HEMISPHERX BIOPHARMA INC
DEFR14A, 1999-05-26
DRUGS, PROPRIETARIES & DRUGGISTS' SUNDRIES
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                           HEMISPHERX BIOPHARMA, INC.
                               1617 JFK Boulevard
                        Philadelphia, Pennsylvania 19103

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

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                           TO BE HELD ON JULY 14, 1999

To the Stockholders of Hemispherx Biopharma, Inc.:

      You are cordially  invited to attend the Annual Meeting of Stockholders of
Hemispherx Biopharma,  Inc. ("Company"),  a Delaware corporation,  to be held at
The Embassy Suites, 1776 Ben Franklin Parkway,  Philadelphia,  Pennsylvania,  on
Wednesday, July 14, 1999, at 10:00 a.m. local time, for the following purposes:

            1. To elect four members to the Board of Directors of the Company to
      serve until their respective successors are elected and qualified;

            2. To ratify the  selection by the Company of KPMG LLP,  independent
      public accountants,  to audit the financial  statements of the Company for
      the year ending December 31, 1999; and

            3. To transact  such other  matters as may properly  come before the
      meeting or any  adjournment  thereof.

      Only  stockholders  of  record at the close of  business  on May 17,  1999
("Record Date"), are entitled to notice of and to vote at the meeting.

      A proxy  statement and proxy are enclosed  herewith.  If you are unable to
attend the meeting in person you are urged to sign, date and return the enclosed
proxy promptly in the enclosed  addressed  envelope which requires no postage if
mailed within the United  States.  If you attend the meeting in person,  you may
withdraw  your  proxy  and vote  your  shares.  Also  enclosed  herewith  is the
Company's  Annual  Report on Form 10-K for the fiscal  year ended  December  31,
1998.

                                              By Order of the Board
                                              of Directors

                                              s\Ransom W. Etheridge, Secretary

Philadelphia, Pennsylvania
May 19, 1999

<PAGE>

PROXY STATEMENT

                           HEMISPHERX BIOPHARMA, INC.
                               1617 JFK Boulevard
                        Philadelphia, Pennsylvania 19103

                                  INTRODUCTION

      This proxy statement is furnished in connection  with the  solicitation of
proxies for use at the annual  meeting  ("Annual  Meeting") of  stockholders  of
Hemispherx Biopharma, Inc. ("Company"),  to be held on Wednesday, July 14, 1999,
and at any  adjournments  thereof.  The  accompanying  proxy is solicited by the
Board of  Directors  of the  Company  and is  revocable  by the  stockholder  by
notifying the Company's  secretary at any time before it is voted,  or by voting
in person at the Annual  Meeting.  This proxy statement and  accompanying  proxy
will be  distributed  to  stockholders  beginning on or about May 25, 1999.  The
principal  executive  offices of the Company are located at 1617 JFK  Boulevard,
Philadelphia, Pennsylvania 19103, telephone (215) 988-0080.

                      OUTSTANDING SHARES AND VOTING RIGHTS

      Only  stockholders of record at the close of business on May 17, 1999, are
entitled  to receive  notice of, and vote at the Annual  Meeting.  As of May 17,
1999,  the number and class of stock  outstanding  and  entitled  to vote at the
meeting  was  26,403,564  shares of  common  stock,  par  value  $.001 per share
("Common  Stock").  Each share of Common  Stock is  entitled  to one vote on all
matters.  No other class of securities  will be entitled to vote at the meeting.
There are no cumulative voting rights.

      The nominees  receiving the highest number of votes cast by the holders of
Common  Stock will be elected as the  Company's  directors  and  constitute  the
entire Board of Directors of the  Company.  The  affirmative  vote of at least a
majority of the shares  represented  and voting at the Annual Meeting at which a
quorum is present (which shares voting  affirmatively also constitute at least a
majority of the required  quorum) is necessary for approval of Proposal No. 2. A
quorum is representation in person or by proxy at the Annual Meeting of at least
one-half of the outstanding shares of the Company.

<PAGE>

                            PROPOSALS TO SHAREHOLDERS

                                 PROPOSAL NO. 1

                              ELECTION OF DIRECTORS

      Each  nominee to the Board of  Directors  will serve until the next Annual
Meeting of stockholders, or until his earlier resignation,  removal from office,
death or incapacity.

      Unless otherwise  specified,  the enclosed proxy will be voted in favor of
the election of William A. Carter,  Richard C. Piani,  Ransom W.  Etheridge  and
William  M.  Mitchell.  Information  is  furnished  below  with  respect  to all
nominees.

      The  following  information  with respect to the  principal  occupation or
employment of the nominees,  the name and principal  business of the corporation
or other  organization  in which such occupation or employment is carried on and
other  affiliations and business  experience during the past five years has been
furnished to the Company by the respective nominees:

WILLIAM A. CARTER,  M.D.,  the  co-inventor  of Ampligen,  joined the Company in
1978,  and has served as (a) the Company's  Chief  Scientific  Officer since May
1989,  (b) the Chairman of the Company's  Board of Directors  since January 1992
(c) the Company's  Chief  Executive  Officer since July 1993,  (d) the Company's
President  since April,  1995, and (e) a director since 1987. From 1987 to 1988,
Dr. Carter served as the Company's  Chairman.  Dr.Carter was a leading innovator
in the  development of human  interferon for a variety of treatment  indications
including  various viral diseases and cancer.  In this context,  he received the
first FDA  approval to initiate  clinical  trials on a beta  interferon  product
manufactured in the U.S. under his  supervision.  From 1985 to October 1988, Dr.
Carter served as the Company's Chief Executive  Officer and Chief Scientist.  He
received his M.D.  degree from Duke  University and underwent his  post-doctoral
training at the National Institutes of Health and Johns Hopkins University.  Dr.
Carter also  served as  Professor  of  Neoplastic  Diseases at Hahneman  Medical
University,  a position he held from 1980 to 1998. He also served as Director of
Clinical  Research for Hahneman  Medical  University's  Institute for Cancer and
Blood  Diseases,  and as a professor at Johns Hopkins School of Medicine and the
State University of New York at Buffalo.  He is a Board certified  physician and
author of more than 200  scientific  articles,  including the editing of various
textbooks on anti-viral and immune therapy.

