SUNPHARM CORPORATION
S-3, 1997-11-24
PHARMACEUTICAL PREPARATIONS
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    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 21, 1997
                                                    REGISTRATION NO. 333-_______
================================================================================


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


                                    FORM S-3
             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                      ------------------------------------


                              SUNPHARM CORPORATION
             (Exact name of registrant as specified in its charter)

              DELAWARE                                 F593097048
    (State or other jurisdiction of                 (I.R.S. Employer
    incorporation or organization)               Identification Number)

                         4651 SALISBURY ROAD, SUITE 205
                           JACKSONVILLE, FLORIDA 32256
                                 (904) 296-3320
                   (Address, including zip code, and telephone
                  number, including area code, of registrant's
                          principal executive offices)

                                   STEFAN BORG
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                         4651 SALISBURY ROAD, SUITE 205
                           JACKSONVILLE, FLORIDA 32256
                                 (904) 296-3320
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)
                      ------------------------------------

                                   Copies to:
                             ANDREWS & KURTH L.L.P.
                        2170 BUCKTHORNE PLACE, SUITE 150
                           THE WOODLANDS, TEXAS 77380
                                 (713) 220-4801
                              ATTN: JEFFREY L. WADE
                      ------------------------------------

         APPROXIMATE  DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  From
time to time after the effective date of the 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

<TABLE>
<CAPTION>
====================================================================================================================================
  TITLE OF EACH CLASS OF         SHARES TO BE       PROPOSED MAXIMUM OFFERING         PROPOSED MAXIMUM        AMOUNT OF REGISTRATION
SECURITIES TO BE REGISTERED      REGISTERED(2)          PRICE PER SHARE(3)       AGGREGATE OFFERING PRICE(3)          FEE (3)
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                              <C>                        <C>                           <C>                         <C> 
Common Stock, par value                                     
$.001 per share.............     58,920(1)(2)               $5.57                         $328,185                    $100
====================================================================================================================================
</TABLE>

(1)  Consists of 56,920  shares that are  issuable  upon the exercise of certain
     options and 2,000  shares that are  issuable  upon the  exercise of certain
     warrants.
(2)  The Registrant  registered the offer and sale of 1,478,246 shares of Common
     Stock by certain Selling Stockholders pursuant to a Registration  Statement
     on Form S-3  (Registration  No.  333-33253),  in connection  with which the
     Registrant  paid a  registration  fee of $1,218.  Pursuant to Rule 429, the
     Prospectus included in this Registration Statement relates to the offer and
     sale of the  58,920  shares  of  Common  Stock  registered  hereby  and the
     1,439,996  shares of Common  Stock  registered  pursuant  to such  previous
     Registration  Statement  that  had not been  sold  pursuant  thereto  as of
     November 20,1997.
(3)  Pursuant to Rule 457(c),  the registration fee is calculated based upon the
     average of the high and low sale  prices for the Common  Stock  reported by
     the    Nasdaq     Small    Cap    Market    on    November     20,    1997.

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

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

PROSPECTUS

                              SUNPHARM CORPORATION


                               1,498,916 SHARES OF
                                  COMMON STOCK

         This Prospectus  relates to the offering of up to 1,498,916 shares (the
"Shares")  of common  stock,  par value  $.001 per  share  ("Common  Stock")  of
SunPharm  Corporation  ("SunPharm" or the "Company") by the selling stockholders
named herein (the "Selling Stockholders"). The Shares covered by this Prospectus
consist of (i) 816,010 shares of Common Stock that are issued and outstanding as
of the date of this  Prospectus,  (ii) 614,301  shares of Common Stock  issuable
upon the exercise of certain  outstanding  warrants,  and (iii) 68,605 shares of
Common Stock  issuable  upon the exercise of certain  outstanding  options.  The
Company  will not receive any of the  proceeds  from the sale of Common Stock by
the Selling  Stockholders other than the applicable  exercise price per share of
the such  warrants  and  options.  The  Company's  Common Stock is traded on The
Nasdaq Small Cap Market under the symbol  "SUNP." On November 20, 1997, the last
reported sales price of the Common Stock was $5.625 per share.

         All or part of the Shares may be  offered by the  Selling  Stockholders
from time to time for their own account in  transactions on The Nasdaq Small Cap
Market, in negotiated  transactions or otherwise, at market prices prevailing at
the time of sale,  at prices  related  to such  prevailing  market  prices or at
negotiated  prices.  The Selling  Stockholders  may effect such  transactions by
selling  the Shares to or through  broker-dealers  and such  broker-dealers  may
receive  compensation  in the form of discounts,  concessions or commission from
the  Selling  Stockholders  or  the  purchasers  of the  Shares  for  whom  such
broker-dealers may act as agent or to whom they sell as principal or both (which
compensation  to a  particular  broker-dealer  might be in excess  of  customary
commissions).

         None of the  proceeds  from  the  sale  of the  Shares  by the  Selling
Stockholders  will be  received by the  Company.  The Company has agreed to bear
certain  expenses in  connection  with the  registration  and sale of the Shares
being  offered by the  Selling  Stockholders,  and has agreed to  indemnify  the
Selling  Stockholders  against certain  liabilities  under the Securities Act of
1933,  as amended  (the  "Securities  Act").  The Selling  Stockholders  and any
broker-dealers  participating in the distribution of the Shares may be deemed to
be  "underwriters"  within the meaning of the Securities  Act, and any profit on
the sale of Shares by the Selling  Stockholders and any commissions  received by
any such  broker-dealer  may be deemed to be underwriting  commissions under the
Securities Act. See "Plan of Distribution."

         The  Shares  have  not  been   registered   for  sale  by  the  Selling
Stockholders  under  the  securities  laws of any  state  as of the date of this
Prospectus.  Brokers  or dealers  effecting  transactions  in the Shares  should
confirm  registration  thereof under the securities  laws of the states in which
such transactions occur, or the existence of any exemption from registration.

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


                        THESE ARE SPECULATIVE SECURITIES.
        THE SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK. SEE
                      "RISK FACTORS" COMMENCING ON PAGE 5.

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


  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 November 21, 1997

<PAGE>

                              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").  Such reports,  proxy
statements  and other  information  filed with the  Commission are available for
inspection  and copying at the public  reference  facilities  maintained  by the
Commission at Room 1024, Judiciary Plaza, 450 Fifth Street, N.W., Washington, DC
20549, and at the Commission's  Regional Offices located at Citicorp Center, 500
West Madison  Street,  Suite 1400,  Chicago,  Illinois  60661 and at Seven World
Trade Center, Suite 1300, New York, New York 10048. Copies of such documents may
also be  obtained  from  the  Public  Reference  Section  of the  Commission  at
Judiciary Plaza,  450 Fifth Street,  N.W.,  Washington,  DC 20549, at prescribed
rates.   The   Commission   maintains   a  site  on  the   World   Wide  Web  at
http://www.sec.gov that contains reports, proxy statements and other information
regarding registrants that file electronically with the Commission. In addition,
such materials and other information  concerning the Company can be inspected at
the National  Association  of Securities  Dealers,  Inc.,  1735 K Street,  N.W.,
Washington, DC 20006.

         The Company has filed with the Commission a registration statement (the
"Registration  Statement")  under the  Securities  Act of 1933,  as amended (the
"Securities  Act"),  on Form S-3 with respect to the securities  offered hereby.
This  Prospectus  does  not  contain  all of the  information  set  forth in the
Registration  Statement  and the exhibits  thereto,  certain  parts of which are
omitted  in  accordance  with  the  rules  and  regulations  of the  Commission.
Statements made in this Prospectus as to the contents of any contract, agreement
or other document referred to are not necessarily complete. With respect to each
such  contract,  agreement  or  other  document  filed  as  an  exhibit  to  the
Registration  Statement,  reference  is made to the exhibit for a more  complete
description  of  the  matter  involved.   The  Registration  Statement  and  any
amendments  thereto,  including exhibits filed or incorporated by reference as a
part  thereof,  are  available for  inspection  and copying at the  Commission's
offices as described above.


                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         The following  documents  previously filed with the Commission pursuant
to the  Exchange  Act (File No. 0- 27578) are hereby  incorporated  by reference
into this Prospectus:

         1.   The  Company's  Annual  Report on Form  10-KSB  for the year ended
              December 31, 1996;

         2.   The  Company's  Quarterly  Report on Form  10-QSB for the  quarter
              ended March 31, 1997;

         3.   The  Company's  Quarterly  Report on Form  10-QSB for the  quarter
              ended June 30, 1997;

         4.   The  Company's  Quarterly  Report on Form  10-QSB for the  quarter
              ended September 30, 1997;

         5.   The Company's Current Report on Form 8-K dated April 14, 1997; and

         6.   The  description  of the Common Stock  contained in the  Company's
              Registration  Statement on Form 8-A filed with the  Commission  on
              January 18, 1996.

