发明名称 |
CONTROLLED SLOW RELEASE TABLET |
摘要 |
The release pattern of a dispersion type active agent dispenser can be improved by forming the device from a depleted zone containing the agent at a concentration no greater than the saturation and a non-depleted zone containing the agent dispersed in the matrix at a uniform concentration greater than saturation. The depleted zone is disposed between the surface through which the agent is to be dispensed and at least a substantial portion of the non-depleted zone with the interface therebetween disposed at a non-uniform distance from the releasing surface. Certain embodiments are particularly useful for the transdermal administration of drugs. |
申请公布号 |
AU2717284(A) |
申请公布日期 |
1984.11.29 |
申请号 |
AU19840027172 |
申请日期 |
1984.04.19 |
申请人 |
ALZA CORP. |
发明人 |
ALEJANDRO ZAFFARONI;PATRICK S.L. WONG |
分类号 |
B01J4/00;A61K9/20;A61K9/26;A61K9/70;A61M31/00 |
主分类号 |
B01J4/00 |
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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