RICHARD C. PIANI serves as director of the Company since May 1995. Mr. Piani has
been  employed as a principal  delegate  for Industry to the City of Science and
Industry,  Paris,  France, a billion dollar  scientific and educational  complex
since 1995. Mr. Piani provided  consulting to the Company in 1993,  with respect
to  general  business  strategies  for the  Company's  European  operations  and
markets.  He served as Chairman of  Industrielle du  Batiment-Morin,  a building
materials  corporation,  from  1986 to  1993.  Previously  he was  Professor  of
International Strategy at Paris Dauphine University from 1984 to 1993. From 1979
to 1985 Mr.  Piani  served as Group


                                       2
<PAGE>

Director in Charge of International and Commercial Affairs for Rhone-Poulenc and
from 1973 to 1979 was  Chairman  and Chief  Executive  Officer  of  Societe  "La
Cellophane",  the French  company which  invented  cellophane  and several other
worldwide  products.  Mr. Piani has a Law degree from  Facilite de Droit,  Paris
Sorbonne  and a Business  Administration  degree  from  Ecola des Hautes  Etudes
Commerciales, Paris.

RANSOM W.  ETHERIDGE was elected a director of the Company in October 1997,  and
presently serves as Secretary.  Mr.  Etheridge first became  associated with the
Company  in  1980  when he  provided  consulting  services  to the  Company  and
participated  in  negotiations  with respect to the  Company's  initial  private
placement through Oppenheimer & Co., Inc. He has been practicing law since 1967,
specializing  in corporate law. Mr.  Etheridge is a member of the Virginia State
Bar, a Judicial  Remedies  Award  Scholar  and has  served as  President  of the
Tidewater Arthritis Foundation. He is a graduate of Duke University, the Wharton
School Business Real Estate Investment  Analysis Seminar,  and the University of
Richmond School of Law.

WILLIAM M. MITCHELL, M.D. was elected a director of the Company in July 1998. He
is a Professor of Pathology at  Vanderbilt  University  School of Medicine.  Dr.
Mitchell earned a Ph.D. from Johns Hopkins  University  where he later worked as
an intern in its  hospital,  followed by a Fellowship at its School of Medicine.
Dr. Mitchell has published over 200 papers,  reviews and abstracts  dealing with
viruses  and  anti-viral  drugs.  He has worked  for and with many  professional
societies,  including the  International  Society for Interferon  Research,  and
committees,  among them the  National  Institutes  of Health,  AIDS and  Related
Research  Review  Group.  Dr.  Mitchell  previously  served as a director of the
Company from 1987 to 1989.

THE BOARD OF DIRECTORS  DEEMS  PROPOSAL NO. 1 TO BE IN THE BEST INTERESTS OF THE
COMPANY  AND ITS  STOCKHOLDERS  AND  RECOMMENDS  A VOTE  "FOR"  ALL  FOUR OF THE
ABOVE-NAMED  NOMINEE  DIRECTORS OF THE  COMPANY.

                     INFORMATION CONCERNING BOARD MEETINGS

      The  Company's  Board of  Directors  met  three  times,  the  Compensation
Committee met once, the Audit  Committee met twice,  and the Strategic  Planning
Committee  met once during the fiscal year ended  December 31, 1998.  All of the
incumbent Directors attended at least 75% of such meetings.

                 INFORMATION CONCERNING COMMITTEES OF THE BOARD

         The Board of Directors maintains an Executive  Committee  consisting of
William A.  Carter and  Ransom W.  Etheridge,  which  makes  recommendations  to
management  regarding  general business  matters of the Company;  a Compensation
Committee  consisting of Ransom W.  Etheridge and Richard C. Piani,  which makes
recommendations  concerning  salaries  and  compensation  for  employees  of and
consultants  to  the  Company;  an  Audit  Committee  consisting  of  Ransom  W.


                                       3
<PAGE>

Etheridge,  William  Mitchell and Richard  Piani,  which reviews the results and
scope of the audit and other services  provided by independent  auditors;  and a
Strategic  Planning  Committee  consisting  of William A.  Carter and Richard C.
Piani, which makes recommendations to the Board of priorities in the application
of the Company's financial assets and human resources in the fields of research,
marketing  and  manufacturing.  The Strategic  Planning  Committee has engaged a
number  of   leading   consultants   in   healthcare,   drug   development   and
pharmaeconomics  to assist in the analysis of various  products being  developed
and/or potential acquisitions being considered by the Company.


                                       4
<PAGE>

                                   MANAGEMENT

      The current executive  officers and directors of the Company are set forth
below:

         Name              Age      Position
         ----              ---      --------
William A. Carter, M.D.    61       Chairman of the Board of Directors, Chief
                                    Executive Officer and President

Robert E. Peterson         62       Chief Financial Officer

Richard C. Piani           72       Director

Ransom W. Etheridge        60       Director and Secretary

William M. Mitchell, M.D.  64       Director

Harris Freedman            65       Vice President, Corporate Communications

Sharon D. Will             40       Vice President, Investor Relations

Josephine M. Dolhancryk    36       Treasurer, Assistant Secretary

David R. Strayer, M.D.     53       Medical Director, Director of Regulatory
                                    Affairs

Carol A. Smith, Ph.D.      47       Director of Manufacturing and Process
                                    Development

      WILLIAM A. CARTER,  M.D., the co-inventor of Ampligen,  joined the Company
in 1978, and has served as (a) the Company's Chief Scientific  Officer since May
1989,  (b) the Chairman of the Company's  Board of Directors  since January 1992
(c) the Company's  Chief  Executive  Officer since July 1993,  (d) the Company's
President  since April,  1995, and (e) a director since 1987. From 1987 to 1988,
Dr. Carter served as the Company's Chairman.  Dr. Carter was a leading innovator
in the  development of human  interferon for a variety of treatment  indications
including  various viral diseases and cancer.  In this context,  he received the
first FDA  approval to initiate  clinical  trials on a beta  interferon  product
manufactured in the U.S. under his  supervision.  From 1985 to October 1988, Dr.
Carter served as the Company's Chief Executive  Officer and Chief Scientist.  He
received his M.D.  degree from Duke  University and underwent his  post-doctoral
training at the National Institutes of Health and Johns Hopkins University.  Dr.
Carter also  served as  Professor  of  Neoplastic  Diseases at Hahneman  Medical
University,  a position he held from 1980 to 1998. He also served as Director of
Clinical Research for Hahneman


                                       5
<PAGE>

Medical University's Institute for Cancer and Blood Diseases, and as a professor
at Johns  Hopkins  School of Medicine  and the State  University  of New York at
Buffalo.  He is a  Board  certified  physician  and  author  of  more  than  200
scientific  articles,  including the editing of various  textbooks on anti-viral
and immune therapy.

      ROBERT E.  PETERSON has served as Chief  Financial  Officer of the Company
since April 1993 and served as an independent  financial  advisor to the Company
from  1989 to April  1993.  Mr.  Peterson  has also  served  since  1990 as Vice
President of the Omni Group,  Inc., a business  consulting group based in Tulsa,
Oklahoma. During the period 1983 through 1992, Mr. Peterson was self-employed as
a financial  consultant to businesses in various  industries.  Mr.  Peterson was
Vice President and Chief Financial Officer of Pepsico Foods  International  from
1979 to 1983 and  responsible  for financial  management  of this  multinational
operating unit with approximately $500 million in annual revenues.  Mr. Peterson
is a graduate of Eastern New Mexico University.

