Foamable vehicle and pharmaceutical compositions thereof
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United States of America Patent
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May 2, 2017
Issued Date -
N/A
app pub date -
Mar 11, 2013
filing date -
Aug 4, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A hygroscopic pharmaceutical composition includes at least one hygroscopic substance at a concentration sufficient to provide an Aw value of less than 0.9 or about 0.9 to about 0.7 and an antiinfective agent. A foamble pharmaceutical carrier includes about 50% to about 98% of a polar solvent selected from the group consisting of a polyol and PEG; 0% to about 48% of a secondary polar solvent; about 0.2% to about 5% by weight of a surface-active agent; about 0.01% to about 5% by weight of at least one polymeric agent; and a liquefied or compressed gas propellant at a concentration of about 3% to about 25% by weight of the total composition.
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