申请人:Egyt Gyogyszervegyeszeti Gyar
公开号:US04539199A1
公开(公告)日:1985-09-03
Pharmaceutical compositions for sustained release of pharmaceutical compounds comprising a reaction product of a water soluble salt of a pharmaceutically active compound containing a primary, secondary or tertiary amino group, and an alkali or ammonium salt of a synthetic copolymer containing an acid group, and selected from the group consisting of methacrylic acid/methacrylic acid methyl ester, methacrylic acid/acrylic acid methyl ester and methacrylic acid/acrylic acid methyl ester/methacrylic acid methyl ester copolymers and a pharmaceutically acceptable excipient. The water soluble salt of a pharmaceutically active compound containing a primary, secondary or tertiary amino group is reacted in aqueous medium with an alkali or ammonium salt of a copolymer selected from the group consisting of the above mentioned copolymers, and the resulting product is converted into a pharmaceutical composition.
制备药物复合物的制药组合物,包括具有一种主要、次要或三级氨基团的药物活性化合物的水溶性盐和含有酸基的合成共聚物的碱性或铵盐的反应产物,所述合成共聚物选自甲基丙烯酸/甲基丙烯酸甲酯、甲基丙烯酸/丙烯酸甲酯和甲基丙烯酸/丙烯酸甲酯/甲基丙烯酸甲酯共聚物,以及药用可接受的辅料。具有一种主要、次要或三级氨基团的药物活性化合物的水溶性盐在水介质中与上述共聚物之一的碱性或铵盐反应,得到的产物转化为制药组合物。