      RICHARD C. PIANI has served as a director of the  Company  since May 1995.
Mr. Piani has been employed as a principal  delegate for Industry to the City of
Science and Industry, Paris, France, a billion dollar scientific and educational
complex since 1995. Mr. Piani provided  consulting to the Company in 1993,  with
respect to general business strategies for the Company's European operations and
markets.  He served as Chairman of  Industrielle du  Batiment-Morin,  a building
materials  corporation,  from  1986 to  1993.  Previously  he was  Professor  of
International Strategy at Paris Dauphine University from 1984 to 1993. From 1979
to 1985 Mr.  Piani  served as Group  Director  in Charge  of  International  and
Commercial  Affairs for  Rhone-Poulenc  and from 1973 to 1979 was  Chairman  and
Chief  Executive  Officer of Societe "La  Cellophane",  the French company which
invented  cellophane and several other worldwide  products.  Mr. Piani has a Law
degree from  Facilite de Droit,  Paris  Sorbonne  and a Business  Administration
degree from Ecola des Hautes Etudes Commerciales, Paris.

      RANSOM W.  ETHERIDGE was elected a director of the Company in October 1997
and serves as Secretary.  Mr. Etheridge first became associated with the Company
in 1980 when he provided  consulting services to the Company and participated in
negotiations  with respect to the Company's  initial private  placement  through
Oppenheimer & Co., Inc. He has been  practicing law since 1967,  specializing in
corporate  law. Mr.  Etheridge is a member of the Virginia State Bar, a Judicial
Remedies  Award Scholar and has served as President of the  Tidewater  Arthritis
Foundation.  He is a graduate of Duke  University,  the Wharton School  Business
Real Estate Investment  Analysis Seminar,  and the University of Richmond School
of Law.

      WILLIAM M.  MITCHELL,  M.D.  was elected a director of the Company in July
1998.  He is a  Professor  of  Pathology  at  Vanderbilt  University  School  of
Medicine.  Dr. Mitchell earned a Ph.D.  from Johns Hopkins  University  where he
later  worked as an intern in its  hospital,  followed  by a  Fellowship  at its
School of Medicine.  Dr.  Mitchell has  published  over 200 papers,  reviews and
abstracts  dealing with viruses and anti-viral drugs. He has worked for and with
many professional societies,  including the International Society for Interferon
Research, and committees,


                                       6
<PAGE>

among them the National  Institutes of Health,  AIDS and Related Research Review
Group. Dr. Mitchell  previously served as a director of the Company from 1987 to
1989.

      DAVID R. STRAYER,  M.D., who previously served as Professor of Medicine at
Medical College of Pennsylvania and Allegheny University of the Health Sciences,
has  acted as the  Medical  Director  of the  Company  since  1986.  He is Board
Certified in Medical Oncology and Internal  Medicine with research  interests in
the fields of cancer and immune  system  disorders.  Dr.  Strayer  has served as
principal investigator in studies funded by the Leukemia Society of America, the
American  Cancer  Society,  and the National  Institutes of Health.  Dr. Strayer
attended the School of Medicine at the  University  of California at Los Angeles
where he received his M.D. in 1972.

      CAROL  A.  SMITH,   Ph.D.   has  served  as  the  Company's   Director  of
Manufacturing  and  Process   Development  since  April  1995,  as  Director  of
Operations  since 1993 and as the Manager of Quality  Control from 1991 to 1993,
with responsibility for the manufacture,  control and chemistry of Ampligen. Dr.
Smith  has  also  been   Scientist/Quality   Assurance   Officer  for   Virotech
International,  Inc. from 1989 to 1991 and Director of the Reverse Transcriptase
and Interferon  Laboratories and a Clinical Monitor for Life Sciences, Inc. from
1983 to 1989.  She  received  her Ph.D.  from the  University  of South  Florida
College  of  Medicine  in  1980  and  was an  NIH  post-doctoral  fellow  at the
Pennsylvania State University College of Medicine.

      JOSEPHINE M. DOLHANCRYK joined the Company in 1990 as Office Manager,  was
promoted to Executive Assistant to the Chairman of the Board and Chief Executive
Officer in 1991 and Assistant Secretary,  Treasurer and Executive  Administrator
in 1995.  From 1989 to 1990 Ms.  Dolhancryk  was  President of  Medical/Business
Enterprises.  Ms. Dolhancryk was employed by Children's Hospital of Philadelphia
from 1984 to 1989, where she also served as research coordinator on a drug study
from  1986 to 1988.  Ms.  Dolhancryk  attended  Saint  Joseph's  University  and
Delaware County College.

      HARRIS FREEDMAN has served as Vice President for Strategic Alliances since
August 1994 and has been a private  venture  capitalist and business  consultant
for more than the past five years. He is the Secretary of Bridge Ventures,  Inc.
and SMACS Holding Corp.,  both of which are private venture  capital  companies,
positions  he has held for more than five years.  His  business  experience  has
encompassed developing significant business contacts and acting as an officer or
consultant  of  several  companies  in  the  pharmaceutical,   health  care  and
telecommunication  industries.  From July 1996 to January 1999, Mr. Freedman was
Vice President of Amplidyne, Inc. Mr. Freedman attended New York University from
1951 to 1954.


      SHARON D. WILL has been Vice President for Corporate  Communications since
November  1994.  Since 1995 she has been  President of SAGGI Capital  Corp.,  an
investor  relations firm  representing  public companies in the  pharmaceutical,
health  care  and  financial  software  industry.  She  was a  registered  sales
representative  and Senior Vice President for  Institutional  Sales at Westfield
Financial  Corporation from September 1994 to October 1994. From October 1993 to
July 1994 she served as a registered sales representative at Seaboard Securities
Corp.



                                       7
<PAGE>


She attended  Baylor  College as an  undergraduate  for two years with a primary
focus on chemistry.



