Bismuth Subsalicylate: uses, side effects & brands
Written & medically reviewed by Dr. Sanjay Anbu, MBBS· Last reviewed
Bismuth subsalicylate soothes indigestion, nausea and mild diarrhoea. It belongs to the Prokinetic & digestive (extra) group. These help the stomach empty, calm the gut, or restore gut balance.
Restoring gut flora after antibiotics (probiotics)
Acidity relief (bismuth)
Common brand names
India: Pepto-Bismol, Bismuth
Worldwide: Pepto-Bismol, Kaopectate
Common side effects
Mild tummy upset
Drowsiness (levosulpiride)
Black stools/tongue (bismuth — harmless)
Before taking it — precautions
Prokinetics are used short-term
Probiotics are generally safe for most people
Do not ignore ongoing symptoms without a diagnosis
When to see a doctor urgently
Uncontrolled movements or stiffness (levosulpiride, rare)
Severe or persistent tummy pain
Blood in vomit or stools
Not a prescription — no dose shown. The right dose of bismuth subsalicylate depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Do probiotics help after antibiotics?
They may reduce antibiotic-associated diarrhoea and help restore gut bacteria for some people, and are generally safe.
What is itopride used for?
It helps the stomach empty and relieves bloating, fullness and nausea in indigestion.
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.