Medical Definition of antimotility
: inhibiting or slowing gastrointestinal motility The caplets … contain an antimotility agent that relieves the symptoms of diarrhea by slowing intestinal movement.—James T. Yenckel, The Washington Post, 19 Aug. 1990 Drugs to improve symptoms, particularly antimotility drugs such as loperamide and diphenoxylate hydrochloride, can reduce the number of stools passed and may be useful in controlling the stool rate with watery diarrhea.—Herbert L. DuPont, The New England Journal of Medicine, 15 Oct. 2009
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