         All reports  and  documents  filed by the  Company  pursuant to Section
13(a),  13(c),  14 or 15(d)  of the  Exchange  Act,  prior  to the  filing  of a
post-effective amendment which indicates that all securities offered hereby have
been sold or which  deregisters all securities then remaining  unsold,  shall be
deemed to be incorporated  by reference  herein and to be a part hereof from the
respective date of filing of such documents.  Any statement  contained herein or
in a  document  all or a  portion  of  which is  incorporated  or  deemed  to be
incorporated  by reference  herein shall be deemed to be modified or  superseded
for purposes of this Prospectus to the extent that a statement  contained herein
or in any  other  subsequently  filed  document  that also is or is deemed to be
incorporated by reference herein modifies or supersedes such statement. Any such
statement so modified or superseded  shall not be deemed,  except as so modified
or superseded, to constitute a part of this Prospectus.

                                       -2-
<PAGE>

         THIS  PROSPECTUS  INCORPORATES  DOCUMENTS  BY  REFERENCE  WHICH ARE NOT
PRESENTED HEREIN OR DELIVERED HEREWITH. THE COMPANY HEREBY UNDERTAKES TO PROVIDE
WITHOUT CHARGE TO EACH PERSON, INCLUDING ANY BENEFICIAL OWNER, TO WHOM A COPY OF
THIS PROSPECTUS HAS BEEN  DELIVERED,  ON THE WRITTEN OR ORAL REQUEST OF ANY SUCH
PERSON, A COPY OF ANY AND ALL OF THE DOCUMENTS REFERRED TO ABOVE WHICH HAVE BEEN
OR MAY BE INCORPORATED  IN THIS PROSPECTUS BY REFERENCE,  OTHER THAN EXHIBITS TO
SUCH DOCUMENTS (UNLESS SUCH EXHIBITS ARE SPECIFICALLY  INCORPORATED BY REFERENCE
INTO SUCH DOCUMENTS). SUCH REQUESTS FOR DOCUMENTS SHOULD BE DIRECTED TO SUNPHARM
CORPORATION,  4651  SALISBURY  ROAD,  SUITE 205,  JACKSONVILLE,  FLORIDA  32256,
ATTENTION: STEFAN BORG, TELEPHONE NUMBER (904) 296-3320.

         No  person  is  authorized  to give  any  information  or to  make  any
representation  not contained in this  Prospectus,  and, if given or made,  such
information or representation must not be relied upon as having been authorized.
This  Prospectus  does not constitute an offer to sell, or a solicitation  of an
offer to purchase,  any of the  securities  offered by this  Prospectus,  or the
solicitation of a proxy, in any jurisdiction in which, or to any person to whom,
it is  unlawful  to make  such  offer  or  solicitation  of an  offer  or  proxy
solicitation.  Neither the delivery of this  Prospectus nor any  distribution of
the  securities  offered  hereby  shall,  under any  circumstances,  create  any
implication  that the  information  contained  herein is  correct as of any time
subsequent to the date hereof or that there has been no change in the affairs of
the Company since the date hereof.

                                       -3-

<PAGE>

                                   THE COMPANY

         THE  FOLLOWING  IS  QUALIFIED  IN ITS  ENTIRETY  BY THE  MORE  DETAILED
INFORMATION  INCLUDING "RISK FACTORS" APPEARING ELSEWHERE IN THIS PROSPECTUS AND
THE FINANCIAL  STATEMENTS  AND NOTES THERETO  CONTAINED IN THE COMPANY'S  ANNUAL
REPORT  ON FORM 10-K FOR THE YEAR  ENDED  DECEMBER  31,  1996,  INCORPORATED  BY
REFERENCE HEREIN (THE "ANNUAL  REPORT").  EXCEPT FOR THE HISTORICAL  INFORMATION
CONTAINED  HEREIN,  THE DISCUSSION IN THIS PROSPECTUS  CONTAINS  FORWARD-LOOKING
STATEMENTS THAT INVOLVE RISKS AND  UNCERTAINTIES.  THE COMPANY'S  ACTUAL RESULTS
COULD DIFFER MATERIALLY FROM THOSE DISCUSSED HEREIN. FACTORS THAT COULD CAUSE OR
CONTRIBUTE TO SUCH DIFFERENCES  INCLUDE, BUT ARE NOT LIMITED TO, THOSE DISCUSSED
IN "RISK FACTORS"  BEGINNING AT PAGE 5 OF THIS PROSPECTUS AND THOSE DISCUSSED IN
"MANAGEMENT'S  DISCUSSION  AND  ANALYSIS OF FINANCIAL  CONDITION  AND RESULTS OF
OPERATIONS"  AND  "BUSINESS"  CONTAINED  IN THE  ANNUAL  REPORT,  AS WELL  THOSE
DISCUSSED  ELSEWHERE IN THE PROSPECTUS,  THE ANNUAL REPORT OR ANY OTHER DOCUMENT
INCORPORATED BY REFERENCE HEREIN PRIOR TO THE TERMINATION OF THE OFFERING.

         SunPharm  Corporation  ("SunPharm"  or the  "Company") is a development
stage  company  engaged  in the  development  of small  molecule  pharmaceutical
products,   consisting  of  novel  polyamine  analogues  and  other  proprietary
compounds  invented  at the  University  of  Florida  and  licensed  exclusively
worldwide to the Company.  The Company's drug  development  efforts are centered
around three main areas:  (i) cancer,  (ii) acquired  immunodeficiency  syndrome
("AIDS") and (iii)  gastrointestinal  disorders.  The Company  currently  has 13
potential products in various stages of research or development.

         Three of the Company's polyamine analogue products are in Phase I or II
human clinical  trials.  Diethylhomospermine  ("DEHOP") is currently in Phase II
human clinical trials for the treatment of AIDS-related chronic diarrhea.  DEHOP
is also in a Phase I clinical  trial for cancer,  commenced  in  September  1996
under the  supervision  of the  University of Wisconsin  through a federal grant
from  the  National  Cancer  Institute.   Another  of  the  Company's  products,
diethylnorspermine ("DENSPM"),  recently reached the maximum tolerated dose in a
Phase I human clinical trial for the treatment of refractory  solid cancer.  The
Investigational New Drug ("IND") application  relating to DENSPM was transferred
to  the   Company's   strategic   alliance   partner,   Warner-Lambert   Company
("Warner-Lambert").  Warner-Lambert  is expected  to commence  Phase II clinical
trials of DENSPM in the second half of 1997.

         The Company's  strategy is to develop products both  independently  and
through strategic alliances,  pursuant to which the Company will seek financial,
preclinical   and  clinical   trial  and   marketing   assistance   from  larger
pharmaceutical companies for drugs with broad market potential,  while retaining
parallel manufacturing and/or marketing rights for all or part of those markets.
Consistent  with  this  strategy,   the  Company  sublicensed  worldwide  rights
(excluding  Japan) to manufacture and market DENSPM for all cancer  applications
to  Warner-Lambert  in May 1993 and  sublicensed  such rights in Japan to Nippon
Kayaku Co., Ltd. ("Nippon Kayaku") in February 1994.  Warner-Lambert  and Nippon
Kayaku  have agreed to make staged  payments  to SunPharm  for license  fees and
research and development milestones,  of which an aggregate of $2.85 million has
been paid to date,  and to pay  royalties  for sales of  products  incorporating
DENSPM.  In addition,  Warner-Lambert  and Nippon Kayaku have agreed to fund and
administer all further human clinical trials which may be conducted for DENSPM.

         The  Company  was   incorporated   in  Delaware  in  1990  as  Lexigen,
Incorporated and in 1991 changed its name to SunPharm Corporation. The Company's
principal  executive  offices are  located at 4651  Salisbury  Road,  Suite 205,
Jacksonville, Florida 32256 (telephone number (904) 296-3320). SunPharm supports
a principal  research  facility  at the  University  of Florida in  Gainesville,
Florida.

                                       -4-

<PAGE>

                                  RISK FACTORS

         IN  EVALUATING  THE COMPANY  AND ITS  BUSINESS,  PROSPECTIVE  INVESTORS
SHOULD  CAREFULLY  CONSIDER  THE  FOLLOWING  RISK  FACTORS,  TOGETHER  WITH  THE
INFORMATION   AND  FINANCIAL  DATA  SET  FORTH  IN  THE  REPORTS  AND  DOCUMENTS
INCORPORATED  BY REFERENCED  HEREIN,  PRIOR TO  PURCHASING  ANY SHARES OF COMMON
STOCK OFFERED HEREBY.

DEVELOPMENT STAGE COMPANY

         The Company is in the  development  stage and has realized only limited
revenues,  all of which have been derived from payments from  Warner-Lambert and
Nippon Kayaku in connection with license fees and achieving  identified research
milestones  with respect to DENSPM.  The Company has  generated no revenues from
product sales, and it does not expect to generate revenue from product sales for
at least several years.  The Company has incurred net losses since  commencement
of its operations and it expects to continue to incur losses for the foreseeable
future.  As of September  30, 1997,  the Company had an  accumulated  deficit of
$14.5  million.  Moreover,  there  can be no  assurance  that the  Company  will
successfully  complete the transition  from a development  company to successful
operations and/or profitability.

