发明名称 |
Prolonged release drug dosage forms based on modified low viscosity grade hydroxypropylmethylcellulose |
摘要 |
A carrier base material combined with a therapeutically active medicament and shaped and compressed to a solid unit dosage form having a controlled and prolonged release pattern upon administration, the carrier base material being a mixture of one or more nonionic cellulose ethers and an anionic surfactant, and wherein at least one of the cellulose ethers is a modified hydroxypropylmethylcellulose having a number average molecular weight of less than 50,000 and has been modified by successive or concurrent exposure to moisture and air.
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申请公布号 |
US4540566(A) |
申请公布日期 |
1985.09.10 |
申请号 |
US19840596095 |
申请日期 |
1984.04.02 |
申请人 |
FOREST LABORATORIES, INC. |
发明人 |
DAVIS, STANLEY S.;GAYLORD, NORMAN G. |
分类号 |
A61K9/20;A61K9/22;(IPC1-7):A61K9/22;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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