                                       8
<PAGE>

                             EXECUTIVE COMPENSATION
                           SUMMARY COMPENSATION TABLE
<TABLE>
<CAPTION>
Name and                                              Other Annual        Restricted Stock   Options    All Other
Principal Position              Year     Salary($)    Compensation($)(1)  Awards($)           Awards    Compensation($)(2)
- ------------------              ----     ---------    ------------------  ----------------    ------    ------------------
<S>                             <C>     <C>                <C>            <C>               <C>             <C>
William A. Carter               1998    $438,780(3)            --           --              830,000(4)      19,183
  Chairman of the Board         1997     427,504(3)        13,683           --                      --      11,387
  and CEO                       1996     400,522(3)            --           --              300,000(5)      10,580

Robert E. Peterson(6)           1998     132,000               --           --              100,000(7)          --
  Chief Financial Officer       1997     132,000               --           --               13,750(8)          --
                                1996     128,000               --           --               50,000(9)          --

Sharon Will                     1998     132,000               --           --               20,000(10)         --
  Vice President                1997     132,000               --           --                   --             --
                                1996     126,000               --           --               50,000(5)          --

David R. Strayer, M.D.          1998     193,544(12)           --           --               50,000(11)         --
  Medical Director              1997     171,926(13)           --           --               20,000(8)          --
                                1996     130,427(14)           --           --                   --             --

Harris Freedman                 1998     132,000               --           --               80,000(15)         --
  Vice President                1997     132,000               --           --                   --             --
                                1996     126,000               --           --              150,000(5)          --
</TABLE>

(1)   The Company makes available certain non-monetary  benefits to its officers
      with  a  view  to  attracting  and  retaining   qualified   personnel  and
      facilitating  job performance.  The Company  considers such benefits to be
      ordinary and incidental  business costs and expenses.  The aggregate value
      of such benefits,  which cannot be precisely ascertained but which is less
      than 10% of the cash  compensation  of each of the  above-named  executive
      officers, is not included in the table.

(2)   Consists of  insurance  premiums  paid by the Company with respect to term
      life insurance for the benefit of the named executive officer.


                                       9
<PAGE>

(3)   Includes funds paid to Dr. Carter by Hahneman Medical  University where he
      serves as a professor.  This compensation totaled $79,826 in each of 1998,
      1997 and $63,000 in 1996. Does not include a bonus of $90,397  approved by
      the board of directors in December 1998 and paid in 1999.

(4)   Represents  warrants to purchase  Common  Stock and  includes  (i) 360,000
      warrants exercisable at $4.00 per share; (ii) 170,000 warrants exercisable
      at $5.00 per share;  and (iii) 300,000  warrants  exercisable at $6.00 per
      share.

(5)   Represents  stock  options  to  purchase  shares  of the  common  stock of
      BioAegean  Corp., a wholly owned  subsidiary of the Company,  at $1.00 per
      share.

(6)   Mr. Peterson is paid on a fee basis.

(7)   Represents  warrants to purchase  100,000  shares of Common Stock at $5.00
      per share.

(8)   Represents  stock options to purchase  shares of common stock at $3.50 per
      share. These options vest over a four year period.

(9)   Represents warrants to purchase 50,000 shares of Common Stock at $3.50 per
      share.

(10)  Represents warrants to purchase 20,000 shares of Common Stock at $3.00 per
      share.

(11)  Represents warrants to purchase 50,000 shares of Common Stock at $4.00 per
      share.

(12)  Includes $98,926 paid by Hahneman Medical University.


(13)  Includes $98,926  paid by  Hahneman  Medical  University  and  $23,000  of
      deferred compensation from prior years.


(14)  Includes $80,427 paid by Hahneman Medical University.

(15)  Represents warrants to purchase 80,000 shares of Common Stock at $4.00 per
      share.


                                       10
<PAGE>

      Year End Option Table. The following table sets forth certain  information
regarding  the stock  options  held as of December  31, 1998 by the  individuals
named in the above Summary Compensation Table.

                 AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR
                        AND FISCAL YEAR-END OPTION VALUE

<TABLE>
<CAPTION>
                                                                  Securities Underlying              Value of Unexercised
                                                                 Unexercised Options at             In-the-Money-Options
                                                                 ----------------------             --------------------
                        Shares Acquired      Value                Fiscal Year End(#)               At Fiscal Year End($)(1)
 Name                   on Exercise (#)      Realized ($)     Exercisable    Unexercisable       Exercisable       Unexercisable
- -----                   ---------------      ------------     -----------    -------------       -----------       -------------
<S>                          <C>                <C>          <C>            <C>                  <C>               <C>

William A. Carter            --                  --           1,958,728(2)   1,110,000(3)         7,227,861         1,457,500
Robert E. Peterson           --                  --             167,262(4)      60,312(5)           381,989            33,514
Sharon Will                  --                  --             645,000(6)     250,000(7)         2,691,250           295,000
Harris Freedman              --                  --             888,160(8)     230,000(9)         3,422,270           220,000
David Strayer                --                  --              55,000(10)     15,000(11)          153,750            48,750

</TABLE>

- ----------

(1)   Computation  based on $6.75,  the December 31, 1998 closing  price for the
      Common Stock on the American Stock Exchange. There is no established value
      for the BioAegean warrants.

(2)   Represents  (i)  1,400,000  currently  exercisable  Rule 701  Warrants  to
      purchase  Common Stock at $3.50 per share;  (ii) 73,728  stock  options to
      purchase  Common  Stock at $2.71 per share;  (iii)  warrants  to  purchase
      465,000  shares of Common Stock at $1.75 per share;  and (iv)  warrants to
      purchase 20,000 shares of Common Stock at $4.00 per share.

(3)   Represents  (i) stock  options to  purchase  300,000  shares of the common
      stock of BioAegean  Corp.,  a wholly owned  subsidiary of the Company,  at
      $1.00 per share;  and (ii) warrants to purchase  810,000  shares of Common
      Stock at a weighted average price of $4.95 per share.


(4)   Represents  (i) 17,262 stock  options  exercisable  at an average price of
      $4.17 per share;  (ii) 50,000  warrants to purchase  Common Stock at $3.50
      per share;  and (iii) 100,000  warrants to purchase  Common Stock at $5.00
      per share.


                                       11
<PAGE>

(5)   Represents (i) stock options to purchase 50,000 shares of the common stock
      of BioAegean Corp., a wholly owned subsidiary of the Company, at $1.00 per
      share; and (ii) stock options to purchase 10,312 shares of Common Stock at
      $3.50 per share.

(6)   Represents (i) 200,000 currently exercisable Rule 701 warrants exercisable
      at $3.50 per share;  (ii)  340,000  warrants to purchase  Common  Stock at
      $1.75 per share;  and (iii) 105,000  warrants to purchase  Common Stock at
      $3.50 per share.

(7)   Represents  (i) stock  options to  purchase  150,000  shares of the common
      stock of  BioAegean  Corp.,  a wholly owned  subsidiary  of the Company at
      $1.00 per share;  and (ii) 100,000  warrants to purchase Common Stock at a
      weighted average price of $3.80 per share.

(8)   Represents  (i) 400,000 Rule 701 warrants  exercisable at $3.50 per share;
      (ii) 97,160  warrants to purchase  common stock at $3.50 per share;  (iii)
      325,000  warrants to purchase  Common  Stock at $1.75 per share;  and (iv)
      66,000 Class A Warrants to purchase Common Stock at $4.00 per share.


