发明名称 |
EXTENDED, CONTROLLED RELEASE PHARMACEUTICAL COMPOSITIONS COMPRISING CHARGED POLYMERS |
摘要 |
The present invention relates to a delivery system for pharmaceutical compositions relying in part on an ionic interaction to control and facilitate release of the treating agent. More specifically, the invention relates to an extended controlled-release system having an ionic treating agent and an ionic polymer, wherein the polymer is sufficiently ionized to release the treating agent in a controlled manner over an extended period of time and the composition does not require an emulsion system for administering the treating agent.
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申请公布号 |
CA2503383(C) |
申请公布日期 |
2013.03.12 |
申请号 |
CA20032503383 |
申请日期 |
2003.04.25 |
申请人 |
COLUMBIA LABORATORIES (BERMUDA) LIMITED |
发明人 |
LEVINE, HOWARD L.;BOLOGNA, WILLIAM J. |
分类号 |
A61K9/22;A61K;A61K9/00;A61K9/20;A61K9/70;A61K31/00;A61K31/137;A61K31/192;A61K31/245;A61K31/554;A61K47/32;A61P |
主分类号 |
A61K9/22 |
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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