NO ASSURANCE OF SUCCESSFUL PRODUCT DEVELOPMENT OR COMMERCIALIZATION

         Since its inception, the Company has devoted its efforts exclusively to
the  research  and  development  of  potential   pharmaceutical  products  based
primarily upon its licensed polyamine analogue and metal chelator  technologies.
While one of the Company's polyamine analogues,  DEHOP, is presently in Phase II
human clinical trials, and another analogue,  DENSPM, has competed Phase I human
clinical trials,  such trials will not be sufficient to demonstrate their safety
or efficacy,  and substantial further human clinical trials must be successfully
completed before such products may be approved for commercialization.  There can
be no assurance that DEHOP or DENSPM,  or any other potential  product currently
in development or developed in the future, will prove to be safe or effective in
clinical  trials,  meet  applicable  regulatory  standards,  be capable of being
produced  in  commercial  quantities  at  acceptable  cost  or  be  successfully
marketed.

NEED FOR ADDITIONAL FINANCING

         The Company has experienced  negative cash flows from operations  since
its  inception  and has funded its  activities  to date  primarily  from  equity
financings.  The Company has  expended and will  continue to expend  substantial
funds  to  continue  the  research  and  development  of its  products,  conduct
preclinical  and  clinical  trials,  establish  clinical  and  commercial  scale
manufacturing  in its own  facilities or in the  facilities of others and market
its products. The amount and timing of such expenditures are subject to a number
of factors.  Based on its current  operating plan, the Company  anticipates that
its existing  capital  resources  will be adequate to satisfy its capital  needs
through  the  first  quarter  of 1999,  but will not be  sufficient  to fund the
Company's  operations to the point of introduction of a commercially  successful
product. The Company's rights to receive payments from Warner-Lambert and Nippon
Kayaku  are  dependent  upon  the   achievement  of  certain   development   and
commercialization  milestones by Warner-Lambert and Nippon Kayaku, respectively,
and are not within the  control  of the  Company.  Further,  the  capability  of
Warner-Lambert  and Nippon  Kayaku to achieve such  milestones  depends upon the
availability  and/or  prioritization of sufficient  funding to support necessary
testing of DENSPM, the availability of trained and experienced staff for testing
and the results of such testing,  among other factors. As a result, no assurance
can be made that such  milestones will be achieved or that such payments will be
received by the Company.

         The Company  will require  significant  levels of  additional  capital,
which  it  intends  to  raise  through  additional  equity  or  debt  financing,
additional  arrangements  with  corporate  partners  or from other  sources.  No
assurance  can be given  that the  necessary  funds  will be  available  for the
Company to finance its  development  on acceptable  terms or at all. If adequate
funds are not  available,  the Company may be required to curtail  significantly
one or more of its research or  development  programs,  or it may be required to
obtain funds through arrangements with future  collaborative  partners or others
that  may  require  the  Company  to  relinquish  rights  to  some or all of its
technologies or products.

                                       -5-

<PAGE>

GOVERNMENT REGULATION; NO ASSURANCE OF REGULATORY APPROVAL

         Research,   preclinical   development,    clinical   trials   and   the
manufacturing  and marketing of therapeutic  products  under  development by the
Company are subject to extensive  regulation  by government  authorities  in the
United  States and other  countries,  including,  but not limited to, the United
States  Food and Drug  Administration  ("FDA").  In order to obtain  approval to
commercialize a product, the Company must demonstrate to the satisfaction of the
FDA and comparable  authorities in other countries that such product is safe and
effective for its intended uses and that the Company is capable of manufacturing
the product to the applicable  standards.  In the United  States,  this requires
that the product undergo extensive preclinical testing, that the Company file an
IND with the FDA prior to commencing  human clinical trials and that the Company
file a New Drug Application  requesting FDA approval for commercial marketing of
the product.

         The approval process for the Company's product  candidates is likely to
take at least several years and will involve significant  expenditures for which
additional  financing  will be required.  The cost to the Company of  conducting
human clinical trials for any potential product can vary dramatically based on a
number  of  factors,  including  the order and  timing of  clinical  indications
pursued  and the extent of  development  and  financial  support,  if any,  from
corporate partners.  Although Phase I and Phase II clinical trials of DENSPM and
DEHOP,  respectively,  are presently being  conducted,  further clinical trials,
including large,  time-consuming and more costly Phase II and Phase III clinical
trials,  will be required to  demonstrate  the safety and efficacy of DENSPM and
DEHOP. There can be no assurance that the Company will have sufficient resources
to complete the required  regulatory  review  process or that the Company  could
survive  the  inability  to  obtain,  or delays in  obtaining,  such  approvals.
Moreover,  even if regulatory  approval of a drug is granted,  such approval may
entail  limitations  on the  indicated  uses  for  which  it  may  be  marketed.
Furthermore,  a marketed drug, its manufacturer and its manufacturing facilities
are subject to continual review and periodic inspections, and later discovery of
previously unknown problems with a product,  manufacturer or facility may result
in restrictions on the product or  manufacturers,  including a withdrawal of the
product  from the  market.  Failure  to comply  with the  applicable  regulatory
requirements can, among other things, result in fines, suspensions of regulatory
approvals,  product recalls,  operating  restrictions and criminal  prosecution.
Further,  additional government regulation may be established that could prevent
or delay regulatory approval of the Company's products.

DEPENDENCE ON EXCLUSIVE LICENSE

         All of the Company's development and  commercialization  rights for its
products are derived from its license  agreement  with the University of Florida
Research  Foundation,  Inc. (the  "Foundation").  The Company's rights under the
license agreement are subject to early termination under certain  circumstances,
including  failure to pay  royalties  or other  material  breach by the Company,
bankruptcy  of the Company or failure by the  Company to carry on its  business,
failure  to  commence  marketing  of a  licensed  product  within  six months of
approval  in any  specific  market,  and failure to comply with the terms of the
Company's  sponsored  research  agreement with the University of Florida,  among
others. In the event that the license agreement  terminates for any reason,  the
Company's  rights to  manufacture  and  market  DEHOP and  DENSPM  and its other
products would terminate.

LIMITED PERSONNEL;  RELIANCE ON STRATEGIC  ALLIANCES;  RELIANCE ON COLLABORATIVE
ARRANGEMENTS FOR RESEARCH AND DEVELOPMENT

         SunPharm has only seven full-time  employees and one part-time employee
and is substantially dependent on third parties, with all of the risks attendant
thereto, to conduct research and development,  to conduct clinical trials of the
Company's  potential  products  and  to  manufacture  DEHOP,  DENSPM  and  other
compounds for such research and development.

         The Company is dependent upon the University of Florida and Dr. Raymond
Bergeron, the inventor of the Company's technology, with respect to all research
and most early preclinical  development of its potential  products.  The Company
does not have, and has no immediate plans to construct,  a laboratory  facility.
The  Company  has  no  control  over  the  facilities  where  the  research  and
development work is being performed or over the personnel

                                       -6-

<PAGE>

performing  such work.  If the  University of Florida  breaches its  obligations
under its agreement with the Company,  the Company's  remedies may be limited by
applicable law affecting actions against state agencies.

         The  Company  benefits   significantly   from  and  is  dependent  upon
collaborative  arrangements  with the  University  of Florida and Dr.  Bergeron.
Although the Company believes that its relationships  with its collaborators are
good,  there can be no  assurance  that the  Company's  relationships  with such
institutions  and  individuals  will continue.  The loss of these  relationships
would significantly increase the Company's expenses and could have a substantial
negative effect on the Company's ability to attain its long-range objectives.

         The Company is dependent upon strategic  alliances with  Warner-Lambert
and Nippon  Kayaku with  respect to the  development  and  commercialization  of
DENSPM,  and  expects  to  rely  upon  future  strategic  alliances  with  other
pharmaceutical companies with respect to other potential products.  Although the
Company  believes that  Warner-Lambert,  Nippon Kayaku and any future  strategic
alliance  partners  have or will have an  economic  motivation  to  develop  and
commercialize such products, the amount and timing of resources to be devoted to
these  activities  are not within the control of the Company and will be subject
to the  priorities  of such  strategic  alliance  partners in  allocating  these
resources,  which may not be consistent  with the best interests of the Company.
In addition,  the Company's  strategic alliance partners or their affiliates may
be pursuing  alternative  products or  technologies  which may compete  with the
Company's  products  and  technologies.  No  assurances  can be  given  that the
Company's  agreements with  Warner-Lambert  and Nippon Kayaku, or with any other
strategic  alliances  the Company  may enter in the  future,  will result in the
successful  development  or  commercialization  of  DENSPM  or  other  potential
products,  or that any such agreements will result in any significant  revenues,
profits or cost savings to the Company.  Furthermore, no assurances can be given
that the Company will be able to enter into future strategic alliance agreements
on favorable  terms or at all. In addition,  the  Company's  strategic  alliance
partners  or  their   affiliates  may  be  pursuing   alternative   products  or
technologies which may compete with the Company's products and technologies.

UNCERTAINTIES AS TO PATENTS AND PROPRIETARY TECHNOLOGIES

         Subject  to a  nonexclusive  statutory  license  to the  United  States
government,  the Company is the exclusive licensee of more than 25 issued United
States and foreign patents and numerous pending patent applications. The Company
is required to meet specified  milestone and diligence  requirements in order to
retain its license to the patents and other proprietary rights licensed from the
Foundation. No assurance can be given that the Company will satisfy any of these
requirements.