(9)   Represents  (i) stock  options to  purchase  150,000  shares of the common
      stock of BioAegean  Corp.,  a wholly owned  subsidiary of the Company,  at
      $1.00 per share;  and (ii)  warrants to purchase  80,000  shares of Common
      Stock at $4.00 per share.


(10)  Represents  (i) 5,000 stock options  exercisable  at $3.50 per share;  and
      (ii) 50,000 warrants to purchase Common Stock at $4.00 per share.

(11)  Represents  stock  options to purchase  15,000  shares of Common  Stock at
      $3.50 per share.


                                       12
<PAGE>

Employment Agreements

      The Company entered into an amended and restated employment agreement with
Dr.  William A.  Carter,  dated as of December 3, 1998,  which  provided for his
employment  until May 8, 2004 at an  initial  base  annual  salary of  $361,586,
subject to annual  cost of living  increases.  In  addition,  Dr.  Carter  could
receive an annual performance bonus of up to 25% of his base salary, at the sole
discretion of the Board of Directors.  Dr.  Carter will not  participate  in any
discussions  concerning the  determination of his annual bonus.  Pursuant to the
agreement,  Dr.  Carter is also  entitled to an  incentive  bonus of 0.5% of the
gross  proceeds  received by the  Company  from any joint  venture or  corporate
partnering  arrangement,  up to an aggregate maximum incentive bonus of $250,000
for all such transactions. Dr. Carter's agreement also provided that he would be
paid his base  salary  and  benefits  through  May 8,  2004 if he is  terminated
without  "cause",  as that term is defined  in the  agreement.  Pursuant  to his
original agreement, as amended on August 8, 1991, Dr. Carter was granted options
to purchase 73,728 shares of the Company's  Common Stock at an exercise price of
$2.71 per share. The agreement is  automatically  renewed for successive one (1)
year periods  unless written notice of refusal to renew is given by one party to
the other at least 90 days prior to the expiration of the renewal period.

      The Company  entered into an employment  agreement with Robert E. Peterson
dated April 15, 1998  providing for Mr.  Peterson's  employment as the Company's
Chief  Financial  Officer  until  December  31, 2000 at an annual base salary of
$132,000 per year, subject to annual cost of living increase.  In addition,  Mr.
Peterson  shall  receive  bonus  compensation  upon the FDA approval of Ampligen
based on the number of years of his  employment by the Company up to the date of
such approval. Mr. Peterson also received 100,000 warrants to purchase shares of
Common Stock with an exercise price of $5.00.

      The  Company  entered  into  an  employment  agreement  with  Sharon  Will
providing for her employment as Vice President for Corporate  Communications and
Investor  Relations on November 1, 1994. The agreement  provides for Ms. Will to
be employed  for a one-year  term for a base salary of $120,000 and provides for
termination of the agreement upon certain circumstances including termination by
the  Company or Ms.  Will on 14 days  written  notice or the sale of Ms.  Will's
stock in the Company.  Pursuant to the agreement,  Ms. Will was granted Rule 701
Warrants to purchase  200,000 shares of Common Stock of the Company at $3.50 per
share. Ms. Will's  agreement  provides that she shall devote 60% of her business
time,  attention and energies to the Company during regular  business  hours. In
the event that Ms. Will's  employment  is  terminated  for any reason other than
breach  of  contract,  she shall be  entitled  to  receive  accrued  and  unpaid
compensation  plus an additional three months'  compensation.  In 1996, the base
salary was  increased to $132,000  per year.  In January  1998,  the term of Ms.
Will's employment agreement was extended for an additional three years.

      The Company  entered into an  employment  agreement  with Harris  Freedman
providing  for  Mr.  Freedman's  employment  as  Vice  President  for  Strategic
Alliances  on August 1, 1994.  The  agreement  provides  for Mr.  Freedman to be
employed  for a one year term for a base salary of


                                       13
<PAGE>

$120,000  and  provides  for   termination   of  the   agreement   upon  certain
circumstances  including  termination by the Company or Mr.  Freedman on 14 days
written notice or the sale of Mr.  Freedman's stock in the Company.  Pursuant to
the agreement,  Mr.  Freedman was granted Rule 701 Warrants to purchase  400,000
shares  of  Common  Stock of the  Company  at $3.50 per  share.  Mr.  Freedman's
agreement provides that he shall devote 30% of his business time,  attention and
energies to the Company during  regular  business  hours.  In the event that Mr.
Freedman's  employment  is  terminated  for any  reason  other  than  breach  of
contract,  he shall be entitled to receive accrued and unpaid  compensation plus
an additional three months' compensation. In 1996, the base salary was increased
to $132,000.  In January 1998, the term of Mr. Freedman's  employment  agreement
was extended for an additional three years.

Compensation of Directors

      During the year ended  December  31,  1998,  each  non-employee  directors
received $1,250 per month as compensation  for serving on the Board of Directors
or any committee thereof. All of the directors are reimbursed for their expenses
incurred in  attending  meetings of the Board of Directors  and its  committees.
Non-management  directors receive an annual retainer of $15,000 and will receive
$600 for each Board or committee  meeting they attend and will be reimbursed for
out of pocket  expenses  incurred in attending  meetings.  Certain  non-employee
directors  receive  compensation  as  consultants  to the  Company and have been
granted  options to purchase  Common Stock under the Company's 1990 Stock Option
Plan and Rule 701 Warrants to purchase Common Stock of the Company.  The Company
believes  such  payments  are  necessary in order for the Company to attract and
retain qualified outside directors.

1992 Stock Option Plan

      The Company's 1992 Stock Option Plan ("1992 Plan"), provides for the grant
of options for the  purchase of up to an  aggregate  of 92,160  shares of Common
Stock to the  Company's  employees,  directors,  consultants  and  others  whose
efforts  are  important  to the  success  of  the  Company.  The  1992  Plan  is
administered by the Compensation Committee of the Board of Directors,  which has
complete  discretion  to select  the  eligible  individuals  to  receive  and to
establish the terms of option grants. The 1992 Plan provides for the issuance of
either non-qualified options or incentive stock options, provided that incentive
stock  options  must be  granted  with an  exercise  price of not less than fair
market value at the time of grant and that  non-qualified  stock options may not
be granted  with an exercise  price of less than 50% of the fair market value at
the time of grant.  The  number of shares of Common  Stock  available  for grant
under the 1992 Plan is subject to adjustment for changes in  capitalization.  To
date, no options have been granted under the 1992 Plan.

1990 Stock Option Plan

      The Company's 1990 Stock Option Plan, as amended  ("1990 Plan"),  provides
for the grant of options to  employees,  directors,  officers,  consultants  and
advisors of the Company for the


                                       14
<PAGE>


purchase of up to an aggregate of 460,798  shares of Common  Stock.  The plan is
administered by the Compensation Committee of the Board of Directors,  which has
complete  discretion to select eligible  individuals to receive and to establish
the terms of option grants.  The number of shares of Common Stock  available for
grant   under  the  1990  Plan  is  subject  to   adjustment   for   changes  in
capitalization.  As of December  31,  1998,  options to acquire an  aggregate of
135,164  shares of the Common  Stock were  available  for grants  under the 1990
Plan.


401(K) Plan

      In December 1995,  the Company  established a defined  contribution  plan,
effective  January 1, 1995, the Hemispherx  Biopharma  employees 401(K) Plan and
Trust Agreement (the "401(K) Plan").  All full time employees of the company are
eligible to  participate  in the 401(K) Plan  following one year of  employment.
Subject to certain  limitations  imposed by federal tax laws,  participants  are
eligible to  contribute  up to 15% of their  salary  (including  bonuses  and/or
commissions  per annum.  Participants'  contributions  to the 401(K) Plan may be
matched by the Company at a rate determined  annually by the Board of Directors.
Each participant  immediately vests in his or her deferred salary contributions,
while  Company  contributions  will  vest  over one  year.  In 1998 the  Company
provided matching  contributions to each employee for up to 6% of annual pay for
a total of $36,958 for all employees.

Compensation Committee Interlocks and Insider Participation

      During the  fiscal  year  ended  December  31,  1998,  the  members of the
Company's Compensation Committee were Ransom W. Etheridge and Richard Piani. Mr.
Etheridge is an attorney in private  practice and has rendered legal services to
the Company for which he received a fee.


                                       15
<PAGE>

                          Total Return of Shareholder's
                         (Dividends reinvested monthly)

                                         ANNUAL RETURN PERCENTAGE
                                               Years Ending

Company Name/Index                  Dec95     Dec96    Dec97      Dec98
- -----------------------------------------------------------------------
HEMISPHERX BIOPHARMA INC.          -37.43      2.74    80.53      69.25
S&P SMALLCAP 600 INDEX               4.13     21.32    25.58      -1.31
PEER GROUP                          51.42     -3.97    19.49       6.85

                                             INDEXED RETURNS
                                               Years Ending
                                    Base
                                    Period
Company Name/Index                  2Nov95   Dec95    Dec96    Dec97     Dec98
- --------------------------------------------------------------------------------
HEMISPHERX BIOPHARMA INC.            100     62.57     64.29   116.06   196.42
S&P SMALLCAP 600 INDEX               100    104.13    126.33   158.65   156.58
PEER GROUP                           100    151.42    145.41   173.75   185.66

Peer Group Companies
- --------------------------------------------------------------------------------
GILEAD SCIENCES INC.
ISIS PHARMACEUTICALS INC.


                                       16
<PAGE>

                           TOTAL SHAREHOLDERS RETURN

[The following information was dipicted as a line chart in the printed material]

Company Name/Index                  2Nov95   Dec95    Dec96    Dec97     Dec98
- --------------------------------------------------------------------------------
HEMISPHERX BIOPHARMA INC.            100     62.57     64.29   116.06   196.42
S&P SMALLCAP 600 INDEX               100    104.13    126.33   158.65   156.58
PEER GROUP                           100    151.42    145.41   173.75   185.66


                                       17
<PAGE>

                    Security Ownership of Certain Beneficial
                              Owners and Management

         The  following  table sets forth,  as of May 15,  1999,  the record and
beneficial  ownership  of  Common  Stock  of the  Company  by each  officer  and
director,  all officers and  directors as a group,  and each person known to the
Company to own beneficially or of record five percent or more of the outstanding
shares of the Company:

                                     Shares           % of Share
Officers, Directors and           Beneficially       Beneficially
Principal Stockholders               Owned             Owned(1)
- ----------------------               -----             --------
William A. Carter                  3,255,922(2)          11.3%
Robert E. Peterson                   178,074(3)           **
Ransom Etheridge                      62,316(4)           **
Harris Freedman                    1,111,460(5)           4.0%
Sharon D. Will                       815,000(6)           3.0%
Richard C. Piani                      38,063(7)           **
William Mitchell                      25,640(8)
David R. Strayer, M.D.                82,746(9)           **
Josephine Dolhancryk                 75,820(10)           **

Jerome Belson                     1,544,100(11)          5.5%
 Belson Enterprises, Inc.
 495 Broadway
 New York, NY 10012

All directors and                 5,645,041(12)         18.3%
executive officers
as a group (8 persons)

- -------------
 *Less than 1%

(1)   For purposes of this table, a person or group of persons is deemed to have
      "beneficial ownership" of any shares of Common Stock which such person has
      the right to  acquire  within 60 days of May 15,  1999.  For  purposes  of
      computing  the  percentage of  outstanding  shares of Common Stock held by
      each  person or group of persons  named  above,  any  security  which such
      person or  persons  has or have the right to acquire  within  such date is
      deemed  to be  outstanding  but is not  deemed to be  outstanding  for the
      purpose of computing the percentage ownership of any other person.  Except
      as  indicated in the  footnotes  to this table and pursuant to  applicable
      community  property  laws,  the  Company  believes  based  on  information
      supplied by such persons, that the persons named in this table have sole


                                       18
<PAGE>

      voting and  investment  power with  respect to all shares of Common  Stock
      which they beneficially own.

(2)   Includes irrevocable proxies to vote 133,000 shares of Common Stock on all
      matters that come before the  stockholders  of the Company until such time
      as (i)  the  Company  shall  have  achieved  a  market  capitalization  of
      $300,000,000 or greater for at least 20 consecutive days of trading in the
      public  markets or (ii) the Company  shall have received a bona fide offer
      for acquisition or merger, the net effect of which, if consummated,  would
      be to  establish a market  capitalization  of the Company of not less than
      $300,000,000.  This proxy shall be terminated upon the sale of such shares
      in an arm's length  public sale.  Also  includes (i) an option to purchase
      73,728  shares of Common  Stock from the Company at an  exercise  price of
      $2.71 per share and expiring on August 8, 2001,  (ii) Rule 701 Warrants to
      purchase  1,400,000  shares of Common Stock at a price of $3.50 per share,
      expiring on September 30, 2002;  (iii) warrants to purchase 465,000 shares
      of  Common  Stock at $1.75 per share  issued in  connection  with the 1995
      Standby  Financing  Agreement and expiring on June 30, 2005 ; (iv) 190,000
      common  stock  warrants  exercisable  at $4.00 per share and  expiring  on
      January 1, 2003. Does not include 640,000 common stock warrants granted in
      1998, and 100,000 warrants granted in 1999, which are not yet exercisable.

