Compositions and in situ methods for forming films on body tissue
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United States of America Patent
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Jan 14, 1992
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app pub date -
Feb 6, 1991
filing date -
May 2, 1988
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Abstract
A film-forming composition for topical application of medicaments to body tissues. The film-forming composition includes hydroxypropyl cellulose; a non-toxic volatile solvent for said hydroxypropyl cellulose and said reaction product, and an esterification agent which reacts with the hydroxypropyl cellulose to form a reaction product which is soluble in the solvent. The medicinal compound is selected from the group consisting of hydrocortisone, hydrocortisone acetate, betamethasone dipropionate, triamainolone acetonide, lidocaine hydrochloride, dibucaine hydrochloride.
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