发明名称 |
Aggregates of spherical multivalent metal alginate microparticles and methods of making them |
摘要 |
The present invention discloses a process for preparing controlled-release preparations which can rapidly release 99% or more of a slightly soluble medicament (which has by itself shows a slow dissolution rate) in the upper part of the small intestine and compositions thereof. The present invention also discloses a process comprising carrying a slightly soluble medicament which has a slow intestinal dissolution rate on aggregates of the spherical microparticles of a multivalent metal alginate, in which each of the secondary particles (i.e., the aggregates) has a specific surface area ranging from 1 to 280 m<2>/g and compositions thereof.
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申请公布号 |
US2003206953(A1) |
申请公布日期 |
2003.11.06 |
申请号 |
US20010878121 |
申请日期 |
2001.06.08 |
申请人 |
HOM-MA TAKESHI;MYO NAGAYOSHI;SATO TAKAYA;NANBU HIRONOBU |
发明人 |
HOM-MA TAKESHI;MYO NAGAYOSHI;SATO TAKAYA;NANBU HIRONOBU |
分类号 |
A61K9/14;A61K9/16;A61K9/26;C08L5/04;(IPC1-7):A61K9/26 |
主分类号 |
A61K9/14 |
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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