HEMISPHERX BIOPHARMA INC
S-3/A, 1999-04-01
DRUGS, PROPRIETARIES & DRUGGISTS' SUNDRIES
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      As filed with the Securities and Exchange Commission on April 1, 1999
                           Registration No. 333-68541
    
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              --------------------
   
                               AMENDMENT NO. 3 TO
    
                                    FORM S-3

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                              --------------------

                           HEMISPHERX BIOPHARMA, INC.
                         (Name of Issuer in its charter)

                                    Delaware
         (State or other jurisdiction of incorporation or organization)


            (Primary Standard Industrial Classification Code Number)

                                   52-0845822
                      (I.R.S. Employee Identification No.)
                              --------------------

                               1617 JFK Boulevard
                        Philadelphia, Pennsylvania 19103
                                 (215) 988-0080

(Address and telephone number of principal executive offices and principal place
                                  of business)
                              --------------------

                William A. Carter, M.D., Chief Executive Officer
                           Hemispherx Biopharma, Inc.
                               1617 JFK Boulevard
                        Philadelphia, Pennsylvania 19103
                                 (215) 988-0080

            (Name, address and telephone number of agent for service)

                        Copies of all communications to:
                            Michael H. Freedman, Esq.
                   Silverman, Collura, Chernis & Balzano, P.C.
                        381 Park Avenue South, Suite 1601
                            New York, New York  10016
                                 (212) 779-8600

<PAGE>
     Approximate  date  of proposed sale to the public:  From time to time or at
one  time  after the effective date of this Registration Statement as determined
by  the  Selling  Securityholders.

     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,  as  amended  ("Securities  Act"),  other  than securities offered only in
connection  with  dividend  or  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 462(c) under
the  Securities  Act,  check  the  following  box  and  list  the Securities Act
registration number of the earlier effective registration statement for the same
offering.  [  ]

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

                                       ii
<PAGE>
<TABLE>
<CAPTION>
                                 CALCULATION OF REGISTRATION FEE


                                Proposed         Proposed
                                 Maximum         Maximum
Title of Each Class of        Amount to be    Offering Price      Aggregate         Amount of
Securities to be Registered   Registered(1)    Per Share(2)    Offering Price   Registration Fee
============================  =============  ================  ===============  =================
<S>                           <C>            <C>               <C>              <C>
Common Stock(3). . . . . . .        750,000  $           6.50  $     4,875,000  $        1,477.27
- ----------------------------  -------------  ----------------  ---------------  -----------------
Common Stock(4). . . . . . .        250,000  $           6.50  $     1,625,000  $          492.42
- ----------------------------  -------------  ----------------  ---------------  -----------------

TOTAL. . . . . . . . . . . .      1,000,000                    $     6,500,000  $        1,969.70
============================  =============                    ===============  =================                   
<FN>
   
(1)   Pursuant to Rule 416 of the Securities Act of 1933, as amended,  there are
      also being  registered an  indeterminate  number of  additional  shares of
      common stock as may become  issuable  upon exercise of warrants to prevent
      dilution   resulting  from  stock  splits,   stock  dividends  or  similar
      transactions.
(2)   Common stock price per share  calculated in accordance with Rule 457(c) of
      the  Securities  Act  using the last sale  price for the  common  stock on
      December 7, 1998.
(3)   Common  stock  held  by  selling  securityholders.
(4)   Common  stock  underlying  warrants  held  by  the  selling  securityholder.
</TABLE>
    

     The  Registrant  hereby  amends  this registration statement on the 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,  as amended, or until the registration statement
shall  become  effective  on  a  date as the Securities and Exchange Commission,
acting  pursuant  to  said  Section  8(a),  may  determine.

                                       iii
<PAGE>
   
                    DATED APRIL 1, 1999 SUBJECT TO COMPLETION

                           Hemispherx Biopharma, Inc.
    

                        1,000,000 shares of common stock

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

     Value Management and Research may sell up to 1,000,000 shares of Hemispherx
common  stock.

     Hemispherx  will  not  receive  any  proceeds  from  this  offering.

                        ---------------------------------
   
     Please  see  the  risk  factors  beginning  on page 7 to read about certain
factors  you  should  consider  before  buying  shares  of  common  stock.
    
                        ---------------------------------
   
     Hemispherx's  common  stock and class A warrants are listed on the American
Stock  Exchange  under  the  symbols HEB and HEB/WS, respectively.  The reported
last  sale price on the American Stock Exchange on March 30, 1999 was $5.875 and
$2.563,  respectively.
    
     The  mailing  address  of  our  principal  executive  offices  is  1617 JFK
Boulevard,  Philadelphia,  Pennsylvania 19103, and the telephone number is (215)
988-0080.

   
     Neither  the  Securities  and  Exchange Commission nor any state securities
commission  has  approved  or disapproved of these securities or determined that
this  prospectus is truthful or complete.  Any representation to the contrary is
a  criminal  offense.

                 The date of this prospectus is April ___, 1999
    


                                        1
<PAGE>
   

                                   Hemispherx
    
     Hemispherx  is  a pharmaceutical company that is using genetic technologies
to  develop therapeutic products for the treatment of viral diseases and certain
cancers.   Ampligen,  our  lead  compound,  is  in  advanced  human  clinical
development  for  various therapeutic indications.  We have clinically evaluated
Ampligen  in  over  350  patients  for different therapeutic indications.  These
clinical  studies  show that the drug acts as an antiviral agent against a large
number  of different viruses, including myalgic encephalomyelitis, also known as
chronic  fatigue syndrome, HIV infection and hepatitis B, as well as a treatment
for  certain  cancers.  Clinical  trials  conducted in the early 1990's indicate
that  Ampligen  may  have  potential  in  the treatment of metastatic renal cell
cancer  and malignant melanoma.  Ampligen appears to stimulate the immune system
and  is  generally well tolerated.   We are currently conducting Phase III human
clinical  trials  for  the  therapeutic  treatment  of chronic fatigue syndrome.
Phase  III trials are the final drug testing phase for approval by the U.S. Food
and  Drug  Administration.

     We  will  continue  our  research and clinical efforts for the next several
years.  We  expect significant benefits as a result of certain revenues expected
from  various  cost  recovery treatment programs, notably in Canada, Belgium and
the United States.  Cost recovery treatment programs allow us to charge patients
for the cost of Ampligen even though the drug has yet to be approved by the Food
and  Drug  Administration.  We  are  also  pursuing  similar  programs  in other
countries,  especially  within  the European Union where our resources have been
substantially  increased  in  order  to  pursue  regulatory approvals.  Over the
years,  we have secured more than 25 issued U.S. patents and over 300 derivative
international  filings.  Nine  additional  U.S. patent filings are pending along
with  their  international  counterparts.

