PROBLEM TO BE SOLVED: To provide a preventive or therapeutic agent for functional gastrointestinal tract disorders, which are often difficult to treat, and abdominal pain after colonoscopy. A prophylactic or therapeutic agent for a functional gastrointestinal tract disorder containing a TRPM8 agonist as an active ingredient. [Selection diagram] None【課題】治療に難渋することが多い機能性消化管障害、及び、大腸内視鏡検査後の腹痛の予防又は治療剤を提供する。【解決手段】TRPM8アゴニストを有効成分とする機能性消化管障害の予防又は治療剤。【選択図】なし