Method for preparing matrix-type pharmaceutical compositions through ultrasonic means to accomplish melting

摘要

PCT No. PCT/FI93/00575 Sec. 371 Date Jun. 30, 1995 Sec. 102(e) Date Jun. 30, 1995 PCT Filed Dec. 31, 1993 PCT Pub. No. WO94/15588 PCT Pub. Date Jul. 21, 1994An ultrasonic processing method by which polymer/drug composites can be quickly and efficiently molded to form matrix-type drug delivery systems is disclosed. The advantages of the method include speed and good control of the process. It also causes less degradation in polymers and/or drugs than most conventional processing methods.