Drug – bio-affecting and body treating compositions – Lymphokine
Patent
1990-05-01
1990-11-20
Rose, Shep K.
Drug, bio-affecting and body treating compositions
Lymphokine
424441, A61K 926, A61K 3178
Patent
active
049717910
ABSTRACT:
This disclosure relates to drug-polymer matrix compositions comprising an active ingredient having an amine or amido group and a pharmaceutically acceptable copolymer having a plurality of carboxylic acid and ester groups wherein the matrix dissociates in a media having a pH of less than 4, thereby releasing the active ingredient into the media.
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Damani Nalinkant C.
Tsau Josef H.
Mohl Douglas C.
Rose Shep K.
Schaeffer Jack D.
The Procter & Gamble & Company
Zerby Kim William
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