Controlled release preparations comprising tramadol and topiramate
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United States of America Patent
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Issued Date -
Jul 6, 2006
app pub date -
Dec 12, 2003
filing date -
Dec 13, 2002
priority date (Note) -
Abandoned
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Abstract
This invention relates to an oral pharmaceutical preparation, suitable for dosing every 24 hours, comprising a substrate, which substrate comprises a pharmaceutically effective amount of tramadol or a salt thereof and a pharmaceutically effective amount of topiramate and wherein said substrate may be coated with a controlled release coating; said preparation having a specific dissolution rate in vitro.
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