MICROCAPSULES CONTAINING RETINOIDS, METHOD OF PREPARING SAME, AND PHARMACEUTICAL COMPOSITIONS CONTAINING SAME
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United States of America Patent
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app pub date -
May 30, 2013
filing date -
Jun 1, 2012
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Abandoned
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Abstract
Microcapsules are described that include a pharmaceutical active agent selected from among retinoids, an anionic hydrophilic polymer (in particular, gum arabic), and a cationic hydrophilic polymer (in particular, type-A gelatin). Also described, are methods for preparing such microcapsules, topical pharmaceutical compositions including such microcapsules, and dermatological uses thereof.
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