Substantially non-aqueous foamable petrolatum based pharmaceutical and cosmetic compositions and their uses
First Claim
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1. A non-aqueous, substantially non-alcoholic foamable composition comprising:
- a foamable carrier and at least one liquefied or compressed gas propellant, the foamable carrier comprising;
(1) a petrolatum or mixtures thereof at a concentration of about 25% to about 95% by weight of the foamable carrier;
(2) a hydrophobic solvent at a concentration of about 1% to about 70% by weight of the foamable carrier; and
(3) at least one foam agent selected from the group consisting of a surfactant, a surfactant system, a foam adjuvant and combinations thereof;
at a concentration of about 0.1% to about 20% by weight of the foamable carrier;
wherein the amount of petrolatum is about the same as or in excess of the hydrophobic solvent and, together, the hydrophobic solvent and petrolatum are present in the foamable carrier at a concentration of at least about 80% by weight of the foamable carrier;
wherein the composition is substantially free of silicone oil;
wherein the composition is substantially free of short chain alcohols having up to 5 carbon atoms in their carbon chain skeleton and one hydroxyl group; and
wherein the composition is stored in a pressurized container and upon release expands to form a breakable foam which breaks upon application of shear force.
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Abstract
The present invention relates to stable substantially non-aqueous, non-alcoholic, non-silicone, foamable carrier compositions comprising petrolatum or mixtures thereof, at least one foam agent, at least one propellant, and with and without the addition of an active agent. The formulations may contain a solvent substantially miscible therein. The present invention further provides a method of treating, alleviating or preventing a disorder of mammalian subject in need thereof, comprising administering the above-mentioned compositions to an afflicted target site of said mammalian subject.
934 Citations
26 Claims
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1. A non-aqueous, substantially non-alcoholic foamable composition comprising:
- a foamable carrier and at least one liquefied or compressed gas propellant, the foamable carrier comprising;
(1) a petrolatum or mixtures thereof at a concentration of about 25% to about 95% by weight of the foamable carrier; (2) a hydrophobic solvent at a concentration of about 1% to about 70% by weight of the foamable carrier; and (3) at least one foam agent selected from the group consisting of a surfactant, a surfactant system, a foam adjuvant and combinations thereof;
at a concentration of about 0.1% to about 20% by weight of the foamable carrier;wherein the amount of petrolatum is about the same as or in excess of the hydrophobic solvent and, together, the hydrophobic solvent and petrolatum are present in the foamable carrier at a concentration of at least about 80% by weight of the foamable carrier; wherein the composition is substantially free of silicone oil;
wherein the composition is substantially free of short chain alcohols having up to 5 carbon atoms in their carbon chain skeleton and one hydroxyl group; andwherein the composition is stored in a pressurized container and upon release expands to form a breakable foam which breaks upon application of shear force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 23, 24, 25, 26)
- a foamable carrier and at least one liquefied or compressed gas propellant, the foamable carrier comprising;
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17. A non-aqueous, substantially non-alcoholic foamable composition comprising:
- a foamable carrier and at least one liquefied or compressed gas propellant, the foamable carrier comprising;
(1) a petrolatum or mixtures thereof at a concentration of about 46% to about 95% by weight of the foamable carrier; (2) a hydrophobic solvent at a concentration of about 1% to about 45% by weight of the foamable carrier; (3) at least one foam agent selected from the group consisting of a surfactant, a surfactant system;
a foam adjuvant and combinations thereof at a concentration of about 0.1% to about 15% by weight of the foamable carrier; and(4) an effective amount of an active pharmaceutical agent; wherein the ratio of the foamable carrier to the propellant ranges from about 100;
5 to about 100;
30;wherein the composition is substantially free of silicone oil;
wherein the composition is substantially free of short chain alcohols having up to 5 carbon atoms in their carbon chain skeleton and one hydroxyl group; andwherein the composition is flowable or flowable to a degree and or is shakable or substantially so when stored in a pressurized container and upon release expands to form a breakable foam which breaks upon application of shear force, and having no substantial or sustained cooling affect and having a foam hardness in the range of about 5 g to about 100 g. - View Dependent Claims (21, 22)
- a foamable carrier and at least one liquefied or compressed gas propellant, the foamable carrier comprising;
Specification