发明名称 |
Pharmaceutical solid dispersions |
摘要 |
A composition comprises a solid dispersion comprising a low-solubility drug and at least one polymer. At least a major portion of the drug in the dispersion is amorphous. The polymer has a glass transition temperature of at least 100° C. measured at a relative humidity of fifty percent. Another aspect of the invention comprises the same composition except that the dispersion has a glass transition temperature of at least 50° C. at a relative humidity of fifty percent. In another aspect of the invention, a composition comprises a solid dispersion comprising a low-solubility drug and a stabilizing polymer. At least a major portion of the drug in the dispersion is amorphous. The composition also includes a concentration-enhancing polymer that increases the concentration of the drug in a use environment. The stabilizing polymer has a glass transition temperature that is greater than the glass transition temperature of the concentration-enhancing polymer at a relative humidity of 50%.
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申请公布号 |
US2004013734(A1) |
申请公布日期 |
2004.01.22 |
申请号 |
US20030459808 |
申请日期 |
2003.06.10 |
申请人 |
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发明人 |
BABCOCK WALTER C.;FRIESEN DWAYNE T.;NIGHTINGALE JAMES A. S.;SHANKER RAVI M. |
分类号 |
A61K47/38;A61K9/14;A61K9/16;A61K47/30;(IPC1-7):A61K9/14 |
主分类号 |
A61K47/38 |
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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