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Penetrating pharmaceutical foam

  • US 8,741,265 B2
  • Filed: 03/04/2013
  • Issued: 06/03/2014
  • Est. Priority Date: 10/25/2002
  • Status: Active Grant
First Claim
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1. A foamable composition comprising a carrier and a liquefied or a compressed gas propellant, the carrier comprising:

  • i) about 0.1% to about 5% by weight of the carrier of a surface-active agent;

    ii) about 2% to about 75% by weight of the carrier of a liquid, non-volatile hydrophobic solvent;

    iii) about 0.01% to about 5% by weight of the carrier of a gelling agent; and

    iv) water,wherein the surface active agent is selected from the group consisting of polysorbate, a polyoxyethylene fatty acid ester, a polyoxyethylene alkyl ether, a sucrose ester, a partial ester of sorbitol, a partial ester of sorbitol anhydride, sodium methyl cocoyl taurate, sodium methyl oleoyl taurate, sodium lauryl sulfate, triethanolamine lauryl sulfate, a betaine, a mono-, di- or tri-ester of sucrose with food fatty acids (sucrose esters), a monoglyceride, a diglyceride, polyoxyethylene (20) sorbitan monostearate, polyoxyethylene (20) sorbitan monooleate, Myrj 45 (Polyoxyethylene (8) Stearate), Myrj 49 (polyoxyethylene (20) stearate), Myrj 59 (polyoxyethylene (100) stearate), a polyoxyethylene cetyl ether, a polyoxyethylene palmityl ether, a polyethylene oxide hexadecyl ether, Brij 52 (polyoxyethylene (2) cetyl ether), Brij 56 (polyoxyethylene (10) cetyl ether), sorbitan monolaurate, isoceteth-20, cocamidopropyl betaine, and Myrj 52 (polyoxyethylene 40 stearate);

    wherein a breakable foam forms upon dispensing the foamable composition.

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