         The patent  position of  pharmaceutical  companies  generally is highly
uncertain  and involves  complex  legal and factual  questions.  There can be no
assurance that the patents licensed from the Foundation will provide substantial
protection or  commercial  benefit to the Company,  afford the Company  adequate
protection from competing products,  or not be challenged or declared invalid or
that  additional  related United States or foreign  patents will be issued,  the
occurrence of any of which could have a material adverse effect on the Company's
operations. The United States government could use its rights as licensee of the
Foundation's patents to increase the supply of products based on such patents or
to reduce the cost of treatment with such products.

         Certain proprietary trade secrets and unpatented know-how are important
to the  Company.  There can be no  assurance  that others may not  independently
develop the same or similar  technologies.  Although the Company has taken steps
to protect its trade secrets and unpatented know-how,  third parties nonetheless
may gain access to such information.

         There  has  been  significant   litigation  in  the  biotechnology  and
pharmaceutical  industry regarding patents and other proprietary  rights. If the
Company  became  involved  in  similar  litigation  regarding  its  intellectual
property rights, the cost of such litigation could be substantial.

         The  limited  capital  resources  of the  Company  could  significantly
adversely  affect its  ability to  enforce or defend its  intellectual  property
rights, especially against companies which have substantially more resources.

                                       -7-
<PAGE>

UNCERTAINTY OF HEALTH CARE REFORM MEASURES; THIRD-PARTY REIMBURSEMENT

         The Company's  ability to successfully  commercialize  its products may
depend  in part on the  extent  to  which  reimbursement  for the  costs of such
products  and  related  treatments  will be  available  from  government  health
administration   authorities,   private  health  coverage   insurers  and  other
organizations.  While the  legislative  and  regulatory  proposals  of President
Clinton to reform the health care system have been tabled  temporarily and while
the Company  cannot  predict  whether any such future  legislative or regulatory
proposals will be adopted,  the pendency of such proposals could have a material
adverse  effect on the  Company's  ability  to raise  capital.  Any such  reform
measures, if adopted, could adversely affect the pricing of therapeutic products
in the United States or the amount of reimbursement available from United States
governmental  agencies or third party  insurers and could  materially  adversely
affect  the  Company  in  general.   Furthermore,   the  Company's   ability  to
commercialize its potential  product portfolio may be adversely  affected to the
extent  that such  proposals  have a material  adverse  effect on the  business,
financial  condition and  profitability  of other companies that are prospective
collaborators for certain of the Company's proposed products.

         In both domestic and foreign markets,  sales of the Company's  proposed
products  will  depend  in  part  on  the  availability  of  reimbursement  from
third-party payors such as government health administration authorities, private
health insurers and other  organizations.  Third-party  payors are  increasingly
challenging the price and cost  effectiveness  of medical products and services.
Significant  uncertainty exists as to the reimbursement status of newly approved
health care  products.  There can be no assurance  that the  Company's  proposed
products  will  be  considered  cost  effective  or  that  adequate  third-party
reimbursement  will be available to enable the Company to maintain  price levels
sufficient  to  realize  an  appropriate  return on its  investment  in  product
development.    Legislation   and   regulations   affecting   the   pricing   of
pharmaceuticals  may change  before any of the Company's  proposed  products are
approved  for  marketing.  Adoption of such  legislation  or  regulations  could
further limit reimbursement for medical products and services.

COMPETITION; RAPID TECHNOLOGICAL CHANGE

         The   Company  is  engaged  in   pharmaceutical   product   development
characterized by extensive  research efforts and rapid  technological  progress.
There are many pharmaceutical  companies,  biotechnology  companies,  public and
private universities,  and research  organizations  actively engaged in research
and  development  of products that may be similar to, or seek to attack the same
targets as,  SunPharm's  products.  Many of the Company's  existing or potential
competitors have substantially greater financial, technical, and human resources
than the Company and may be better equipped to develop,  manufacture, and market
products.  These  companies  may develop and  introduce  products and  processes
competitive  with or  superior  to  those of the  Company.  In  addition,  other
technologies  or  products  may be  developed  that have an  entirely  different
approach  or means of  accomplishing  the  intended  purposes  of the  Company's
products, which might render the Company's technology and products uncompetitive
or obsolete.  There can be no assurance that the Company will be able to compete
successfully.

RELIANCE ON FOUNDER

         The  Company  is  highly  dependent  upon  Stefan  Borg,  its  founder,
President and Chief  Executive  Officer.  The loss of Mr. Borg's  services could
have a material adverse effect on the Company.

PRODUCT LIABILITY EXPOSURE; LIMITED INSURANCE COVERAGE

         The testing,  marketing and sale of  pharmaceutical  products entails a
risk of product  liability claims by consumers and others and such claims may be
asserted against the Company.  The Company  maintains  $1,000,000 of primary and
$1,000,000 of excess product liability  coverage  applicable only for DENSPM and
DEHOP for the Phase I human  clinical  trials of DENSPM  and for the Phase I and
Phase II human  clinical  trials of DEHOP.  There can be no  assurance  that the
amount  of  product  liability  insurance  maintained  by the  Company  would be
sufficient to cover the liabilities associated with claims that might be made in
connection  with  such  clinical  trials,  or that the  Company  will be able to
maintain or obtain  product  liability  insurance  in the future at a reasonable
cost or in an amount sufficient to

                                       -8-

<PAGE>

cover all possible  liabilities.  In the event of a successful product liability
suit against the Company, lack or insufficiency of insurance coverage could have
a material  adverse  effect on the  Company.  Further,  SunPharm  is required to
indemnify the  University of Florida and its trustees,  officers,  employees and
affiliates  against claims  resulting  from the  manufacture or sale of products
derived from its  polyamine  compounds  and to have product  liability  coverage
naming the University of Florida as an additional insured for such risks.

LACK OF MANUFACTURING EXPERIENCE OR FACILITIES

         The Company  currently  contracts with third parties for the production
of compounds in limited  quantities for its  preclinical and clinical trials and
currently  does not possess the staff or  facilities  necessary  to  manufacture
products in  commercial  quantities.  The Company has entered into an agreement,
however,  for the  production  of  clinical-scale  quantities of its products by
third party  contractors  which it believes  capable of supplying its short-term
requirements.  There can be no assurance  that the  polyamine  compounds or iron
chelators  can be  manufactured  by the Company or its suppliers at a cost or in
quantities  necessary to make such compounds  commercially viable products.  The
Company  also may  encounter  significant  delays  in  obtaining  supplies  from
third-party  manufacturers or experience  interruptions in its supplies.  If the
Company is unable to obtain adequate supplies,  its business would be materially
adversely affected.

VOLATILITY OF STOCK PRICE; LIQUIDATION PREFERENCE; LACK OF DIVIDENDS

         The  market  prices  for  securities  of  biopharmaceutical   companies
historically have been highly volatile.  Announcements concerning the Company or
its  competitors,   including  the  results  of  testing  and  clinical  trials,
technological  innovations,  or  commercial  products,  government  regulations,
developments  concerning  proprietary  rights,  including patents and litigation
matters, a change in status of a collaborative partner,  public concern relating
to the commercial  value or safety of the Company's  products,  and stock market
conditions in general may have a  significant  impact on the price of the Common
Stock.

         The  Company  has not paid  dividends  on its  Common  Stock  since its
inception  and does not  intend  to pay any such  dividends  in the  foreseeable
future.  For the years ended  December  31,  1994,  1995 and 1996,  and the nine
months ended September 30, 1997, the Company  incurred net losses of $2,159,001,
$4,369,653, $2,836,609 and $2,886,762, respectively.

SHARES ELIGIBLE FOR FUTURE SALE

         Sales of a  substantial  number of shares of Common Stock in the public
market  could  adversely  affect the market  price of the Common  Stock.  Of the
5,732,471  shares of Common  Stock  outstanding  as of September  30, 1997,  (i)
3,724,185  shares  (including  the  Shares  offered  hereby  that are  presently
outstanding) are eligible for sale without  restriction under the Securities Act
(except  for shares of Common  Stock held by  affiliates  of the  Company  whose
shares  may be  sold  subject  to  the  volume  limitations  and  certain  other
requirements  of Rule 144 under the Securities  Act) or have been registered for
resale  under  the  Securities  Act and (ii)  1,948,286  shares  are  restricted
securities  that may not be resold  unless  the resale is  registered  under the
Securities  Act or it is  made  subject  to the  volume  limitations  and  other
restrictions  of Rule 144 or  another  exemption  from  registration  under  the
Securities Act. As of September 30, 1997,  5,560,885  shares of Common Stock (or
49.5% of the total number of shares  outstanding  on a fully diluted basis) were
issuable upon the exercise of  outstanding  options and  warrants,  of which the
issuance or resale of 2,333,621 shares (including the Shares offered hereby that
are issuable upon the exercise of warrants or options) has been registered under
the  Securities  Act.  The  existence of such  warrants and options,  as well as
certain registration rights, may adversely affect the terms on which the Company
may obtain additional equity financing.

