Bismuth subsalicylate (Pepto-Bismol)
Antidiarrheal. Treats diarrhea and indigestion. Very limited CNS effects at normal doses. No direct brain effect — does not cross the blood–brain barrier.
Benefits
Relieves indigestion, nausea, heartburn, and traveler’s diarrhea and has mild antibacterial action.
Risks
Can harmlessly darken the tongue and stool. Contains salicylate—avoid in children/teens with viral illness (Reye’s syndrome risk) and with aspirin allergy or anticoagulants.
Informational only — not medical advice.
Body systems
Organs
Where to buy
Popular Bismuth subsalicylate (Pepto-Bismol) products on Amazon. Not medical advice — talk to a clinician before starting a supplement.
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Research (3)
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