Niftran 100

Capsule
PRESCRIPTION MEDICINE

Niftran 100 is a capsule that contains Nitrofurantoin 100 mg. Nitrofurantoin is a antibiotic (urinary): treats and prevents bladder infections.

Ingredient (salt)Amount
Nitrofurantoin100 mg

What it is used for

Treats and prevents bladder infections.

How it works

An antibiotic that concentrates in urine and is used for bladder infections (cystitis).

How to take it

Usually 50 to 100 mg four times a day or 100 mg slow-release twice a day, with food, for 3 to 7 days. Urine may turn dark yellow or brown.

Common side effects

  • Nausea
  • Loss of appetite
  • Headache

Get medical help straight away if

  • Cough, chest pain or breathlessness
  • Numbness or tingling
  • Yellow skin

Be careful

Take with food; turns urine dark yellow-brown.

Other medicines and interactions

Magnesium antacids reduce absorption. Not effective if kidney function is poor.

Pregnancy and breastfeeding

Avoid at the end of pregnancy (near term). Usually acceptable while breastfeeding unless the baby is very young or has G6PD deficiency.

Common questions

What is Niftran 100?

Niftran 100 is a capsule containing Nitrofurantoin 100 mg.

What is Niftran 100 used for?

Treats and prevents bladder infections.

How should I take Niftran 100?

Usually 50 to 100 mg four times a day or 100 mg slow-release twice a day, with food, for 3 to 7 days. Urine may turn dark yellow or brown. Always follow the dose your doctor or the pack gives.

What are the side effects of Niftran 100?

Common side effects include: Nausea, loss of appetite, headache. Get medical help straight away for: Cough, chest pain or breathlessness, numbness or tingling, yellow skin.

Does Niftran 100 need a prescription?

Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.

Can I take Niftran 100 in pregnancy or while breastfeeding?

Avoid at the end of pregnancy (near term). Usually acceptable while breastfeeding unless the baby is very young or has G6PD deficiency.

What are the substitutes for Niftran 100?

We have no other brand with exactly the same composition and strength in our list yet. Ask your pharmacist for an equivalent.

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.

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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.