[Problem] To provided a compound which is useful as an MT1 and/or MT2 receptor agonist. [Means for Solution] The present inventors have conducted studies on MT1 and/or MT2 receptor agonists, and have found that an indole carboxamide compound has an MT1 and/or MT2 receptor agonistic action, thereby completing the present invention. The indole carboxamide compound of the present invention has the MT1 and/or MT2 receptor agonistic action as well as a low CNS penetration, and therefore, it can be used as an agent for preventing and/or treating urological diseases； in one embodiment, lower urinary tract symptoms； in another embodiment, urine storage symptom, in another embodiment, urinary incontinence； in a still another embodiment, stress urinary incontinence； and the like.
