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

August 7, 2006


Securities and Exchange Commission
100 F Street, NE
Washington, DC 20002

 
Re:
Hemispherx Biopharma, Inc.
   
Form S-1 Registration Statement File No. 333-108645

Dear Sir or Madam:

Hemispherx Biopharma, Inc. (“Hemispherx”) hereby withdraws its Amendment No. 1 to its Registration Statement on Form S-1 (SEC File No. 333-108645) filed with the Commission on August 4, 2006.
 
 

   
Very truly yours,
     
   
HEMISPHERX BIOPHARMA, INC.
     
     
 
By:
s/Robert Peterson
   
Robert Peterson,
   
Chief Financial Officer