发明名称 |
Controlled release pharmaceutical preparation and method for producing the same. |
摘要 |
<p>A controlled release pharmaceutical preparation comprising (a) a core containing a pharmaceutically active substance and an organic acid, and (b) a coating film formed on the surface of the core by aqueous coating of a water-insoluble and slightly water-permeable acrylic polymer containing a trimethylammonium-ethyl group, which exhibits well controlled dissolution and release of the pharmaceutically active substance when administered and can maintain the desired blood level of the active substance for a long period of time, and a method for producing the preparation.</p> |
申请公布号 |
EP0436370(A1) |
申请公布日期 |
1991.07.10 |
申请号 |
EP19900314148 |
申请日期 |
1990.12.21 |
申请人 |
TANABE SEIYAKU CO., LTD. |
发明人 |
NODA, KAZUO;YOSHINO, HIROYUKI;HIRAKAWA, YOSHIYUKI;NARISAWA, SHINJI |
分类号 |
A61K9/58;A61K9/28;A61K9/50;A61K9/52;A61K9/54;A61K47/32 |
主分类号 |
A61K9/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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