Diarrhea can often be stopped by using over-the-counter (OTC) medications such as loperamide (Imodium) or bismuth subsalicylate (Pepto-Bismol). Remember, though, that diarrhea caused by a virus or ...

Medically reviewed by Kumkum S. Patel, MD Key Takeaways Chronic diarrhea can cause weight loss due to loss of body fluids.Weight loss from diarrhea is mostly water weight and will likely ...