Controlled release O-desmethylvenlafaxine formulations
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United States of America Patent
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Issued Date -
Aug 31, 2006
app pub date -
Feb 28, 2006
filing date -
Feb 28, 2005
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Abandoned
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Abstract
In certain embodiments, the present invention is directed to a controlled release oral dosage form comprising a therapeutically effective amount of O-desmethylvenlafaxine or a pharmaceutically acceptable salt thereof and a controlled release material; wherein the amount of O-desmethylvenlafaxine or pharmaceutically acceptable salt thereof released at 1 hour in 900 mL 0.1 N HCl (pH 1.5) with 40% EtOH using USP Apparatus II at 50 rpm is within 25% of the amount of O-desmethylvenlafaxine or pharmaceutically acceptable salt thereof released at 1 hour in 900 mL 0.1 N HCl (pH 1.5) using USP Apparatus II at 50 rpm.
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