[{"from": "human", "value": "Please give me some details about this molecule. [C][N][Branch1][C][C][C][=Branch1][C][=O][C][Branch2][Ring1][O][C][C][N][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][Branch1][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Cl][O][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a synthetic agent chemically related to the opiates with anti-diarrheal properties.  Loperamide decreases gastro-intestinal motility by effects on the circular and longitudinal muscles of the intestine. Part of its anti-diarrheal effect may be due to a reduction of gastro-intestinal secretion produced by opioid receptor binding in the intestinal mucosa. (NCI04)"}]