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A member asked:
Stool black after 1 day off my antibiotics. looked like pale stool day before. whats the cause? was on clarithromycin and metronidazole for h.pylori
3 doctors weighed in across 3 answers
DARK STOOL: Dark black stool can be a sign of ge - bleeding. Sometimes antibiotic usage can change the color of stool..Bismuth and iron supplements can also change the color of your stool to dark black.
Answered 4/7/2013
5.2k views
H. Pylori Treatment: Sometimes there is a peptobismal product in the h. Pylori treatments and this can make the stool look black.
Answered 4/7/2013
5.2k views
Multiple causes: Were you taking bismuth or pepto? That can turn stool black. Do you have a gastric ulcer as a result of h pylori? Blood that gets digested turns black. If stool is like motor oil and very foul smelling, go to er. This could mean severe blood. If stool well formed, probably not problem.
Answered 4/8/2013
5.2k views
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