Topical diclofenac patch
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United States of America Patent
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Jan 26, 2010
Grant Date -
Sep 18, 2003
app pub date -
May 22, 2002
filing date -
May 23, 2001
priority date (Note) -
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Abstract
The invention provides an analgesic anti-inflammatory patch of a hydrophobic type for topical application containing, in a Pressure Sensitive Adhesive (PSA), diclofenac sodium, pyrrolidone or a derivative thereof, a polyhydric alcohol fatty acid ester, and an organic acid. The patch exerts the following effects: (1) diclofenac sodium is effectively and continuously released from a Pressure Sensitive Adhesive (PSA) and percutaneously absorbed, thereby attaining sustained, excellent pharmaceutical and pharmacological effects; (2) the patch per se has high tackiness and safety; and (3) diclofenac sodium remains stable in the Pressure Sensitive Adhesive (PSA).
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