Neo-Mercazole 5

Tablet · Abbott
PRESCRIPTION MEDICINE

Neo-Mercazole 5 is a tablet made by Abbott that contains Carbimazole 5 mg. Carbimazole is a anti-thyroid medicine: reduces thyroid hormone in an overactive thyroid.

Ingredient (salt)Amount
Carbimazole5 mg

What it is used for

Reduces thyroid hormone in an overactive thyroid.

How it works

An anti-thyroid medicine that reduces thyroid hormone production in an overactive thyroid (Graves' disease).

How to take it

Usually a higher starting dose, reduced over weeks; courses often last 12 to 18 months with regular blood tests.

Common side effects

  • Rash
  • Itching
  • Nausea
  • Headache
  • Joint pain

Get medical help straight away if

  • Sore throat, mouth ulcers or fever (possible dangerous drop in white cells
  • Get a blood test straight away)
  • Yellow skin

Be careful

Report sore throat or fever at once (rare effect on white blood cells).

Other medicines and interactions

Can change warfarin effect.

Pregnancy and breastfeeding

Avoided in the first three months of pregnancy (propylthiouracil is used instead); low doses acceptable while breastfeeding.

Common questions

What is Neo-Mercazole 5?

Neo-Mercazole 5 is a tablet by Abbott containing Carbimazole 5 mg.

What is Neo-Mercazole 5 used for?

Reduces thyroid hormone in an overactive thyroid.

How should I take Neo-Mercazole 5?

Usually a higher starting dose, reduced over weeks; courses often last 12 to 18 months with regular blood tests. Always follow the dose your doctor or the pack gives.

What are the side effects of Neo-Mercazole 5?

Common side effects include: Rash, itching, nausea, headache, joint pain. Get medical help straight away for: Sore throat, mouth ulcers or fever (possible dangerous drop in white cells, get a blood test straight away), yellow skin.

Does Neo-Mercazole 5 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 Neo-Mercazole 5 in pregnancy or while breastfeeding?

Avoided in the first three months of pregnancy (propylthiouracil is used instead); low doses acceptable while breastfeeding.

What are the substitutes for Neo-Mercazole 5?

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.