Plus, when it’s time to see a doctor.

Medically reviewed by Gurdeep S. Sareen, PharmD Key Takeaways Take metformin with your evening meal to reduce diarrhea ...

Medically reviewed by Anju Goel, MD Key Takeaways Diarrhea is often contagious, especially when it's caused by viruses, bacteria, or parasites. Infectious diarrhea can spread by not washing hands ...