Topical capsaicin preparation
AssigneeMaruishi Pharmaceutical Co., Ltd.
InventorsTAKASHI TAMURA, URAO KAWAKAMI, YUICHI TERATANI, MASAKAZU YOSHIMURA, MASAHIKO SETO
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Abstract
A topical capsaicin preparation for the treatment of painful cutaneous disorders and neural dysfunction is disclosed. The preparation contains a nonionic, amphoteric or cationic surfactant in an amount effective to eliminate or substantially ameliorate burning pain caused by capsaicin.
Claims11
A topical preparation comprising, in admixture with a pharmaceutically acceptable carrier for topical application, (a) an amount of capsaicin effective in long- term administration to cause insensitivity of sensory nerves to painful stimuli associated with painful cutaneous disorders and neural dysfunction, and (b) an amount of a nonionic, amphoteric or cationic surfactant effective to eliminate or substantially ameliorate the initial stinging pain caused by capsaicin.
Dependencies are inferred from the claim text.