Process for preparing a pharmaceutical composition with anti-inflammatory and analgesic activity for administration via a patch for external use, and composition thus obtained
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United States of America Patent
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May 17, 2011
Grant Date -
Sep 3, 2009
app pub date -
Mar 3, 2008
filing date -
Mar 3, 2008
priority date (Note) -
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Abstract
The present invention relates to a process for preparing a pharmaceutical composition with anti-inflammatory and analgesic activity for administration via a patch for external use, its components including as active principle a salt of diclofenac, 2[(2,6-dichlorophenyl)amino]benzene-acetic acid, with a cyclic organic base chosen from hydroxyethylpyrrolidine or hydroxyethylpiperidine characterized in that said active principle is added to a mixture of one or more of said components, in the form of a solution in water and propylene glycol in a ratio of about 1:1 parts by weight.
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