     We  require  substantial  resources to conduct the time-consuming research,
preclinical  development,  and clinical trials necessary to bring pharmaceutical
products  to  market  and  establish  commercial  production  and  marketing
capabilities.  Accordingly,  we  may  need  to  raise  additional  funds through
additional  equity  or debt financing, collaborative arrangements with corporate
partners, off balance sheet financing or from other sources in order to complete
the  necessary  clinical  trials and the regulatory approval processes and begin
commercializing  our  products.

Manufacturing
- -------------

     In 1994, we entered into an agreement with Bioclones, Ltd., a subsidiary of
South  African  Breweries,  Ltd., to co-develop various genetic drugs, including
Ampligen.  The  Bioclones agreement provided for the formation of Ribotech, Ltd.
Ribotech  was  formed  in  1994  to  produce the raw materials for manufacturing
Ampligen.  Hemispherx  and  Bioclones  jointly own Ribotech.  Ribotech presently
has  the capacity to produce the materials required to treat approximately 2,000
patients  per  year.  We  are  planning to develop a new production plant.  This
facility  will  have the capacity to produce the materials needed to treat up to
50,000  patients.

                                        2
<PAGE>
     In  the third quarter of 1998, we informed the Food and Drug Administration
of  our  intention  to  switch  certain  patients  from  the  labor  intensive
freeze-dried  dosage  form  of  Ampligen  to the more convenient ready-to-infuse
liquid  formulation  for  the  treatment  of  patients  in  clinical trials.  We
manufacture  the  liquid product more efficiently and the process allows greater
production  volumes,  although  we  will  continue  to  produce the freeze-dried
product for further clinical development.  We have initiated efforts to identify
and  locate additional liquid formulation capacity in the U.S. and Europe, since
we  anticipate that additional production capacity will be needed in the future.

Product  Development
- --------------------

     In  the  second quarter of 1998, we commenced a Phase III clinical study of
Ampligen for the treatment of chronic fatigue syndrome.  We plan to enroll up to
230  patients  with  severely  debilitating  chronic fatigue syndrome.   Chronic
fatigue  syndrome  patients  who are not eligible for the Phase III trial in the
United  States  may  seek  treatment  under  the  chronic  fatigue syndrome cost
recovery  treatment  program now authorized by the Food and Drug Administration.
Treatment  with cost recovery has been ongoing since mid-1997 under the auspices
of the Food and Drug Administration.  Under this protocol, the enrolled patients
pay  for  the  Ampligen  administered,  which  totals about $7,000 for a 24 week
treatment  course.  Patients  are  also  treated for chronic fatigue syndrome in
Belgium,  Austria  and  Canada  under  similar  chronic  fatigue  cost  recovery
treatment  programs.

Distribution/Marketing
- ----------------------

     In  February  1998,  we entered into an agreement with Kimberly Home Health
Care,  Inc. which operates under the name Olsten Health Services.  Olsten Health
Services  will  serve as a distributor of our products to U.S. patients enrolled
in  the  chronic  fatigue  syndrome  cost  recovery program and will maintain an
Ampligen  inventory  for  use  in  treating these patients.  In addition, Olsten
Health  Services  will  initially  provide  up  to $500,000 of support for other
clinical  program  efforts including identification of the potential medical and
economic  benefits  to  patients  receiving Ampligen.  Olsten Health Services is
able  to  deliver  treatment  and services to chronic disease patients including
infusion  services,  home  nursing and other medical services through a national
network  of  more  than  500  locations.
   
     We  are  exploring distribution and marketing relationships for the Western
European  market.  Arrangements  are being discussed with a French multinational
pharmaceutical  firm  with  respect  to  a  distribution  and/or  marketing
relationship.
    

                                        3
<PAGE>
   
     We  formed a wholly owned subsidiary in Europe, Hemispherx Biopharma Europe
NV/SA.  This  subsidiary  is  presently based in Antwerp and is pursuing chronic
fatigue  clinical  tests,  related  clinical  treatments  and new drug marketing
approval  in  Belgium  and other European countries.  In December 1998, we filed
final drug marketing approval documents for the European Union, consisting of 15
countries,  for  Ampligen's  use  for treatment of patients with chronic fatigue
syndrome.  In  January  1999,  we were notified that the filing was complete and
the  review  process  had  started.

Recent  Developments
- --------------------

Subsidiary  Spin-Off

     We  are  considering  distributing  to our shareholders at least 80% of the
issued  and  outstanding  shares of common stock of Core Biotech Corp.  We would
distribute the Core Biotech shares to each of the holders of our common stock as
of  a  record date set by us.  The timetable for this potential spin-off has not
been  determined.

     After  the  proposed spin-off, Core Biotech would use genetic technologies,
including  Ampligen  and other products, to develop therapeutic products for the
treatment  of  viral hepatitis diseases.  We would license or sublicense to Core
Biotech  the  technology  for  the  products  that will be used by Core Biotech.

     In  connection  with  the  proposed  spin-off,  we would enter into several
agreements  with  Core  Biotech,  including,  but  not  limited  to,


    
   
(a)   a separation and distribution  agreement which will separate our hepatitis
      technology from us, including some assets and liabilities,  and distribute
      Core Biotech common stock to our shareholders;
(b)   a tax allocation  agreement  allocating tax liabilities that relate to the
      planned spin-off and to periods prior to the spin-off date;
(c)   a services  agreement  providing for allocation of  responsibilities  with
      respect to various  services to be provided by us to Core Biotech;  (d) an
      employee benefits agreement; (e) a technology license agreement; and
(f)   a  research  and  development  agreement.
    

     These  agreements  are  in  the  early  stages  of development and no final
determination  as  to  structure  has  been  made.  Accordingly,  we  have  not
determined  Core  Biotech's  capitalization,  pro  forma  financial information,
management  or  inter-company  transactions.  We  believe  that,  except for the

                                        4
<PAGE>
initial  capitalization  of  Core  Biotech, the transfer of any other assets and
liabilities  would  have  no  significant affect on our financial position.  The
initial capitalization could be up to $5,000,000 and could negatively effect the
amount  of  cash we have at the time of the spin-off.  The results of operations
for  Core  Biotech  were  not  significant for the year ended December 31, 1998.

Litigation

     On September 14, 1998, VMW, Inc. filed a complaint against us in the United
States  District  Court,  Southern  District of New York.  The complaint alleges
that we failed to fulfill our financial obligations to VMW, Inc. with respect to
a certain letter agreement pertaining to marketing services rendered.  VMW, Inc.
claims  damages  of  less  than  $100,000.  We counterclaimed alleging breach of
contract  by  VMW and have demanded damages of approximately $25,000.  This case
is  currently  in the discovery phase.  We have discussed a potential settlement
of the claim with VMW.  The settlement terms are currently being negotiated.  We
do  not  believe  that  this claim will have a material effect on our results of
operations  or  our  financial  position.

