Dicarboxylic acid foamable vehicle and pharmaceutical compositions thereof
DCFirst Claim
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.
8 Assignments
Litigations
0 Petitions
Accused Products
Abstract
The present invention teaches a foamable pharmaceutical carrier comprising a benefit agent, selected from the group consisting of a dicarboxylic acid and a dicarboxylic acid ester; a stabilizer selected from the group consisting of at least one surface-active agent; at least one polymeric agent and mixtures thereof; 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, wherein the benefit agent, stabilizer and solvent are selected to provide a composition that is substantially resistant to aging and to phase separation and or can substantially stabilize other active ingredients. The invention further relates to a foamable composition further containing a liquefied hydrocarbon gas propellant.
1025 Citations
22 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification