As filed with the Securities and Exchange Commission on November 25, 1997

                                                      Registration No. 333-33569

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


                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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


                          PRE-EFFECTIVE AMENDMENT NO. 1

                                   ON FORM S-3

                            TO REGISTRATION STATEMENT

                                  ON FORM SB-2

                        UNDER THE SECURITIES ACT OF 1933



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



                           PALATIN TECHNOLOGIES, INC.
             (Exact name of registrant as specified in its charter)


            DELAWARE                                    95-4078884
(State or other jurisdiction of             (I.R.S. Employer Identification No.)
 incorporation or organization)


                         214 CARNEGIE CENTER, SUITE 100
                               PRINCETON, NJ 08540
                                 (609) 520-1911
(Address,  including zip code,  and telephone  number,  including  area code, of
     registrant's principal executive offices)


                                                          COPY TO:
EDWARD J. QUILTY, CHAIRMAN OF THE BOARD,           IRWIN M. ROSENTHAL, ESQ.
 PRESIDENT AND CHIEF EXECUTIVE OFFICER      RUBIN BAUM LEVIN CONSTANT & FRIEDMAN
    214 CARNEGIE CENTER, SUITE 100            30 ROCKEFELLER PLAZA, 29TH FLOOR
         PRINCETON, NJ 08540                        NEW YORK, NY 10112
            (609) 520-1911                            (212) 698-7700

 (Name, address, including zip code, 
 and telephone number, including area
     code, of agent for service)

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


APPROXIMATE  DATE OF COMMENCEMENT  OF PROPOSED SALE TO THE PUBLIC:  from time to
time, following the effective date of this registration statement.

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







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

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

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

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



                         CALCULATION OF REGISTRATION FEE

  Title of each
     class of                                 Proposed         Proposed maximum
 securities to be      Amount to be       maximum offering    aggregate offering      Amount of
    registered          registered       price per unit (1)       price (1)       registration fee

                                                                               
Common Stock            3,067,883 (2)         $7.53125          $23,104,993.84      $7,001.51 (2)

<FN>

(1)     Calculated  pursuant to Rule 457(c) under the Securities Act of 1933 and
        based on the  average  of the high and low  prices  of the  registrant's
        common stock reported on The Nasdaq SmallCap  Market(sm) on November 24,
        1997.

(2)     On September 5, 1997,  the Company  effected a 1-for-4  reverse split of
        the Common Stock.  Accordingly,  the  14,266,197  shares of Common Stock
        included in the  registration  statement filed on August 13, 1997 became
        3,566,549  shares  of  Common  Stock  effective  September  5,  1997.  A
        registration  fee  of  $7,565.41  relating  to the  registration  of the
        3,566,549  shares of Common  Stock (on a  post-reverse  split basis) was
        previously paid.
</FN>


THE REGISTRANT HEREBY AMENDS THIS  REGISTRATION  STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT  SHALL FILE
A FURTHER AMENDMENT WHICH SPECIFICALLY  STATES THAT THIS REGISTRATION  STATEMENT
SHALL  THEREAFTER  BECOME  EFFECTIVE  IN  ACCORDANCE  WITH  SECTION  8(A) OF THE
SECURITIES  ACT OF  1933  OR  UNTIL  THE  REGISTRATION  STATEMENT  SHALL  BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION,  ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.










                 Subject to Completion, dated November 25, 1997

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.

PROSPECTUS


                               [GRAPHIC OMITTED]


                           PALATIN TECHNOLOGIES, INC.

                        6,634,432 SHARES OF COMMON STOCK

     This Prospectus relates to the offering (the "Offering") of up to 6,634,432
shares (the "Registered  Shares") of the common stock,  $.01 par value per share
(the "Common Stock") of Palatin Technologies, Inc. (the "Company"), which may be
sold  from time to time by the  selling  stockholders  named in this  Prospectus
(each,  a "Selling  Stockholder,"  together,  the "Selling  Stockholders").  The
Registered  Shares  consist  of:  (i) up to  2,777,739  shares of  Common  Stock
issuable on conversion of 137,780  shares of the Company's  Series A Convertible
Preferred  Stock,  $.01 par value per share  ("Series  A  Convertible  Preferred
Stock");  (ii) up to 277,770  shares of Common Stock  issuable on  conversion of
13,778 shares of Series A Convertible  Preferred  Stock  issuable on exercise of
Preferred  Stock Placement  Warrants  issued to designees of Paramount  Capital,
Inc.  ("Paramount");  (iii) up to 3,055,509 shares of Common Stock issuable upon
adjustment in the conversion price of Series A Convertible  Preferred Stock (the
"Contingent Shares") (see "Description of Securities"); (iv) up to 69,122 shares
of Common  Stock  issuable on  exercise  of Class C Warrants;  (v) up to 177,788
shares of Common Stock issuable on exercise of Common Stock  Placement  Warrants
issued to  designees  of  Paramount;  (vi) up to 39,167  shares of Common  Stock
issuable on exercise  of Class B  Warrants;  (vii) up to 1,953  shares of Common
Stock issuable on exercise of Class B Placement  Warrants issued to designees of
Paramount;  (viii) up to 138,241  shares of Common  Stock  issued or issuable on
exercise  of Class A  Warrants,  of which  55,296  shares  of  Common  Stock are
outstanding  as of the date of this  Prospectus;  (ix) up to  20,733  shares  of
Common  Stock  issuable  on exercise  of Class A  Placement  Warrants  issued to
designees of Paramount; (x) 63,910 shares of Common Stock issued to the designee
of the Company's  largest creditor to pay accrued interest as of April 30, 1997;
and (xi) up to 12,500  shares of Common Stock  issuable on exercise of Financial
Services  Advisory  Agreement  Warrants  issued to a designee of Paramount.  The
resale of the Registered Shares is covered by this Prospectus.

     The Common Stock is traded on The Nasdaq  SmallCap  Market(sm) (the "Nasdaq
SmallCap"),  under the symbol "PLTN." No other security of the Company is listed
on any securities exchange or quoted in any over-the-counter market. On November
19, 1997, the last sale price of Common Stock as reported on the Nasdaq SmallCap
was $8.00.

     Selling  Stockholders  may,  without  notice  to  the  Company,   sell  the
Registered   Shares  from  time  to  time  directly  to  purchasers  or  through
underwriters,  brokers,  dealers  or agents,  on  securities  exchanges,  in the
over-the-counter market, and/or in privately negotiated transactions.  The price
of the Registered Shares to the public will,  therefore,  depend on the time and
nature  of each  sale.  Each  Selling  Stockholder  will  pay  all  underwriting
discounts  and  selling  commissions  applicable  to the  sale of  such  Selling
Stockholder's Registered Shares.  Underwriting discounts and selling commissions
will vary and may or may not apply to any given sale.  The Company  will receive
no proceeds from the sale of the  Registered  Shares.  The Company will bear all
expenses, estimated at $105,000,






incurred in connection with the registration of the Registered  Shares under the
Securities Act of 1933, as amended (the "Securities  Act") and  qualification or
exemption of the Registered  Shares under state securities laws,  excluding fees
of legal counsel for any Selling Stockholder. See "Use of Proceeds" and "Plan of
Distribution."



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




THE REGISTERED SHARES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK.  SEE "RISK
FACTORS" BEGINNING ON PAGE 5 OF THIS PROSPECTUS.



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




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.



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




                 THE DATE OF THIS PROSPECTUS IS _______ __, 1997





                    [INSIDE FRONT COVER PAGE OF PROSPECTUS ]
- --------------------------------------------------------------------------------


                              AVAILABLE INFORMATION

The  Company is  subject to the  informational  requirements  of the  Securities
Exchange Act of 1934, as amended (the "Exchange  Act"),  and  accordingly  files
reports, proxy statements and other information with the Securities and Exchange
Commission  (the  "Commission").  All such reports,  proxy  statements and other
information may be inspected and copied at the Public  Reference  Section of the
Commission, Room 1024, 450 Fifth Street, N.W., Washington D.C. 20549, and at its
Regional  Offices at Seven World Trade Center,  13th Floor,  New York, NY 10048,
and at Northwest Atrium Center, 500 West Madison Street, Suite 1400, Chicago, IL
60661-2511.  The Company is an electronic filer, and the Commission  maintains a
Web site on the Internet at http://www.sec.gov  that contains reports, proxy and
information  statements  and  other  information  regarding  issuers  that  file
electronically  with the  Commission.  The Common  Stock is listed on the Nasdaq
SmallCap,  and reports,  proxy statements and other  information  concerning the
Company may be inspected at the National Association of Securities Dealers, Inc.
at 1735 K Street, N.W., Washington D.C. 20006.

        This Prospectus  constitutes a part of a Registration  Statement on Form
S-3 filed by the Company with the Commission  under the Securities Act (together
with  all  amendments,   schedules  and  exhibits  thereto,   the  "Registration
Statement").  This Prospectus omits certain of the information  contained in the
Registration  Statement,  and  reference  is  hereby  made  to the  Registration
Statement  and related  exhibits  for further  information  with  respect to the
Company and the  securities  offered  hereby.  Any statements  contained  herein
concerning the provisions of any document 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 or otherwise  filed with the Commission.
Each such statement is qualified in its entirety by such reference.



                       DOCUMENTS INCORPORATED BY REFERENCE

        The following documents  previously filed with the Commission are hereby
incorporated by reference into this Prospectus:

        1.     The  Company's  Annual  Report on Form  10-KSB for the year ended
               June 30, 1997,  as filed with the  Commission  on  September  26,
               1997;

        2.     The  description of the Common Stock of the Company  contained in
               its  Registration  Statement  under the  Exchange Act on Form 8-A
               filed on October 22, 1993; and

        3.     The  Company's  Quarterly  Report  on Form  10-QSB  for the three
               months ended  September 30, 1997, as filed with the Commission on
               November 14, 1997.

        All  documents  subsequently  filed by the  Company  pursuant to Section
13(a),  13(c),  14 or 15(d) of the Exchange Act prior to the  termination of the
offering to which this Prospectus  relates shall be deemed to be incorporated by
reference into this  Prospectus and to be part of this  Prospectus from the date
of filing thereof.

        Any statement  contained in a document  incorporated by reference herein
shall be deemed to be modified or superseded for purposes of this Prospectus and
the Registration  Statement of which it is a part to the extent that a statement
contained  herein or in any other  subsequently  filed  document  which  also is
incorporated  herein  modifies or replaces  such  statement.  Any  statement  so
modified  or  superseded  shall  not be  deemed,  in  its  unmodified  form,  to
constitute a part of this Prospectus or such Registration Statement.

        The  Company  will  provide  without  charge  to each  person  to whom a
Prospectus is delivered,  upon written or oral request of such person, a copy of
any of the  information  that was  incorporated  by reference in this Prospectus
(not including  exhibits to the  information  that is  incorporated by reference
unless the exhibits are themselves specifically incorporated by reference).  The
address  and  telephone  number to  which such  request is  to be  directed are:
Stephen T. Wills,  Vice President,  Palatin  Technologies,  Inc.,  214  Carnegie
Center, Suite 100, Princeton, NJ 08540, telephone (609) 520-1911.






                                BUSINESS SUMMARY

        The  following  summary  should  be read  in  conjunction  with,  and is
qualified in its entirety by, the more  detailed  information,  including  "Risk
Factors,"  and  financial  statements  appearing  elsewhere or  incorporated  by
reference in this Prospectus.

        Certain  statements  in  this  Prospectus  constitute   "forward-looking
statements" within the meaning of the Private  Securities  Litigation Reform Act
of 1995.  Such  forward-looking  statements  involve  known and  unknown  risks,
uncertainties and other factors which may cause the actual results,  performance
or achievements of the Company, or industry results, to be materially  different
from any future results,  performance,  or achievements  expressed or implied by
such  forward-looking  statements.  Such  factors  include,  among  others,  the
following:  delays in product  development;  problems  or delays  with  clinical
trials;  failure to receive or delays in receiving regulatory approval;  lack of
enforceability of patents and proprietary rights; lack of reimbursement; general
economic  and  business   conditions;   industry   capacity;   industry  trends;
competition;  material costs and  availability;  changes in business strategy or
development plans; quality of management;  availability, terms and deployment of
capital; business abilities and judgment of personnel; availability of qualified
personnel;  changes in, or the failure to comply with,  government  regulations;
and other factors  referenced in this Prospectus.  When used in this Prospectus,
statements  that are not  statements  of  historical  fact may be  deemed  to be
forward-looking   statements.   Without   limiting  the  foregoing,   the  words
"anticipates,"   "plans,"  "intends,"  "expects"  and  similar  expressions  are
intended to identify such forward-looking statements.  Readers are cautioned not
to place undue reliance on these forward-looking statements, which speak only as
of the date of this Prospectus. The Company undertakes no obligation to publicly
release the result of any revisions to these forward-looking statements that may
be made to reflect events or  circumstances  after the date hereof or to reflect
the occurrence of unanticipated events.

THE COMPANY

        The Company is a development-stage  biopharmaceutical  company dedicated
to developing  and  commercializing  products and  technologies  for  diagnostic
imaging,   cancer  therapy  and  ethical  drug  development  utilizing  peptide,
monoclonal   antibody   and   radiopharmaceutical   technologies.   The  Company
concentrates its activities in two technology  areas,  each of which the Company
believes  may  be  used  to  develop  products  with  potential  diagnostic  and
therapeutic   applications.   These  technologies   involve  the  Company's  (i)
patent-pending Metal Ion-induced  Distinctive Array of Structures  ("MIDAS(TM)")
metallopeptide   technology   ("MIDAS   technology")   and  (ii)   patented  and
patent-pending direct radiolabeling technology.

        The Company  believes  that the MIDAS  technology  represents a platform
technology which may enable the design and synthesis of novel peptide analogs or
mimics.  Further, the Company believes that its MIDAS technology may provide the
Company with the flexibility to generate its own  pharmaceutical  products,  and
the  ability  to  target  and  complement   existing   product   portfolios  and
technological  bases of other  companies.  The Company  intends to seek to enter
into  collaborative  arrangements  to assist in development,  manufacturing  and
marketing of certain  proposed  products  utilizing  the MIDAS  technology.  The
Company has  entered  into a license  option  agreement  as to certain  proposed
products based on MIDAS technology.

        The Company is developing two proposed products incorporating its direct
radiolabeling technology, (i) LeuTech(TM), an infection and inflammation imaging
product,  and (ii) PT-5,  a  radiotherapeutic  peptide  somatostatin  analog for
cancer therapy. The Company is devoting substantial efforts and resources to the
development  of LeuTech,  which the Company  believes will be its first proposed
product to enter  Ccompany-sponsored  clinical trials.  The Company  anticipates
seeking one or more marketing partners for LeuTech prior to product approval.

