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About sodium cromoglicate capsules - Brand name: Nalcrom

Sodium cromoglicate capsules are part of a group of medicines called anti-allergics. They are used to treat allergic reactions to food.

These capsules work by stopping the release of the natural substances in your body (including histamine) that cause allergic reactions. They also reduce how severe your symptoms are.

You'll only be prescribed sodium cromoglicate capsules if you've had a test to prove that you're allergic to certain foods.

Sodium cromoglicate is only available on prescription. It comes as capsules.

Sodium cromoglicate also comes as eye drops to treat hay fever and other allergies. You can buy these from pharmacies and shops.

Key facts

  • For sodium cromoglicate capsules to work properly, you need to use them regularly for several weeks.
  • Your allergy symptoms from certain foods should get better within 2 to 3 weeks of taking sodium cromoglicate capsules.
  • Most people will not get any side effects from sodium cromoglicate capsules.
  • It's safe to take sodium cromoglicate with most prescription medicines, and everyday painkillers like paracetamol and ibuprofen.
  • Even if you feel better, do not stop taking your capsules unless your doctor says it's OK. Your allergy symptoms could come back or get worse.

Page last reviewed: 11 July 2022
Next review due: 11 July 2025