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Foamable vehicle and vitamin and flavonoid pharmaceutical compositions thereof

  • US 20080069779A1
  • Filed: 09/10/2007
  • Published: 03/20/2008
  • Est. Priority Date: 08/04/2003
  • Status: Abandoned Application
First Claim
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1. A foamable hygroscopic vitamin and or flavonoid containing composition comprising:

  • a. at least one agent selected from the group consisting of vitamins and flavonoids; and

    b. at least one hygroscopic solvent at a sufficient concentration to provide an Aw value of the hygroscopic vitamin and or flavonoid containing composition of less than 0.9;

    c. a foam stabilizer selected from the group consisting of at least one surface-active agent; and

    at least one polymeric agent selected from the group consisting of a bioadhesive agent, a gelling agent, a film forming agent and a phase change agent and mixtures thereof; and

    d. a hydrocarbon propellant at a concentration of about 3% to about 25% by weight of the total composition; and

    wherein the composition is contained in a pressurized container to which a vacuum was applied prior to filling with a hydrocarbon propellant, is substantially flowable and provides a foam upon release;

    wherein applying a vacuum to and filling a canister containing the composition with hydrocarbon propellant contributes to stabilize the agent against degradation.

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