Skip to main content
An official website of the United States government
Español

Imodium

(ih-MOH-dee-um)
A drug used to treat diarrhea. Imodium works by binding to mu opioid receptors in the intestines, which slows the movement of the muscles in the intestines. This gives the body more time to absorb water and electrolytes from the feces (waste matter), resulting in firmer and less frequent bowel movements. Imodium is a type of synthetic opioid agonist that works only in the gut when used as directed. Also called loperamide hydrochloride.
Search NCI's Dictionary of Cancer Terms