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Pepto-Bismol - How long will your stool be dark for?

Took about 3 doses on Thursday and 1 dose on Friday and it's Monday and my stool is still black?

Medically reviewed by Drugs.com. Last updated on Oct 22, 2020.

Official Answer

by Drugs.com

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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