| 摘要 |
[Problem] The present invention aims to provide an agent for the prophylaxis or treatment of irritable bowel syndrome. [Solving Means] An agent for the prophylaxis or treatment of irritable bowel syndrome, containing a compound having a TGR5 receptor agonist activity, a fused ring compound represented by the formula wherein ring A is an optionally substituted aromatic ring, and ring B′ is a 5- to 9-membered ring having one or more substituents, or a salt thereof as an active ingredient.
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