Pepto-Bismol - How long will your stool be dark for?
Medically reviewed by Drugs.com. Last updated on Oct 14, 2024.
Took about 3 doses on Thursday and 1 dose on Friday and it's Monday and my stool is still black?
Dark colored / black stools are a common side effect and can last for several days after you stop taking Pepto-Bismol. This is not a serious side effect.
Give it a few more days and it should disappear.
Dark colored bowel motions can also be a sign of gastrointestinal bleeding so if it continues or you are concerned please see your Doctor.
See: https://www.drugs.com/mtm/pepto-bismol.html
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