METHOD OF INDUCING TOPICAL ANESTHESIA AND TRANSDERMAL PATCH
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United States of America Patent
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app pub date -
Jan 15, 2009
filing date -
Jul 24, 2006
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Abandoned
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Abstract
Disclosed is a method of inducing topical anesthesia in a tissue or organ of an animal comprising providing an aqueous gel formulation comprising water, an anesthetic (e.g., lidocaine hydrochloride), a viscoelastic polymer, and a tonicity modifier, wherein the aqueous gel formulation is free of preservatives and phosphate buffer, is isotonic with physiological fluids, and is sterile and has low particulate count. Also disclosed are a transdermal patch comprising the aqueous gel formulation suitable for applying on the skin of a patient and a method of controlling pain therewith.
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