Meftal 500

Tablet · Blue Cross
PRESCRIPTION MEDICINE

Meftal 500 is a tablet made by Blue Cross that contains Mefenamic acid 500 mg. Mefenamic acid is a anti-inflammatory painkiller (nsaid): mainly used for period pain and heavy periods, and for mild to moderate pain.

Ingredient (salt)Amount
Mefenamic acid500 mg

What it is used for

Mainly used for period pain and heavy periods, and for mild to moderate pain.

How it works

An NSAID that lowers prostaglandins in the womb lining, which is why it is used for period pain and heavy periods.

How to take it

Usually 250 to 500 mg three times a day with or after food, for no more than 7 days. For periods, start on the first day of bleeding or when pain begins.

Common side effects

  • Stomach pain
  • Nausea
  • Diarrhoea
  • Heartburn
  • Drowsiness
  • Dizziness

Get medical help straight away if

  • Diarrhoea that does not stop (stop taking it)
  • Black stools
  • Skin rash
  • Wheezing
  • Swelling of the face

Be careful

Take after food. Can upset the stomach; stop if diarrhoea or rash develops.

Other medicines and interactions

Avoid with other NSAIDs. Raises bleeding risk with warfarin and other blood thinners; can affect kidney function with diuretics and blood pressure medicines.

Pregnancy and breastfeeding

Not advised in pregnancy, especially the last three months. Usually avoided while breastfeeding; ask a doctor about alternatives.

Common questions

What is Meftal 500?

Meftal 500 is a tablet by Blue Cross containing Mefenamic acid 500 mg.

What is Meftal 500 used for?

Mainly used for period pain and heavy periods, and for mild to moderate pain.

How should I take Meftal 500?

Usually 250 to 500 mg three times a day with or after food, for no more than 7 days. For periods, start on the first day of bleeding or when pain begins. Always follow the dose your doctor or the pack gives.

What are the side effects of Meftal 500?

Common side effects include: Stomach pain, nausea, diarrhoea, heartburn, drowsiness, dizziness. Get medical help straight away for: Diarrhoea that does not stop (stop taking it), black stools, skin rash, wheezing, swelling of the face.

Does Meftal 500 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 Meftal 500 in pregnancy or while breastfeeding?

Not advised in pregnancy, especially the last three months. Usually avoided while breastfeeding; ask a doctor about alternatives.

What are the substitutes for Meftal 500?

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.