Medically reviewed by Kumkum S. Patel, MD Key Takeaways Nocturnal diarrhea is diarrhea that wakes you up at night and can be ...

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 ...