Delivery systems for quaternary and related compounds
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United States of America Patent
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Apr 5, 1994
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N/A
app pub date -
Jul 12, 1989
filing date -
Jun 6, 1986
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Abstract
The invention relates to a method for topical application of a pharmaceutically or therapeutically active agent through the use of a covalent chitosan derivative or chitosonium polymer. The present invention is particularly well suited for the topical delivery of pharmaceutically active quaternary ammonia compounds of the formula: ##STR1## wherein R is alkyl having between 5 and 11 carbon atoms.
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