of Counsel regarding the legality of common stock.

23.1   Independent Auditors' Consent.

23.2   Consent of Counsel (included in Exhibit 5.1).

24.1   Power of Attorney (see page II-18).

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

ITEM 17.  UNDERTAKINGS.

         Insofar as indemnification for liabilities arising under the Securities
Act may be  permitted to  directors,  officers  and  controlling  persons of the
Registrant  pursuant  to the  provisions  described  under  Item  15  above,  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 Securities Act and is, therefore,  unenforceable.  In the event
that a claim  for  indemnification  against  such  liabilities  (other  than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling  person of the Registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the securities being registered,  the Registrant will, unless
in the  opinion  of its  counsel  the matter  has been  settled  by  controlling
precedent,  submit to a court of appropriate  jurisdiction  the question whether
such  indemnification  by it is  against  public  policy  as  expressed  in  the
Securities Act and will be governed by the final adjudication of such issue.

         The undersigned Registrant hereby undertakes:

         (1) To file, during any period in which offers or sales are being made,
a post-effective  amendment to this Registration  Statement:  (i) to include any
prospectus  required  by Section  10(a)(3)  of the  Securities  Act of 1933 (the
"Securities Act"); (ii) to reflect in the prospectus any facts or events arising
after the  effective  date of the  Registration  Statement  (or the most  recent
post-effective  amendment  thereof)  which,  individually  or in the  aggregate,
represent a fundamental change in the information in the Registration Statement;
and (iii) to  include  any  material  information  with  respect  to the plan of
distribution  not  previously  disclosed  in the  Registration  Statement or any
material change to such  information in the  Registration  Statement;  provided,
however,  that  (i) and  (ii) do not  apply if the  information  required  to be
included in a post-effective  amendment thereby is contained in periodic reports
filed  by  the  Registrant  pursuant  to  Section  13 or  Section  15(d)  of the
Securities  Exchange Act of 1934 (the "Exchange  Act") that are  incorporated by
reference in the Registration Statement.

         (2) That,  for the  purpose  of  determining  any  liability  under the
Securities Act, each such  post-effective  amendment 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.

                                       16
<PAGE>

         (3) To remove from registration by means of a post-effective  amendment
any of the securities being registered which remain unsold at the termination of
the offering.

         (4)  That,  for  purposes  of  determining   any  liability  under  the
Securities  Act,  each  filing of the  Registrant's  annual  report  pursuant to
Section  13(a) or Section  15(d) of the  Exchange  Act that is  incorporated  by
reference  in  this  Registration   Statement  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.


                                       17
<PAGE>


SIGNATURES

         Pursuant to the  requirements  of the  Securities  Act, the  Registrant
certifies  that it has  reasonable  grounds to believe that it meets all for the
requirements  for  filing  on Form S-3 and has  duly  caused  this  Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in the City of South San Francisco, State of California, on the  7th
day of November, 2000.

                                     CELLEGY PHARMACEUTICALS, INC.

                                     By:  /s/ K. Michael Forrest
                                       --------------------------
                                          K. Michael Forrest, Chairman and CEO

                                POWER OF ATTORNEY

KNOW ALL BY THESE PRESENTS that each individual  whose  signature  appears below
constitutes and appoints K. Michael  Forrest and A. Richard Juelis,  and each of
them, his  attorneys-in-fact,  and agents,  each with the power of substitution,
for him and in his name, place and stead, in any and all capacities, to sign any
and all amendments  (including  post-effective  amendments) to this Registration
Statement,  and to sign any registration statement for the same offering covered
by this  Registration  Statement that is to be effective upon filing pursuant to
Rule 462(b) promulgated under the Securities Act of 1933, and all post-effective
amendments  thereto,  and to file the same,  with all  exhibits  thereto and all
documents in connection therewith,  with the Securities and Exchange Commission,
granting unto said  attorneys-in-fact  and agents,  and each of them, full power
and  authority  to do and  perform  each and every act and thing  requisite  and
necessary  to be done in and about the  premises,  as fully to all  intents  and
purposes as he might or could do in person,  hereby ratifying and confirming all
that  said  attorneys-in-fact  and  agents  or any  of  them,  or  his or  their
substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act, this Registration  Statement
has been  signed by the  following  persons in the  capacities  and on the dates
indicated.
<TABLE>
<CAPTION>

                      Signature                                       Title                            Date
                      ---------                                       -----                            ----

<S>                                                     <C>                                  <C>
PRINCIPAL EXECUTIVE OFFICER:

 /s/ K.  Michael Forrest
------------------------
K. Michael Forrest                                     Chairman, Chief Executive Officer,    November 7, 2000
                                                       and Director

PRINCIPAL FINANCIAL AND
ACCOUNTING OFFICER:

 /s/ A. Richard Juelis
 ---------------------
A. Richard Juelis                                      Vice President, Finance,              November 7, 2000
                                                       Chief Financial Officer,
                                                       and Secretary


DIRECTORS:

 /s/ Carl R. Thornfeldt
 ----------------------
Carl R. Thornfeldt, M.D.                               Director                              November 7, 2000


 /s/ Jack L. Bowman
 ------------------
Jack L. Bowman                                         Director                              November 7, 2000


 /s/ Tobi B. Klar
 ----------------
Tobi B. Klar, M.D.                                     Director                              November 7, 2000

                                       18
<PAGE>


 /s/ Alan A. Steigrod
 --------------------
Alan A. Steigrod                                       Director                              November 7, 2000

/s/ Larry J. Wells
------------------
Larry J. Wells                                         Director                              November 7, 2000

/s/ Ronald J. Saldarini
-----------------------
Ronald J. Saldarini, Ph.D.                             Director                              November 7, 2000

 /s/ Felix J. Baker
 ------------------
Felix J. Baker, Ph.D.                                  Director                              November 7, 2000

</TABLE>


                                       19
<PAGE>


                                  EXHIBIT INDEX

Exhibit
Number                            Exhibit Title
------                            -------------

    4.1        Common Stock Purchase Agreement dated as of October 2, 2000
    4.2        Common Stock Purchase Warrant dated March 21, 2000
    4.3        Common Stock Purchase Warrant dated as of March 21, 2000
    4.4        Common Stock Purchase Agreement dated as of April 14, 2000
    4.5        Common Stock Purchase Warrant dated as of June 13, 2000
    4.6        Common Stock Purchase Warrant dated as of February 25, 2000
    5.1        Opinion of Counsel regarding the legality of common stock
   23.1        Independent Auditors' Consent
   23.2        Consent of Counsel (included in Exhibit 5.1)
   24.1        Power of Attorney (see page II-18)




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