发明名称 |
Sustained release pharmaceutical tablet of theophylline and production process thereof |
摘要 |
A sustained release pharmaceutical tablet comprising theophylline and ethyl cellulose uniformly dispersed therein in an amount of 5 to 200 parts by weight of ethyl cellulose based on 100 parts by weight of the theophylline, the hardness of the tablet being 0.5 to 16.0 kg. This sustained release pharmaceutical tablet can be prepared by uniformly mixing 100 parts by weight of theophylline and 5 to 200 parts by weight of ethyl cellulose, and compression molding the resultant mixture by a direct compression method to form a tablet.
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申请公布号 |
US4692337(A) |
申请公布日期 |
1987.09.08 |
申请号 |
US19840655738 |
申请日期 |
1984.09.28 |
申请人 |
NIKKEN CHEMICALS CO., LTD. |
发明人 |
UKIGAYA, TADASHI;OGAWA, KEIZABURO |
分类号 |
A61K9/20;A61K9/26;A61K31/52;(IPC1-7):A61K9/26 |
主分类号 |
A61K9/20 |
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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