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Famotidine: uses, side effects & brands
Famotidine is an H2 blocker that reduces stomach acid, gentler than PPIs for mild acidity. It belongs to the Acidity, antacid & gut medicine group. These treat acidity, indigestion, ulcers, spasm and bowel problems.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Acidity, antacid & gut medicine |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Mild acidity and heartburn
- Stomach and duodenal ulcers
- Acid reflux (GERD)
- Preventing heartburn before a trigger meal
Common brand names
- India: Famocid, Topcid
- Worldwide: Pepcid
Common side effects
- Headache
- Dizziness
- Constipation or diarrhoea
Before taking it — precautions
- Tell your doctor about kidney problems — the dose may need adjusting
- Older adults may get confusion, especially with weak kidneys
- Pregnancy or breastfeeding — check with your doctor
When to see a doctor urgently
- Black stools or vomiting blood (urgent)
- Difficulty swallowing or weight loss
- Confusion or irregular heartbeat
Not a prescription — no dose shown. The right dose of famotidine 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
How is famotidine different from PPIs like pantoprazole?
Famotidine (an H2 blocker) reduces acid less strongly but acts faster, so it suits milder acidity.
Can I take it with antacids?
Yes, they can be used together for quick relief.
Is it the same as ranitidine?
Both are H2 blockers; famotidine is widely used now that ranitidine has been withdrawn in many places.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
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.