                                       -9-

<PAGE>

CONCENTRATION OF STOCK OWNERSHIP; FACTORS INHIBITING TAKEOVER

         As  of  September  30,  1997,  the  Company's  executive  officers  and
directors beneficially owned approximately 45% of the Company's Common Stock. As
a result,  such  persons  will have a  substantial  influence  on the  Company's
affairs and business. In addition, the Company's Board of Directors can, without
obtaining  stockholder  approval,  issue shares of preferred stock having rights
that could  adversely  effect the voting  power of holders of the Common  Stock.
Also,  Section 203 of the Delaware  General  Corporation  Law restricts  certain
business  combinations  with any  "interested  stockholder"  as  defined by such
statute.  Any of the foregoing  factors may delay,  defer or prevent a change in
control of the Company. See "Description of Securities."

FORWARD-LOOKING STATEMENTS AND ASSOCIATED RISKS

         This  Prospectus  contains   forward-looking   statements.   The  words
"anticipate," "believe," "expect," "estimate," "project" and similar expressions
are intended to identify forward-looking statements. Such statements reflect the
Company's current views with respect to future events and financial  performance
and are subject to certain risks,  uncertainties and assumptions,  including the
risk factors set forth above. Should one or more of these risks or uncertainties
materialize,  or should underlying  assumptions prove incorrect,  actual results
may vary materially from those  anticipated,  believed,  expected,  estimated or
projected.


                                 USE OF PROCEEDS

      The Company intends to use the proceeds from the exercise of warrants
and  options,  if any are  exercised,  for  human  clinical  trials of DEHOP and
DENSPM,  research  and  development  of other  potential  products  and  general
corporate  purposes.  The Company will not receive any proceeds  from sales,  if
any, of shares of Common Stock by the Selling Stockholders to the public.


                                      -10-

<PAGE>

                              SELLING STOCKHOLDERS

         The Shares covered by this Prospectus  consist of (i) 816,010 shares of
Common Stock that are issued and outstanding as of the date of this  Prospectus,
(ii)  614,301  shares of Common  Stock  issuable  upon the  exercise  of certain
outstanding warrants,  and (iii) 68,605 shares of Common Stock issuable upon the
exercise of certain outstanding options.

         During the year ended  December 31,  1996,  the Company  completed  the
private  placement of 537,623 units  pursuant to Section 4(2) of the  Securities
Act of 1933  for  $5.50  per  unit.  Each  unit  consisted  of one  share of the
Company's  Common Stock and one redeemable  Common Stock Purchase  Warrant.  The
warrants  included  in the units had an original  expiration  date of four years
from the date of issuance and original  exercise prices of $5.50 per share until
the first anniversary  date, $6.50 per share until the second  anniversary date,
and $7.50 per share  thereafter.  The warrants are subject to  redemption by the
Company at $0.01 per warrant,  provided the  Company's  Common Stock closes at a
price (under the terms of such warrants as originally issued) of $8.50, $9.50 or
$10.50 per share for 20  consecutive  days  during the  second,  third or fourth
years,  respectively,  of the term of the  warrant.  Proceeds  from the  private
placement were  approximately  $2,636,000 net of placement agent and other costs
of approximately $321,000.

         Also during 1996, the Company offered  certain of its existing  warrant
holders a 30% reduction in their  applicable  exercise  price if they  exercised
their warrants prior to December 31, 1996. Additionally,  for each four warrants
exercised,  participants  were issued a warrant identical to the warrants issued
in the private  placement.  As a result of this warrant exchange offer,  236,721
outstanding  warrants were  exercised in exchange for 236,721  shares of Company
Stock  and  59,178  new  warrants.  Proceeds  from  the  warrant  exchange  were
approximately $459,000, net offering costs of approximately $34,000.

         In April 1997, the Company  offered to reduce the exercise price of the
warrants  issued in the 1996 private  placement  and warrant  exchange  offer to
$3.00 per share,  to extend the  expiration  date of the  warrants  to March 31,
2001,  and to increase  the price per share at which the Common Stock must trade
to permit the Company to redeem the warrants to $16.00, $20.00 and $24.00 for 20
consecutive  days  during  the  years  ending  March  31,  1999,  2000 or  2001,
respectively.  The holders of warrants  exercisable  for an aggregate of 574,479
shares  agreed to such  modifications,  in  consideration  for their consent and
waiver  with  respect to the  Company's  sale of Common  Stock and  warrants  to
certain institutional investors in March 1997.

         The Shares  offered  hereby  include shares of Common Stock sold to the
Selling  Stockholders  in the  Company's  1996  private  placement  and  warrant
exchange  offer, as well as shares issuable upon the exercise of warrants issued
in such transactions, pursuant to the Company's agreement to file a registration
statement  covering the resale of such shares by such Selling  Stockholders.  In
addition,  the Shares  include  certain shares of Common Stock issuable upon the
exercise of warrants  and options  issued  prior to the  Company's  1995 initial
public  offering,  pursuant to certain  "piggyback"  registration  rights of the
holders of such options and warrants.

         Certain  shares of Common Stock owned by or issuable  upon the exercise
of warrants held by SunPharm Investors,  L.P. ("SunPharm Investors"),  a limited
partnership of which Tioga Capital Corporation ("Tioga") is the general partner,
are covered by this Prospectus.  George B. Schwartz,  a director of the Company,
is the founder and  President  of Tioga.  On July 19, 1996,  the Company  issued
159,842 shares of Common Stock and warrants to purchase  39,960 shares of Common
Stock to  SunPharm  Investors  in  consideration  for the  exercise  by SunPharm
Investors of warrants to purchase 159,842 shares of Common Stock and the payment
of the $304,262  exercise price of such  warrants.  In April 1997, in connection
with the  amendments  to the  terms of  warrants  issued in the  Company's  1996
private  placement and exchange offer, the Company agreed to reduce the exercise
price of the warrants  issued in July 1996 to $3.00 per share,  and extended the
expiration date of such warrants to March 31, 2001, on the same terms offered to
other holders of such warrants.

         The following  table sets forth the names of the Selling  Stockholders,
the number of shares of Common Stock  (including  the shares  issuable  upon the
exercise of the warrants and options)  beneficially  owned by each of them as of
the date of this Prospectus, the number of shares covered by this Prospectus and
the  amount of shares to be held by each of them after the  offering  covered by
this Prospectus (assuming that all shares subject to this Prospectus are sold).

                                      -11-

<PAGE>
<TABLE>
<CAPTION>

                                                               SHARES OF COMMON STOCK                COMMON STOCK
                                         SHARES OF           COVERED BY THIS PROSPECTUS            BENEFICIALLY OWNED
                                       COMMON STOCK     -------------------------------------     AFTER THE OFFERING(1)
                                    BENEFICIALLY OWNED               ISSUABLE UPON            ---------------------------
                                         PRIOR TO                     EXERCISE OF                 NUMBER
     NAME OF SELLING STOCKHOLDER      THE OFFERING(1)   OUTSTANDING WARRANTS/OPTIONS   TOTAL     OF SHARES    PERCENTAGE
     ---------------------------      ---------------   ----------- ----------------   -----     ---------    ----------

<S>                                         <C>             <C>        <C>             <C>                         
Fred M. Cone, Jr....................        5,000           2,500      2,500           5,000       --             *
Jerome Goldberg.....................        5,000              --      5,000           5,000       --             *
Stanley and Lesley Berkovitz........        7,000           3,500      3,500           7,000       --             *
Richard M. Lilly TTEE
    Richard M. Lilly Revocable
    Trust...........................       20,000          10,000     10,000          20,000       --             *
Michael Lilly.......................       10,000           5,000      5,000          10,000       --             *
Nicholas Lilly......................        2,000           1,000      1,000           2,000       --             *
James Lilly.........................        2,000           1,000      1,000           2,000       --             *
David Zarchan.......................       27,272          13,636     13,636          27,272       --             *
Adolf Bohn..........................       72,720          36,360     36,360          72,720       --             *
KG Associates.......................       13,500           6,750      6,750          13,500       --             *
Henri Zimmerli......................       30,000          15,000     15,000          30,000       --             *
Tina D. Lilly IRA...................        6,000           3,000      3,000           6,000       --             *
Mary E. Stuart......................       18,180           9,090      9,090          18,180       --             *
JWM Partners........................        9,092           4,546      4,546           9,092       --             *
Universal Partners, L.P.............        2,857              --      2,857           2,857       --             *
George F. Bowles,
   Trustee Bowles Trust.............       28,571          22,857      5,714          28,571       --             *
Elliot S. Schlissel and
   Lois Schlissel...................       14,286          11,429      2,857          14,286       --             *
Jacqueline Lesley Towell............       14,286          11,429      2,857          14,286       --             *
Thomas Brazier and
   Paulette Butler..................        7,142           5,714      1,428           7,142       --             *
SunPharm Investors, L.P.............      307,820         159,842     39,960         199,802     108,018        1.9%
Julian J. D'Agostine................       18,180           9,090      9,090          18,180       --             *
Hans Bergman........................       10,000           5,000      5,000          10,000       --             *
Dr. Ben-Ami Feit and
   Ora Feit JTWROS..................        4,000           2,000      2,000           4,000       --             *
Ran Feit............................        6,508           3,254      3,254           6,508       --             *
Moshe Malki.........................        6,000           3,000      3,000           6,000       --             *
Guy Perkins.........................       20,000          10,000     10,000          20,000       --             *
Dr. Thierry Waelli..................       40,000          20,000     20,000          40,000       --             *
Isabelle Fischer....................       40,000          20,000     20,000          40,000       --             *
Menachem Benbassat..................        4,000           2,000      2,000           4,000       --             *
Gottfried Hofmann...................       80,000          40,000     40,000          80,000       --             *
Lewinger Family L.P.................      100,000          50,000     50,000         100,000       --             *
Peter Bollmann......................       10,000           5,000      5,000          10,000       --             *
Earlsward Limited...................       80,000          40,000     40,000          80,000       --             *
Veldan Olten Inc....................       80,000          40,000     40,000          80,000       --             *
Peter Waelli........................       60,000          30,000     30,000          60,000       --             *
Henri Chalhoub......................       20,000          10,000     10,000          20,000       --             *
Donald E. Kaplan....................        6,000           3,000      3,000           6,000       --             *
Carl J. Domino......................       20,000          10,000     10,000          20,000       --             *
</TABLE>


