发明名称 |
Sustained release aspirin |
摘要 |
A sustained release aspirin dosage form permits the continuous delivery of aspirin into the gastrointestinal tract for a period of at least eight hours. The sustained release aspirin dosage form comprises a plurality of polymerically coated aspirin crystals each of which comprises an aspirin seed. The majority of aspirin seeds have a mesh size of from about 30 to about 60 mesh. Each of the aspirin seeds is individually coated with a polymeric mixture, which comprises from about 1.5 to about 15 parts by weight ethylcellulose and about one part by weight hydroxypropylcellulose.
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申请公布号 |
US4508702(A) |
申请公布日期 |
1985.04.02 |
申请号 |
US19840576777 |
申请日期 |
1984.02.03 |
申请人 |
KEY PHARMACEUTICALS, INC. |
发明人 |
HSIAO, CHARLES H. |
分类号 |
A61K9/50;A61K31/60;(IPC1-7):A61K9/20;A61K9/28;A61K9/48 |
主分类号 |
A61K9/50 |
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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