Form: 10-K

Annual report pursuant to Section 13 and 15(d)

March 31, 2011

EXHIBIT 21
 


 



 


Subsidiaries of the Registrant
 
 
MacroChem Corporation, a Delaware company
 
Virium Pharmaceuticals, Inc., a Delaware company
 
Somanta Pharmaceuticals, Inc., a Delaware company
 
Tacora Corporation, a Delaware company
 
Virologix Corporation, a Delaware company