     Ell  and Co., and the Northern Trust Company, as Trustee of the AT&T Master
Pension Trust filed a complaint against us in the Court of Chancery of the State
of  Delaware in and for New Castle County on September 23, 1998.  This complaint
alleges  that  we  breached  our  contractual  obligations  as  set forth in our
Certificate  of  Powers,  Designations,  Preferences  and Rights of the Series E
Convertible  Stock.  The  plaintiff seeks to enforce its rights to convert 1,500
shares  of  Series E Preferred Stock into 750,000 shares of freely traded common
stock  and  to  recover damages for its inability to convert the preferred stock
when  it  requested  to do so.  We do not believe that the complaint will have a
material  effect  on  our  results  of  operations  or  our  financial position.
[/R]
     Although  we maintain that the 1,500 shares of Series E Preferred Stock had
been  properly redeemed and, therefore, the plaintiff was not contractually able
to  effect  a proper conversion into common shares, we agreed, in December 1998,
to  convert  the  plaintiff's preferred stock into common stock.  Currently, the
claim  is  still  in  litigation.

     We  filed  a complaint against Manual P. Asensio, Asensio and Company, Inc.
and  others  in  the  United  States  District Court for the Eastern District of
Pennsylvania  on  September  30,  1998.  We allege the unlawful manipulation and
short  selling  by defendants of our common stock on the American Stock Exchange
on  or  about  September  15,  1998  through the present. We allege, among other
things,  that the defendants distributed materially false information concerning
us  to  the  public,  thereby  damaging  us  and  our  shareholder  equity.
   
                                        5
<PAGE>

    
   
     Certain  of  the  defendants have entered motions to dismiss all or part of
the  case.  On March 12, 1999, the Court issued a memorandum decision dismissing
four  of  the  six  counts.  Currently,  the  case  is  in  the discovery phase.
    
   
                                 Use of Proceeds
    

     We  will  not  receive  proceeds  from  the  resale of Value Management and
Research's  common  stock.  We  will receive $1,600,000 from the exercise of the
warrants,  assuming  all  of the warrants are exercised.  We intend to use these
proceeds for general corporate purposes.  Pending use of the proceeds, they will
be  invested  in  short term, interest bearing securities or money market funds.

                                        6
<PAGE>
   
                                  Risk Factors
    
     You  should  carefully consider the following factors and other information
in  this  prospectus  before deciding to invest in shares of common stock.  This
prospectus  contains  forward-looking  statements which can be identified by the
use  of  words such as "intend," "anticipate," "believe," "estimate," "project,"
or  "expect"  or  other  similar  statements.  These  statements  discuss future
expectations,  contain  projections  of  results  of  operations or of financial
condition, or state other "forward-looking" information.  When considering these
statements,  you  should keep in mind the risk factors described below and other
cautionary  statements in this prospectus.  The risk factors described below and
other  factors  noted  throughout  this  prospectus, including certain risks and
uncertainties,  could  cause  our actual results to differ materially from those
contained  in  any  forward-looking  statement.

1.     We  may continue to incur substantial losses and our future profitability
       is  uncertain.
   
     We  began operations in 1966 and last reported net profit from 1985 through
1987.  Since  1987,  we  have  incurred  substantial  operating losses and as of
December 31, 1998 our accumulated deficit was approximately $61,716,000. We have
not  yet  generated  significant  revenues  from  our  products  and  may  incur
substantial  and  increased  losses  in the future. We cannot assure you that we
will  ever achieve significant revenues from product sales or become profitable.
We  require and will continue to require the commitment of substantial resources
to  develop  our  products.  In addition, substantial funding may be required to
spin-off  Core  Biotech Corp.  We cannot assure you that our product development
efforts  will  be  successfully com-pleted or that required regulatory approvals
will  be  obtained  or  that  any  products  will  be  manufactured and marketed
successfully,  or  profitability.

2.     We  do  not  expect  to  be profitable unless we receive final regulatory
       approval  for  Ampligen  and  it  is  successfully  commercialized.

     Our  principal  development efforts are currently focused on Ampligen which
has  not  been  approved for commercial use in the U.S. or elsewhere.  We do not
expect  to  be  profitable  unless  we receive final regulatory approval and can
successfully commercialize Ampligen or one of our other products.  Our products,
including Ampligen, are subject to extensive regulation by numerous governmental
authorities in the U.S. and other countries, includ-ing, but not limited to, the
Food  and  Drug  Administration  in  the  U.S.,  the Health Protection Branch of
Canada's  Department  of  Health  and  Welfare,  a  federal regulatory agency in
Canada,  and  the  European  Medical  Evaluation  Agency  in  Europe.  Obtaining
regulatory  approvals  is  a  rigorous  and  lengthy  process-  and requires the
expendi-ture  of  substantial  resources.  In  order  to obtain final regulatory
approv-al  of  a  new  drug,  we  must  demonstrate  to  the satisfaction of the
regulatory  agency  that the product is safe and effective for its intended uses
and  that  we  are  capable  of  manufacturing  the  product  to  the applicable
regulatory  standards.  We  require  regulatory approvals in order to market our
products  and  receive  product  revenues or royalties.

                                        7
<PAGE>
     No  regulatory  agency  has approved the full commercial sale of any of our
products.  We cannot assure you that the drug will ultimately be demonstrated to
be  safe  or  efficacious.  In addition, while Ampligen is authorized for use in
clinical  trials  in the United States and other countries, we cannot assure you
that  additional  clinical  trials  approvals  will  be authorized in the United
States  or  in  other  countries, in a timely fashion or at all, or that we will
complete  these  clinical  trials.  Further,  we cannot assure you that Ampligen
will  be  commercially  successful  in any country that may approve its use.  If
Ampligen  or  one  of our other products does not receive regulatory approval in
the  U.S.  or  elsewhere,  our  operations  will  be  significantly  affected.

3.     We  may  not  be  profitable  unless  we  can  protect our patents and/or
       receive  approval  for  additional  pending  patents.

     We  need  to acquire enforceable patents covering the use of Ampligen for a
particular  disease  in order to obtain exclusive rights for the commercial sale
of  Ampligen.  Our  success  depends,  in  large  part, on our ability to obtain
patent  protection for our products and to obtain and preserve our trade secrets
and  knowhow.   We have been issued certain patents on the use of Ampligen alone
and  Ampligen  in combination with certain other drugs for the treatment of HIV.
We have also been issued patents on the use of Ampligen alone and in combination
with certain other drugs for the treatment of chronic hepatitis B virus, chronic
hepatitis  C virus, and a patent which affords protection on the use of Ampligen
in patients with chronic fatigue syndrome.  To date, we have not been issued any
patents  in  the U.S. for the use of Ampligen as a sole treatment for any of the
cancers  which we have sought to target.  Our applica-tions for U.S. patents for
the use of Ampligen in the treatment of renal cell carcinoma and lung cancer are
currently  pending.  We cannot assure you that any of these applications will be
approved  or that our competitors will not seek and obtain patents regarding the
use  of  Ampligen in combination with various other agents, including AZT, for a
particular  target  indication  prior  to  us.  If we cannot protect our patents
covering  the  use  of  Ampligen  for a particular disease, or obtain additional
pending  patents,  we  may  not  be  able  to  successfully  market  Ampligen.

