The purpose of the present invention is to provide a novel therapeutic or prophylactic agent for diseases caused by glucose metabolism disorders. The present invention refers to a therapeutic or prophylactic agent for diseases caused by glucose metabolism disorders comprising, as an active ingredient, a 2-phenylthiazole compound represented by the following formula (I) or pharmaceutically acceptable salts thereof. Compound 1本發明的目的係提供一種新穎的起因於糖代謝異常疾病之治療藥或預防藥。本發明係含有下述式(I)所示之2-苯基噻唑化合物或該等之醫藥上所容許之鹽作為有效成分，起因於糖代謝異常疾病的治療藥或預防藥。