        The  Company  is at an  early  stage  of  development  and  has  not yet
completed the  development of any products based on either its MIDAS  technology
or its direct radiolabeling technology.  Accordingly,  the Company has not begun
to market or generate revenues from the  commercialization of any such products.
It will be a number  of  years,  if ever,  before  the  Company  will  recognize
significant revenues from product sales or royalties. The Company's technologies
and products  under  development  will require  significant  time-consuming  and
costly research, development, pre-clinical studies, clinical testing, regulatory
approval and significant additional investment prior to their commercialization,
which may never occur. There can be no assurance that the Company's research and

                                                 1





development  programs  will be  successful,  that its products  will exhibit the
expected  biological results in humans, will prove to be safe and efficacious in
clinical  trials or will obtain the  required  regulatory  approvals or that the
Company or its  collaborators  will be successful in obtaining market acceptance
of any of the  Company's  products.  There can be no assurance  that the Company
will be  successful  in  entering  into  strategic  alliances  or  collaborative
arrangements  on  commercially  reasonable  terms,  if  at  all,  or  that  such
arrangements will be successful, or that the parties with which the Company will
establish  arrangements will perform their obligations under such  arrangements.
The Company or its collaborators  may encounter  problems and delays relating to
research and development,  regulatory approval, manufacturing and marketing. The
failure by the Company to address  successfully  such  problems and delays would
have a material adverse effect on the Company. In addition,  no assurance can be
given that  proprietary  rights of third  parties  will not preclude the Company
from  marketing  its  proposed  products or that third  parties  will not market
superior or equivalent products.

MIDAS TECHNOLOGY

        Role and  Function of Peptides.  Peptides,  short chains of amino acids,
play important  roles in regulating a variety of biological  functions.  Natural
peptides  function by  conforming  or bending to fit specific  molecules on cell
surfaces, called receptors,  thereby signaling the cell to initiate a biological
activity.  Some important  biological functions that are affected in this manner
include overall growth and behavior,  inflammatory  responses,  immune responses
and wound healing.

        In order to effectively regulate cell signaling,  a peptide must bind to
its target receptor with high affinity. The affinity of a peptide for its target
receptor is highly  dependent on its  three-dimensional  shape or  conformation.
Many  naturally  occurring  peptides  are  flexible  and can  take  on  multiple
conformations,  allowing  them to  interact  with  more  than  one  type of cell
receptor,  and to control multiple functions within the body. However, when such
peptides are used as drugs, this multiple reactivity is a disadvantage as it may
lead to side effects. The ability to construct high-affinity,  receptor-specific
peptides  offers a significant  opportunity to develop potent  receptor-specific
drugs.

        Introduction  to  MIDAS  Technology.   The  Company  believes  that  its
patent-pending  MIDAS  technology  can be used to rationally  design and produce
receptor-specific drugs. Using MIDAS, highly stable metallopeptide complexes are
formed,  in which the metal ion locks or constrains  the peptide into a specific
conformation. By designing MIDAS peptides to mimic the conformation required for
a specific receptor,  a stable,  receptor-specific  drug, with high affinity and
enhanced biological activity, can be made.  Radiopharmaceutical  products, which
may be diagnostic or therapeutic,  may be developed using radioactive metal ions
in MIDAS peptides.  Non-radioactive metal ions may be used in the development of
biopharmaceutical MIDAS peptides.

        The  Company is  engaged  in  research  and  development  on a number of
product  opportunities for its MIDAS  technology,  including use as a thrombosis
imaging agent,  an infection  imaging agent and an  immunostimulatory  agent. No
prediction can be made,  however, as to when or whether the areas in which there
are  ongoing  MIDAS   technology   research   projects  will  yield   scientific
discoveries, or whether such research projects will lead to commercial products

        Other  Potential  Opportunities.  The Company is  evaluating a number of
product  opportunities  for  its  MIDAS  technology,   and  believes  that  this
technology may have medical applications in a variety of areas, including immune
disorders,  cancers and  cardiology.  The Company intends to expand research and
development  of  MIDAS  technology   applications  primarily  through  strategic
alliances  with  other  entities.  No  assurances  can  be  made  regarding  the
establishment or the timing of such alliances, and the failure to establish such
alliances on a timely basis could limit the  Company's  ability to develop MIDAS
technology and could have a material adverse effect on the Company.  The Company
expects  to  devote  resources  to  expand  research  and  development  of MIDAS
technology to the extent funding is available.

        Option Agreement with Nihon.  The Company entered into a License  Option
Agreement (the "Option  Agreement") with Nihon  Medi-Physics Ltd.  ("Nihon"),  a
Japanese developer and manufacturer of  radiopharmaceutical  drugs, and received
an initial payment of $1,000,000 before Japanese  withholding taxes of $100,000.
Pursuant to the Option Agreement (i) Nihon has an option to exclusively  license
certain jointly developed

                                        2





radiopharmaceutical  diagnostic products based on the Company's MIDAS technology
and (ii) Nihon can  maintain  its option by making  certain  milestone  payments
based on  progress  in  product  development.  Nihon may  exercise  its right to
negotiate a license  agreement at any time upon notice and payment of additional
monies to the Company.  There can be no assurance that future payments  provided
for in the Option  Agreement will be made,  that the Company and Nihon will ever
enter  into a  definitive  license  agreement,  or that a  definitive  strategic
alliance  between  the  Company  and Nihon  will  result in the  development  or
commercialization  of any  product.  In the event that Nihon gives notice of its
right to negotiate a license agreement, and the parties cannot agree on terms of
such license agreement,  the Company may be required to repay $550,000 to Nihon.
Failure to enter into a definitive license agreement, or being required to repay
certain monies to Nihon, may have a material adverse effect on the Company.

DIRECT RADIOLABELING TECHNOLOGY

        The Company has developed and patented  radiolabeling  technologies  for
the  direct  radiolabeling  of  antibodies,  peptides  and other  proteins  with
diagnostic and therapeutic radioisotopes.

        LeuTech  Diagnostic  Imaging Product.  LeuTech, a proposed product under
development  that  utilizes  direct  radiolabeling  technology,  is a murine (or
mouse)  monoclonal  antibody-based  product  designed  to be  labeled  with  the
diagnostic  radioisotope  technetium-99m.   When  labeled  with  technetium-99m,
LeuTech is intended to be used for diagnosis of  infections,  occult  abscesses,
sites of inflammatory disease and other conditions involving high concentrations
of white blood cells.

        The Company believes that LeuTech can be used for the rapid diagnosis of
a variety of  difficult  to diagnose  infections  and occult  abscesses.  Occult
abscesses are hidden infections that are generally characterized as being highly
localized.  Examples  of typical  occult  abscesses  include  infections  of the
intra-abdominal  area,  such as  intestinal,  spleen,  liver  or  urinary  tract
abscesses,  as well as  bone,  prosthetic  and  other  abscesses.  In a  typical
abscess, as in most infections, large numbers of white blood cells congregate at
the site of the  infection.  Thus,  if the location of  concentrations  of white
blood cells is known,  the site of the infection is also known. It is crucial in
the  diagnosis  and  treatment  of occult  abscesses  that the  location  of the
infection be  determined,  as location  will  frequently  determine  the type of
therapy which is appropriate.

        The most specific  procedure  currently  available for nuclear  medicine
imaging  of sites of  infection  involves  removal  of blood  from the  patient,
isolating white blood cells from the patient's  blood,  radiolabeling  the white
blood  cells and  injecting  the  radiolabeled  white  blood cells back into the
patient.  The  radiolabeled  white blood cells then  localize at the site of the
infection, and can be detected using nuclear medicine diagnostic equipment. This
procedure is expensive,  involves risks to patients and  technicians  associated
with blood handling, is difficult to perform and generally takes at least twelve
hours.

        LeuTech has been  formulated  as a  lyophilized,  or  freeze-dried,  kit
containing  the modified  antibody and reagents  required for the  radiolabeling
process.  Prior  to  use,  LeuTech  will be  labeled  with  technetium-99m  by a
radiopharmacy  or  by a  hospital's  nuclear  medicine  department.  LeuTech  is
designed to bind, in the body, to white blood cells already  present at the site
of the infection or circulating in the blood stream. Therefore, LeuTech does not
require handling or processing of patient blood.

        Preliminary clinical trials have been conducted under an Investigational
New Drug  Application  ("IND")  submitted  to the  United  States  Food and Drug
Administration  ("FDA") and held in the name of an investigator,  using purified
antibody or kits  provided  by the  Company.  Forty  patient  studies  have been
completed at UCLA/Harbor Medical Center in Los Angeles,  with images obtained in
a variety of diseases,  including  acute and suspected  appendicitis,  pulmonary
infections and other abdominal  infections.  In seven cases satisfactory  images
were not  obtained,  due primarily to labeling or product  formulation  failures
with early kit formulations. In some cases, diagnostic images have been obtained
within five minutes of  administration  of LeuTech,  and in all cases in which a
definitive diagnosis could be made,  diagnostic images have been obtained within
90 minutes. An additional seventeen patient studies were completed in Germany at
the  University of Gottingen,  using kits  manufactured  by a third party to the
Company's specifications,  with images obtained in osteomyelitis and soft tissue
infections. The Company has

                                        3





filed an IND on  LeuTech  with the FDA in the  Company's  name,  but has not yet
initiated clinical trials under that IND.

        The  Company  has  entered  into an  exclusive  royalty-bearing  license
agreement with The Wistar Institute of Anatomy and Biology ("Wistar  Institute")
to use the antibody  and cell line used for LeuTech for a defined  field of use.
Failure to meet the  performance  criteria  for any reason or any other event of
default  under the  license  agreement  leading to  termination  of the  license
agreement  with Wistar  Institute  would have a material  adverse  effect on the
Company.  While the Company has negotiated a long-term  contractual  arrangement
for the manufacture of the purified antibody necessary for LeuTech, there can be
no  assurance  that such  contractor  will be able to  successfully  manufacture
purified  antibody for LeuTech on a sustained  basis,  that such contractor will
remain in the  contract  manufacturing  business  for the time  required  by the
Company,  or that  the  Company  will be able to  enter  into  such  contractual
arrangements as to other steps and components  required to manufacture  LeuTech.
To date,  the  Company  has only  manufactured  LeuTech in lots  preparatory  to
initiating  clinical  trial  use,  and has  not  determined  whether  commercial
quantities of LeuTech in conformity  with these standards can be manufactured on
a sustained  basis at an acceptable  cost. Such  manufacture  must be done under
good  manufacturing  practices  ("GMP")  requirements  prescribed by the FDA and
other agencies.  Certain steps in the manufacture of LeuTech, including contract
manufacture of purified  antibody,  vialing and  lyophilization,  have been done
under GMP.

        The Company has  initiated  clinical  trials with LeuTech under its IND,
and  intends  to  complete  Phase  III  clinical   trials  and  file  regulatory
applications to market with the FDA in the second half of 1998.  There can be no
assurance  that the Company's  LeuTech  development  program will be successful,
that the FDA will permit the Company's planned clinical trials to proceed,  that
LeuTech will prove to be safe and efficacious in clinical  trials,  that LeuTech
can be manufactured in commercially  required quantities on a sustained basis at
an acceptable price, that LeuTech will obtain the required regulatory  approvals
or that the Company or its collaborators  will be successful in obtaining market
acceptance of LeuTech.  The Company or its collaborators may encounter  problems
and  delays  relating  to  research  and   development,   regulatory   approval,
manufacturing and marketing of LeuTech.

        PT-5 Cancer Therapeutic Product. PT-5 is a rhenium-labeled  somatostatin
peptide analog being developed by the Company which is intended to treat cancers
by  regional  delivery  of  tumor  cell-targeted  radiotherapy.  PT-5  binds  to
somatostatin  receptors.  Somatostatin is a natural peptide hormone  involved in
the regulation of cell growth and  differentiation,  and somatostatin  receptors
are over-expressed on a wide variety of cancers. PT-5 is intended to target such
cancers and deliver a therapeutic  dose of  rhenium-188,  a  radioisotope  which
emits high energy beta radiation, to the cancer.

        The  Company  has  developed  a  reproducible,  easy  to use,  and  high
efficiency direct  radiolabeling  method for PT-5; developed a lyophilized final
product formulation; conducted biodistribution studies of PT-5 in normal animals
using several  different  routes of  administration,  including  intravenous and
intra-cavity  administration;  conducted  biodistribution  studies  of  PT-5  in
tumor-bearing  animals;  and demonstrated  that PT-5 has a specific  therapeutic
effect in animal models of three  different  human tumors -- lung,  prostate and
breast cancers.

        The Company  believes PT-5 may have  applications  for local or regional
administration to any  compartmentalized  cancer which is  somatostatin-receptor
positive.  The cancer must be  compartmentalized  in order for local or regional
administration  to work and must express  somatostatin  receptors in  reasonably
high levels in order to obtain the  targeting  benefits of PT-5.  Expression  of
somatostatin receptors varies by type of cancer.  However, until clinical trials
are completed,  specific  clinical utility and  applications,  if any, cannot be
determined.

        The Company is working with  researchers  at the  University  of Bonn in
Germany to initiate clinical trials of patients with bronchial cancer metastatic
to the pleural cavity.  PT-5 will be administered by infusion  directly into the
pleural  cavity.  This trial is  primarily  designed  to obtain  safety and dose
response data, and secondarily to obtain  evidence of efficacy,  including tumor
stasis or regression and improvement in cancer-associated biological markers.

        PT-5 requires a source of radioactive rhenium,  preferably  rhenium-188.
This  isotope can be  produced  by a variety of  methods,  including a generator
system; however, clinical grade radioactive rhenium is not currently

                                        4





available  in the  United  States.  The  Company  is  aware  of an  experimental
generator   system  developed  in  the  United  States  by  Oak  Ridge  National
Laboratory, and an additional experimental generator system available in Europe.
The Company does not intend to seek to  commercialize  any source of radioactive
rhenium,  but is aware of other companies  seeking to commercialize  radioactive
rhenium.  There can be no assurance  that,  regardless  of the status of product
development by the Company, any acceptable form of radioactive rhenium will ever
be commercially  available in the United States or other countries at acceptable
prices,  if at all,  in which  event the Company may never be able to develop or
commercialize PT-5.

        The Company is discussing entering into a collaborative arrangement with
a third party to use a specific  somatostatin  analog for PT-5, and both parties
are waiting to evaluate the results of preliminary clinical trials. There can be
no  assurance  that  the  Company  will  be  able to  conclude  a  collaborative
arrangement on acceptable  terms, if at all. If the Company cannot conclude such
arrangement, the Company will either abandon PT-5 development or seek to develop
a substitute using MIDAS technology.  There can be no assurance that the Company
will be able to enter into an arrangement with another party on acceptable terms
if at all, or will be able to develop a substitute  using MIDAS  technology in a
reasonable  period  of  time,  or at all.  There  can be no  assurance  that the
Company's PT-5  development  program will be successful,  that PT-5 will exhibit
the expected  biological results in humans,  that PT-5 will prove to be safe and
efficacious  in  clinical  trials,  that the Company  will  obtain the  required
regulatory  approvals for PT-5, or that the Company or its collaborators will be
successful  in  obtaining  market   acceptance  of  PT-5.  The  Company  or  its
collaborators  may  encounter  problems  and delays  relating  to  research  and
development, regulatory approval, manufacturing and marketing of PT-5.

EXECUTIVE OFFICES

        The  address of the  Company's  principal  executive  offices is Palatin
Technologies, Inc., 214 Carnegie Center, Suite 100, Princeton, NJ 08540, and the
telephone number is (609) 520-1911.



