A therapeutic agent for impaired gastric accommodation which contains as an active ingredient a compound represented by the general formula (1): (wherein R 1 represents a hydrogen atom, a hydroxyl group or a halogen atom A represents a furyl group, a thienyl group, a thiazolyl group or an oxazolyl group R 2 and R 3 each represents an alkyl group with 1 to 5 carbon atoms and n represents an integer of 2 to 4), or an acid addition salt thereof.