4.     We  may  not  be  profitable unless we can produce Ampligen in commercial
       quantities  at  costs  acceptable  to  us.

     We  have  never produced Ampligen or any other products in large commercial
quantities.  Ampligen is currently produced only for use in clinical trials.  We
must  manufacture  our  products  in  compliance with regulatory requirements at
commercial  quantities and at acceptable costs in order for us to be profitable.
We intend to utilize third-party manufacturers and/or facilities if and when the
need  arises or, if we are unable to do so, to build or acquire commercial-scale
manufacturing  facili-ties.  We  have  entered into an agreement with Bioclones,
Ltd.,  a  biopharmaceutical  company  which  is  associated  with  South African

                                        8
<PAGE>
Breweries, Ltd.  The Bioclones agreement  provides for the construction of a new
commercial  manufacturing  facility by Ribotech, Ltd., a company of which we own
24.9%.   We  have not commenced constructing this facility.  A pilot facility in
South  Africa  is  being expanded to provide an increased supply of Ampligen raw
material.  The  construction  of  the  commercial facility is dependent upon the
regulatory  status  of  Ampligen,  or  other  products covered by our patents in
various  global markets, and we cannot give assurances with respect to when, and
if,  construction  will  be  initiated  or completed.   If we cannot manufacture
commercial  quantities  of Ampligen or enter into third party agreements for its
manufacture  at  costs  acceptable  to  us, our operations will be significantly
affected.

5.     If  our  distributors  do not market our product successfully, we may not
       generate  significant  revenues  or  become  profitable.

     We  have  limited  marketing  and  sales capability.  We need to enter into
marketing  agreements  and third party distribution agreements for our prod-ucts
in  order to generate significant revenues and become profitable.  To the extent
that  we  enter  into co-marketing or other licensing arrangements, any revenues
received  by  us will be dependent on the efforts of third parties, and there is
no  assurance  that these efforts will be successful.  Our agreement with Olsten
Health  Services  offers  the  potential  to  provide  significant marketing and
distribution  capacity  in  the  United  States  while  Bioclones,  Ltd. will be
responsible  for  fielding  an  adequate  sales  force in South America, Africa,
United  Kingdom,  Australia  and New Zealand.  Olsten Health Services is able to
deliver  treatment  and  services to chronic disease patients including infusion
services,  home nursing and other medical services through a national network of
more  than 500 locations.  Nevertheless, we cannot assure you that Olsten Health
Services  or  Bioclones will be able to successfully distribute our products, or
that  we  will be able to establish future marketing or third party distribution
agreements  on  terms  acceptable  to us, or that the cost of establishing these
arrangements  will  not  exceed  any product revenues-.  If we cannot enter into
future  marketing  and  distribution agreements at terms acceptable to us, or if
these  distributors  cannot  effectively market and distribute our products, our
operations  will  be  negatively  affected.

6.    We may be subject to product  liability claims from the use of Ampligen or
      other of our products which could negatively affect our future operations.

     We  face  an inherent business risk of exposure to product liability claims
in  the  event  that  the  use  of  Ampligen or other of our products results in
adverse  effects.  This  liability  might  result  from  claims made directly by
patients,  hospitals, clinics or other consumers, or by pharmaceutical companies
or others manufacturing these products on our behalf.  Our future operations may
be  negatively  effected from the litigation costs, settlement expenses and lost
product  sales  inherent  to these claims.  While we will continue to attempt to
take  appropriate  precautions,  we  cannot  assure  you  that  we  will  avoid

                                        9
<PAGE>
significant  product  liability  exposure.  Although  we  currently  maintain
worldwide  product  liability  insurance  coverage  in the amount of $1,000,000,
there  can  be  no  assurance that this insurance will provide adequate coverage
against product liability claims.  While no product liability claims are pending
or  threatened  against us to date, a successful product liability claim against
us  in  excess  of  our  insurance  coverage could have a negative effect on our
business  and  financial  condition.

7.     Members  of  our Scientific Advisory Board have conflicting interests and
       may  disclose  data  and  technical  knowhow  to  our  competitors.

     All  of  our  Scientific  Advisory  Board  members  are  employed  by other
entities,  which  may  include our competitors.  Although we require each of our
Scientific  Advisory  Board members to sign a non-disclosure and non-competition
agreement  with respect to the data and information that he or she receives from
us,  we  cannot assure you that members will abide by them.  If a member were to
reveal  this  information  to  outside  sources,  accidentally or otherwise, our
operations  could  be  negatively effected.  Since our business depends in large
part  on  our  ability  to keep our knowhow confidential, any revelation of this
information  to a competitor or other source could have an adverse effect on our
operations.
    
8.     The  loss  of  Dr.  Carter's services could hurt our chances for success.

     Our success is dependent on the continued efforts of Dr. William A. Carter.
The  loss  of  Dr. Carter's services could have a material adverse effect on our
operations.  While  we  have an employment agreement with Dr. William A. Carter,
and  have secured key man life insurance in the amount of $2 million on the life
of  Dr. Carter, the loss of Dr. Carter or other key personnel, such as Dr. David
Strayer  or  Dr.  Carol Smith, or the failure to recruit additional personnel as
needed  could  have  a  materially  adverse effect on our ability to achieve our
objectives.
   
9.     Restricted  shares  eligible for sale may depress the market price of our
       common  stock.

     A  significant  number  of  our  outstanding  shares  of  common  stock are
"restricted,"  as that term is defined under Rule 144 of the Securities Act.  In
addition,  we  have issued warrants to purchase 2,080,000 shares of common stock
in reliance upon the provisions of Rule 701 of the Securities Act.  All of these
Rule  701  shares  are  currently  eligible  for  sale,  although  the holder of
1,400,000 of these rule 701 shares has agreed to not sell any of these shares in
1999.  Under Rule 144, in general, a person may sell stock if the stock has been
owned  for  at  least  one  year.  Rule  144  sales  must  be made under certain
conditions,  including,  limitations as to the amount of shares that may be sold
in  any  three-month period.  Rule 144 also permits a sale, without any quantity
limitation,  by  a  person  who  is  not  an affiliate of the issuer and who has
satisfied  a  two-year  holding period.  We cannot predict the effect that sales
made  under  Rule  144  or  Rule 701, sales made in reliance on other exemptions

                                       10
<PAGE>
under  the securities laws or under registration statements may have on any then
prevailing  market  price.  The  sale,  or  availability  for  sale,  of  these
securities  in the public market subsequent to this prospectus, could affect the
market  price  of  the  common  stock  and  could  impair  our  ability to raise
additional  capital through the sale of our equity securities or debt financing.

10.     We  are dependent on our systems to operate our business, and failure to
        adequately  address  the Year 2000 problem could hurt our profitability.
    
     We  are  dependent upon computers to operate our business and therefore are
exposed  to  Year  2000  problems.  In  the  spring  of 1998, we initiated a Y2K
compliance  program  with  the  following  objectives:

(a)     abupdating  and/or  replacing  aging  hardware;
(b)     abestablishing  a  new  platform  for  data  bases;  and
(c)     abassuring  company-wide  Y2K  compliance.

     With  the  assistance  of outside consultants, we learned that the computer
systems  used for clinical and manufacturing purposes are not Y2K compliant.  In
order  to  make  these  systems  compliant,  we  elected to replace the computer
systems.  We  expect  to have all computers and systems Y2K compliant by May 15,
1999  at  a  cost  estimated  between  $150,000  and  $200,000.

     Our contingency plans are not complete at this time.  We are confident that
our  new computers and software will be online by May 15, 1999.  Some thought is
being  given  to  outsourcing  the computer tasks as a contingency plan.  We are
looking  into  suppliers  that  could  provide  this service.  This approach, if
necessary,  would  be  expensive.

     In  a  worst case scenario, we would experience delays in accessing data on
patients  enrolled  in clinical trials.  These delays could slow down regulatory
compliance  and  commercial  approval  of  Ampligen  by  the  Food  and  Drug
Administration.  Our  management of Ampligen production and inventories would be
slow  and  time  consuming, which could delay shipments of Ampligen for clinical
trials.  Our  Y2K  program  is  expected  to  significantly  reduce our level of
uncertainty  about  the Y2K problem and, in particular, about the Y2K compliance
and  readiness  of  our  material  external  agents.  We  believe that, with the
implementation  of  new  business  systems  and completion of our Y2K program as
scheduled,  the  possibility  of  significant interruptions or normal operations
should  be  reduced.

                                       11
<PAGE>
              Where you can find more information about Hemispherx

     We  file  annual, quarterly and special reports, proxy statements and other
information  with  the  SEC.  You  may read and copy any document we file at the
SEC's  public  reference  room  in  Washington,  D.C.,  New  York, New York, and
Chicago,  Illinois.  Please  call  the  SEC  at  1-800-SEC-0330  for  further
information  on  the public reference rooms.  Our SEC filings are also available
to  the  public  from  our  web  site http://www.hemispherx.com or  at the SEC's
web  site  http://www.sec.gov.

     The  SEC  allows  us  to "incorporate by reference" the information we file
with  them,  which  means  that  we can disclose important information to you by
referring  you to those documents.  The information incorporated by reference is
considered  to  be  part  of this prospectus, and later information that we file
with  the  SEC  will  automatically  update  and supercede this information.  We
incorporate  by reference the documents listed below and any future filings made
with  the  SEC under Sections 13(a), 14, or 15(d) of the Securities Exchange Act
of  1934  until  Value  Management  and  Research  sells  all  the shares.  This
prospectus  is  part  of  a  registration  statement  we  filed  with  the  SEC
(Registration  No.  333-68541).

     (a)  Annual Report on Form 10-K for its fiscal year ended December 31, 1998
(File  No.  1-13441);

     (b) The description of common stock contained in the Registration Statement
on  Form  S-1,  File  No.  33-93314,  and  any amendment or report filed for the
purpose  of  updating  this  description  filed  subsequent  to the date of this
prospectus  and  prior  to  the  termination  of  this  offering.

     You  may  request  a  copy  of  these  filings,  at  no cost, by writing or
telephoning  us  at  the following address: Hemispherx Biopharma, Inc., 1617 JFK
Boulevard,  Philadelphia,  Pennsylvania  19103, telephone number (215) 988-0080.

     You  should  rely  only  on  the  information  incorporated by reference or
provided  in  this  prospectus or any supplement.  We have not authorized anyone
else  to  provide you with different information.  Value Management and Research
will  not  make  offers  of  these  shares  in  any state where the offer is not
permitted.  You should not assume that the information in this prospectus or any
supplement  is accurate as of any date other than the date on the front of those
documents.

                                       12
<PAGE>
                       Resales by Selling Securityholders
   
     This  prospectus  relates  to  the  proposed resale by Value Management and
Research of 1,000,000 shares of common stock.  The following table sets forth as
of  March  29,  1999  certain  information  with respect to Value Management and
Research.   Value  Management  and Research has no material relationship with us
and has not held any position or office with us during the past three years.  We
will  not  receive  any  of  the proceeds from the sale of the common stock.  We
believe,  based  on  information supplied by Value Management and Research, that
Value  Management and Research has sole voting and investment power with respect
to the shares of common stock.  Of the 1,000,000 shares of common stock owned by
Value  Management  and  Research,  250,000  represent  shares  of  common  stock
underlying  warrants.  200,000  of  these  warrants  are  exercisable,  based on
various vesting criteria, during the five year period commencing April 30, 1998,
at  exercise  prices  ranging  from  $4.00  to  $10.00  per share and 50,000 are
exercisable  during the five year period commencing July 10, 1998 at an exercise
price  of  $4.00.
    
<TABLE>
<CAPTION>
                          Securities                     Securities
                         Owned Prior      Securities       Owned
                         to Offering       Offered     After Offering
- --------------------  -----------------  ------------  ---------------
Name of Selling       Common
Securityholder         Stock   Warrants  Common Stock  Amount  %
- --------------------  -------  --------  ------------  --------  -----
<S>                   <C>      <C>       <C>           <C>       <C>
Value Management and  750,000   250,000     1,000,000         0      0
 Research AG
</TABLE>

                              Plan of Distribution

     Value Management and Research may sell the shares of common stock from time
to  time  in one or more transactions on the American Stock Exchange, in special
offerings,  exchange  distributions,  secondary  distributions,  negotiated
transactions,  or  a  combination  of these transactions.  It may sell at market
prices  at  the  time  of  sale,  at  prices  related  to the market price or at
negotiated  prices.
   
     Sales of the common stock may also be made under Rule 144 of the Securities
Act  of 1933, where applicable.  Value Management and Research's shares may also
be  offered  in one or more underwritten offerings, on a firm commitment or best
efforts  basis.  We  will not receive proceeds from the sale of Value Management
and  Research's  common  stock.
    
     Under  applicable  rule  and regulations under the Exchange Act, any person
engaged  in  the  distribution  of  the common stock may not bid for or purchase
shares  of  common  stock during a period which commences one business day, or 5

                                       13
<PAGE>
business  days if our public float is less than $25 million or our average daily
trading volume is less than $100,000, prior to the person's participation in the
distribution,  subject  to  exceptions  for  certain  passive  market  making
activities.  In  addition  and  without limiting the foregoing, Value Management
and  Research  will  be subject to applicable provisions of the Exchange Act and
the  rules and regulations thereunder, including, without limitation, Regulation
M  which  may  limit  the timing of purchases and sales of common stock by Value
Management  and  Research.

     We  are  bearing  all  costs  relating to the registration of the shares of
common stock, other than fees and expenses, if any, of counsel or other advisors
to  Value  Management  and  Research.  Any  commissions, discounts or other fees
payable  to  broker-dealers  in connection with any sale of the shares of common
stock  will  be  borne  by  Value  Management  and  Research.