                                  RISK FACTORS

AN INVESTMENT IN THE REGISTERED SHARES IS HIGHLY SPECULATIVE IN NATURE, INVOLVES
A HIGH DEGREE OF RISK AND SHOULD NOT BE PURCHASED BY PERSONS WHO CANNOT AFFORD A
LOSS OF THEIR ENTIRE  INVESTMENT.  EACH  PROSPECTIVE  INVESTOR  SHOULD  CONSIDER
CAREFULLY THE RISKS  INHERENT IN AND AFFECTING  BOTH THE BUSINESS OF THE COMPANY
AND THE VALUE OF THE COMMON STOCK AND  SPECULATIVE  FACTORS  INCLUDING,  WITHOUT
LIMITATION,  THE FOLLOWING RISK FACTORS, AS WELL AS OTHER INFORMATION  CONTAINED
ELSEWHERE IN THIS PROSPECTUS BEFORE MAKING AN INVESTMENT DECISION.

        EARLY  STAGE  OF  DEVELOPMENT;   UNCERTAINTY  OF  PRODUCT   DEVELOPMENT;
TECHNOLOGICAL  UNCERTAINTY.  The Company is at an early stage of development and
has not yet completed the  development of any products based on either its MIDAS
technology or its direct radiolabeling technology.  Accordingly, the Company has
not begun to market or generate revenues from the  commercialization of any such
products.  It will be a number  of  years,  if ever,  before  the  Company  will
recognize  significant  revenues from product sales or royalties.  The Company's
technologies   and  products   under   development   will  require   significant
time-consuming and costly research,  development,  preclinical studies, clinical
testing,  regulatory  approval and significant  additional  investment  prior to
their  commercialization,  which may never occur. There can be no assurance that
the Company's  research and  development  programs will be successful,  that its
products  will  exhibit  the  expected  biological  results in humans,  that its
products  will prove to be safe and  efficacious,  that its products will obtain
the  required  regulatory  approvals,  demonstrate  substantial  therapeutic  or
diagnostic benefit, be commercialized on a timely basis, experience no design or
manufacturing  problems,  be  manufactured on a large scale, or be economical to
market, or that the Company or its collaborators will be successful in obtaining
market  acceptance  of any of the  Company's  products  or  generate  sufficient
revenue to support research and development programs.  There can be no assurance
that the Company will be  successful  in entering  into  strategic  alliances or
collaborative  arrangements  on commercially  reasonable  terms, if at all, that
such arrangements will be successful, or that the parties with which the Company
will  establish   arrangements   will  perform  their   obligations  under  such
arrangements. The Company or its collaborators may encounter problems and delays

                                        5





relating to research and development,  regulatory  approval,  manufacturing  and
marketing.  The failure by the Company to successfully address such problems and
delays  would have a material  adverse  effect on the Company.  In addition,  no
assurance  can be  given  that  proprietary  rights  of third  parties  will not
preclude the Company from marketing its proposed  products or that third parties
will not market superior or equivalent products.

        HISTORY OF OPERATING  LOSSES AND  ACCUMULATED  DEFICIT.  The Company has
incurred net operating losses since its inception  (January 28, 1986) and, as of
September 30, 1997, had an accumulated  deficit of approximately  $15.4 million,
which has increased to date. The Company anticipates incurring additional losses
over at least the next several years and such losses are expected to increase as
the Company  expands its research  and  development  activities  relating to its
MIDAS   technology  and  its  direct   radiolabeling   technology.   To  achieve
profitability,  the Company, alone or with others, must successfully develop its
technologies  and products,  conduct  preclinical  studies and clinical  trials,
obtain required regulatory approvals and successfully manufacture, introduce and
market such technologies and products.  The time required to reach profitability
is highly uncertain, and there can be no assurance that the Company will be able
to achieve profitability on a sustained basis, if at all.

        NEED FOR  ADDITIONAL  FINANCING  AND ACCESS TO CAPITAL.  The Company has
incurred negative cash flow from operations since its inception. The Company has
expended,  and will continue to expend in the future, if available,  substantial
funds to continue its research and development  programs,  including preclinical
studies and clinical  trials,  to seek regulatory  approval of its products,  to
develop manufacturing and marketing capabilities, and to fund the growth that is
expected to occur if any of its proposed  products  are approved for  marketing.
Further,  the Company  has  significant  long-term  debt that is due and payable
during the fiscal years ending June 30, 1998 and 1999. The Company  expects that
its existing capital  resources will be adequate to make scheduled debt payments
and to fund its  operations  through June 1998.  No assurance  can be given that
there will be no events  affecting the Company's  operations  that would deplete
available resources significantly before such time. The Company's future capital
requirements  depend  on  many  factors,  including  continued  progress  in its
research and  development  activities,  progress  with  preclinical  studies and
clinical  trials,  prosecuting and enforcing  patent claims,  technological  and
market developments, the ability of the Company to establish product development
arrangements,  the  cost  of  manufacturing  scale-up  and  effective  marketing
activities and  collaborative  or other  arrangements.  The Company will seek to
obtain additional funds through public or private  financings,  including equity
or debt financings,  collaborative or other arrangements with corporate partners
and others,  and from other sources.  No assurance can be given that  additional
financing  will be available when needed,  if at all, or on terms  acceptable to
the Company. If adequate additional funds are not available,  the Company may be
required  to  delay,  scale  back  or  eliminate  certain  of  its  research  or
development activities,  its manufacturing and marketing efforts, or require the
Company to license to third parties certain  products or  technologies  that the
Company would otherwise seek to commercialize  itself. If adequate funds are not
available, there will be a material and adverse effect on the Company.

        POTENTIAL  VOLATILITY OF PRICE; LOW TRADING VOLUME.  The market price of
the   Common   Stock,   like  that  of  many  other   development-stage   public
pharmaceutical or biotechnology  companies,  has been highly volatile and may be
so in the future. Factors such as announcements of technological  innovations or
new commercial products by the Company or its competitors, disclosure of results
of preclinical and clinical testing, adverse reactions to products, governmental
regulation and approvals,  developments in patent or other  proprietary  rights,
public or regulatory  agency concerns as to the safety of products  developed by
the Company,  litigation  and general  market  conditions may have a significant
adverse effect on the market price of the Common Stock. In addition, in general,
the Common  Stock has been  thinly  traded,  which may affect the ability of the
Company's  stockholders to sell shares of the Common Stock in the public market.
There can be no assurance  that a more active trading market will develop in the
future.  From  June 26,  1996  (the  business  day  following  the  merger  of a
newly-formed,  wholly-owned  subsidiary  of the  Company  with and  into  RhoMed
Incorporated, a New Mexico corporation ("RhoMed"),  pursuant to which all of the
outstanding  equity  securities of RhoMed were exchanged for Common Stock of the
Company (the  "Merger")) to November 19, 1997,  the  Company's  Common Stock has
traded at per share prices  between $55 and $5.  There can be no assurance  that
this high level of volatility will not persist in the future and that purchasers
of the  Registered  Shares will not be adversely  affected.  Further,  the stock
market has from time to time experienced extreme price and

                                        6





volume  fluctuations  that may be  unrelated  to the  operating  performance  of
particular  companies.  Such  fluctuations may adversely affect the price of the
Common Stock.

        PATENTS AND  PROPRIETARY  RIGHTS,  NO  ASSURANCE  OF  ENFORCEABILITY  OR
SIGNIFICANT COMPETITIVE ADVANTAGE. In general, the patent positions of companies
relying upon  biotechnology  are highly  uncertain and involve complex legal and
factual questions. To date, there has emerged no consistent policy regarding the
breadth of claims that are properly accorded to biotechnology patents. There can
be no assurance  that patents will issue from the patent  applications  filed by
the  Company or its  licensors  or that the scope of any  claims  granted in any
patent will provide meaningful proprietary protection or a competitive advantage
to the Company. There can be no assurance that the validity or enforceability of
patents  issued or licensed to the Company will not be  challenged by others or,
if challenged, will be upheld by a court. In addition, there can be no assurance
that  competitors  will not be able to circumvent any patents issued or licensed
to the Company.  In the United  States,  patent  applications  are maintained in
secrecy  until  they  issue as  patents,  and thus  publications  in the  patent
literature lag behind actual discoveries. Scientific publications also generally
appear  after a patent  application,  if any,  is filed.  As a result of delayed
publication, the Company cannot be certain that its scientists were the first to
make inventions covered by its patents and patent applications.

        In the event another party has also filed a patent application  relating
to an  invention  claimed in a Company  patent  application,  the Company may be
required to participate in an interference  proceeding adjudicated by the United
States  Patent and  Trademark  Office to determine  priority of  invention.  The
possibility  of  an   interference   proceeding   could  result  in  substantial
uncertainties  and  cost  for the  Company,  even  if the  eventual  outcome  is
favorable to the Company.  An adverse outcome could result in the Company losing
patent  protection for the subject of the  interference,  subject the Company to
significant  liabilities  to third  parties  and  require  the Company to obtain
license  rights from third  parties at  undetermined  cost or to cease using the
technology.

        While no valid  patent that would be infringed  by  manufacture,  use or
sale  of the  Company's  proposed  products  has  come to the  attention  of the
Company, the Company's proposed products are still in the development stage, and
neither  their  formulations  nor their  method  of  manufacture  is  finalized.
Moreover,  patents  the  claims of which  would be  infringed  by the  Company's
commercial activities may not have issued as yet. There can thus be no assurance
that the manufacture,  use or sale of the Company's  proposed  products will not
infringe  patent  rights  of  others.   The  Company  may  be  unable  to  avoid
infringement  of any such  patents  and may have to seek a  license,  defend  an
infringement  action, or challenge the validity of such patents in court.  There
can be no assurance that a license will be available to the Company,  if at all,
upon terms and  conditions  acceptable  to the Company or that the Company  will
prevail  in  any  patent  litigation.  Patent  litigation  is  costly  and  time
consuming,  and there can be no assurance that the Company will have  sufficient
resources  to pursue such  litigation.  If the Company does not obtain a license
under any such patents, is found liable for infringement, or is not able to have
them declared invalid,  the Company may be liable for significant money damages,
may  encounter  significant  delays in bringing  products  to market,  or may be
precluded  from  participating  in the  manufacture,  use or sale of products or
methods of treatment covered by such patents.

        The Company relies  substantially in its product development  activities
on certain  technologies  which are neither  patentable nor  proprietary and are
therefore potentially available to the Company's  competitors.  The Company also
relies on certain  proprietary  technologies  (trade secrets and know-how) which
are not  patentable.  Although  the  Company  has  taken  steps to  protect  its
unpatented   trade   secrets  and   know-how,   in  part   through  the  use  of
confidentiality  agreements  with its employees,  consultants and certain of its
contractors,  there  can be no  assurance  that  these  agreements  will  not be
breached,  that the Company would have adequate  remedies for any breach or that
the Company's trade secrets will not otherwise  become known or be independently
developed or discovered by competitors.  If the Company's employees,  scientific
consultants or collaborators develop inventions or processes  independently that
may be applicable to the Company's product candidates,  disputes may arise about
ownership  of  proprietary  rights  to  those  inventions  and  processes.  Such
inventions and processes will not necessarily become the Company's property, but
may remain the  property of those  persons or their  employers.  Protracted  and
costly

                                        7





litigation  could  be  necessary  to  enforce  and  determine  the  scope of the
Company's  proprietary  rights.  Failure to obtain or maintain  patent and trade
secret protection,  for any reason,  could have a material adverse effect on the
Company.

        Certain of the Company's  patents are directed to  inventions  developed
with  funds  from  United  States   government   agencies  or  within   academic
institutions from which the Company earlier acquired rights to such patents.  As
a result of these arrangements,  the United States government may have rights in
certain  inventions  developed during the course of the performance of federally
funded projects as required by law or agreements with the funding agency.

        Several bills affecting patent rights have been introduced in the United
States  Congress.  These bills address various aspects of patent law,  including
publication of pending  patent  applications,  modification  of the patent term,
re-examination, subject matter and enforceability. It is not certain whether any
of these bills will be enacted  into law and  whether,  as  enacted,  they would
affect  the  scope,  validity  and  enforceability  of  the  Company's  patents.
Accordingly,  the effect of  legislative  change on the  Company's  intellectual
property estate is uncertain.

        UNCERTAINTY OF DEVELOPMENT OF MIDAS  TECHNOLOGY.  The Company is engaged
in research and development on a number of product  opportunities  for its MIDAS
technology,  including use as a thrombosis  imaging agent, an infection  imaging
agent and an  immunostimulatory  agent,  and believes that MIDAS  technology may
have medical  applications in a variety of areas,  including  immune  disorders,
cancers and  cardiology.  The Company intends to expand research and development
of MIDAS technology  applications  primarily  through  strategic  alliances with
other  entities.  No assurances can be made regarding the  establishment  or the
timing of such  alliances,  and the failure to  establish  such  alliances  on a
timely basis could limit the Company's  ability to develop MIDAS  technology and
could have a material  adverse  effect on the  Company.  The Company  expects to
devote  resources to expand research and development of MIDAS  technology to the
extent funding is available.  No prediction can be made,  however, as to when or
whether the areas in which there are ongoing MIDAS technology  research projects
will yield scientific  discoveries,  or whether such research projects will lead
to commercial products.

        While the  Company  has entered  into the Option  Agreement  with Nihon,
pursuant to which Nihon has an option to exclusively  license  certain  products
based on the Company's MIDAS  technology,  there can be no assurance that future
payments provided for in the Option Agreement will be made, that the Company and
Nihon will ever enter into a definitive license agreement,  or that a definitive
strategic  alliance between the Company and Nihon will result in the development
or commercialization of any product. In the event that Nihon gives notice of its
right to negotiate a license agreement, and the parties cannot agree on terms of
such license agreement,  the Company will be required to repay certain monies to
Nihon.  Failure to enter into a definitive license agreement,  or being required
to repay  certain  monies to Nihon,  may have a material  adverse  effect on the
Company.

        UNCERTAINTY OF  DEVELOPMENT OF LEUTECH.
  The Company has entered into an
exclusive  royalty-bearing license agreement with Wistar Institute for a defined
field of use for the  antibody  and cell line used for  LeuTech,  which  license
agreement contains certain performance criteria and benchmark payments.  Failure
to meet the  performance  criteria  for any reason or any other event of default
under the license  agreement  leading to  termination  of the exclusive  license
agreement  with Wistar  Institute  would have a material  adverse  effect on the
Company.  While the Company has negotiated a long-term  contractual  arrangement
for the manufacture of the purified antibody necessary for LeuTech, there can be
no  assurance  that such  contractor  will be able to  successfully  manufacture
purified  antibody for LeuTech on a sustained  basis,  that such contractor will
remain in the  contract  manufacturing  business  for the time  required  by the
Company,  or that  the  Company  will be able to  enter  into  such  contractual
arrangements as to other steps and components  required to manufacture  LeuTech.
Such manufacture  must be done under GMP requirements  prescribed by the FDA and
other governmental  agencies. To date, the Company has only manufactured LeuTech
in lots preparatory to initiating clinical trial use, with certain manufacturing
processes having been done under GMP, and has not determined  whether commercial
quantities of LeuTech in conformity  with these standards can be manufactured on
a sustained basis at an acceptable cost.

                                        8





        While the Company has filed an IND on LeuTech  with the FDA, and intends
to complete Phase III clinical trials and file regulatory applications to market
with the FDA in the  second  half of 1998,  there can be no  assurance  that the
Company's  LeuTech  development  program will be  successful,  that the FDA will
permit the Company's planned clinical trials to proceed, that LeuTech will prove
to be safe and efficacious in clinical trials,  that LeuTech can be manufactured
in commercially required quantities on a sustained basis at an acceptable price,
that LeuTech will obtain the required  regulatory  approvals or that the Company
or its  collaborators  will be  successful  in obtaining  market  acceptance  of
LeuTech.  The Company or its  collaborators  may  encounter  problems and delays
relating to research and development,  regulatory  approval,  manufacturing  and
marketing  of  LeuTech.  Failure to develop,  obtain  regulatory  approval  for,
manufacture  and market LeuTech on a timely basis would have a material  adverse
effect on the Company.