                                                       -12-
<PAGE>
<TABLE>
<CAPTION>

                                                               SHARES OF COMMON STOCK                COMMON STOCK
                                         SHARES OF           COVERED BY THIS PROSPECTUS            BENEFICIALLY OWNED
                                       COMMON STOCK     -------------------------------------     AFTER THE OFFERING(1)
                                    BENEFICIALLY OWNED               ISSUABLE UPON            ---------------------------
                                         PRIOR TO                     EXERCISE OF                 NUMBER
     NAME OF SELLING STOCKHOLDER      THE OFFERING(1)   OUTSTANDING WARRANTS/OPTIONS   TOTAL     OF SHARES    PERCENTAGE
     ---------------------------      ---------------   ----------- ----------------   -----     ---------    ----------
<S>                                         <C>             <C>        <C>             <C>        <C>            <C>

W. Richard and Lori J. Lueck........       17,800           5,000     12,800          17,800       --             *
Miller Advisory Corp. Pension
   Plan & Trust, Ronald L. Miller,
   Trustee..........................       10,000           5,000      5,000          10,000       --             *
Margaret M. Jordan..................        2,000           1,000      1,000           2,000       --             *
Maurice and Stacy Gozlan
   Tenants by the Entirety..........       20,000          10,000     10,000          20,000       --             *
Deborah Christian...................        5,454           2,727      2,727           5,454       --             *
Josef Paradis and
   Shelley Paradis..................       36,360          18,180     18,180          36,360       --             *
Jeffrey H. Lerer....................        5,000           2,500      2,500           5,000       --             *
Alan Gainsford......................       15,000           7,500      7,500          15,000       --             *
Haim Shaked and
Ruth Shaked.........................        4,000           2,000      2,000           4,000       --             *
Richard N. Bernstein, as Trustee....       20,000          10,000     10,000          20,000       --             *
Milton Susman Trustee
   Milton Susman Trust
   UAD-5-8-89 FOB Milton
   Susman...........................       10,000           5,000      5,000          10,000       --             *
Michael Futerman....................       36,000          18,000     18,000          36,000       --             *
Sanford B. Miot.....................        9,090           4,545      4,545           9,090       --             *
Rush & Co...........................       37,200          18,600     18,600          37,200       --             *
Martin Greenberg....................        5,505              --      5,505           5,505       --             *
Moty Hermon.........................        3,000           1,500      1,500           3,000       --             *
Forsyth Realty, Inc. P/S............        9,090           4,545      4,545           9,090       --             *
Michael M. Rothkopf.................       15,500           5,000     10,500          15,500       --             *
Harry Z. Rosengart..................       91,500          51,220         --          51,220     40,280           *
Carmine C. Mascoli..................       28,106(3)       18,696         --          18,696      9,410           *
Gene Salkind, Trustee of the
   Danielle Schwartz Trust..........       52,718              --     52,718(2)       52,718       --             *
Howard, Darby & Levin...............        5,843              --      5,843(2)        5,843       --             *
Ronald T. Lyman.....................        3,970              --      3,970(2)        3,970       --             *
John H. Friedman....................        2,501              --      2,501(2)        2,501       --             *
Russell B. Pyne.....................        2,501              --      2,501(2)        2,501       --             *
Da H. Kim...........................        1,072              --      1,072(2)        1,072       --             *
TOTAL                                   1,527,936         816,010    682,906       1,498,916    157,708        2.7%
- ---------------------------
</TABLE>

*    Represents less than 1%
(1)  The table  reflects the shares of Common Stock  beneficially  owned by each
     Selling  Stockholder  and includes  the number of Shares  being  registered
     hereunder that each Selling  Shareholder would receive upon exercise of all
     warrants and options, as well as the shares of Common Stock otherwise owned
     by such  Selling  Stockholder.  While  the  Selling  Stockholders  have not
     expressed a specific  intention as to the number of Shares to be sold,  the
     table  shows the  beneficial  ownership  that  would  result if all  Shares
     issuable upon exercise of the warrants and options were sold.
(2)  Shares of Common Stock that are issuable upon exercise of certain options.
(3)  Includes 7,010 shares of common stock in which Mr. Mascoli holds beneficial
     interest through SunPharm Investors, L.P.

                                      -13-
<PAGE>


                              PLAN OF DISTRIBUTION

         The Selling  Stockholders  may offer the shares of Common Stock subject
to this  Prospectus  from time to time for their own account in  transactions on
The Nasdaq Small Cap Market, in negotiated  transactions or otherwise, at market
prices  prevailing  at the time of sale,  at prices  related to such  prevailing
market prices or at negotiated prices. The Selling  Stockholders may effect such
transactions  by  selling  the  shares  to or  through  broker-dealers  and such
broker-dealers may receive compensation in the form of discounts, concessions or
commissions  from the Selling  Stockholders  or the purchasers of the shares for
whom such  broker-dealers  may act as agent or to whom they sell as principal or
both (which  compensation  to a particular  broker-dealer  might be in excess of
customary commissions).  The methods by which the shares may be sold include (i)
a block  trade  (which  may  involve  crosses)  in which the broker or dealer so
engaged will attempt to sell the securities as agent but may position and resell
a  portion  of the  block as  principal  to  facilitate  the  transaction;  (ii)
purchases by a broker or dealer as principal and resale by such broker or dealer
for  its  account  pursuant  to  this  Prospectus;   (iii)  ordinary   brokerage
transactions and transactions in which the broker solicits purchasers;  and (iv)
privately negotiated transactions.

         None of the  proceeds  from  the sale of the  shares  of  Common  Stock
subject to this Prospectus by the Selling  Stockholders  will be received by the
Company.  The Company has agreed to bear certain expenses in connection with the
registration  and sale of the shares being offered by the Selling  Stockholders,
and has agreed to indemnify the Selling Stockholders against certain liabilities
under the  Securities  Act.  The  Selling  Stockholders  and any  broker-dealers
participating  in the distribution of the shares of Common Stock subject to this
Prospectus  may  be  deemed  to be  "underwriters"  within  the  meaning  of the
Securities Act, and any profit on the sale of Shares by the Selling Stockholders
and any  commissions  received  by any such  broker-dealers  may be deemed to be
underwriting commission under the Securities Act.

         The shares of Common  Stock  subject to this  Prospectus  have not been
registered for sale by the Selling Stockholders under the securities laws of any
state  as  of  the  date  of  this  Prospectus.  Brokers  or  dealers  effecting
transactions  in the  shares  should  confirm  registration  thereof  under  the
securities laws of the states in which such transactions occur, or the existence
of any exemption from registration.

         If underwriters are used in any offering of shares of Common Stock, the
underwriter  or  underwriters  with respect to such  offering will be named in a
Prospectus  Supplement.  Only underwriters named in a Prospectus Supplement will
be deemed to be  underwriters  in  connection  with the  shares of Common  Stock
offered   thereby.   Firms  not  so  named  will  have  no  direct  or  indirect
participation in the underwriting of such Common Stock, although such a firm may
participate  in the  distribution  of  such  Common  Stock  under  circumstances
entitling  it to a  dealer's  commission.  Unless  otherwise  set  forth  in the
Prospectus  Supplement  relating to such offering,  any  underwriting  agreement
pertaining  to any  offering  of shares of Common  Stock  will (i)  entitle  the
underwriters  to  indemnification  by the Company  and the Selling  Stockholders
against  certain civil  liabilities  under the Securities Act; (ii) provide that
the  obligations  of the  underwriters  will be subject  to  certain  conditions
precedent; and (iii) provide that the underwriters will be obligated to purchase
all shares of such  Common  Stock so offered  if any  shares are  purchased.  If
underwriters  are  used in any  offering  of  Common  Stock,  the  names of such
underwriters,  the anticipated  date of delivery and other material terms of the
transaction  will be set forth in the  Prospectus  Supplement  relating  to such
offering.

         Underwriters,  brokers and dealers may engage in  transactions  with or
perform services for the Company in the ordinary course of business.

         Offers to purchase Common Stock may be solicited, and sales thereof may
be made, by the Selling Stockholders directly to one or more purchasers in fixed
price offerings, in negotiated transactions,  at market prices prevailing at the
time  of sale or at  prices  related  to such  market  prices.  Certain  of such
purchasers may be deemed to be  underwriters  with respect to any resale by them
of Common  Stock so  acquired.  This  Prospectus  may be  delivered  by any such
purchaser  in  connection  with any such  resales.  Such  resales may be through
underwriters,  brokers or dealers, or directly to one or more purchasers, all in
the manner described above.