                          Transfer Agent and Registrar

     The  transfer agent and registrar for our common stock and class A warrants
is  Continental  Stock  Transfer  and  Trust Co., 2 Broadway, New York, New York
10004.

                                  Legal Matters

     The legality of the common stock offered in this prospectus has been passed
upon  for  us  by  Silverman,  Collura, Chernis & Balzano, P.C., 381 Park Avenue
South,  Suite  1601,  New  York,  New  York  10016.

                                     Experts

     The  consolidated  financial  statements of Hemispherx as December 31, 1998
and  1997, and for each of the years in the three year period ended December 31,
1998,  have  been  incorporated  by  reference  in  this  prospectus  and in the
registration  statement  in  reliance  upon  the report of KPMG LLP, independent
certified  public  accountants, and upon the authority of KPMG LLP as experts in
accounting  and  auditing.

                                       14
<PAGE>
              Disclosure of Commission Position on Indemnification
                         for Securities Act Liabilities

     Insofar as indemnification for liabilities arising under the Securities Act
may  be  permitted  to our directors, officers, and controlling persons, we have
been  advised  that  in  the  opinion  of the Commission this indemnification is
against  public  policy  as  expressed  in  the Securities Act and is, therefore
unenforceable.  In  the  event  that  a  claim for indemnification against these
liabilities,  other  than  our payment of expense incurred or paid by one of our
directors,  officers,  or  controlling  persons in the successful defense of any
action, suit or proceeding, is asserted by that director, officer or controlling
person  in  connection  with the securities being registered, we will, unless in
the  opinion  of  our  counsel  the  matter  has  been  settled by a controlling
precedent,  submit  to  a court of appropriate jurisdiction the question whether
this  indemnification  by  us  is  against  public  policy  as  expressed in the
Securities  Act  and will be governed by the final adjudication of these issues.

                                       15
<PAGE>
================================================================================

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

     No  dealer,  salesman  or any other               1,000,000 SHARES
person  is  authorized  to  give  any                  OF COMMON STOCK
information  or  to represent  anything
not  contained  in this prospectus.  You
must  not  rely  on  any  unauthorized
information  or  representations.  This
prospectus  is  an  offer  to sell these
securities  and it is not a solicitation
of an  offer  to  buy  these  securities
in any state  where  the  offer  or sale
is  not  permitted.  The  information
contained  in this Prospectus is current
only as of this date
                                                   Hemispherx Biopharma, Inc.
   
           TABLE OF CONTENTS

                                    Page

Hemispherx . . . . . . . . . . . .     2              ----------------
Use of Proceeds. . . . . . . . . .     6
Risk Factors . . . . . . . . . . .     7                 PROSPECTUS
Where you can find more
 information about Hemispherx. . .    12              ----------------
Resales by Selling Securityholders    13
Plan of Distribution . . . . . . .    13               ___________, 1999
Transfer Agent . . . . . . . . . .    14
Legal Matters. . . . . . . . . . .    14
Experts. . . . . . . . . . . . . .    14
Disclosure of Commission Position.    15   ===================================
    
        --------------------

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

<PAGE>
                                                      PART II

                                      INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

<TABLE>
<CAPTION>
<S>                                          <C>
  SEC Registration Fee. . . . . . . . . . .  $2,159.09
  Printing. . . . . . . . . . . . . . . . .  $  2,500*
  Legal Fees and Expenses . . . . . . . . .  $ 10,000*
  Accounting Fees and Expenses. . . . . . .  $  2,500*
  Miscellaneous Expenses (including travel
   and promotional expenses). . . . . . . .  $  1,000*
    TOTAL . . . . . . . . . . . . . . . . .  $ 18,159*
<FN>
     *Estimated
</TABLE>

     The  Selling  Securityholders  will not pay any  portion  of the  foregoing
expenses of issuance and distribution.

Item 15. Indemnification of Directors and Officers.

     The  Restated  Certificate  of  Incorporation  of the  Company  provides as
follows:

               No person who is or was a director of this  Corporation  shall be
          personally  liable to the Corporation or its stockholders for monetary
          damages for the breach of any  fiduciary  duty as a director,  unless,
          and only to the  extent  that,  such  director  is liable  (i) for any
          breach of the  director's  duty of loyalty to the  Corporation  or its
          stockholder,  (ii) for  acts or  omissions  not in good  faith or that
          involve  intentional  misconduct or a knowing  violation of law, (iii)
          under  Section  174 of the  General  Corporation  Law of the  State of
          Delaware,  or (iv) for any transaction form which the director derived
          an improper personal benefit.

     Section  145  of  the  Delaware  General  Corporation  Law  gives  Delaware
corporations  the power to indemnify  each of the  Company's  present and former
officers and directors under certain circumstances, if such person acted in good
faith and in a manner which he reasonably  believed to be in, or not opposed to,
the best interests of the  corporation.  The Company's  Restated  Certificate of
Incorporation generally requires the Company to indemnify directors and officers
to the fullest extent permissible under Delaware law.

     The Company has entered into  indemnification  agreements  with its current
directors  and certain of its  executive  officers.  These  agreements  have the
practical  effect in certain cases of eliminating the ability of stockholders to
collect monetary damages from such individuals.

                                      II-1
<PAGE>
Item 16.          Exhibits and Financial Statement Schedule

         (a)  The following exhibits are filed herewith:

<TABLE>
<CAPTION>
EXHIBIT
  NO.                             DESCRIPTION
- --------  ---------------------------------------------------------------------
<C>       <S>
  (1)1.1  Form of Underwriting Agreement

  (1)1.2  Form of Selected Dealer Agreement

  (1)1.3  Form of Agreement Among Underwriters

  (1)3.1  Amended and Restated Certificate of Incorporation of
          Registrant, as amended, along with Certificates of
          Designations, Rights and Preferences of Series A1, A2, B
          and C Preferred Stock, as amended

  (1)3.2  By-laws of Registrant, as amended

  (2)3.3  Certificate of Designations of Series D Preferred Stock

  (2)3.4  Certificate of Correction to Certificate of Designations of
          Series D Preferred Stock

  (3)3.5  Certificate of Designations of Series E Preferred Stock

  (1)4.1  Specimen certificate representing Registrant's Common Stock

  (1)4.2  Form of Class A Redeemable Warrant Certificate

  (1)4.3  Form of Underwriter's Unit Option Purchase Agreement

  (1)4.4  Form of Class A Redeemable Warrant Agreement with
          Continental Stock Transfer and Trust Company

     5.1  Opinion of Silverman, Collura & Chernis, P.C. with
          respect to legality of the securities of the Registrant being
          registered

 (1)10.1  Registration Rights Agreement, dated as of May 9, 1989

 (1)10.2  Subordination Agreement, dated as of September 18, 1992

 (1)10.3  Series A1 and Series A2 Preferred Stock Purchase
          Agreement, dated as of January 22, 1991

