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US4772475A Controlled-release multiple units pharmaceutical formulation 失效
控制释放多单位药物制剂

Controlled-release multiple units pharmaceutical formulation
摘要:
A pharmaceutical controlled-release individual unit or multiple units formulation in which the individual unit comprises a granulation product obtained by adding a release controlling agent to a mixture of a physiologically active substance and units-forming substance(s) and granulating and resultant mixture, said granulation product (granules) being substantially not disintegrated but gradually releasing the physiologically active substance in the gastrointestinal tract.
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