                                      -14-
<PAGE>


         NEW  JERSEY   INVESTORS:   The   Securities   offered  by  the  Selling
Stockholders  may be sold in New Jersey only through a registered  broker-dealer
or in reliance upon an exemption from registration under the Securities Act.

                            DESCRIPTION OF SECURITIES

COMMON STOCK

         The Company has authorized 25,000,000 shares of Common Stock, par value
$.0001 per share.  As of September  30, 1997,  5,732,471  shares of Common Stock
were issued and outstanding and held by approximately 130 holders of record.

         The  holders of Common  Stock are  entitled  to one vote for each share
held of record on all  matters to which  stockholders  may vote,  including  the
election of directors. The holders of Common Stock are entitled to share ratably
on a share for  share  basis  with  respect  to any  dividends  when,  as and if
declared by the Board of Directors out of funds legally available  therefor.  In
the event of a liquidation, dissolution or winding up of the Company, holders of
the Common Stock are  entitled to share  ratably in all assets  remaining  after
payment of liabilities  and the liquidation  preference of any then  outstanding
Preferred Stock.  Holders of Common Stock have no preemptive rights and no right
to convert their Common Stock into any other securities. There are no redemption
or sinking fund  provisions  applicable  to the Common  Stock.  All  outstanding
shares of Common Stock are, and all shares of Common Stock included in the Units
offered hereby will be, fully paid and nonassessable.

PREFERRED STOCK

         The Board of Directors has the authority, without further action by the
stockholders,  to issue up to  2,500,000  shares of Preferred  Stock,  par value
$.001 per  share,  in one or more  series  and to fix the  rights,  preferences,
privileges and  restrictions  thereof,  including  dividend  rights,  conversion
rights,  voting rights, terms of redemption,  liquidation  preferences,  sinking
fund terms and the number of shares  constituting  any series or the designation
of such  series.  The  issuance of Preferred  Stock could  adversely  affect the
voting power of the holders of Common Stock and the likelihood that such holders
will receive dividend  payments and payments upon liquidation and could have the
effect of delaying,  deferring or preventing a change in control of the Company.
The Company has no present plan to issue any shares of Preferred Stock.

OUTSTANDING OPTIONS AND WARRANTS

         At September 30, 1997,  the Company had an aggregate of 928,827  shares
of Common  Stock  reserved  for  issuance  pursuant to  outstanding  options and
521,620 additional shares available for the grant of options under the Company's
1994 Stock Option Plan and 1995  Nonemployee  Directors'  Stock Option Plan.  At
September  30,  1997,  the  Company  had  outstanding  warrants  to  purchase an
aggregate of 4,632,058 shares of Common Stock.

TRANSFER AGENT AND REGISTRAR

         Continental  Stock  Transfer & Trust Company in New York,  New York, is
the transfer agent for the Common Stock.

REGISTRATION RIGHTS

         Pursuant to  agreements  between the Company and the holders of 634,100
outstanding shares of Common Stock and of warrants exercisable for an additional
524,618  shares of Common  Stock,  such  holders  have the right to require  the
Company to register  the sale of such shares of Common  Stock (the  "Registrable
Securities")  under the  Securities Act under certain  circumstances.  See "Risk
Factors--Shares  Eligible for Future Sale." Subject to certain  exceptions,  the
holders of 50% of the Registrable Securities may require the Company to register
the  Registrable  Securities  held by them for  public  resale at the  Company's
expense, less underwriters'  commissions.  This right may be exercised twice, so
long as at least 90% of the  Registrable  Securities  requested to be registered
were in fact registered and sold. In

                                      -15-
<PAGE>

addition,  if at any time  following  this  offering  the  Company  proposes  to
register any of its securities  under the Securities Act, holders of Registrable
Securities  and  holders  of an  additional  1,698,171  shares of  Common  Stock
(including  712,736  shares which may be acquired upon  exercise of  outstanding
options and warrants) are entitled, subject to certain restrictions,  to include
their  Registrable  Securities in such  registration.  Finally,  the Company has
agreed  to file  and use its  best  efforts  to  cause  the  effectiveness  of a
registration statement on or before March 28, 1998 with respect to the resale of
the 1,948,286 shares of Common Stock and 1,948,286  additional  shares of Common
Stock  issuable  upon the  exercise  of the  warrants  that  were  issued in the
Company's  1997  private  placement  of units  consisting  of  Common  Stock and
warrants.  The Company is required to bear all registration and selling expenses
other than  underwriters'  commissions in connection  with the  registration  of
Registrable   Securities  for  the  two  required   registrations  and  for  all
Company-initiated registrations.

DELAWARE BUSINESS COMBINATION STATUTE

         The Company is subject to the provisions of Section 203 of the Delaware
General Corporation Law, an anti-takeover law. In general, the statute prohibits
a publicly held Delaware  corporation from engaging in a "business  combination"
with an "interested  stockholder"  for a period of three years after the date of
the transaction in which the person became an interested stockholder, unless the
business combination is approved in a prescribed manner. For purposes of Section
203, a "business combination" includes a merger, asset sale or other transaction
resulting  in  a  financial  benefit  to  the  interested  stockholder,  and  an
"interested   stockholder"  is  a  person  who,  together  with  affiliates  and
associates,  owns (or  within  three  years  prior,  did own) 15% or more of the
corporation's voting stock.

                                  LEGAL MATTERS

         Certain  legal  matters with respect to the validity of the  securities
offered  hereby have been passed upon for the Company by Andrews & Kurth L.L.P.,
Houston, Texas.

                                     EXPERTS

         The financial  statements  incorporated in this prospectus by reference
from the Company's  Annual Report on Form 10-KSB for the year ended December 31,
1996 have been audited by Deloitte & Touche LLP, independent auditors, as stated
in their  report,  which is  incorporated  herein  by  reference  (which  report
expresses an unqualified opinion and includes an explanatory paragraph referring
to recurring losses incurred by the Company from inception and to an uncertainty
surrounding the Company's ability to obtain  sufficient  financing in 1997 which
raises  substantial  doubt  about the  Company's  ability to continue as a going
concern), and have been so incorporated in reliance upon the report of such firm
given upon their authority as experts in accounting and auditing.

                                      -16-

<PAGE>

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

         NO DEALER,  SALESPERSON OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE
ANY INFORMATION OR TO MAKE ANY  REPRESENTATIONS IN CONNECTION WITH THIS OFFERING
OTHER THAN THOSE  CONTAINED IN OR  INCORPORATED  BY REFERENCE IN THIS PROSPECTUS
AND, IF GIVEN OR MADE,  SUCH  INFORMATION OR  REPRESENTATION  MUST NOT BE RELIED
UPON AS  HAVING  BEEN  AUTHORIZED  BY THE  COMPANY.  THIS  PROSPECTUS  DOES  NOT
CONSTITUTE  AN OFFER TO SELL OR A  SOLICITATION  OF AN OFFER TO BUY ANY OF THESE
SECURITIES IN ANY JURISDICTION TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH
OFFER  OR  SOLICITATION  IN  SUCH  JURISDICTION.  NEITHER  THE  DELIVER  OF THIS
PROSPECTUS  NOR ANY  SALE  MADE  HEREUNDER  SHALL  AT ANY  TIME  IMPLY  THAT THE
INFORMATION  CONTAINED OR INCORPORATED BY REFERENCE  HEREIN IS CORRECT AS OF ANY
TIME SUBSEQUENT TO THE DATE HEREOF.



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


                                TABLE OF CONTENTS

                                                                          PAGE
                                                                          ----

Available Information.......................................................2
Incorporation of Certain Documents
   by Reference.............................................................2
The Company.................................................................4
Risk Factors................................................................5
Use of Proceeds............................................................10
Selling Stockholders.......................................................11
Plan of Distribution.......................................................14
Description of Securities..................................................15
Legal Matters..............................................................16
Experts....................................................................16



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

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




                              SUNPHARM CORPORATION



                        1,498,916 SHARES OF COMMON STOCK




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


                                   PROSPECTUS

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






                                NOVEMBER 21, 1997



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

<PAGE>

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.          OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

         The following  table sets forth all expenses,  other than  underwriting
discounts and commissions, payable by the Registrant in connection with the sale
of the Common Stock being registered. All the amounts shown are estimates except
for the registration fee.


SEC registration fee........................................ $       100
Blue Sky fees and expenses..................................          --
Legal fees and expenses.....................................       5,000
Accounting fees and expenses................................       5,000
Miscellaneous fees and expenses.............................       4,900
                                                             -----------
         TOTAL                                               $    15,000
                                                             ===========



ITEM 15.          INDEMNIFICATION OF OFFICERS AND DIRECTORS

         Reference  is made to Article VII of the By-Laws of the Company  (filed
as Exhibit  3.2) to the  Company's  Annual  Report on Form 10-KSB for the fiscal
ended December 31, 1996 and to Section 145 of the Delaware  General  Corporation
Law, which, among other things and subject to certain conditions,  authorize the
Company  to  indemnify  each  of its  officers  and  directors  against  certain
liabilities and expenses incurred by such persons in connection with claims made
by reason of their being such officers or  directors.  Reference is further made
to the  Company's  1995  underwriting  agreement  (filed as Exhibit  1.1) to the
Registration  Statement  on Form SB-2 (No.  33-85416-A)  as filed on January 10,
1995, which contains provisions for the  indemnification of directors,  officers
and controlling persons of the Company under certain circumstances.

