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Dicarboxylic acid foamable vehicle and pharmaceutical compositions thereof

DC
  • US 10,322,085 B2
  • Filed: 11/13/2018
  • Issued: 06/18/2019
  • Est. Priority Date: 10/25/2002
  • Status: Expired due to Term
First Claim
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1. A foamable composition comprising a carrier and a liquefied or compressed gas propellant, wherein the carrier comprising:

  • (a) about 15% by weight of the carrier of azelaic acid;

    (b) about 2% to about 50% by weight of the carrier of a hydrophobic solvent;

    (c) a polar solvent;

    (d) a surface-active agent;

    (e) a polymeric agent; and

    (f) water; and

    wherein the surface-active agent comprises a combination of at least two surface-active agents and wherein there is a difference of about 4 or more units between the HLB values of the at least two surface-active agents;

    wherein combined amount of the polymeric agent and the surface-active agent is about 0.05% to about 10% by weight of the carrier; and

    wherein the liquefied or compressed gas propellant is present at about 3% to about 25% by weight of the composition.

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