Venlafaxine formulations and methods of preparing the same
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United States of America Patent
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Jun 29, 2010
Grant Date -
Jun 14, 2007
app pub date -
Feb 16, 2007
filing date -
Dec 30, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of forming a multi-particulate dosage form using rotary granulation is described in which polyethylene oxide is employed as s binder in a rotary granulation process. A multi-particulate oral dosage form comprises a plurality of pellets, the pellets comprising a core having disposed thereon a core composition layer. The core composition layer comprises venlafaxine and a binder, wherein the binder comprises a polyethylene oxide. In other embodiments, the binder comprises a 1:2:1 bis (butyl methacrylate-co-(2-dimethylaminoethyl)methacrylate-co-methyl methacrylate.
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