ITEM 16.          EXHIBITS


    Exhibit No.      Description
    -----------      -----------

       *5.1          Opinion of Andrews & Kurth L.L.P.
       *23.1         Consent of Deloitte & Touche LLP
       *23.2         Consent  of  Andrews & Kurth  L.L.P.  (included  in opinion
                     filed as Exhibit 5.1).
       *24.1         Power of Attorney (Included on signature page).

- --------------
         *Filed Herewith

ITEM 17.          UNDERTAKINGS

                  The undersigned Registrant hereby undertakes:

                  (a) To file,  during any  period in which  offers or sales are
         being made, a post-effective amendment to this Registration Statement;

                           (i) To include  any  prospectus  required  by Section
                  10(a)(3)  of the  Securities  Act of  1933,  as  amended  (the
                  "Securities Act");

                                      II-1

<PAGE>



                           (ii) To reflect in the prospectus any facts or events
                  arising after the effective date of the Registration Statement
                  (or the most recent  post-effective  amendment thereof) which,
                  individually  or in the  aggregate,  represent  a  fundamental
                  change  in the  information  set  forth  in  the  Registration
                  Statement;

                           (iii)  To  include  any  material   information  with
                  respect to the plan of distribution  not previously  disclosed
                  in this Registration  Statement or any material change to such
                  information in the Registration Statement.

                  Provided,  however,  that paragraphs (a)(i) and (a)(ii) do not
         apply if the  information  required to be included in a  post-effective
         amendment by those paragraphs is contained in periodic reports filed by
         the  Registrant  pursuant  to  Section  13  or  Section  15(d)  of  the
         Securities  and Exchange Act of 1934, as amended (the  "Exchange  Act")
         that are incorporated by reference in the Registration Statement.

                  (b) That, for the purpose of determining  any liability  under
         the Securities Act, each such post-effective  amendment shall be deemed
         to be a new registration  statement  relating to the securities offered
         therein,  and the  offering  of such  securities  at that time shall be
         deemed to be the initial bona fide offering thereof.

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

                  The  undersigned   Registrant   hereby  undertakes  that,  for
         purposes of determining  any liability  under the Securities  Act, each
         filing of the  Registrant's  annual report pursuant to section 13(a) or
         section 15(d) of the Exchange Act (and, where  applicable,  each filing
         of an employee  benefit plan's annual report  pursuant to section 15(d)
         of  the  Exchange  Act)  that  is  incorporated  by  reference  in  the
         Registration  Statement  shall  be  deemed  to  be a  new  registration
         statement relating to the securities offered therein,  and the offering
         of such  securities at that time shall be deemed to be the initial bona
         fide offering thereof.

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


                                      II-2
<PAGE>

                                   SIGNATURES

         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in the City of Jacksonville, State of Florida on November 20, 1997.

                           SUNPHARM CORPORATION

                           By: /s/ STEFAN BORG
                               ---------------------------------
                                   Stefan Borg
                                   PRESIDENT AND CHIEF EXECUTIVE OFFICER


         KNOW ALL PERSONS BY THESE  PRESENTS,  that each person whose  signature
appears  below  constitutes  and  appoints  Stefan  Borg  his  true  and  lawful
attorney-in-fact  and agent, with full power of substitution and  resubstitution
for him and in his name,  place,  and stead, in any and all capacities,  to sign
any  and  all   amendments   (including   post-effective   amendments)  to  this
Registration  Statement,  and to file the same, with all exhibits  thereto,  and
other  documents  in  connection  therewith,  with the  Securities  and Exchange
Commission,  granting  unto  said  attorney-in-fact  and  agent  full  power and
authority to do and perform each and every act and thing requisite and necessary
to be done in connection  therewith,  as fully to all intents and purposes as he
might or could do in  person,  hereby  ratifying  and  confirming  all that said
attorney-in-fact  and agent, or his  substitute,  may lawfully do or cause to be
done by virtue hereof.

         PURSUANT  TO THE  REQUIREMENTS  OF THE  SECURITIES  ACT OF  1933,  THIS
REGISTRATION  STATEMENT  HAS  BEEN  SIGNED  BY  THE  FOLLOWING  PERSONS  IN  THE
CAPACITIES AND ON THE DATES INDICATED.
<TABLE>
<CAPTION>


            SIGNATURE                                          TITLE                            DATE
            ---------                                          -----                            ----

<S>                                            <C>                                    <C>
  /S/ STEFAN BORG                              President, Director and Chief           November 20, 1997
  -------------------------------              Executive Officer (PRINCIPAL
      Stefan Borg                              EXECUTIVE AND ACCOUNTING OFFICER)

  /S/ PHILIP R. TRACY                          Chairman of the Board                   November 20, 1997
  -------------------------------              of Directors
      Philip R. Tracy                              

  /S/ CHARLES DIMMLER, III                     Director                                November 20, 1997
  -------------------------------              
      Charles Dimmler, III

  /S/ JERRY T. JACKSON                         Director                                November 20, 1997
  -------------------------------              
      Jerry T. Jackson

  /S/ ROBERT S. JANICKI                        Director                                November 20, 1997
  -------------------------------              
      Robert S. Janicki
                                               Director                                November __, 1997
  -------------------------------              
      Jacques F. Rejeange

  /S/ NORMAN H. LIPOFF                         Director                                November 20, 1997
  -------------------------------              
      Norman H. Lipoff

  /S/ ROBERT A. SCHOELLHORN                    Director                                November 20, 1997
  -------------------------------              
      Robert A. Schoellhorn

  /S/ GEORGE B. SCHWARTZ                       Director                                November 20, 1997
  -------------------------------              
      George B. Schwartz
</TABLE>


<PAGE>


                                INDEX TO EXHIBITS


     EXHIBIT NO.        DESCRIPTION
     -----------        -----------

         *5.1           Opinion of Andrews & Kurth L.L.P.
        *23.1           Consent of Deloitte & Touche LLP
        *23.2           Consent of Andrews & Kurth  L.L.P.  (included in opinion
                        filed as Exhibit 5.1).
        *24.1           Power of Attorney (included on signature page).

- ---------------------------
*   Filed herewith.







                                                                     Exhibit 5.1






                                November 20, 1997



Board of Directors
SunPharm Corporation
4651 Salisbury Road, Suite 205
Jacksonville, Florida 32256

Gentlemen:

             We have acted as counsel to SunPharm Corporation (the "Company") in
connection  with  the  Company's   Registration   Statement  on  Form  S-3  (the
"Registration  Statement") relating to the registration under the Securities Act
of 1993, as amended (the "Securities Act"), of the offer and sale by the Selling
Stockholders  identified in the Registration Statement of up to 56,920 shares of
the Common Stock, par value $.001 per share ("Common Stock"), of the Company are
issuable upon the exercise of certain  outstanding options (the "Option Shares")
and up to 2,000  shares of Common  Stock  issuable  upon the exercise of certain
outstanding warrants ("Warrant Shares").

             As the  basis  for  the  opinions  hereinafter  expressed,  we have
examined  such   statutes,   regulations,   corporate   records  and  documents,
certificates of corporate and public officials, and other instruments as we have
deemed  necessary  or  advisable.  In  such  examination  we  have  assumed  the
authenticity  of all documents  submitted to us as originals and the  conformity
with the original documents of all documents submitted to us as copies.

             Based on the foregoing and on such legal  considerations as we deem
relevant,  we are of the opinion that the Option Shares and Warrant  Shares have
been duly and validly  authorized,  and when  issued  upon the  exercise of such
options  and  warrants in  accordance  with the terms  thereof,  will be validly
issued, fully paid and nonassessable.

             We hereby  consent to the use of this  opinion as an exhibit to the
Registration  Statement  and  reference  to our firm  under the  caption  "Legal
Matters" in the Prospectus included therein.

                                            Very truly yours,


                                            /s/ ANDREWS & KURTH L.L.P.
                                            -----------------------------
                                                Andrews & Kurth L.L.P.





                                                                    Exhibit 23.1


                          INDEPENDENT AUDITORS' CONSENT

         We consent  to the  incorporation  by  reference  in this  Registration
Statement  of SunPharm  Corporation  (the  "Company")  on Form S-3 of our report
dated March 14, 1997 (which report expresses an unqualified opinion and includes
an explanatory  paragraph  referring to recurring losses incurred by the Company
from inception and to an uncertainty surrounding the Company's ability to obtain
sufficient  financing in 1997 which raises substantial doubt about the Company's
ability to continue as a going concern),  appearing in the Annual Report on Form
10-KSB of SunPharm  Corporation for the year ended December 31, 1996, and to the
reference to us under the heading  "Experts" in the Prospectus,  which is a part
of this Registration Statement.



DELOITTE & TOUCHE LLP
Jacksonville, Florida

November 20, 1997



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