Pepto Bismol is used to treat diarrhea and indigestion. Its active ingredient (bismuth subsalicylate) can cause your stool to turn black or gray. This side effect is harmless and temporary, lasting ...

Adderall may have digestive side effects, like diarrhea or constipation, in some people. Other side effects that affect the digestive system are possible. Doctors classify Adderall as a central ...

GLP-1 medications can alter bowel movements, with constipation and diarrhea being the most common side effects. These drugs slow digestion to help control appetite, which can lead to changes in stool ...

Alcohol can affect how the body breaks down nutrients, irritate the gut, and speed up the digestive system. All of these effects can impact bowel movements and cause either diarrhea or constipation.