EXHIBIT 22


                             U.S. BIOSCIENCE, INC.
                                 Subsidiaries

 
 
                                                             Jurisdiction of
                                                             Incorporation 
                                                             -------------  

                                                            
USB Pharma B.V.   ..........................                 The Netherlands
                                                       
USB Pharma Limited   .......................                 United Kingdom
                                                       
USB Resources, Inc.   ......................                 Delaware
                                                       
USB Technology, Inc.   .....................                 Delaware