(3)   Includes  (i)  27,754  options  to  purchase  Common  Stock at an  average
      exercise  price of $3.92  per  share,  expiring  on July  17,  2003;  (ii)
      warrants to purchase 50,000 shares of Common Stock at an exercise price of
      $3.50 per share,  expiring  on March 1, 2006;  (iii)  warrants to purchase
      100,000  shares of Common Stock at $5.00 per share,  expiring on April 14,
      2006; and (iv) 500 shares of Common Stock.

(4)   Includes  20,000  warrants  to purchase  Common  Stock at $4.00 per share,
      expiring  on January 1, 2001,  and  31,800  Class A Warrants  to  purchase
      Common Stock at $3.50 per share, expiring on November 2, 2000.

(5)   Includes (i) 67,000 shares of Common Stock held by Bridge Ventures,  Inc.,
      of which Mr.  Freedman is an officer;  (ii) 63,000  shares of Common Stock
      held by SMACS Holding Corp.,  of which Mr.  Freedman is an officer;  (iii)
      warrants to purchase  325,000 shares of Common Stock which are exercisable
      at $1.75 per share and expire on June 30, 2005,  issued in connection with
      the 1995 Standby  Financing  Agreement owned of record by Bridge Ventures,
      Inc.;  (iv)  400,000  Rule 701  Warrants to purchase  Common  Stock of the
      Company at an exercise  price of $3.50 and expiring on September 30, 2003;
      (vii) 109,300 Class A Warrants exercisable at $4.00 per share and expiring
      on November 2, 2000,  71,000 of which are owned by Bridge  Ventures,  Inc.
      and  38,300 of which  are  owned by SMACS  Holding  Corp.;  (viii)  97,160
      warrants to purchase Common Stock exercisable at $4.00 per share, expiring
      on October 15, 1999; and (ix) 50,000  warrants to purchase Common Stock at
      $4.00 per share,  expiring on January 1, 2004.  Bridge Ventures,  Inc.


                                       19
<PAGE>

      has given an  irrevocable  proxy to vote its  63,000  shares to William A.
      Carter on the same terms as the proxy described in Note 2.

(6)   Includes (i) 70,000  shares of Common  Stock,  of which 10,000 are held by
      Saggi Capital  Corp.  Money  Purchase  Plan, of which Ms. Will is trustee,
      10,000 are held by Saggi Capital Corp.  Profit  Sharing Plan, of which Ms.
      Will is trustee; and 50,000 are held by Worldwide Marketing, a company for
      which Ms. Will  serves as  President;  (ii) Rule 701  warrants to purchase
      200,000  shares of Common  Stock at an exercise  price of $3.50 per share,
      expiring on September 30, 2002;  (iii) 340,000 warrants to purchase Common
      Stock of the Company at an exercise  price of $1.75,  expiring on June 30,
      2005; (iv) 20,000  warrants to purchase Common Stock  exercisable at $3.00
      per share,  expiring on January 1, 2003; (v) 105,000  warrants to purchase
      Common Stock at $3.50 per share and expiring on October 15, 2004,  held by
      Saggi  Capital  Corp.,  of which Ms.  Will is  president;  and (vi) 80,000
      warrants  to  purchase  Common  Stock at $4.00 per share and  expiring  on
      January  1,  2003,  held by Saggi  Capital  Corp.,  of which  Ms.  Will is
      president.  Worldwide Marketing has given an irrevocable proxy to vote its
      shares to William A.  Carter on the same terms as the proxy  described  in
      Note 2.

(7)   Includes  (i)  options  to  purchase  4,608  shares of Common  Stock at an
      exercise  price of $4.34,  expiring  on and 4,608  shares of Common  Stock
      owned of record by Mr. Piani's wife; and (ii) 20,000  warrants to purchase
      Common Stock at $4.00 per share.

(8)   Includes  warrants to purchase  12,000 shares of Common Stock at $6.00 per
      share, expiring on August 25, 2001.

(9)   Includes (i) stock  options to purchase  20,000  shares of Common Stock at
      $3.50 per share;  (ii) 50,000  warrants to purchase  Common Stock at $4.00
      per share; and (iii) 12,746 shares of Common Stock.

(10)  Includes (i) options to purchase 461 shares of Common Stock at an exercise
      price of $3.80,  expiring on February 13,  2002;  (ii) options to purchase
      359 shares of Common Stock $3.80 per share, expiring on May 5, 2002; (iii)
      50,000 Warrants to purchase Common Stock at an exercise price of $3.50 per
      share,  expiring  on March 1, 2006;  and (iv) 5,000  warrants  to purchase
      Common Stock at $4.00 per share, expiring on November 2, 2000.

(11)  Includes 561,000 Class A Warrants, of which (i) 25,000 are owned of record
      by Maxine Belson,  Mr.  Belson's wife; and (ii) 21,000 are owned of record
      by Matthew Belson, Mr. Belson=s son. Also includes (i) 100,000 warrants to
      purchase Common Stock at $3.50 per share; (ii) 30,000 warrants to purchase
      Common Stock at $1.75 per share; (iii) 20,000 shares of Common Stock owned
      of record  by The  Jerome  Belson  Foundation,  of which  Mr.  Belson is a
      trustee; (iv) 15,000 shares of Common Stock held by Maxine Belson; and (v)
      25,500 shares of Common Stock held by Matthew Belson.

(12)  Includes options or warrants to purchase 4,215,370 shares of Common Stock.


                                       20
<PAGE>

                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

      On August 5, 1998, the Company  authorized the issuance of 12,000 warrants
to purchase  Common Stock  exercisable at $6.00 per share and expiring on August
25, 2001 to William Mitchell, a director of the Company.

      In April 1998, the Company  authorized the issuance of 100,000 warrants to
purchase  Common  Stock at an  exercise  price of $5.00  per  share to Robert E.
Peterson,  and 50,000 warrants to David R. Strayer at an exercise price of $4.00
per share.


      In January 1998, the Company authorized the issuance of the following five
year common stock  purchase  warrants to certain  officers and  directors of the
Company for services  rendered:  (i) 810,000  warrants to William A. Carter,  of
which  170,000  are  exercisable  at $4.00  per share  commencing  one year from
issuance,  170,000 are  exercisable at $4.00 per share  beginning two years from
issuance,  170,000 are exercisable at $5.00 per share beginning three years from
issuance,  and 300,000 are  exercisable at $6.00 per share  beginning four years
from the date of issuance;  (ii) 160,000  warrants to Bridge  Ventures,  Inc., a
company of which Harris Freedman is Vice President,  immediately  exercisable at
$4.00  per  share;  and  (iii)  45,000  warrants  to  Sharon  Will,  immediately
exercisable at $3.00 per share.


