Abstract: A method of performing photodynamic therapy is provided. The method includes applying, to the skin of a patient, a topical composition. The topical composition includes 5-aminolevulinic acid (ALA) hydrochloride, and a vehicle comprising at least one chelating agent to enhance accumulation of protoporphyrin IX (PpIX) in the skin. The method further includes incubating the topical composition, and following incubation, applying, to the skin, heat from a heat source for at least a first time period.

Abstract: Methods and topical compositions for the treatment of a dermatological disorder are provided. The topical composition includes 5-aminolevulinic acid, at least one penetration enhancer and at least one chelating agent. Further, methods and topical compositions for use in photodynamic therapy are disclosed, in which the topical composition is applied to the affected area of a patient for a period in the range of about 15 minutes to about 10 hours.

Abstract: The present invention provides for a storage stable pharmaceutical liquid solution for oral administration having a pharmaceutically effective amount of an antihistamine and having a purity equal to or greater than about 99% by weight-based HPLC assay, residual solvents of less than about 0.5%, and a total impurity of less than about 0.2%. The storage stable solution preferably contains cetirizine. The present invention further provides a process of preparing the storage stable pharmaceutical liquid solution as well as a method of treating a mammal with a therapeutically effective amount of cetirizine in the stable pharmaceutical liquid solution.

Abstract: The present invention relates to a pharmaceutical composition for oral administration comprising an exceptionally labile active agent, a stabilizing vehicle comprising liquid triglycerides and a desiccant, wherein the composition is storage stable for an extended period without substantial degradation of the active agent.

Abstract: The present invention provides for a storage stable pharmaceutical liquid solution for oral administration having a pharmaceutically effective amount of an antihistamine and having a purity equal to or greater than about 99% by weight-based HPLC assay, residual solvents of less than about 0.5%, and a total impurity of less than about 0.2%. The storage stable solution preferably contains cetirizine. The present invention further provides a process of preparing the storage stable pharmaceutical liquid solution as well as a method of treating a mammal with a therapeutically effective amount of cetirizine in the stable pharmaceutical liquid solution.