        UNCERTAINTY OF  DEVELOPMENT OF PT-5. The Company is discussing  entering
into  a  collaborative  arrangement  with  a  third  party  to  use  a  specific
somatostatin analog for PT-5. There can be no assurance that the Company will be
able to enter into a collaborative  arrangement on acceptable  terms, if at all.
If the Company cannot conclude such arrangement, the Company will either abandon
PT-5 development or seek to develop a substitute using MIDAS  technology.  There
can be no assurance  that the Company will be able to enter into an  arrangement
with another party on  acceptable  terms if at all, or will be able to develop a
substitute  using MIDAS  technology  in a reasonable  period of time, or at all.
There can be no assurance  that the Company's PT-5  development  program will be
successful,  that PT-5 will exhibit the expected  biological  results in humans,
that PT-5 will prove to be safe and  efficacious  in clinical  trials,  that the
Company  will obtain the required  regulatory  approvals  for PT-5,  or that the
Company or its  collaborators  will be successful in obtaining market acceptance
of PT-5.  The Company or its  collaborators  may  encounter  problems and delays
relating to research and development,  regulatory  approval,  manufacturing  and
marketing of PT-5.

        In addition,  PT-5 requires a source of radioactive rhenium,  preferably
rhenium-188.  This isotope can be produced by a variety of methods,  including a
generator system;  however,  clinical grade radioactive rhenium is not currently
available  in the  United  States.  The  Company  is  aware  of an  experimental
generator   system  developed  in  the  United  States  by  Oak  Ridge  National
Laboratory, and an additional experimental generator system available in Europe.
The Company does not intend to seek to  commercialize  any source of radioactive
rhenium,  but is aware of other companies  seeking to commercialize  radioactive
rhenium.  There can be no assurance  that,  regardless  of the status of product
development by the Company, any acceptable form of radioactive rhenium will ever
be commercially  available in the United States or other countries at acceptable
prices,  if at all,  in which  event the Company may never be able to develop or
commercialize PT-5.

        GOVERNMENT  REGULATION;  NO  ASSURANCE  OF PRODUCT  APPROVAL.  Research,
development,  testing, clinical trials, manufacture,  distribution,  advertising
and marketing,  including distribution and sale, of pharmaceutical  products are
subject to extensive regulation by governmental authorities in the United States
and other  countries.  Prior to marketing,  proposed  products  developed by the
Company must undergo an extensive  regulatory  approval  process required by the
FDA and by comparable agencies in other countries.  This process, which includes
preclinical  studies and clinical  trials of each proposed  product to establish
safety  and  effectiveness  and  confirmation  by the FDA that good  laboratory,
clinical  and  manufacturing   practices  were  maintained  during  testing  and
manufacturing,  can take many years,  requires the  expenditure  of  substantial
resources  and  gives  larger  companies  with  greater  financial  resources  a
competitive  advantage  over the Company.  To date,  no proposed  product  being
evaluated by the Company has been  submitted for approval or approved by the FDA
or any other regulatory  authority for marketing,  and there can be no assurance
that any such product  will ever be submitted or approved for  marketing or that
the Company will be able to obtain the labeling claims desired for its products.
The  Company is and will  continue to be  dependent  upon the  laboratories  and
medical  institutions  conducting its preclinical studies and clinical trials to
maintain both good  laboratory and good clinical  practices.  Data obtained from
preclinical  studies and clinical trials are subject to varying  interpretations
which  could  delay,  limit  or  prevent  FDA  regulatory  approval.  Delays  or
rejections may be encountered based upon changes in FDA policy for drug approval
during the period of development and FDA regulatory review.  Similar delays also
may be encountered in foreign countries.

                                        9





        There can be no assurance that FDA or other regulatory  approval for any
products  developed by the Company will be granted on a timely basis, if at all.
Delay  in  obtaining  or  failure  to  obtain  such  regulatory  approvals  will
materially adversely affect the introduction and marketing of any products which
may be developed by the Company as well as the Company's results of operations.

        When and if approvals are granted,  the Company,  the approved drug, the
manufacture of such drug and the  facilities in which such drug is  manufactured
are subject to ongoing  regulatory  review.  Subsequent  discovery of previously
unknown  problems may result in  restriction on a product's use or withdrawal of
the product from the market. Adverse government regulation that might arise from
future  legislative  or  administrative  action,  particularly  as it relates to
health care reform and product pricing, cannot be predicted.

        NO COMMERCIAL MANUFACTURING CAPABILITY OR EXPERIENCE.  To be successful,
the Company's  products must be manufactured in commercial  quantities under GMP
requirements  prescribed by the FDA and at acceptable costs. The Company has not
yet  manufactured  any  pharmaceutical  products in  commercial  quantities  and
currently does not have the facilities to manufacture any products in commercial
quantities  under  GMP.  In the event the  Company  determines  to  establish  a
manufacturing facility, it will require substantial additional funds, the hiring
and retention of significant  additional personnel and compliance with extensive
regulations  applicable  to such a facility.  The Company has no  experience  in
commercial pharmaceutical manufacturing,  and there can be no assurance that the
Company  will  be  able  to  establish  such a  facility  successfully  and,  if
established,  that  it  will  be able  to  manufacture  products  in  commercial
quantities for sale at competitive  prices. If the Company determines to rely on
collaborators,   licensees  or  contract   manufacturers   for  the   commercial
manufacture  of its  products,  the Company will be dependent on such  corporate
partners or other  entities for, and will have only limited  control  over,  the
commercial  manufacturing  of its  products.  While the Company has entered into
manufacturing  arrangements as to certain portions of the manufacture of LeuTech
under GMP, there can be no assurance that the contract manufacturer will perform
as agreed or will remain in the  contract  manufacturing  business  for the time
required by the  Company,  or that the  Company  will be able to enter into such
manufacturing  arrangements  as to  remaining  portions  of the  manufacture  of
LeuTech.  There can be no assurance  that the Company will be able to enter into
any  such  manufacturing  arrangements  as to its  other  proposed  products  on
acceptable terms, if at all.

        LIMITED CLINICAL TRIAL EXPERIENCE.  Before obtaining required regulatory
approvals for the  commercial  sale of its proposed  products,  the Company must
demonstrate  through clinical trials that such products are safe and efficacious
for use. The initiation and completion of clinical trials is dependent upon many
factors,  including FDA  acquiescence,  the  availability of qualified  clinical
investigators and access to suitable patient  populations.  Delays in initiating
and completing clinical trials may result in increased trial costs and delays in
FDA submissions,  which could have a material adverse effect on the Company.  To
date, the Company has very limited experience in conducting clinical trials. The
Company  will  either  need to rely on third  parties to design and  conduct any
required  clinical trials or expend  resources to hire  additional  personnel to
administer such clinical trials. There can be no assurance that the Company will
be able to find appropriate  third parties to design and conduct clinical trials
or that it will have the  resources  to hire  personnel to  administer  clinical
trials in-house.

        A number of companies in the biotechnology and pharmaceutical industries
have  suffered  significant  setbacks in  clinical  trials,  even after  showing
promising  results in earlier studies or trials.  There can be no assurance that
the Company will not encounter  problems in its clinical  trials that will cause
the Company to delay or suspend its clinical trials, that the clinical trials of
its  proposed  products  will  be  completed  at all,  that  such  testing  will
ultimately  demonstrate the safety or efficacy of such proposed products or that
any proposed products will receive regulatory  approval on a timely basis, if at
all. If any such problems occur, there would be a material adverse effect on the
Company.

        LIMITED MARKETING,  DISTRIBUTION OR SALES CAPABILITY AND EXPERIENCE. The
Company has limited experience in marketing pharmaceutical  products,  including
distribution and selling of pharmaceutical  products, and will have to develop a
sales force and/or rely on  collaborators  or licensees or on arrangements  with
others to provide for the  marketing,  distribution,  and sales of its  proposed
products. There can be no assurance that the Company will be able

                                       10





to establish marketing, distribution and sales capabilities or make arrangements
with third parties to perform such  activities on  acceptable  terms,  which may
result in the lack of control by the Company  over the  marketing,  distribution
and sales of its proposed products. In addition,  there can be no assurance that
the Company or any third party will be successful in marketing,  distributing or
selling any  products.  Furthermore,  the Company  will  compete with many other
companies that currently have extensive and well-funded marketing,  distribution
and sales operations.

        COMPETITION.  The biopharmaceutical and  radiopharmaceutical  industries
are highly competitive. In the biopharmaceutical industry, there are a number of
companies developing peptide-based drugs, including companies exploring a number
of different  approaches to making  conformationally-constrained  short peptides
for use as therapeutic  drugs. In the  radiopharmaceutical  industry,  there are
several  companies  devoted to development and  commercialization  of monoclonal
antibody-based  products and  peptide-based  products.  The Company is likely to
encounter  significant   competition  with  respect  to  its  proposed  products
currently under development. Many of the Company's competitors which are engaged
in  the   biopharmaceutical   field,   and  in  particular  the  development  of
peptide-based  products,  have substantially greater financial and technological
resources and marketing  capabilities than the Company,  and have  significantly
greater   experience  in  research  and  development.   Many  of  the  Company's
competitors  which  are  engaged  in  the  radiopharmaceutical   field,  and  in
particular the development of antibody- and peptide-based products, have greater
financial  and  technological  resources  and  marketing  capabilities  than the
Company, and have significantly  greater experience in research and development.
Accordingly,  the Company's  competitors may succeed in developing  products and
underlying  technologies  more  rapidly  than  the  Company,  and in  developing
products  that are more  effective  and useful and are less costly than any that
may be  developed  by the  Company,  and may  also be more  successful  than the
Company in  manufacturing  and marketing such products.  Academic  institutions,
hospitals,   governmental   agencies  and  other  public  and  private  research
organizations are also conducting research and seeking patent protection and may
develop competing products or technologies on their own or through collaborative
arrangements.

        The   Company  is  aware  of  at  least  one   company   developing   an
antibody-based product which may compete with LeuTech as to certain indications,
which product is marketed in certain European countries and for which regulatory
approval is pending in the United  States.  The Company is also aware of another
company  developing a peptide-based  product which may also compete with LeuTech
as to  certain  indications.  The  Company  is aware of a  number  of  companies
developing  technologies  relating to the use of peptides as drugs,  including a
variety of different  approaches  to making  conformationally-constrained  short
peptides.

        The Company is pursuing  areas of product  development in which there is
the potential for extensive technological innovation in relatively short periods
of time. Rapid technological  change or developments by others may result in the
Company's proposed products becoming obsolete or non-competitive.

        DEPENDENCE  ON  THIRD-PARTY  REIMBURSEMENT.   Successful  sales  of  the
Company's proposed products in the United States and other countries will depend
on the availability of adequate  reimbursement  from third-party  payors such as
governmental  entities,  managed care organizations and private insurance plans.
Reimbursement  by a  third-party  payor  may  depend  on a  number  of  factors,
including  the  payor's  determination  that  use  of  a  product  is  safe  and
efficacious,  neither  experimental nor  investigational,  medically  necessary,
appropriate  for the specific  patient and cost effective.  Since  reimbursement
approval is required from each payor  individually,  seeking such approvals is a
time-consuming   and  costly  process.   Third-party   payors   routinely  limit
reimbursement  coverage and in many instances are exerting  significant pressure
on medical  suppliers to lower their prices.  There is  significant  uncertainty
concerning  third-party  reimbursement for the use of any pharmaceutical product
incorporating  new  technology,  and  there  is no  assurance  that  third-party
reimbursement  will be available for the Company's  proposed  products,  or that
such reimbursement,  if obtained, will be adequate. Less than full reimbursement
by governmental and other  third-party  payors for the Company's  products would
adversely  affect the market  acceptance of these products and would also have a
material  adverse  effect on the  Company.  Further,  health care  reimbursement
systems vary from

                                       11





country to country, and there can be no assurance that third-party reimbursement
will be made  available  for the  Company's  proposed  products  under any other
reimbursement system.

        HEALTH CARE REFORM.  The health care industry is undergoing  fundamental
change in the United States as a result of economic,  political  and  regulatory
influences.  There exists a powerful trend toward managed care that is motivated
by a desire to reduce costs and prices of health care.  The Company  anticipates
that the  health  care  industry,  particularly  insurance  companies  and other
third-party  payors,  will  continue to promote  cost  containment  measures and
alternative  health care delivery systems,  and political debate of these issues
will most likely  continue.  The Company cannot  predict which specific  reforms
will be proposed or adopted by industry or government or the precise effect that
such  proposals or adoption  may have on the Company.  There can be no assurance
that health care reform  initiatives  will not have a material adverse effect on
the Company.

        CONDUCTING  BUSINESS ABROAD. To the extent the Company conducts business
outside the United  States,  it may do so through  licenses,  joint  ventures or
other contractual arrangements for the development,  manufacturing and marketing
of its proposed  products.  No  assurance  can be given that the Company will be
able to establish suitable  arrangements,  that the necessary foreign regulatory
approvals  for its  proposed  product  will be  obtained,  that  foreign  patent
coverage will be available or that the development and marketing of its proposed
products through such licenses, joint ventures or other contractual arrangements
will be  successful.  The Company might also have greater  difficulty  obtaining
proprietary  protection for its proposed  products and technologies  outside the
United  States  and  enforcing  its  rights  in  foreign  courts.   Furthermore,
international operations and sales may be limited or disrupted by the imposition
of  governmental  controls  regulation  of  medical  products,   export  license
requirements,  political  instability,  trade restrictions,  changes in tariffs,
exchange  rate   fluctuations   and   difficulties  in  managing   international
operations.

        RISK OF  LIABILITY;  ADEQUACY  OF  INSURANCE  COVERAGE;  RISK OF PRODUCT
RECALL.  The Company's  business may be affected by potential  product liability
risks which are inherent in the testing, manufacturing and marketing of proposed
pharmaceutical  products  to be  developed  by  the  Company.  There  can  be no
assurance  that  product  liability  claims  will not be  asserted  against  the
Company, its collaborators or licensees.  The use of proposed products developed
by the  Company in  clinical  trials and the  subsequent  sale of such  proposed
products is likely to cause the Company to bear all or a portion of those risks.
Such litigation claims could have a material adverse effect on the Company.  The
Company  has  liability  insurance  providing  up  to  $1,000,000  coverage  per
occurrence  and in the aggregate as to certain  clinical  trial risks,  and will
seek   to   obtain   additional   product   liability   insurance   before   the
commercialization  of its  products.  There can be no assurance,  however,  that
insurance  will be available to the Company on acceptable  terms,  if at all, or
that such  coverage  once  obtained  would be  adequate  to protect  the Company
against  future  claims or that a medical  malpractice  or other claim would not
materially  and  adversely  affect  the  Company.  Furthermore,  there can be no
assurance  that any  collaborators  or  licensees  of the Company  will agree to
indemnify the Company, be sufficiently insured or have a net worth sufficient to
satisfy any such product liability  claims. In addition,  products such as those
proposed  to be sold by the  Company  may be subject  to recall  for  unforeseen
reasons. Such a recall could have a material adverse effect on the Company.

        DEPENDENCE ON KEY MANAGEMENT AND QUALIFIED PERSONNEL; LIMITED PERSONNEL;
DEPENDENCE ON CONTRACTORS.  The Company is highly  dependent upon the efforts of
its  management.  The loss of the services of one or more members of  management
could impede the achievement of development  objectives.  Due to the specialized
scientific  nature  of the  Company's  business,  the  Company  is  also  highly
dependent  upon its  ability to  attract  and retain  qualified  scientific  and
technical personnel. There is intense competition for qualified personnel in the
areas of the Company's activities and there can be no assurance that the Company
can presently,  or will be able to continue to, attract and retain the qualified
personnel  necessary  for  the  development  of its  existing  business  and its
expansion into areas and activities requiring additional expertise. In addition,
the Company's  intended or possible  growth and expansion  into areas  requiring
additional  skill  and  expertise,  such  as  marketing,   including  sales  and
distribution,  will require the  addition of new  management  personnel  and the
development of additional expertise by existing

                                       12





management personnel. The loss of, or failure to recruit, scientific,  technical
and marketing and managerial  personnel could have a material  adverse effect on
the Company.

         The Company relies, in substantial part, and for the foreseeable future
will rely, on certain  independent  organizations,  advisors and  consultants to
provide certain services,  including substantially all aspects of manufacturing,
regulatory approval and clinical management.  There can be no assurance that the
services of independent organizations, advisors and consultants will continue to
be available  to the Company on a timely basis when needed,  or that the Company
could find  qualified  replacements.  The  Company's  advisors  and  consultants
generally  sign  agreements  that provide for  confidentiality  of the Company's
proprietary  information.  However,  there can be no assurance  that the Company
will be able to maintain the  confidentiality of the Company's  technology,  the
dissemination of which could have a material adverse effect on the Company.

        HAZARDOUS  MATERIALS;  COMPLIANCE WITH  ENVIRONMENTAL  REGULATIONS.  The
Company's  research and  development  involves the  controlled  use of hazardous
materials,  chemicals and various  radioactive  compounds.  Although the Company
believes that its safety procedures for handling and disposing of such materials
comply with the standards  prescribed by federal,  state and local  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 such liability  could exceed the
resources of the Company. The Company may incur substantial costs to comply with
environmental  regulations if the Company develops  manufacturing  capacity.  In
addition,  there can be no assurance that current or future  environmental laws,
rules,  regulations  or policies will not have a material  adverse effect on the
Company.

        SHARES ELIGIBLE FOR FUTURE SALE; EFFECT ON ABILITY TO RAISE CAPITAL.  Of
the 3,051,463 shares of Common Stock outstanding, 2,846,412 are freely tradable,
and are not subject to any  restrictions,  either under securities laws or under
lock-up or other agreements.  Additional Common Stock, including shares issuable
upon exercise of options and the outstanding  warrants,  may become eligible for
sale in the public market from time to time in the future.  Currently,  warrants
to purchase 720,837 shares of Common Stock or securities convertible into Common
Stock,  at prices  ranging  from $.22 to  $282.00  per  share,  with an  average
weighted  price of $6.80 per share,  are  outstanding,  and  options to purchase
838,124  shares of Common  Stock,  at prices  ranging  from $.20 to $360.00  per
share,  with an average weighted price of $8.00 per share, are outstanding.  The
total number of the Registered  Shares is 6,634,432  shares,  of which 3,055,509
are  Contingent  Shares.   Furthermore,   the  Company  may  file  one  or  more
registration statements on Form S-8 to register shares of Common Stock available
for issuance  under the  Company's  1996 Stock Option  Plan,  and certain  other
option  grants and options  assumed by the  Company in the  Merger.  Many of the
foregoing  options and  warrants  are likely to be  exercised at a time when the
Company  might be able to obtain  additional  equity  capital on more  favorable
terms.  While those  options and warrants are  outstanding,  they may  adversely
affect the terms on which the Company could obtain  capital.  The Company cannot
predict the effect,  if any, that market sales of Common Stock,  the exercise of
options or warrants, or the availability of such Common Stock for sale will have
on the market price prevailing from time to time.  Furthermore,  certain holders
of the  Company's  securities  have the right to cause the  Company to  register
their Common Stock under the Securities Act in the future, which could cause the
Company to incur  substantial  expense,  could affect the  Company's  ability to
raise capital and also  materially and adversely  affect the  prevailing  market
price of the Company's Common Stock.

        ANTI-TAKEOVER  CONSIDERATIONS.  The Company's  Restated  Certificate  of
Incorporation,  as amended (the "Certificate of  Incorporation"),  authorize the
issuance of up to 10,000,000 shares of preferred stock, par value $.01 per share
("Preferred  Stock"),  of which 264,000 are authorized for issuance as shares of
Series A Convertible  Preferred  Stock.  See  "Description of  Securities."  The
Company's Board of Directors has the authority,  without action by the Company's
stockholders,  to issue  shares of  preferred  stock,  and to fix the rights and
preferences of such  preferred  stock,  except as limited in the  Certificate of
Designation relating to the Series A Convertible  Preferred Stock.  Accordingly,
the Board of Directors is empowered,  without stockholder  approval,  to issue a
new series of preferred stock with dividend, liquidation,  conversion, voting or
other  rights which could  adversely  affect the voting power or other rights of
the holders of Common Stock. Such authority, together with certain provisions of
Delaware

                                       13





law and of the Company's  Certificate of Incorporation and bylaws,  may have the
effect of delaying,  deterring or preventing a change in control of the Company,
may discourage bids for the Company's  Common Stock at a premium over the market
price and may adversely affect the market price, and the voting and other rights
of the  holders,  of the  Common  Stock.  Although  the  Company  has no present
intention to issue any  additional  shares of its  preferred  stock,  other than
those already  authorized  for issuance  upon  exercise of the  Preferred  Stock
Placement Warrants, there can be no assurance that the Company will not do so in
the future.

       NO DIVIDENDS. The Company has not paid cash dividends on its Common Stock
since its inception and does not intend to pay any dividends on its Common Stock
in the  foreseeable  future.  The  Series A  Convertible  Preferred  Stock has a
dividend preference.

        EQUITY  DILUTION.  Purchasers of the Registered  Shares will  experience
immediate and substantial  dilution of their  investment with respect to the net
tangible book value per share of Common Stock.

        POTENTIAL  CONVERSION  PRICE  RESET OF  SERIES A  CONVERTIBLE  PREFERRED
STOCK.  In 1997,  the Company  consummated  an offering of units  consisting  of
shares of Series A Convertible  Preferred  Stock. The 137,780 shares of Series A
Convertible Preferred Stock sold in the offering, and the 13,778 shares issuable
upon exercise of the Preferred Stock Placement Warrants, are convertible, at the
option of the holders,  into shares of Common  Stock,  at a conversion  price of
$4.96  and  stated  value of $100 per share of  Series A  Convertible  Preferred
Stock.  The conversion price is subject to a reset upon the happening of certain
events.  Any  decrease  in the  conversion  price  applicable  to the  Series  A
Convertible Preferred Stock would result in the issuance of additional shares of
Common Stock,  including some or all of the Contingent  Shares, and would have a
dilutive  effect.  The  conversion  price is also  subject to  adjustment  under
certain circumstances. See "Description of Securities."

        CERTAIN  INTERLOCKING  RELATIONSHIPS;  POTENTIAL  CONFLICTS OF INTEREST.
Certain of the  directors  of the Company are officers or directors of Paramount
or of Paramount  Capital  Investments,  LLC ("Paramount  Capital  Investments").
Paramount  Capital  Investments  is a merchant  bank and  venture  capital  firm
specializing in biotechnology and  biopharmaceutical  companies.  In the regular
course of its business, Paramount Capital Investments identifies,  evaluates and
pursues  investment  opportunities  in biomedical and  pharmaceutical  products,
technologies and companies.  Generally, Delaware corporate law requires that any
transactions  between the Company  and any of its  affiliates  be on terms that,
when taken as a whole,  are  substantially  as favorable to the Company as those
then  reasonably  obtainable  from  a  person  who is  not  an  affiliate  in an
arms-length transaction. Nevertheless, neither Paramount Capital Investments nor
any other person is obligated  pursuant to any agreement or  understanding  with
the Company to make any  additional  products or  technologies  available to the
Company,  and there can be no  assurance,  and  purchasers  of the Common  Stock
should not expect,  that any biomedical or pharmaceutical  product or technology
identified by Paramount  Capital  Investments  or any other person in the future
will be made  available to the Company.  In addition,  certain of the  officers,
directors,  consultants  and advisors to the Company may from time to time serve
as officers,  directors,  consultants or advisors to other  biopharmaceutical or
biotechnology  companies.  There can be no assurance  that such other  companies
will not in the future have interests in conflict with those of the Company.

        CONTROL BY OFFICERS, DIRECTORS, AND EXISTING STOCKHOLDERS. The Company's
executive  officers,  directors,  five percent (5%)  stockholders and affiliated
entities  together hold  approximately  21.8% of the voting power based on stock
outstanding as of the date of this  Prospectus,  and hold options or warrants to
acquire a significant  additional  number of shares of Common Stock and Series A
Convertible  Preferred Stock. As a result, these stockholders,  acting together,
will be able to influence  significantly  most matters requiring approval by the
stockholders  of the  Company,  including  the  election  of  directors.  Such a
concentration  of  ownership  may have the effect of  delaying or  preventing  a
change in control of the Company,  including  transactions in which stockholders
might  otherwise  receive a premium for their  shares over then  current  market
prices. Such stockholders may influence corporate actions, including influencing
elections of directors and significant corporate events.

                                       14





        RISK  OF LOSS  IN  LAWSUIT.  The  Company  and one of its  subsidiaries,
Interfilm  Technologies,  Inc.,  are the  plaintiffs  in a lawsuit  against Sony
Corporation  of  America  and  certain  of  its   affiliates  and   subsidiaries
(collectively,  "Sony") for breach of contract  and breach of duty of good faith
and fair dealing (the "IT  Litigation").  In November  1996,  Sony  asserted two
counterclaims  in the IT  Litigation.  The  complaint and  counterclaims  relate
solely to the business  activities  of the Company  prior to the Merger.  The IT
Litigation is under the control of and at the expense of an unaffiliated limited
liability partnership (the "Partnership"),  and is solely for the benefit of the
Company's pre-Merger stockholders as of June 21, 1996. Based upon the opinion of
the Company's counsel of record in the IT Litigation,  the Company believes that
the counterclaims are without merit.  However,  the Company may be liable in the
event that a judgment is rendered against the Company on the counterclaims,  and
the  assets  of  the   Partnership   may  not  be  sufficient  to  provide  full
indemnification.



                                 USE OF PROCEEDS

        The  Company  will  not  receive  any  proceeds  from  the  sale  of the
Registered Shares.



                            DESCRIPTION OF SECURITIES

        The Company is authorized to issue 75,000,000 shares of Common Stock and
10,000,000 shares of Preferred Stock.

COMMON STOCK

        As of the date of this Prospectus,  there are 3,051,463 shares of Common
Stock outstanding, and a maximum of 4,297,017 shares of Common Stock issuable on
conversion or exercise of securities  convertible into or exercisable for Common
Stock,  and  3,055,509  Contingent  Shares  issuable on  conversion  of Series A
Convertible Preferred Stock assuming the maximum decrease, under certain assumed
circumstances,  from the current conversion price.  Holders of Common Stock have
one vote per share and have no preemption  rights.  Holders of Common Stock have
the right to participate  ratably in all distributions,  whether of dividends or
assets in liquidation, dissolution or winding up, subject to any superior rights
of holders of Preferred Stock outstanding at the time.

SERIES A CONVERTIBLE PREFERRED STOCK

        One series of 264,000  shares of Preferred  Stock has been  established,
the  Series  A  Convertible   Preferred  Stock,  of  which  137,780  shares  are
outstanding  and 13,778 shares are issuable upon exercise of the Preferred Stock
Placement Warrants.

        Optional Conversion.  Each share of Series A Convertible Preferred Stock
is  convertible  at any time,  at the option of the  holder,  into the number of
shares of Common  Stock  equal to $100  divided  by the  "Conversion  Price" (as
defined  in the  Certificate  of  Designations  for  the  Series  A  Convertible
Preferred Stock). The current Conversion Price is $4.96, so each share of Series
A Convertible  Preferred Stock is currently  convertible into approximately 20.2
shares of Common Stock (fractional shares will be cashed out on conversion,  and
do not vote). The Conversion Price is subject to adjustment as described below.

        Mandatory  Conversion.  Commencing  May 9, 1998, the Company may, at its
option,  cause the conversion of the Series A Convertible  Preferred  Stock,  in
whole or in part, on a pro rata basis,  into Common Stock at the conversion rate
in  effect at that  time,  if the  closing  bid  price of the  Common  Stock has
exceeded 200% of the then applicable  Conversion  Price for at least twenty (20)
trading days in any thirty (30) consecutive  trading day period ending three (3)
days prior to the date of conversion.

        Adjustments to the Conversion  Price. The Conversion Price is subject to
adjustment,  under  certain  circumstances,  upon the sale or issuance of Common
Stock for  consideration  per share less than either (i) the Conversion Price in
effect on the date of such sale or  issuance,  or (ii) the  market  price of the
Common Stock as of

                                       15





the date of such sale or  issuance.  The  Conversion  Price is also  subject  to
adjustment  upon the  occurrence  of a  merger,  reorganization,  consolidation,
reclassification, stock dividend or stock split which will result in an increase
or decrease in the number of shares of Common Stock outstanding.

        Conversion  Price  Reset  Event.  The  Conversion  Price is  subject  to
adjustment on May 9, 1998 (the "Reset Date") if the average closing bid price of
the Common  Stock for the  thirty  (30)  consecutive  trading  days  immediately
preceding  the Reset Date (the "Reset  Trading  Price") is less than 130% of the
then  applicable  Conversion  Price (a "Reset Event").  Upon a Reset Event,  the
Conversion  Price will be reduced  to  greater  of (i) the Reset  Trading  Price
divided by 1.3 or (ii) 50% of the  Conversion  Price in effect  before the Reset
Event. The 3,055,509 Contingent Shares included in the Registered Shares assumes
that the Conversion Price in effect before the Reset Event is $4.96 and that the
Reset Trading Price is less than $3.22.



