Foamable vehicle and pharmaceutical compositions thereof
First Claim
1. A foamable hygroscopic pharmaceutical composition in a pressurized container, the foamable hygroscopic pharmaceutical composition comprising:
- i) a carrier composition comprising;
a. at least one hygroscopic substance selected from the group consisting of;
a polyethylene glycol (PEG) and a polyol at a sufficient concentration to provide an Aw value of the hygroscopic pharmaceutical composition of less than 0.9;
b. about 0.01% to about 5% by weight of the carrier composition of a gelling agent; and
c. 0% to about 25% by weight of the carrier composition of water; and
ii) a liquefied or compressed gas propellant;
wherein the foamable hygroscopic pharmaceutical composition forms a breakable foam upon release from the pressurized container;
wherein the breakable foam does not immediately collapse upon exposure to skin temperature; and
wherein the breakable foam breaks under shear force.
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Accused Products
Abstract
A hygroscopic pharmaceutical composition includes at least one hygroscopic substance at a concentration sufficient to provide an Aw value of at least 0.9 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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Citations
18 Claims
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1. A foamable hygroscopic pharmaceutical composition in a pressurized container, the foamable hygroscopic pharmaceutical composition comprising:
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i) a carrier composition comprising; a. at least one hygroscopic substance selected from the group consisting of; a polyethylene glycol (PEG) and a polyol at a sufficient concentration to provide an Aw value of the hygroscopic pharmaceutical composition of less than 0.9; b. about 0.01% to about 5% by weight of the carrier composition of a gelling agent; and c. 0% to about 25% by weight of the carrier composition of water; and ii) a liquefied or compressed gas propellant; wherein the foamable hygroscopic pharmaceutical composition forms a breakable foam upon release from the pressurized container;
wherein the breakable foam does not immediately collapse upon exposure to skin temperature; and
wherein the breakable foam breaks under shear force.- View Dependent Claims (2)
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3. A foamable pharmaceutical carrier composition in a pressurized container comprising:
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i) a carrier composition comprising; a. about 50% to about 98% by weight of the carrier composition of a polar solvent selected from the group consisting of (1) a polyol and (2) a polyethylene glycol (PEG); b. 0% to about 48% by weight of the carrier composition of a secondary polar solvent; c. about 0.01% to about 5% by weight of the carrier composition of a gelling agent; and d. 0% to about 25% by weight of the carrier composition of water; and ii) a liquefied or compressed gas propellant; wherein the foamable pharmaceutical carrier composition forms a breakable foam upon dispensing from the pressurized container;
wherein the breakable foam does not immediately collapse upon exposure to skin temperature; and
wherein the breakable foam breaks under shear force.- View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification