Some people think a diarrhea remedy has to cause constipation to work. Not true. IMODIUM® relies on an active ingredient that helps intestines function normally again. That’s important because diarrhea often reduces your ability to absorb water and nutrients. That’s why treating diarrhea with IMODIUM® is proven to help you feel better, fast. Often with just one treatment. Next time you have diarrhea, think IMODIUM®.