                              SELLING STOCKHOLDERS

        This  Prospectus  offers  the  Registered  Shares  for resale by Selling
Stockholders  who have  acquired or will  acquire  Common Stock  issued:  (i) on
conversion at the current  Conversion  Price of Series A  Convertible  Preferred
Stock;  (ii)  on  conversion  at  the  current  Conversion  Price  of  Series  A
Convertible  Preferred  Stock acquired on exercise of Preferred  Stock Placement
Warrants,  which Preferred Stock Placement  Warrants were issued to designees of
Paramount,  are exercisable at $110 per share of Series A Convertible  Preferred
Stock on November  9, 1997 or, as to certain  designees,  February 9, 1998,  and
which expire November 9, 2002 and contain  cashless  exercise and  anti-dilution
provisions;  (iii) as  Contingent  Shares on  conversion of Series A Convertible
Preferred  Stock  in the  event  of a  Reset  Event  or  other  decrease  in the
Conversion  Price;  (iv) on  exercise  of Class C  Warrants  issued by RhoMed in
connection with the Merger,  exercisable at  approximately  $8.68 per share, and
which expire June 24, 2000 and contain call and anti-dilution provisions; (v) on
exercise of Common  Stock  Placement  Warrants  issued by RhoMed to designees of
Paramount,  exercisable at  approximately  $6.51 per share of Common Stock,  and
which  expire June 25,  2006 and contain  cashless  exercise  and  anti-dilution
provisions;  (vi)  on  exercise  of  Class  B  Warrants  issued   by  RhoMed  in
connection  with a private  offering,  exercisable  at  approximately  $2.71 per
share,  and which expire at various dates between  December 8, 2005 and February
15, 2006 and contain  call and  anti-dilution  provisions;  (vii) on exercise of
Class  B  Placement  Warrants  issued  by  RhoMed  to  designees  of  Paramount,
exercisable at approximately $6.51 per share, and which expire February 15, 2006
and contain cashless exercise and anti-dilution  provisions;  (viii) on exercise
of Class A  Warrants  issued by RhoMed in  connection  with a private  offering,
exercisable at approximately  $0.22 per share, and which expire at various dates
between  August  10,  2005 and  September  13,  2005 and  contain  anti-dilution
provisions;  (ix) on exercise of Class A Placement  Warrants issued by RhoMed to
designees of Paramount,  exercisable at approximately $0.22 per share, and which
expire  September  13,  2005 and contain  cashless  exercise  and  anti-dilution
provisions;  (x) by the Company to pay accrued interest;  or (xi) on exercise of
Financial   Services  Advisory  Agreement  Warrants  issued  to  a  designee  of
Paramount,  exercisable  at $9.00 and $8.75 per share,  and which  expire May 9,
2002 and contain cashless exercise,  redemption and anti-dilution provisions. As
of the date of this  Prospectus,  the Company has issued 55,296 shares of Common
Stock on exercise of Class A Warrants,  and has issued no shares of Common Stock
on  conversion of any Series A  Convertible  Preferred  Stock or exercise of any
Preferred  Stock Placement  Warrant,  Common Stock  Placement  Warrant,  Class C
Warrant,  Class B Warrant,  Class B Placement Warrant, Class A Placement Warrant
or Financial Services Advisory Agreement Warrant.

        Common  Stock  ownership  information  in the  following  table is based
solely upon (i)  information  furnished to the Company by Selling  Stockholders,
(ii) reports  furnished to the Company  pursuant to the rules of the  Commission
and (iii) as appears on the Company's stock ownership records.

        The following table sets forth as of the date of this Prospectus (i) the
name of each  Selling  Stockholder,  (ii) the  number of shares of Common  Stock
(including Common Stock issuable on conversion of Series A Convertible Preferred
Stock and on exercise of all warrants for  Registered  Shares) which each holder
owns or has the right to

                                       16





acquire before the Offering (excluding  Contingent Shares),  (iii) the number of
Contingent  Shares issuable upon a decrease in the Conversion  Price of Series A
Convertible  Preferred Stock (see "Description of Securities"),  (iv) the number
of shares of Common  Stock  included  in this  Registration  Statement,  (v) the
number of shares of Common  Stock  which  each  holder  will own  following  the
completion  of the  Offering and (vi) the  percentage  of shares of Common Stock
which each holder will own  following the  completion of the Offering  (assuming
the sale of all stock  offered  and no other  dispositions  or  acquisitions  of
Common Stock).  Except as noted, no Selling Stockholder has had, within the past
three  years,  any  position,  office or other  material  relationship  with the
Company  or any of the  Company's  predecessors  or  affiliates.  Due to lock-up
agreements,  not all of the  Common  Stock  listed  below  as being  offered  is
available for sale as of the date of this Prospectus.  See "Plan of Distribution
- -- Lock-Up Agreements."




                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
103336 Canada, Inc.                          6,048          6,048         6,048             0      *
Abeshouse, Mark (1)                          5,343          2,026         5,343             0      *
Adams, Leonard J.                           10,080         10,080        10,080             0      *
Advanced Diagnostic Center PA                2,016          2,016         2,016             0      *
   Profit Sharing Plan #1
Albanese, Sal & Lorraine                     7,056          7,056         7,056             0      *
Amore Perpetuo, Inc.                        10,080         10,080        10,080             0      *
Andrade Enterprises, LLC                    20,161         20,161        20,161             0      *
Andrade, Michael L. and Sherry R.            5,040          5,040         5,040             0      *
   Andrade, Co-TTees. of M&S
   Andrade Rev. Tr.
Angelsastro, Philip J.                       5,040          5,040         5,040             0      *
Appel, Marc                                  7,056          7,056         7,056             0      *
Aries Domestic Fund, L.P. (2)              190,394         77,620        97,205        93,189     1%
Aries Trust, The (2)                       410,301        144,152       177,567       232,734     4%
Aristizabal, Mario                          10,080         10,080        10,080             0      *
Armen Partners, L.P.                        19,728         15,120        19,728             0      *
Armen Partners Offshore Fund, Ltd.          35,282         35,282        35,282             0      *
Arneson, Harriet  E.                         5,040          5,040         5,040             0      *
Ashton, Billington (3)                         518              0           518             0      *
Austost Anstalt Schaan                      50,403         50,403        50,403             0      *
Bahl, Rajiv                                  5,040          5,040         5,040             0      *
Berlinger, Michael A.  & Martin,             5,040          5,040         5,040             0      *
   Geraldine F.
Bernstein, Lawrence                          2,016          2,016         2,016             0      *
Bioquest Venture Leasing Part. LP          106,768              0        63,910        42,858      *
(4)
Birbrower, Barry, P.C. Profit                5,040          5,040         5,040             0      *
   Sharing Trust
Blake, Simon A. & Nadine                     1,008          1,008         1,008             0      *



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

* indicates less than one percent


                                       17






                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
BlueStone Capital Partners L.P.              1,323          1,323         1,323             0      *
Boyle, Kevin E.                             10,080         10,080        10,080             0      *
Brapo Associates                             5,040          5,040         5,040             0      *
Bridgewater Partners, L.P.                  10,080         10,080        10,080             0      *
C.S.L. Associates, L.P.                     20,161         20,161        20,161             0      *
Cambrian Investments Limited                 5,040          5,040         5,040             0      *
   Partnership
Cass & Co. - Magnum Capital                 20,161         20,161        20,161             0      *
   Growth Fund
Cassidy, Thomas L., IRA Rollover            10,080         10,080        10,080             0      *
Chanin, Richard B., IRA f/b/o,              10,080         10,080        10,080             0      *
   DLJSC as custodian
Chasanoff, Ted, IRA, Cowen & Co.             5,040          5,040         5,040             0      *
   cust.
Childs, Richard L.                           2,520          2,520         2,520             0      *
Cinco De Mayo, Ltd. (5)                      4,608              0         4,608             0      *
Clarke, Kevin, Cowen & Co. Cust.             5,040          5,040         5,040             0      *
   for IRA
Cohen, Alice & Arthur                        5,040          5,040         5,040             0      *
Conrads, Robert J.                          10,080         10,080        10,080             0      *
Cox, Jr., Archibald                         40,322         40,322        40,322             0      *
Curran, John P.                              5,040          5,040         5,040             0      *
Darienzo, Ralph A. & Lillian M.              5,040          5,040         5,040             0      *
Darling, Michael and Mary                   10,080         10,080        10,080             0      *
Delaware Charter Guarantee & Trust           1,152              0         1,152             0      *
Company, TTEE FBO Jack Polak
Profit Sharing Plan
Dishal, Stephanie                            2,016          2,016         2,016             0      *
Domaco Venture Capital Fund                  6,192          5,040         6,192             0      *
Dulman, David                                5,040          5,040         5,040             0      *
Dworetzky, Norma                            10,080         10,080        10,080             0      *
Dworetzky, Edward                           10,080         10,080        10,080             0      *
Ecker, Warren S.                             5,040          5,040         5,040             0      *
Edelman, Joseph (3)                         12,020          3,220         6,491         5,529      *
EDJ Limited                                 20,161         20,161        20,161             0      *
Essex Woodlands Health Ventures,           302,419        302,419       302,419             0      *
   L.P. Fund III
Fabiani, Joseph A. and Theresa M.            3,456              0         3,456             0      *
   Fabiani, JTWROS


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

* indicates less than one percent



                                       18






                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
Fairway Technology Inc.                     10,080         10,080        10,080             0      *
Faisal Finance (Switzerland) S.A.           40,322         40,322        40,322             0      *
Farber, S. Edmond                            1,899          1,323         1,899             0      *
Farber, S. Edmond "S"                        5,040          5,040         5,040             0      *
Finke, Malcolm K., Trustee,                  3,456              0         3,456             0      *
Malcolm K. Finke Trust Dated 8-9-
89
Fischer, Lauren (3)                          1,167          1,167         1,167             0      *
Florin, Marc (3)                             4,112          4,112         4,112             0      *
Fishbane, Jordan                             1,728              0         1,728             0      *
Franzblau, William I. (6)                   12,672              0        12,672             0      *
Fricke, F. G.                                5,040          5,040         5,040             0      *
Fried, Jr., Albert                          80,645         80,645        80,645             0      *
Garfinkel, Shelley                          10,080         10,080        10,080             0      *
Gaynes, Davis & Barbara                      5,040          5,040         5,040             0      *
Gehring III, Francis                        10,080         10,080        10,080             0      *
Geiss, Dale M.                               5,040          5,040         5,040             0      *
Gerace, Anthony J.                           8,208          7,056         8,208             0      *
GHA Management                               2,304              0         2,304             0      *
Giamanco, Joseph                            10,080         10,080        10,080             0      *
Giant Trading Inc.                          20,161         20,161        20,161             0      *
Gold, Laura                                  5,040          5,040         5,040             0      *
Goldberg, Arthur                             3,024          3,024         3,024             0      *
Gomez, Ofelia Anton                          5,040          5,040         5,040             0      *
Gonzalez M., Roberto                         5,040          5,040         5,040             0      *
Goodman, Frank                               2,016          2,016         2,016             0      *
Gordon, Michael J.                           5,040          5,040         5,040             0      *
Gordon, Robert P.                           10,080         10,080        10,080             0      *
Gross, John & Francine                       5,040          5,040         5,040             0      *
Gross, Bernard (3)                           9,068          8,366         9,068             0      *
Grossman, Andrew P., IRA, Cowen              5,040          5,040         5,040             0      *
   & Co. cust.
Grossman Family Trust                        5,040          5,040         5,040             0      *
Harari, Chaya & Sherri                       5,040          5,040         5,040             0      *
Harrigan Family Trust                        5,040          5,040         5,040             0      *
Heely, Laurence S.                           2,016          2,016         2,016             0      *
Heiser, Thomas P. & Mary E.                  6,192          5,040         6,192             0      *
Heymann, Jerry                               5,040          5,040         5,040             0      *
Hickey, Joseph                               6,048          6,048         6,048             0      *
Hight, Joan                                  1,152              0         1,152             0      *



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

* indicates less than one percent


                                       19







                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
Hight, Norton F.                             5,040          5,040         5,040             0      *
Hight, Randall W.                            5,040          5,040         5,040             0      *
Hirschfield, Jack                            2,520          2,520         2,520             0      *
Hughes, Mary Jo                             15,120         15,120        15,120             0      *
J.F. Shea Co., Inc. as Nominee             100,806        100,806       100,806             0      *
   1997-5
J.M. Hull Associates, LP                    40,322         40,322        40,322             0      *
Jackson Hole Investment Acquisition          6,912              0         6,912             0      *
   L.P.
JDK Partners, LP                            20,161         20,161        20,161             0      *
Johnson, Christopher A. & Hilary L.          1,008          1,008         1,008             0      *
Joyce, Michael                               5,040          5,040         5,040             0      *
Kane, Patrick M.                            10,080         10,080        10,080             0      *
Kash, Peter (3)                             19,272          5,110        19,272             0      *
Kass, Amram,  P.C. Defined Benefit          20,621         20,161        20,621             0      *
   Pension Plan
Katzmann, Scott (3)                         40,560         24,407        40,560             0      *
Kelly, Edward Justin                        11,232         10,080        11,232             0      *
Kendall, Jr., Donald R.                      5,040          5,040         5,040             0      *
Kennedy, John R.                            10,080         10,080        10,080             0      *
Kessel, Daniel, M.D.                         3,456              0         3,456             0      *
Kessel, Lawrence J.                          3,456              0         3,456             0      *
Keys Foundation, Curacao,                   40,322         40,322        40,322             0      *
   Netherlands Antilles
Knox, John (3)                               3,849          2,981         3,499           350      *
Knox, James & Farideh                        4,032          4,032         4,032             0      *
Kohut, Richard                               5,040          5,040         5,040             0      *
Korniewicz, Frederick J.                     5,040          5,040         5,040             0      *
Korovin, M.D., Gwen S.                       5,040          5,040         5,040             0      *
Kotel, Ira L.                                4,032          4,032         4,032             0      *
Kratchman, Martin S. (3)                     2,167          2,167         2,167             0      *
Lamm, Steven, M.D., Retirement               5,040          5,040         5,040             0      *
Fund
Lanteri, Vincent J. and Susan E.             7,056          7,056         7,056             0      *
LaRosa, Joseph A.                            5,040          5,040         5,040             0      *
Laser Trading Ltd                            5,040          5,040         5,040             0      *
Laura Gold Galleries Ltd. Profit             5,040          5,040         5,040             0      *
   Sharing Trust
Lavin, James F.                              3,456              0         3,456             0      *
Lazar, Ronald, Cowen & Co. Cust.             5,040          5,040         5,040             0      *
   for IRA



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

* indicates less than one percent


                                       20






                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
Lazar, Ronald M. and Barbra A.                 576              0           576             0      *
   Lazar, JTWROS
Lazar, Ronald                                1,323          1,323         1,323             0      *
Leaf, Robert J.                             10,080         10,080        10,080             0      *
Lemer, Albert                                5,040          5,040         5,040             0      *
Lenchner, Gregory S., M.D.                   3,456              0         3,456             0      *
Lenz, Herman & Muriel Lenz, Co-              5,040          5,040         5,040             0      *
   Ttee, The Lenz Family Trust
Levine, Jeffrey (3)                         14,392         14,364        14,392             0      *
Levine, Jerry                                5,040          5,040         5,040             0      *
Lieberman, Henry N.                          5,040          5,040         5,040             0      *
Linton Lake, S.A.                            6,912              0         6,912             0      *
Lipman, Donna and Lawrence                   5,040          5,040         5,040             0      *
Lipton, Maria C.                             2,016          2,016         2,016             0      *
Livas, Alfredo                               5,645          5,645         5,645             0      *
Loeb, Jr., John L.                           5,040          5,040         5,040             0      *
Loeser, Dennis C & Van Genen                 5,040          5,040         5,040             0      *
   Beheer B.V.
Lowrie Management Ltd.                       5,040          5,040         5,040             0      *
Lydon, Jr., Harris R. L.                     5,040          5,040         5,040             0      *
Mancinelli, Gene T.                         20,161         20,161        20,161             0      *
Masada I Limited Partnership                10,080         10,080        10,080             0      *
MBS Investors                               15,120         15,120        15,120             0      *
McCurdy, Stephen B. and Catherine            5,040          5,040         5,040             0      *
   R.
McDermott, Stephen (1)                       3,562          3,074         3,562             0      *
McInerney, Tim (3)                          90,235         44,989        90,235             0      *
McManus, Kevin T.                            5,040          5,040         5,040             0      *
McNiff, John P.                             30,241         30,241        30,241             0      *
Metzger, William H.,  M.D. Inc.              5,040          5,040         5,040             0      *
   Retirement Plan
Millman, Paul M.                             5,040          5,040         5,040             0      *
Milstein, Albert                            21,313         20,161        21,313             0      *
Model, Wolfe F., IRA, Cowen & Co.            5,040          5,040         5,040             0      *
   custodian
Moonlight International Ltd                 30,241         30,241        30,241             0      *
Morgan, Alfred D.                            5,040          5,040         5,040             0      *
Moskowitz, Reed                              5,040          5,040         5,040             0      *
Moslow, Morton & Rusty                       2,016          2,016         2,016             0      *
Motschwiller, Donald and Amy                 5,040          5,040         5,040             0      *
Mullen, Michael A.                           5,040          5,040         5,040             0      *



