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SUSTAINED RELEASE DRUG DELIVERY SYSTEM WHICH SUSTAINS DRUG RELEASES EFFECTIVELY IN GASTROINTESTINAL TRACT
SUSTAINED RELEASE DRUG DELIVERY SYSTEM WHICH SUSTAINS DRUG RELEASES EFFECTIVELY IN GASTROINTESTINAL TRACT
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机译:在胃肠道疾病中有效缓解药物释放的持续释放药物递送系统
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摘要
PURPOSE: Provided is a sustained release drug delivery system which sustains drug-releases effectively in the gastrointestinal tract and controls drug-release time. The system involves no orifice forming which occurs in the tablet and exhibits zero-order release of pharmaceutically active ingredients. CONSTITUTION: The sustained release drug delivery system is characteristically composed of: a crystalline nucleated material; a water absorption promoting layer which is formed on the outer surface of the crystalline nucleated material; a pharmaceutically active ingredient containing layer which is formed on the outer surface of the water absorption promoting layer; and a multiporous layer which is formed on the outer surface of the pharmaceutically active ingredient containing layer.
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