发明名称 |
Medical device for delivering drug to pH environments greater than 3.5 |
摘要 |
An osmotic device is disclosed for delivering a beneficial agent to a first environment having a pH of 1.0 to 3.5 inclusive and to a second environment having a pH of greater than 3.5 to 8.0. The device maintains its integrity in the first environment and loses its integrity in the second environment.
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申请公布号 |
US4587117(A) |
申请公布日期 |
1986.05.06 |
申请号 |
US19850693649 |
申请日期 |
1985.01.22 |
申请人 |
ALZA CORPORATION |
发明人 |
EDGREN, DAVID;WONG, PATRICK S. L.;THEEUWES, FELIX |
分类号 |
A61K9/00;A61K9/32;(IPC1-7):A61K9/32;A61K9/36 |
主分类号 |
A61K9/00 |
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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