Method for preparing matrix-type pharmaceutical compositions through ultrasonic means to accomplish melting
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United States of America Patent
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Apr 15, 1997
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N/A
app pub date -
Jun 30, 1995
filing date -
Dec 31, 1992
priority date (Note) -
Expired
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Abstract
An 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.
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