Stomach upset is a common problem, and many people will take an over-the-counter remedy to get some relief.
Some of the different medicines that can be used for stomach problems includePepto-Bismolor Kaopectate.
The next bowel movement or two show a difference and it could beblack stoolor maybe even green stool.

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However, it was actuallyusing Pepto-Bismolor Kaopectate for a digestive problem that has this effect.
Green or black stools could be because of the active ingredient, which is bismuth subsalicylate.
Bismuth subsalicylate is anantidiarrheal drug.
In the digestive system it calms inflammation and reduces the amount of water entering the bowel.
This can slow down the production of loose stools or diarrhea.
It also has antibacterial properties and may inhibit organisms that cause diarrhea and other gastrointestinal symptoms.
A small amount of a substance called sulfur is present both in saliva and in the gastrointestinal tract.
Sulfur interacts with bismuth, theactive ingredientthat’s used in Pepto-Bismol.
The result is a new substance called bismuth sulfide, which is what causes the stool to turn black.
Blood in the stoolis always a cause for concern.
It is never normal, and it needs to be evaluated by a healthcare provider.
That’s why when green stools and diarrhea occur together, it should be discussed with a doctor.
Water can help you recover from diarrhea, which dehydrates you, and it can relieve nausea.
you might also opt for herbal teas that are safe for pregnant women.
Keogan DM, Griffith DM.Current and potential applications of bismuth-based drugs.Molecules.
2019;94(4):697-703. doi:10.1016/j.mayocp.2019.01.022
MedlinePlus.Black or tarry stools.