This invention the chemical compound which possesses the chemical formula of useful specification in remedy or prevention of hypersensitivity intestinal syndrome or is something regarding that professional drag, and the constituent which includes this kind of chemical compound as the active ingredient. In addition as for this invention, the above-mentioned chemical compound or remedy or the tonnage which prevention of the constituent study is effective it is something regarding remedy of the hypersensitivity intestinal syndrome which includes the fact that it prescribes to the individual whose remedy or prevention of hypersensitivity intestinal syndrome is necessary or preventive manner.本発明は、過敏性腸症候群の治療または予防に有用な特定の化学式を有する化合物またはそのプロドラッグ、及びこのような化合物を有効成分として含む組成物に関するものである。本発明はまた、上記化合物または組成物の治療または予防学的に有効な量を過敏性腸症候群の治療または予防が必要な個体に投与することを含む過敏性腸症候群の治療または予防方法に関するものである。