MODIFIED RELEASE EMULSIONS FOR APPLICATION TO SKIN OR VAGINAL MUCOSA
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United States of America Patent
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Issued Date -
Aug 11, 2011
app pub date -
Sep 21, 2009
filing date -
Oct 8, 2008
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Abandoned
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Abstract
Modified release oil in water emulsions that delivers drugs to a target tissue. The emulsions according to the present invention contain the lipophilic active ingredient completely dissolved into the hydrophobic internal phase stabilised by a polymeric surfactant. The presence of this polymer around the hydrophobic droplets avoids the migration of the active ingredient into the external hydrophilic phase and, consequently, its re-crystallization.
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