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US 5,514,698 AGranted
Antifungal vaginal cream composition
AssigneeOrtho Pharmaceutical Corporation
InventorsNawaz Ahmad, Barbara Brummer, Nandita M. Dalal, Rohinton Toddywala
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Abstract
A long-lasting antifungal vaginal cream composition having stable viscosity at human body temperature is disclosed.
Claims19
A long-lasting viscous antifungal vaginal cream composition comprising about 0.4 to 10.0% of an imidazole antifungal agent;
- about 1.0% to 5.0% of a fatty acid ester;
- about 1.0% to 25.0% of aliphatic alcohols;
- about 2.0% to 5.0% of a surfactant;
- about 0.02% to 0.20% of an antioxidant;
- a sufficient amount of inorganic base to adjust the pH range to a value of about 3.0 to 7.0 and water, said composition maintaining its viscosity when the temperature of the cream is raised to 37.degree. C.
2 more elements
A method for making a long-lasting viscous antifungal vaginal cream composition comprising the following steps:
- (a) mixing an oil phase comprising an aliphatic alcohol, an ester and a surfactant;
- (b) separately mixing an aqueous phase comprising water and a humectant;
- (c) separately, mixing surfactant, water and an antifungal agent and creating a slurry;
- (d) separately mixing an alkaline buffer compound and water;
- (e) adding said aqueous phase to said oil phase, mixing and cooling the resulting mixture;
- (f) after step (e), adding said slurry to the resulting mixture;
- and
- (g) adding the alkaline buffer compound and water mixture to adjust the pH of the resulting mixture.
5 more elements
A long-lasting viscous antifungal vaginal cream composition comprising about 0.4 to 10.0% of an imidazole antifungal agent;
- about 1.0% to 5.0% of a fatty acid ester;
- about 1.0% to 25.0% of aliphatic alcohols;
- about 2.0% to 5.0% of a surfactant;
- about 0.02% to 0.20% of an antioxidant;
- a sufficient amount of inorganic base to adjust the pH range to a value of about 3.0 to 7.0 and water, said surfactant having an HLB which is close to the HLB value of the oil phase of the composition.
2 more elements
Dependencies are inferred from the claim text.