| 摘要 |
The present invention relates to a foamable therapeutic composition comprising: (a) a therapeutically effective concentration of at least one active agent selected from the group consisting of a channel agent, a cholinergic agent, and a nitric oxide donor; and (b) a foamable carrier comprising: i. about 50% to about 98% of a solvent selected from the group consisting of water; a hydrophilic solvent; a hydrophobic solvent; a potent solvent; a polar solvent, a silicone, an emollient, and mixtures thereof; ii. 0% to about 48% of a secondary solvent selected from the group consisting of water; a hydrophilic solvent; a hydrophobic solvent; a potent solvent; a polar solvent, a silicone, an emollient, a co-solvent, a penetration enhancer and mixtures thereof; iii. a surface-active agent; iv. about 0% to about 5% by weight of at least one polymeric agent; and v. a liquefied or compressed gas propellant at a concentration of about 3% to about 25% by weight of the total composition; wherein the composition is housed in a container and is substantially flowable, and which upon release expands to form a breakable foam; and wherein the foamable carrier is selected to generate a foam of good to excellent quality. The invention further provides a method of treating, alleviating or preventing a disorder of mammalian subject, comprising administering such a composition to an afflicted target site.
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