Disclosed is a therapeutic and/or prophylactic agent for anxiety disorders, which contains a thiazole derivative represented by general formula (I) (wherein R1 represents an aryl group or the like, and R2 represents a pyridyl group or the like) or a pharmaceutically acceptable salt thereof as an active ingredient. In one embodiment the agent is N-[4-(2-furyl)-5-(tetrahydropyran-4-ylcarbonyl)thiazol-2-yl)]-6-methylpyridine-3-carboxamide (IC).
