发明授权
- 专利标题: Controlled release pharmaceutical preparation
- 专利标题(中): 控制释放药物制剂
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申请号: US723031申请日: 1991-06-28
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公开(公告)号: US5137733A公开(公告)日: 1992-08-11
- 发明人: Kazuo Noda , Masao Kobayashi , Takashi Osawa , Shigeyuki Ishikawa
- 申请人: Kazuo Noda , Masao Kobayashi , Takashi Osawa , Shigeyuki Ishikawa
- 申请人地址: JPX Osaka
- 专利权人: Tanabe Seiyaku Co., Ltd.
- 当前专利权人: Tanabe Seiyaku Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX2-171762 19900628
- 主分类号: A61K9/28
- IPC分类号: A61K9/28 ; A61K9/32 ; A61K9/50 ; A61K9/52 ; A61K9/54 ; A61K9/58 ; A61K47/12 ; A61K47/32
摘要:
A controlled release pharmaceutical preparation comprising a core containing a medicinal compound and a coating layer containing a water-repellent salt and a water-insoluble and slightly water-permeable acrylic polymer having trimethylammoniumethyl group. Said preparation releases a medicinal compound in a sigmoid type dissolution pattern irrespective of the PH of a dissolution medium.
公开/授权文献
- US5946310A Asynchronous transfer mode switch 公开/授权日:1999-08-31
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