AGENT FOR TREATING AND/OR PREVENTING SLEEP DISORDER

摘要

It is intended to provide an agent for treating and/or preventing sleep disorder containing as an active ingredient a thiazole derivative represented by the general formula (I) (in the formula, R1 represents a five-membered aromatic heterocyclic group containing at least one oxygen atom or the like, R2 represents halogen or the like, and R3 represents -NR10R11 (in the formula, R10 and R11 are the same or different and represent a hydrogen atom or the like) or the like) or a pharmacologically acceptable salt thereof. (I)