Famonit 40

Tablet · Zydus Cadila
USUALLY SOLD WITHOUT PRESCRIPTION

Famonit 40 is a tablet made by Zydus Cadila that contains Famotidine 40 mg. Famotidine is a acid reducer (h2 blocker): reduces stomach acid to treat acidity, reflux and ulcers.

Ingredient (salt)Amount
Famotidine40 mg

What it is used for

Reduces stomach acid to treat acidity, reflux and ulcers.

How it works

An H2 blocker that reduces stomach acid, less strongly than PPIs; used for heartburn, ulcers and with NSAIDs.

How to take it

Usually 20 to 40 mg once or twice a day; can be taken just before meals or at bedtime.

Common side effects

  • Headache
  • Constipation
  • Diarrhoea
  • Dizziness

Get medical help straight away if

  • Confusion (older people or kidney disease)
  • Fast or irregular heartbeat

Be careful

Dose may need lowering with kidney problems.

Other medicines and interactions

Reduces absorption of itraconazole, ketoconazole and some HIV medicines.

Pregnancy and breastfeeding

Considered acceptable in pregnancy and breastfeeding when needed.

Same composition, other brands (8)

Ask your doctor or pharmacist before switching brands.

Same ingredients, different strength or form

Common questions

What is Famonit 40?

Famonit 40 is a tablet by Zydus Cadila containing Famotidine 40 mg.

What is Famonit 40 used for?

Reduces stomach acid to treat acidity, reflux and ulcers.

How should I take Famonit 40?

Usually 20 to 40 mg once or twice a day; can be taken just before meals or at bedtime. Always follow the dose your doctor or the pack gives.

What are the side effects of Famonit 40?

Common side effects include: Headache, constipation, diarrhoea, dizziness. Get medical help straight away for: Confusion (older people or kidney disease), fast or irregular heartbeat.

Does Famonit 40 need a prescription?

It is usually sold without a prescription in India, but ask a pharmacist if you take other medicines or have a long-term illness.

Can I take Famonit 40 in pregnancy or while breastfeeding?

Considered acceptable in pregnancy and breastfeeding when needed.

What are the substitutes for Famonit 40?

Brands with the same composition: Famocid 40, Famotin 40, Famocer 40, Famonext 40, Topcid 40, Famofast 40, Famogreat 40, Famtac 40. Ask your doctor or pharmacist before switching.

Sources and further reading

NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.

Composition checked against pack details from large Indian online pharmacies. Last reviewed 31 October 2026. Written by Satya Babu.

🔎 Search another medicine

For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.