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

* indicates less than one percent


                                       21







                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
Nagle, Arthur J.                             5,040          5,040         5,040             0      *
Natiello, Joseph A.                         20,161         20,161        20,161             0      *
Nebenzahl, Mechie                            6,048          6,048         6,048             0      *
Netter, Drew M.                              5,040          5,040         5,040             0      *
Omicron Investment Corporation              20,161         20,161        20,161             0      *
Osterweis, John S., Trustee for the          5,040          5,040         5,040             0      *
   Osterweis Revocable Trust
Ostrovsky, Steven N.                        10,080         10,080        10,080             0      *
Ostrovsky, Paul D. & Rebecca L.              2,520          2,520         2,520             0      *
P. A. W. Offshore Fund, Ltd.               100,806        100,806       100,806             0      *
Palmetto Partners, Ltd.                     40,322         40,322        40,322             0      *
Pashayan, Richard                            5,040          5,040         5,040             0      *
Perkins, Pat O., Ttee, Perkins Family        5,040          5,040         5,040             0      *
   Trust
Persky, Mr. & Mrs. Bill                      5,040          5,040         5,040             0      *
Pesonen, Mark D.                            10,080         10,080        10,080             0      *
Peterson, William & Catherine                5,040          5,040         5,040             0      *
Plancarte G.N., Carlos & Leonore P.         10,080         10,080        10,080             0      *
   De Marvan
Polak, Anthony G.                            2,475          1,323         2,475             0      *
Polak, Anthony G., "S"                       1,152              0         1,152             0      *
Polak, Anthony G., IRA Ret. Acct.,           5,040          5,040         5,040             0      *
   Cowen & Co. cust.
Polak, Frederick B. "S"                      5,040          5,040         5,040             0      *
Polak, Jack, Keogh Profit Sharing            5,040          5,040         5,040             0      *
   Plan
Pollak, Richard                              2,304              0         2,304             0      *
Pomper, Stuart & Ingrid                     20,161         20,161        20,161             0      *
Pomper, Stanley                             20,161         20,161        20,161             0      *
Pomper, Alexander                           40,322         40,322        40,322             0      *
Porter Partners, L.P.                       60,483         60,483        60,483             0      *
Prager, Tis                                 10,080         10,080        10,080             0      *
Ramirez, Elke R. De                          3,168          2,016         3,168             0      *
Re, Charles, Cowen & Co.                     5,040          5,040         5,040             0      *
   Custodian, Keogh Profit Sharing
   Plan
Rebecca 1969 Trust                          27,649              0        27,649             0      *
REDLIW Corp.                                13,824              0        13,824             0      *
Reinharz, Jehuda                             5,040          5,040         5,040             0      *
Richmond, Michael                            8,064          8,064         8,064             0      *



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

* indicates less than one percent


                                       22







                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
RL Capital Partners                         17,424         15,120        17,424             0      *
Rodriguez Perez, Raimundo &                 10,080         10,080        10,080             0      *
   Anelies H. Huter de R.
Roffer, Marion                              10,080         10,080        10,080             0      *
Rosenwald, Lindsay A. (7)                  148,734         82,240       148,734             0      *
Rothschild, Jonathan E.                     12,384         10,080        12,384             0      *
Rubin, Wayne L. (3)                         26,379         15,203        26,379             0      *
Rudick, Joseph (3)                           9,025          3,150         9,025             0      *
Rudolf, Richard G.                          10,080         10,080        10,080             0      *
Ruggeberg, Karl (3)                          7,426          7,403         7,426             0      *
Ruttenberg, David W.                         5,040          5,040         5,040             0      *
Ruyan, Jerry L.                              6,912              0         6,912             0      *
Saker, Wayne                                10,080         10,080        10,080             0      *
Salvi, Emilio S.                             5,040          5,040         5,040             0      *
Sanger Investments                           4,032          4,032         4,032             0      *
Schaeffer, Harold & Bess                     5,040          5,040         5,040             0      *
Schlotterbeck, Robert                        5,040          5,040         5,040             0      *
Schneider, Joel & Jane                       5,040          5,040         5,040             0      *
Schonzeit, Andrew W.                         3,456              0         3,456             0      *
Schottenfeld Associates                     10,080         10,080        10,080             0      *
Schwartz, Carl F.                            5,040          5,040         5,040             0      *
Serbin, Richard and Kathe Serbin,           34,562              0         2,304        32,258      *
   JTWROS
Shapiro, Robert & Sandra                     5,040          5,040         5,040             0      *
Sherrill, H. Virgil                         10,368              0        10,368             0      *
Siegel, Andrew J.                            5,040          5,040         5,040             0      *
Slovin, Bruce                                6,912              0         6,912             0      *
Smeriglio, Michael J. & Geraldine Z.         5,040          5,040         5,040             0      *
Smithson Ventures Money Purchase            10,080         10,080        10,080             0      *
   Pension Plan, DLJ custodian
T. Soep #2 Trust FBO Catharina               5,040          5,040         5,040             0      *
   Polak, Jack Polak, Trustee
Solano, Jr., James J.                        5,040          5,040         5,040             0      *
Solloway, William J.                         2,016          2,016         2,016             0      *
Solomon, Deborah (3)                         1,864          1,864         1,864             0      *
Solomon, Philip                              5,040          5,040         5,040             0      *
Spana, Carl A.  (8)                          5,040          5,040         5,040             0      *
Spint, Robert L., Trust UA DTD               5,040          5,040         5,040             0      *
   10/19/89, Robert L. Spint, Trustee
Stadtmauer, Rabbi Murray & Clare             5,040          5,040         5,040             0      *



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

* indicates less than one percent


                                       23






                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
Stern, Andrea                                5,040          5,040         5,040             0      *
Stevens-Knox & Associates, Inc.             25,345         20,161        25,345             0      *
Strassman, Joseph & Barbara                 70,564         70,564        70,564             0      *
Strassman, Richard                          11,088         11,088        11,088             0      *
Suan Investments                            13,824              0        13,824             0      *
Suppa, Enrico F.                             5,040          5,040         5,040             0      *
Sutel, Saul, Ind. Ret Acct., Cowen &         5,040          5,040         5,040             0      *
   Co. Cust.
Taub, Hindy                                  3,456              0         3,456             0      *
Teitelbaum, Menashe                          2,520          2,520         2,520             0      *
Teitelbaum, M.D., Myron M.                   5,040          5,040         5,040             0      *
Token House Trading Company                 20,161         20,161        20,161             0      *
   Limited
UFH Endowment Ltd.                          50,403         50,403        50,403             0      *
Umbach, Joseph A.                           10,080         10,080        10,080             0      *
Uram, Jack                                   5,040          5,040         5,040             0      *
Valori Associates, Inc.                      5,040          5,040         5,040             0      *
Vinson, Donald E. & Virginia V.,             5,040          5,040         5,040             0      *
   Trust
Vitan Group, L.L.C.                          5,040          5,040         5,040             0      *
Vitols, J.                                  10,080         10,080        10,080             0      *
Vivaldi, Ltd. (9)                           54,719              0        38,018        16,701      *
Walko, Mark & Sally Lynn                     5,040          5,040         5,040             0      *
Walko, Mark                                    691              0           691             0      *
Walner, David (3)                            4,901          4,901         4,901             0      *
Waring, Saul                                 5,040          5,040         5,040             0      *
Weinberg, Matthew F.                         5,040          5,040         5,040             0      *
Weiner, Arlene                               5,040          5,040         5,040             0      *
Weinstein, Marshall                          3,456              0         3,456             0      *
Weiss, Michael S. (10)                      40,038         15,526        27,113        12,925      *
Wertheimer, Samuel P. and Pamela             3,456              0         3,456             0      *
   B. Rosenthal, JTWROS
Whetten, Robert J.                          30,241         30,241        30,241             0      *
Wiencek, John R.                             4,032          4,032         4,032             0      *
Willett, William H.                         10,080         10,080        10,080             0      *
Williamson, Robert and Caroline             10,080         10,080        10,080             0      *
Winans, Tim                                  2,016          2,016         2,016             0      *
Wrubel, Michael J.                           5,040          5,040         5,040             0      *
Young, Jonathan M.                           2,304              0         2,304             0      *
Young, Jonathan M. & Lyudmila               10,080         10,080        10,080             0      *



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

* indicates less than one percent


                                       24






                                       SHARES OF
                                        COMMON                                     SHARES       PERCENT
                                         STOCK                                       OF           OF
                                       OWNED OR                                    COMMON       COMMON
                                       ISSUABLE                                     STOCK        STOCK
                                        BEFORE                     REGISTERED       OWNED        OWNED
                                       OFFERING                      SHARES          OR           OR
                                      (EXCLUDING     CONTINGENT    (EXCLUDING     ISSUABLE     ISSUABLE
                                      CONTINGENT       SHARES      CONTINGENT       AFTER        AFTER
    NAME OF SELLING STOCKHOLDER         SHARES)       ISSUABLE       SHARES)      OFFERING     OFFERING
- -----------------------------------  ------------  -------------  ------------  ------------  ----------
                                                                                 
Yud, Yoseph                                  1,152              0         1,152             0      *
Zapco Holdings, Inc. Deferred               20,161         20,161        20,161             0      *
   Compensation Plan Trust
Zuck, Alfred C.                              5,040          5,040         5,040             0      *
Zuck, Vilma B., Irrevocable Trust            5,040          5,040         5,040             0      *
   FBO Alfred Zuck & other persons,
   Randall Zuck & Paul Millman
   Ttees DTD 12/28/87
Zucker, Uzi                                  3,456              0         3,456             0      *



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

* indicates less than one percent

(1)    Formerly employed by and/or associated with Paramount.

(2)    Aries Domestic Fund, L.P. and The Aries Trust share voting and investment
       power as to their shares with Lindsay A.  Rosenwald,  M.D. and  Paramount
       Capital  Asset  Management,  Inc.  Dr.  Rosenwald  is  the  President  of
       Paramount  and  is  the  President,   Chairman  of  the  Board  and  sole
       shareholder  of Paramount  Capital Asset  Management,  Inc.,  the general
       partner of Aries  Domestic Fund,  L.P. and the investment  manager of The
       Aries Trust.  Paramount Capital Asset Management,  Inc. and Dr. Rosenwald
       disclaim beneficial  ownership of the shares held by Aries Domestic Fund,
       L.P. and The Aries Trust except to the extent of their pecuniary interest
       therein, if any.

(3)    Employees, salespersons or other affiliates of Paramount.

(4)    Bioquest  Venture  Leasing  Partnership  L.P. is the  designee of Aberlyn
       Holding Co., Inc., which is, with its affiliates,  the Company's  largest
       creditor.

(5)    Robert G. Rehme, President of Cinco De Mayo, Ltd., was a director of  the
       Company before the Merger.

(6)    William I. Franzblau was a director and chief executive  officer  of  the
       Company before the Merger.

(7)    Lindsay A. Rosenwald,  M.D. is the Chairman of the Board and President of
       Paramount  and  is  the  President,   Chairman  of  the  Board  and  sole
       shareholder of Paramount Capital Asset Management, Inc.

(8)    Carl A. Spana is the grandfather of Carl  Spana,  Ph.D.,  a director  and
       Executive Vice President of the Company.

(9)    Lawrence L. Kuppin, general partner  of  Vivaldi, Ltd., was a director of
       the Company before the Merger.

(10)   Michael S.  Weiss  is  a  director  of the  Company and a Senior Managing
       Director of Paramount.



                              PLAN OF DISTRIBUTION

       Selling Stockholders may, but are not required to, sell Registered Shares
from time to time  directly  to  purchasers  or through  underwriters,  brokers,
dealers or agents.  Selling Stockholders will pay any underwriting  discounts or
commissions applicable to the sale of the Registered Shares. Selling

                                       25





Stockholders  may  sell  Registered  Shares  on a  securities  exchange,  in the
over-the-counter  market,  in  privately  negotiated   transactions,   or  in  a
combination  of these  methods,  without  notice  to the  Company.  If a Selling
Stockholder   intends  to  sell  Registered   Shares  by  any  other  method  or
transaction,  the Selling Stockholder must give the Company notice at least five
business days in advance.  Selling  Stockholders  must sell Registered Shares in
accordance with the  Registration  Statement and must comply with the prospectus
delivery   requirements  of  the  Securities  Act.  Selling   Stockholders  must
discontinue disposition of Registered Shares during certain limited periods when
(i) the Company is required to  supplement  or amend this  Prospectus,  (ii) the
Company is engaging  in a primary  underwritten  offering,  or (iii) the Company
determines that  disclosure of material  undisclosed  information  required in a
prospectus  would  have  an  adverse  effect  on  the  Company  or is  otherwise
inadvisable.

        There can be no assurance that the Selling Stockholders will sell any or
all of the Registered Shares offered by them hereunder.

     The Registered  Shares which are issued on conversion of shares of Series A
Convertible  Preferred  Stock other than those  issued on exercise of  Preferred
Stock  Placement  Warrants  (the  "Lock-up  Shares")  are  subject to a partial,
diminishing lock-up agreement for up to nine (9) months after the effective date
of the Registration  Statement (the "Effective Date"). Without the prior written
consent of Paramount,  holders of Lock-up  Shares may not directly or indirectly
sell or  otherwise  dispose of the Lock-up  Shares  according  to the  following
schedule:  75% of Lock-up  Shares are subject to lock-up  until three (3) months
after the Effective Date; 50% of Lock-up Shares are subject to lock-up until six
(6)  months  after the  Effective  Date;  25% of Lock-up  Shares are  subject to
lock-up until nine (9) months after the Effective Date; and the remaining 25% of
the Lock-up Shares are not subject to any restriction.

     The Company has registered the Registered Shares (the "Registration") under
the  Securities  Act  on  behalf  of  the  Selling  Stockholders,   pursuant  to
registration   rights   contained  in  the  agreements  by  which  each  Selling
Stockholder  acquired  Registered  Shares  or  securities  convertible  into  or
exercisable  for  Registered  Shares.  The Company  will pay all expenses of the
Registration,  and of qualification or exemption of the Registered  Shares under
state securities laws, excluding fees of legal counsel for Selling Stockholders.
The  Company  is  obligated  to use its best  efforts  to keep the  Registration
effective  until  the  Selling  Stockholders  have  completed  the  distribution
described  in this  Prospectus.  Whether or not the  Selling  Stockholders  have
completed  the  described  distribution,  the  Company  may  cease  to keep  the
Registration effective with respect to a Selling Stockholder's Registered Shares
at any  time  when  such  Selling  Stockholder  may  sell  all of  such  Selling
Stockholder's  Registered  Shares  under Rule 144 under the  Securities  Act (or
other  exemption  from  the  registration  requirements  of the  Securities  Act
acceptable to the Company) in a three-month period.

