all inhibited the intestinal fluid secretion induced by 16,16-dimethyl prostaglandin e2 and castor oil-induced diarrhea in rats as a function of dose , the order of potency being loperamide approximately equal to diphenoxylate greater than chlorpromazine greater than promethazine greater than amitriptyline .
C0007343
castor oil
C0011991
diarrhea