Lopamide

Loperamide is a synthetic phenylpiperidine derivative that functions as a mu-opioid receptor agonist, primarily employed as an antidiarrheal medication to reduce gastrointestinal motility and secretion in the treatment of acute nonspecific diarrhea and chronic diarrhea associated with inflammatory bowel disease.[1][2] By binding to opioid receptors in the intestinal myenteric plexus, it inhibits peristalsis, prolongs gut transit time, and enhances absorption of water and electrolytes, thereby decreasing stool frequency and volume.[1][2]