发明名称 |
A CONTROLLED RELEASE DRUG SUSPENSION DELIVERY DEVICE |
摘要 |
A device is disclosed for the controlled delivery of a beneficial agent, the device consisting of (i) a core comprising at least two layers, wherein at least one layer comprises a beneficial agent and a polymer which forms microscopic gel beads upon hydration and at least one layer which comprises a polymer which forms microscopic gel beads upon hydration; and (ii) an impermeable, insoluble coating which adheres to and surrounds the core and contains apertures which provide an area for the hydration and release of the microscopic gel beads. |
申请公布号 |
HUT77370(A) |
申请公布日期 |
1998.03.30 |
申请号 |
HU19970001914 |
申请日期 |
1995.12.18 |
申请人 |
MERCK & CO. INC. |
发明人 |
PIPKIN,JAMES D.;RORK,GERALD S. |
分类号 |
A61K9/24;A61J3/10;A61K9/20;A61K9/32;A61K9/36 |
主分类号 |
A61K9/24 |
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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