                                      II-2
<PAGE>
 (1)10.4  Sixth Amendment Agreement, dates as of March 31, 1994,
          amending the Series A1 and Series A2 Preferred Stock
          Purchase Agreement

 (1)10.5  Seventh Amendment Agreement, dated as of January 1, 1995,
          amending the Series A1 and Series A2 Preferred
          Stock Purchase Agreement

 (1)10.6  Form of Series C Preferred Stock Subscription Agreement,
          dated as of June 22, 1993

 (1)10.7  Form of Series C Debt Subscription Agreement, dates as of
          June 30, 1993

 (1)10.8  Form of Note issued with respect to Series C Debt
          Subscription Agreement, dated as of June 30, 1993

 (1)10.9  Form of Warrant issued with respect to Series C Debt
          Subscription Agreement, dated as of June 30, 1993

(1)10.10  Cohn Restructuring Agreement, dated as of March 31, 1994

(1)10.11  Form of Warrant issued with respect to Cohn Restructuring
          Agreement, dated as of March 31, 1994

(1)10.12  Note issued with respect to Cohn Restructuring Agreement,
          dated as of March 31, 1994

(1)10.13  Letter Agreement, dated April 14, 1994 between the
          Registrant and Maryann Charlap and Promissory Notes

(1)10.14  Letter Agreement, dated July 13, 1994 between Bridge
          Ventures, Inc. and the Registrant

(1)10.15  Letter Agreement dated September 20, 1994 between
          Maryann Charlap and Lloyd DeVos

(1)10.16  Letter Agreement, dated November 1, 1994 among the
          Registrant, Bridge Ventures, Inc. and Myron Cherry

(1)10.17  Form of Bridge Loan Agreement and Promissory Note

(1)10.18  [Intentionally left blank]

(1)10.19  Form of Registration Rights Agreement issued pursuant to 1994
          Common Stock Financing Subscription Agreement

                                      II-3
<PAGE>
(1)10.20  Form of Proxy issued pursuant to 1994 Common Stock
          Financing Subscription Agreement

(1)10.21  Standby Financing Agreement, dated June 2, 1995, as
          amended September 20, 1995

(1)10.22  Tisch/Tsai Entities Stock Pledge Agreement, dated
          February 28, 1995

(1)10.23  Tisch/Tsai Entities Settlement Agreement, dated February 28, 1995

(1)10.24  Form of Promissory Note with Tisch/Tsai Entities
(1)10.25  Form of Warrant with Tisch/Tsai Entities

(1)10.26  Letter Agreement, dated May 4, 12995 between the
          Registrant and Gerald Brauser

(1)10.27  Brauser Note, dated May 2, 1995

(1)10.28  1990 Stock Option Plan

(1)10.29  1992 Stock Option Plan

(1)10.30  1993 Employee Stock Purchase Plan

(1)10.31  Form of Confidentiality, Invention and Non-Compete
          Agreement

(1)10.32  Form of Clinical Research Agreement

(1)10.33  Form of Collaboration Agreement

(1)10.34  Employment Agreement by and between the Registrant and
          John R. Rapoza, dated May 18, 1992

(1)10.35  Employment Agreement by and between the Registrant and
          James R. Owen, dated September 21, 1992

(1)10.36  Amended and Restated Employment Agreement by and
          between the Registrant and Dr. William A. Cater, dated as
          of July 1, 1993

(1)10.37  Employment Agreement by and between Registrant and
          Harris Freedman, dated August 1, 1994

(1)10.38  Employment Agreement by and between the Registrant and
          Sharon Will, dated August 1 1994

                                      II-4
<PAGE>
(1)10.39  License Agreement by and between the Registrant and the
          Johns Hopkins University, dated December 31, 1980

(1)10.40  Technology Transfer, Patent License and Supply
          Agreement by and between the Registrant, Pharmacia LKB
          Biotechnology Inc., Pharmacio P-L Biochemicals Inc. and
          E.I. du Pont de Nemours and Company, dated November 24, 1987

(1)10.41  Pharmaceutical Use Agreement, by and between the
          Registrant and Temple University, dated August 3, 1988

(1)10.42  Assignment and Research Support Agreement by and
          between the Registrant, Hahnemann University and Dr.
          David Strayer, Dr. Isadore Brodsky and Dr. David
          Gillespie, dated June 30, 1989
(1)10.43  Lease Agreement between the Registrant and Red Gate III
          Limited Partnership, dated November 1, 1989, relating to
          the Registrant's Rockville, Maryland facility

(1)10.44  Fee Agreement between the Registrant and Choate, Hall &
          Stewart, dated January 27, 1993

(1)10.45  Settlement and Release Agreement between the Registrant
          and Lloyd DeVos, dated August 18, 1994

(1)10.46  Agreement between the Registrant and Bioclones
          (Proprietary) Limited

(1)10.47  Licensing Agreement with Core BioTech Corp.

(1)10.48  Licensing Agreement with BioPro Corp.

(1)10.49  Licensing Agreement with BioAegean Corp.

(1)10.50  Letter Agreement, dated may 12, 1992, between the
          Registrant and Dr. Werner E.G. Muller

(1)10.51  Amendment, dated August 3, 1995, to Agreement between
          the Registrant and Bioclones (Proprietary) Limited
          (contained in Exhibit 10.46)

(1)10.52  Agreement, dated July 16, 1995, between the Registrant,
          Vernacular Communications, Inc. Gerald Souham,
          Mitchell L. Reisman, Craig S. O'Keefe and Robert C.
          Conaboy

                                      II-5
<PAGE>
(1)10.53  Agreement, dated June 27, 1995, between the Registrant
          and The Sage Group

(1)10.54  Form of Indemnification Agreement

(1)10.55  Agreement, dated September 13, 1995, between the
          Registrant and River Pharma Inc.

(2)10.56  Series D Preferred Stock Subscription Agreement, dated June 28, 1996

(2)10.57  Series D Preferred Stock Registration Rights Agreement,
          dated June 28, 1996

(2)10.58  GFL Advantage Fund Limited Common Stock Purchase
          Warrant, dated June 28, 1996

(3)10.59  Series E Preferred Stock Registration Rights Agreement

(4)10.60  Value Management & Research, AG Subscription
          Agreement dated July 20, 1998

   (1)11  Calculation of Earnings Per Share

 (1)14.1  Material Foreign Patents

   (1)21  Subsidiaries of the Registrant

    23.1  Consent of Silverman, Collura, Chernis & Balzano, P.C.
          (included in Exhibit 5.1)

    23.2  Consent of KMPG LLP
<FN>
(1)  Incorporated by reference from the Company's Registration Statement on Form
     S-1  (Registration No. 33-93314)  declared  effective by the Securities and
     Exchange Commission on November 2, 1995.

(2)  Incorporated by reference from the Company's Registration Statement on Form
     S-1  (Registration No. 333-8941)  declared  effective by the Securities and
     Exchange Commission on September 16, 1996.

(3)  Incorporated by reference from the Company's Registration Statement on Form
     S-1 (Registration No. 333-24983)  declared  effective by the Securities and
     Exchange Commission on April 18, 1997.