     Selling Stockholders and any broker-dealers that participate in the sale of
the Registered Shares may be deemed to be  "underwriters"  within the meaning of
Section 2(11) of the Securities Act and any commission  received by them and any
profit on the resale of the  Registered  Shares as principal may be deemed to be
underwriting  discounts and  commissions  under the Securities  Act. The Company
will  inform  the  Selling  Stockholders  that  terms  and  arrangements  of any
underwritten  offering must be filed with the National Association of Securities
Dealers,  Inc.  ("NASD")  for its review  pursuant to Section 2710 of the NASD's
Corporate Financing Rules.

     The Company  has, as of the date of this  Prospectus,  informed the Selling
Stockholders that the  anti-manipulation  provisions of Regulation M promulgated
under the Exchange Act may apply to the sales of Registered  Shares. The Company
will also advise the Selling  Stockholders  of the  requirement  for delivery of
this Prospectus in connection with any sale of the Registered Shares.

     Certain  Selling  Stockholders  may from  time to time  purchase  shares of
Common  Stock  in the  open  market.  The  Company  has,  as of the date of this
Prospectus,  informed the Selling Stockholders that they should not commence any
distribution  of  the  Registered  Shares  unless  they  have  terminated  their
purchasing of, bidding for and attempting

                                       26





to induce  any  other  person to bid for or  purchase  Common  Stock in the open
market as provided in applicable securities regulations, including Regulation M.



                 INDEMNIFICATION FOR SECURITIES ACT LIABILITIES

     The Company has obtained a directors'  and  officers'  liability  insurance
policy which covers,  among other things,  certain liabilities arising under the
Securities Act.

     In the  agreements  pursuant  to  which  the  Company  has  registered  the
Registered Shares in the Registration Statement,  the Company has agreed, to the
extent  permitted  by law,  to  indemnify  each  Selling  Stockholder  (with the
exception of Bioquest  Venture  Leasing  Partnership  L.P.),  control persons of
Selling   Stockholders  and  underwriters  of  the  Registered   Shares  against
liabilities  arising out of untrue  statements or omissions of material facts in
the  Registration  Statement or this  Prospectus,  except to the extent that the
untrue  statement  or omission is based on written  information  provided by the
Selling  Stockholder  for  inclusion  in  the  Registration  Statement  or  this
Prospectus.  Each Selling  Stockholder  (with the exception of Bioquest  Venture
Leasing  Partnership  L.P.) has agreed to indemnify the Company,  its directors,
officers and control persons,  and underwriters of the Registered Shares against
liabilities  arising out of untrue  statements or omissions of material facts in
the Registration  Statement or this Prospectus,  but only to the extent that the
untrue  statement  or omission is based on written  information  provided by the
Selling  Stockholder  for  inclusion  in  the  Registration  Statement  or  this
Prospectus.

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



                                  LEGAL MATTERS

     Certain legal matters relating to the Registered Shares offered hereby will
be passed  upon for the  Company by Rubin Baum Levin  Constant &  Friedman,  New
York, New York,  counsel to the Company.  Members of Rubin Baum Levin Constant &
Friedman have been granted  options under the 1996 Stock Option Plan to purchase
an aggregate of 12,500 shares of Common Stock at an exercise  price of $8.00 per
share.  The options are  immediately  exercisable  and will expire on January 3,
2007.



                                     EXPERTS

     The  audited  financial  statements   incorporated  by  reference  in  this
registration  statement  have been audited by Arthur  Andersen LLP,  independent
public accountants,  as indicated in their report with respect thereto,  and are
included herein in reliance upon the authority of said firm as experts in giving
said reports.

                                       27





                       [OUTSIDE BACK COVER OF PROSPECTUS]
- --------------------------------------------------------------------------------



NO DEALER,  SALESMAN OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE  INFORMATION OR
TO MAKE ANY  REPRESENTATIONS NOT CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH
THE OFFER MADE BY THIS  PROSPECTUS  AND, IF GIVEN OR MADE,  SUCH  INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY
OR THE SELLING STOCKHOLDERS. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER OF ANY
SECURITIES OTHER THAN THOSE TO WHICH IT RELATES OR A SOLICITATION OF AN OFFER TO
BUY ANY OF THE SECURITIES  OFFERED HEREBY TO ANY PERSON IN ANY  JURISDICTION  IN
WHICH SUCH AN OFFER OR SOLICITATION  WOULD BE UNLAWFUL.  NEITHER THE DELIVERY OF
THIS  PROSPECTUS NOR ANY SALES MADE HEREUNDER  SHALL,  UNDER ANY  CIRCUMSTANCES,
CREATE ANY IMPLICATION  THAT THE INFORMATION  CONTAINED  HEREIN IS CORRECT AS OF
ANY TIME SUBSEQUENT TO THE DATE HEREOF.

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



                                TABLE OF CONTENTS

           Item                                                  Page Number

Available Information.........................................Inside Front Cover
Documents Incorporated By Reference...........................Inside Front Cover
Business Summary.......................................................1
Risk Factors...........................................................5
Use of Proceeds.......................................................15
Description of Securities.............................................15
Selling Stockholders..................................................16
Plan of Distribution..................................................25
Indemnification for Securities Act Liabilities........................27
Legal Matters.........................................................27
Experts...............................................................27
Table of Contents.............................................Outside Back Cover


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


                                    6,634,432
                                  COMMON STOCK


                               [GRAPHIC OMITTED]




                           PALATIN TECHNOLOGIES, INC.

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


                                   PROSPECTUS

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




                                       28





                 PART II. INFORMATION NOT REQUIRED IN PROSPECTUS



ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

           The Company will bear all expenses,  estimated at $105,000,  incurred
in  connection  with  the  registration  of  the  Registered  Shares  under  the
Securities Act and  qualification  or exemption of the  Registered  Shares under
state  securities  laws,  excluding  fees  of  legal  counsel  for  any  Selling
Stockholder.  Each Selling  Stockholder will pay all underwriting  discounts and
selling  commissions  applicable  to  the  sale  of  the  Selling  Stockholder's
Registered Shares.


SEC registration fees..............      $14,567
Blue Sky fees and expenses*........      $15,000
Costs of printing and engraving*...      $10,000
Legal fees and expenses*...........      $50,000
Accounting fees and expenses*......       $5,000
Miscellaneous*.....................      $10,433
                                         -------
 TOTAL.............................     $105,000
 *Estimated.



ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

           Section 145 of the Delaware  General  Corporation Law provides that a
corporation  may  indemnify any person who was or is a party or is threatened to
be  made a  party  to any  threatened,  pending  or  completed  action,  suit or
proceeding,  whether civil, criminal,  administrative or investigative by reason
of the fact  that he is or was a  director,  officer,  employee  or agent of the
corporation, or serving at the request of the corporation in similar capacities,
against expenses (including attorneys' fees), judgments, fines, and amounts paid
in settlement  actually and reasonably  incurred by him in connection  with such
action,  suit or  proceeding  if he  acted  in good  faith  and in a  manner  he
reasonably  believed  to be in or not  opposed  to  the  best  interests  of the
corporation,  and,  with respect to any criminal  action or  proceeding,  had no
reasonable  cause to believe his conduct was unlawful.  In the case of an action
or suit by or in the right of the corporation,  no indemnification shall be made
with  respect to any claim,  issue or matter as to which such person  shall have
been adjudged to be liable to the corporation unless and only to the extent that
the court having  jurisdiction  shall  determine  that such person is fairly and
reasonably entitled to indemnity.

           Article V, Section 3 of the Company's  Certificate  of  Incorporation
provides  that  to  the  fullest  extent   permitted  by  the  Delaware  General
Corporation  Law, no director of the Company shall be  personally  liable to the
Company or its  stockholders for monetary damages for breach of a fiduciary duty
as a director.

           Article VI of the Company's  Certificate  of  Incorporation  provides
that the Company shall make the  indemnification  permitted under Section 145 of
the Delaware  General  Corporation  Law, as summarized  above,  but only (unless
ordered  by a  court)  upon  a  determination  by a  majority  of  a  quorum  of
disinterested  directors,  by independent legal counsel in a written opinion, or
by the stockholders, that the indemnified person has met the applicable standard
of conduct.  Article VI further  provides that the Company may advance  expenses
for defending  actions,  suits or proceedings  upon such terms and conditions as
the Company's  Board of Directors  deems  appropriate,  and that the Company may
purchase insurance on behalf of indemnified persons whether or not the

                                   Part II - 1





Company  would have the power to indemnify  such persons  under  Section 145 the
Delaware General Corporation Law.

           The Company's Bylaws contain  substantially the same  indemnification
provisions as the Company's Certificate of Incorporation, summarized above.

           The Company's employment agreement with Edward J. Quilty requires the
Company to indemnify  and advance  expenses to Edward J. Quilty,  the  Company's
Chairman of the Board,  President and Chief  Executive  Officer,  to the fullest
extent permitted under Section 145 of the Delaware General Corporation Law.

           Each  of  the  agreements  pursuant  to  which  Selling  Stockholders
acquired  Registered  Shares from the  Company  provides  that the Company  will
indemnify each Selling Stockholder,  and each Selling Stockholder will indemnify
the Company,  and in some cases the  Company's  directors,  officers and control
persons,  against certain  liabilities which might arise from the Offering.  The
indemnifications  may cover  liabilities  arising under the Securities  Act. The
obligation of a Selling  Stockholder  to indemnify the Company or its affiliates
is (absent fraud) limited to liabilities based on written  information which the
Selling  Stockholder  provides to the Company for inclusion in the  Registration
Statement.

           The  Company  has  obtained  a  directors'  and  officers'  liability
insurance policy which covers,  among other things,  certain liabilities arising
under the Securities Act.



ITEM 16.  EXHIBITS.

                                    EXHIBITS

           The following exhibits are filed with this Registration Statement, or
incorporated by reference as noted:

           2.1    Agreement and Plan of Reorganization dated as of April 12, 
                  1996 by and between Interfilm, Inc., Interfilm Acquisition
                  Corp. and RhoMed Incorporated. (a)

           2.2    Waiver and Consent dated as of June 24, 1996, between 
                  Interfilm, Inc., Interfilm Acquisition Corp. and RhoMed
                  Incorporated. (b)

           4.1    Specimen Certificate for Common Stock. (c)

           4.2    Patent Assignment and License Agreement dated as of July 15, 
                  1993, between RhoMed Incorporated and Aberlyn Capital 
                  Management Limited Partnership. (b)

           4.3    Master Lease Agreement dated November 16, 1994, between 
                  RhoMed Incorporated and Aberlyn Capital Management Limited
                  Partnership. (b)

           4.4    Letter Agreement, dated as of April 28, 1995, between Aberlyn
                  Capital Management Limited Partnership and RhoMed
                  Incorporated. (b)

           4.5    Stock Purchase and Modification Agreement, dated as of 
                  June 24, 1996, between Aberlyn Capital Management Limited
                  Partnership, Aberlyn Holding Company, Inc. and RhoMed
                  Incorporated. (b)

           4.6    Specimen Certificate for Series A Convertible Preferred 
                  Stock. (d)

           5.1    Opinion of Rubin Baum Levin Constant & Friedman, counsel to
                  the Company, re: legality.*

           10.29  Form of Placement Agent Warrant for the Series A Convertible
                  Preferred Stock Offering.*

           10.30  Form of Financial Advisory Services Agreement Warrant.*

                                   Part II - 2





           23.1   Consent of Rubin Baum Levin Constant & Friedman.
                  (Included in Exhibit 5.1.)

           23.2   Consent of Arthur Andersen LLP.*

           24.1   Power of Attorney (included on the signature page hereof).

           27     Financial Data Schedule.  (e)



                                NOTES TO EXHIBITS

              *    Filed with this Registration Statement.

              (a)  Incorporated  by  reference  to Exhibit 2.1 of the  Company's
                   Form 8-K dated June 25, 1996,  filed with the  Commission  on
                   July 10, 1996.

              (b)  Incorporated by reference and previously  filed as an exhibit
                   to the  Company's  Form 10-KSB  Annual  Report for the period
                   ended June 30, 1996,  filed with the  Commission on September
                   27, 1996.

              (c)  Incorporated  by  Reference  to Exhibit 4.1 of the  Company's
                   Form 8-K dated July 19, 1996,  filed with the  Commission  on
                   August 9, 1996.

              (d)  Incorporated by reference  and previously filed as an exhibit
                   to the  Company's  Form   10-QSB/A  Amendment  No.  2 for the
                   quarter ended March 31,  1997,  filed with the  Commission on
                   July 17, 1997.

              (e)  Incorporated by reference and previously  filed as an exhibit
                   to the Company's Form 10-QSB Quarterly Report for the quarter
                   ended  September  30,  1997,  filed  with the  Commission  on
                   November 14, 1997.



ITEM 17.  UNDERTAKINGS.

     The Company will:

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

          (i)  Include any  prospectus  required  by  Section  10(a)(3)  of  the
Securities Act;

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

          (iii) Include any  additional or changed  material  information on the
plan of distribution.

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

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

                                   Part II - 3





                                           SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form S-3 and has  duly  caused  this  registration
statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in the City of Princeton, State of New Jersey, on November 25, 1997.


PALATIN TECHNOLOGIES, INC.


By:  /s/ Edward J. Quilty
     ---------------------------
     Edward J. Quilty
     Chairman of the Board, President
     and Chief Executive Officer



                                   Part II - 4





                                        POWER OF ATTORNEY

     We, the undersigned officers and directors of Palatin  Technologies,  Inc.,
severally  constitute  Edward J. Quilty and  Stephen T. Wills,  and each of them
singly,  our true and lawful attorneys with full power to them, and each of them
singly,  to sign for us and in our names in the capacities  indicated below, the
Registration  Statement on Form S-3 filed  herewith  and any and all  subsequent
amendments to said registration  statement,  and generally to do all such things
in our names and behalf in our  capacities  as officers and  directors to enable
Palatin Technologies, Inc. to comply with all requirements of the Securities and
Exchange Commission.

     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.



     SIGNATURE                                TITLES                                 DATE

                                                                          

     /s/ Edward J. Quilty
- --------------------------       Chairman of the Board, President and Chief       November 25, 1997
     Edward J. Quilty            Executive Officer (principal executive officer)


     /s/ Carl Spana
- -------------------------        Executive Vice President and Director            November 25, 1997
     Carl Spana


     /s/ Stephen T. Wills
- -------------------------        Vice President and Chief Financial Officer       November 25, 1997
     Stephen T. Wills            (principal financial and accounting officer)


     /s/ Michael S. Weiss
- -------------------------        Director                                         November 25, 1997
     Michael S. Weiss


     /s/ James T. O'Brien
 -------------------------       Director                                         November 25, 1997
     James T. O'Brien


     /s/ John K.A. Prendergast
 -------------------------       Director                                         November 25, 1997
     John K.A. Prendergast



                                   Part II - 5