      In January  1998,  the Company  authorized  the issuance of 20,000  common
stock  purchase  warrants  to each of  three  of the  Company's  directors.  The
aforesaid warrants are exercisable at $4.00 per share during the two year period
commencing on the date of issuance.

      In January 1997,  the Company  authorized the issuance of stock options to
Josephine Dolhancryk (7,104),  Robert E. Peterson (13,750), and David R. Strayer
(20,000). All are exercisable at $3.50 per share.

      In March  1997,  Bridge  Ventures,  Inc.  purchased  75 shares of Series E
Preferred  at $1,000 per share in a private  offering  pursuant  to Rule 506 the
Securities Act and Regulation D promulgated  thereunder.  The Series E Preferred
is convertible into shares of Common Stock at $2.00 per share.  Harris Freedman,
the Company's Vice President,  is an officer of Bridge Ventures, Inc.

Compliance with Section 16(a) of the Exchange Act

      William A. Carter,  Harris Freedman,  Sharon Will and Ransom Etheridge did
not timely file  respective  Forms 4 in  connection  with  transactions  made in
fiscal 1998. All applicable  individuals  have since complied with Section 16 of
the Act.


                                       21
<PAGE>

                                 PROPOSAL NO. 2

                      RATIFICATION OF SELECTION OF AUDITORS

      The  firm of KPMG LLP  audited  the  consolidated  balance  sheets  of the
Company and its  subsidiaries  as of December  31, 1997 and 1998 and the related
consolidated statements of operations,  stockholders' equity (deficit), and cash
flows for each of the years in the three-year period ended December 31, 1998. On
February 18,  1999,  pursuant to a vote of the Board of  Directors,  the firm of
KPMG LLP was selected to audit the  financial  statements of the Company for the
year ending  December 31, 1999.  Accordingly,  the Board of Directors will offer
the following resolution at the Annual Meeting:

         RESOLVED,  that the  appointment  by the Board of Directors of KPMG LLP
         independent public  accountants,  to audit the financial  statements of
         the Company for the year  ending  December  31, 1999 be, and hereby is,
         ratified and approved.

      It is anticipated  that a member of KPMG LLP will be present at the Annual
Meeting to respond to appropriate questions and will have the opportunity, if he
desires, to make a statement.

      The affirmative vote of at least a majority of the shares  represented and
voting at the Annual  Meeting at which a quorum is present  (which shares voting
affirmatively  also  constitute  at least a majority of the required  quorum) is
necessary  for  approval of Proposal  No. 2. Under  Delaware  law,  there are no
rights of appraisal or  dissenter's  rights which arise as a result of a vote to
ratify the selection of auditors.

THE BOARD OF DIRECTORS  DEEMS  PROPOSAL NO. 2 TO BE IN THE BEST INTERESTS OF THE
COMPANY AND ITS STOCKHOLDERS AND RECOMMENDS A VOTE "FOR" APPROVAL THEREOF.

                             STOCKHOLDERS' PROPOSALS

      It is anticipated  that the Company's 2000 Annual Meeting of  Stockholders
will be held in July 2000.  Stockholders  who seek to present  proposals  at the
Company's next Annual Meeting of Stockholders must submit their proposals to the
Secretary of the Company on or before March 1, 2000.


                                       22
<PAGE>

                                     GENERAL

      Unless  contrary  instructions  are indicated on the proxy,  all shares of
Common Stock represented by valid proxies received pursuant to this solicitation
(and not revoked before they are voted) will be voted FOR Proposal No. 2 and for
the election of all directors nominated.

      The Board of  Directors  knows of no  business  other  than that set forth
above to be transacted at the meeting,  but if other matters requiring a vote of
the stockholders  arise, the persons  designated as proxies will vote the shares
of Common Stock  represented by the proxies in accordance with their judgment on
such matters. If a stockholder specifies a different choice on the proxy, his or
her shares of Common Stock will be voted in accordance with the specification so
made.

IT IS IMPORTANT THAT PROXIES BE RETURNED PROMPTLY.  WE URGE YOU TO FILL IN, SIGN
AND RETURN THE ACCOMPANYING FORM OF PROXY IN THE PREPAID ENVELOPE  PROVIDED,  NO
MATTER HOW LARGE OR SMALL YOUR HOLDINGS MAY BE.

                                   By Order of the Board of Directors,
                                   Ransom W. Etheridge, Secretary

Philadelphia, Pennsylvania
May 19, 1999


                                       23
<PAGE>

                           HEMISPHERX BIOPHARMA, INC.

           Annual Meeting of Stockholders -- Wednesday, July 14, 1999

           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

      The undersigned hereby appoints William A. Carter and Ransom Etheridge and
each  of  them,  with  power  of  substitution,  as  proxies  to  represent  the
undersigned  at the Annual  Meeting of  Stockholders  to be held at The  Embassy
Suites, 1776 Ben Franklin Parkway, Philadelphia,  Pennsylvania,  Wednesday, July
14, 1999 at 10:00 a.m. local time and at any  adjournment  thereof,  and to vote
the shares of stock the  undersigned  would be  entitled  to vote if  personally
present, as indicted on the reverse side hereof.

      The  shares  represented  by the proxy  will be voted as  directed.  If no
contrary  instruction is given,  the shares will be voted FOR Proposal No. 2 and
for the election of William A. Carter, Richard C. Piani, Ransom W. Etheridge and
William M. Mitchell as Directors.

Please mark boxes in blue or black ink.

1. Proposal No. 1 - Election of Directors.

      Nominees: William A. Carter, Richard C. Piani, Ransom W. Etheridge and
                William M. Mitchell.

       FOR all nominees |_|    AUTHORITY WITHHELD as to all nominees |_|

     For, except authority withheld as to the following nominee(s):

________________________________________________________________________________


<PAGE>

2.  Proposal  No.  2 for  ratification  of  the  selection  of  KPMG  LLP as the
independent auditors of the Company.

         |_|  FOR                |_|    AGAINST               |_|  ABSTAIN

3. In their  discretion,  the  proxies  are  authorized  to vote upon such other
business as may properly come before the meeting.

                                        (Please  date,  sign as name  appears at
                                        left, and return promptly.  If the stock
                                        is registered in the name of two or more
                                        persons,  each should sign. When signing
                                        as Corporate Officer, Partner, Executor,
                                        Administrator,   Trustee,  or  Guardian,
                                        please give full title.  Please note any
                                        change  in your  address  alongside  the
                                        address as it appears in the Proxy.

                                        Dated:__________________________________

                                        ________________________________________
                                                        (Signature)
                                        ________________________________________
                                                        (Print Name)

SIGN, DATE AND RETURN PROXY CARD PROMPTLY USING THE ENCLOSED ENVELOPE.



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