(4)  Previously filed herewith.
</TABLE>

                                      II-6
<PAGE>
     b.   Financial Statement Schedules.

     All schedules are omitted from this Registration Statement because they are
not  required  or the  required  information  is  included  in the  Consolidated
Financial Statement or the Notes thereto.

Item 17. Undertakings.

     (a)  Rule 415 Offerings.

     The undersigned issuer hereby undertakes that it will:

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

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

               (ii)  Reflect  in the  prospectus  any  facts  or  events  which,
               individually or together,  represent a fundamental  change in the
               information in the Registration Statement; and

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

provided,  however,  the paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
Registration  Statement is on Form S-3 or Form S-8, and the information required
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  Exchange  Act of 1934  that are  incorporated  by  reference  in the
Registration Statement.

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

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

     (b)  Request for acceleration of effective date.

          (1)  Insofar as  indemnification  for  liabilities  arising  under the
Securities Act, may be permitted to directors,  officers and controlling persons
of the small business issuer pursuant to the foregoing provisions, or otherwise,
the issuer 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

                                      II-7
<PAGE>
indemnification  against  such liabilities (other than the payment by the issuer
of expenses incurred or paid by a director, officer or controlling person of the
issuer in the successful defense of any action, suit or proceedings) is asserted
by  such  director,  officer  or  controlling  person  in  connection  with  the
securities  being  registered,  the  issuer  will,  unless in the opinion of its
counsel  the matter has been settled by controlling precedent, submit to a court
of  appropriate  jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed by
the  final  adjudication  of  such  court.

          (2) For determining any liability under the Securities Act, treat each
post-effective   amendment   that  contains  a  form  of  prospectus  as  a  new
registration statement for the securities offered in the registration statement,
and that  offering  of the  securities  at that  time as the  initial  bona fide
offering of those securities.

                                      II-8
<PAGE>
                                   SIGNATURES
   
     In accordance  with the  requirements of the Securities Act, the Registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  of filing this  Amendment  No. 2 to Form S-3 and  authorized  this
registration  statement  to be signed on its behalf by the  undersigned,  in the
City of Philadelphia, State of Pennsylvania, on March 30, 1999.
    
                                     HEMISPHERX BIOPHARMA, INC.


                                     By: /s/ William A. Carter
                                         ---------------------------------------
                                            William A. Carter, President and CEO


     In  accordance   with  the   requirements   of  the  Securities  Act,  this
Registration statement was signed by the following persons in the capacities and
on the dates stated.
   
        Signature                      Title                     Date
- -------------------------  -------------------------------  ---------------
                           Principal Executive Officer
                           and Chairman of the Board
                           and as Power of Attorney
/s/ William A. Carter      for Members of the Board          March 30, 1999
- -----------------------
William A. Carter, M.D.

                           Principal Financial Officer and
/s/ Robert E. Peterson     Principal Accounting Officer      March 30, 1999
- -----------------------
Robert E. Peterson


/s/ Richard Piani          Director                          March 30, 1999
- -----------------------
Richard C. Piani


/s/ Ransom W. Etheridge    Director                          March 30, 1999
- -----------------------
Ransom W. Etheridge


/s/ William Mitchell       Director                          March 30, 1999
William Mitchell
    




                  Silverman, Collura, Chernis & Balzano, P.C.
                       381 Park Avenue South, Suite 1601
                           New York, New York  10016
                                (212) 779-8600

  PETER R. SILVERMAN                             ** MATHEW J. SIMON
  ANTHONY M. COLLURA                                MICHAEL C. BYRNE
  PAUL CHERNIS                                   ** MICHAEL H. FREEDMAN
* RONALD A. BALZANO                                      -------
  THOMAS J. BYRNE
                                                  * ALSO ADMITTED IN CONNECTICUT
                                                 ** ALSO ADMITTED IN NEW JERSEY


                                   April  1,  1999

Hemispherx  Biopharma,  Inc.
1617  JFK  Boulevard
Philadelphia,  Pennsylvania  19103

     Re:     Registration  Statement  on  Form  S-3
             --------------------------------------

Gentlemen:

     We  have  acted  as  counsel  to  Hemispherx Biopharma, Inc. ("Company"), a
Delaware  corporation,  pursuant to Registration Statement on Form S-3, as filed
with  the  Securities and Exchange Commission on December 8, 1998 ("Registration
Statement"),  covering  (i)  750,000 shares of the Company's common stock, $.001
par  value  ("Common Stock"); and (ii) 250,000 shares of Common Stock underlying
warrants.

     In  acting  as  counsel  for  the  Company  and arriving at the opinions as
expressed below, we have examined and relied upon originals or copies, certified
or  otherwise  identified  to  our satisfaction, of such records of the Company,
agreements  and  other instruments, certificates of officers and representatives
of  the Company, certificates of public officials and other documents as we have
deemed  necessary  or  appropriate as a basis for the opinions expressed herein.

     In  connection  with our examination we have assumed the genuineness of all
signatures,  the  authenticity of all documents tendered to us as originals, the
legal  capacity  of  natural persons and the conformity to original documents of
all  documents  submitted  to  us  as  certified  or  photostated  copies.

     Based  on  the foregoing, and subject to the qualifications and limitations
set  forth  herein,  it  is  our  opinion  that:

       1.          The  Company  has  authority to issue the Common Stock in the
manner  and  under  the  terms  set  forth  in  the  Registration  Statement.

<PAGE>
Silverman, Collura, Chernis & Balzano, P.C.


Hemispherx  Biopharma,  Inc.
April 1, 1999
Page 2

       2.          The  Common  Stock  has  been  duly authorized and is validly
issued, fully paid and non-assessable.  The Common Stock underlying the warrants
have  been duly authorized and when issued, delivered and paid for in accordance
with  the  warrants'  terms  terms,  will  be  validly  issued,  fully  paid and
non-assessable.

     We  express  no  opinion  with  respect to the laws other than those of the
State  of  New  York  and  Federal  Laws of the United States of America, and we
assume no responsibility as to the applicability thereto, or the effect thereon,
of  the  laws  of  any  other  jurisdiction.

     We  hereby  consent  to  the  filing  of this opinion as Exhibit 5.1 to the
Registration  Statement  and  its  use  as  part  of the Registration Statement.



                         Very  truly  yours,

                         /s/ SILVERMAN, COLLURA, CHERNIS & BALZANO, P.C.
                         -----------------------------------------------
                         SILVERMAN, COLLURA, CHERNIS & BALZANO, P.C.




                       Consent of Independent Accountants


The  Board  of  Directors
Hemispherx  Biopharma,  Inc.:


We consent to the use of our reports incorporated herein by reference and to the
reference  to  our  firm  under  the  heading  "Experts"  in  the  prospectus.



                                                 /s/  KPMG  LLP
                                                 -------------------------------
                                                 KPMG  LLP


Philadelphia,  Pennsylvania
March  30,  1999




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