A mouse model in a delay reward task was established and, as a result, a method for screening an impulse control drug was successfully provided by using the mouse model. On the basis of analytical data using this mouse model, it was clarified that a serotonin receptor 5-HT3 antagonist has an effect of controlling impulsive choice. As a result, provided are an impulse control drug to be used against hyper impulsive choice, said drug comprising the serotonin receptor 5-HT3 antagonist as an active ingredient, and a therapeutic method therefor.
METHOD FOR SCREENING IMPULSE CONTROL DRUG, AND IMPULSE CONTROL DRUG