发明名称 |
Prolonged-release liquid type of pharmaceutical preparation comprising drug-resin complex and benzoate preservative |
摘要 |
The present invention provides a prolonged-release liquid type of pharmaceutical preparation prepared by coating a pharmaceutically active drug-ion exchange resin complex which was treated previously with an impregnating agent, with a water permeable diffusion barrier material, followed by suspending the coated complex in a solution containing preservatives. The formulation of the present invention does not develop the rupture of the diffusion barrier film even in a solution containing preservatives. Therefore the formulation of the present invention is a prolonged-release liquid type of pharmaceutical preparation which is stable and does not lose the controlled release of the active ingredient.
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申请公布号 |
US5368852(A) |
申请公布日期 |
1994.11.29 |
申请号 |
US19930041046 |
申请日期 |
1993.03.31 |
申请人 |
ROHNTO PHARMACEUTICAL CO., LTD. |
发明人 |
UMEMOTO, MITSUO;HIGASHI, KIYOTSUGU;MITANI, YOUKO |
分类号 |
A61K9/107;A61K9/00;A61K9/16;A61K9/50;A61K31/135;A61K31/137;A61K31/485;A61K47/14;A61K47/38;A61K47/48;A61P11/14;(IPC1-7):A61K31/74;A61K9/08 |
主分类号 |
A61K9/107 |
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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