A bout of diarrhea can be a very uncomfortable experience – but you can take steps to help relieve it. IMODIUM products contain an active ingredient called Loperamide, which works by slowing down the movement of fluid through the gut. This allows for overall greater absorption of valuable fluids and salts back into your system and treats diarrhea symptoms. Please refer to product labelling before use. Although IMODIUM stops diarrhea, it will not treat the cause of it. Whenever possible, the cause of diarrhea should also be treated.