Sodium cromoglicate capsules


  • Take sodium cromoglicate capsules 30-60 minutes before meals.
  • Side-effects are uncommon, but may include feeling sick, joint pain, and skin rash.
Type of medicine Anti-allergic medicine
Used for Food allergy
Also called Nalcrom®
Available as Capsules

Sodium cromoglicate capsules are used to prevent the symptoms of food allergy. A food allergy is an abnormal reaction of your body's immune system to a particular food. Even a tiny amount of the food can cause an allergic reaction to take place, and this can range from a mild reaction to one that is severe and life-threatening. Foods that most commonly cause allergy are milk, eggs, nuts (especially peanuts), seeds, shellfish and other seafood, wheat, soya, and some fruits such as citrus and kiwi.

The only real treatment for food allergy is to avoid that food. Because it can be very difficult to avoid certain foods completely, sodium cromoglicate is an anti-allergic medicine which is prescribed to help prevent allergic reactions from occurring. It works by preventing the release of certain substances in your body which cause the allergic reaction.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking sodium cromoglicate it is important that your doctor or pharmacist knows:

  • If you are pregnant, trying for a baby or breast-feeding.
  • If you are taking or using any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.
  • If you have ever had an allergic reaction to a medicine.
  • Before you start this treatment, read the manufacturer's printed information leaflet from inside your pack. The leaflet will give you more information about sodium cromoglicate capsules, and a full list of side-effects which you may experience from taking them.
  • Take the capsules exactly as your doctor has told you. As a guide, the usual dose for an adult is 200 mg (two capsules) four times daily, and the usual dose for a child (aged 2-14 years) is 100 mg (one capsule) four times daily. Your dose however may be higher or lower than this. Your doctor or pharmacist will tell you what dose is right for you, and this dose will also be on the label of your pack.
  • The capsules can be swallowed whole with a drink of water. Alternatively, if you prefer (or if  they have been prescribed for a young child), you can open up the capsules and mix the contents into a small amount of hot water. If you do this, make sure you add a little cold water before drinking it.
  • Try to take each of your doses about 30-60 minutes before a meal.
  • If you forget to take a dose, take it as soon as you remember. If it is almost time to take your next dose, skip the missed dose and take your next dose when it is due. Do not take two doses together to make up for a forgotten dose.
  • It is very important that you follow the advice you have been given about which foods you must avoid.
  • Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress.
  • If you have also been prescribed an injection of adrenaline, it is important that you carry this with you at all times.
  • If you buy any medicines, check with a pharmacist that they are safe to take with your other medicines.

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. These usually improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following side-effects continue or become troublesome.

Possible sodium cromoglicate side-effects What can I do if I experience this?
Feeling sick Stick to simple or bland meals (avoid rich and spicy foods)
Skin rash, pain in your joints If either of these become troublesome, speak with your doctor

If you experience any other symptoms which you think may be due to this medicine, speak with your doctor or pharmacist.

  • Keep all medicines out of the reach and sight of children.
  • Store in a cool, dry place, away from direct heat and light.

  • If you are having an operation or any dental treatment, tell the person carrying out the treatment which medicines you are taking.
  • Never take more than the prescribed dose. If you suspect that you or someone else might have taken an overdose of this medicine, go to the accident and emergency department of your local hospital. Take the container with you, even if it is empty.
  • This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.
  • Never keep out-of-date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.
  • If you have any questions about this medicine ask your pharmacist.

Further reading & references

  • British National Formulary; 63rd Edition (Mar 2012) British Medical Association and Royal Pharmaceutical Society of Great Britain, London
  • Manufacturer's PIL, Nalcrom®; sanofi-aventis, The electronic Medicines Compendium. Dated February 2011.
Original Author: Helen Allen Current Version: Peer Reviewer: Dr Adrian Bonsall
Last Checked: 05/09/2012 Document ID: 3821  Version: 23 © EMIS

Disclaimer: This article is for information only and should not be used for the diagnosis or treatment of medical conditions. EMIS has used all reasonable care in compiling the information but make no warranty as to its accuracy. Consult a doctor or other health care professional for diagnosis and treatment of medical conditions. For details see our conditions.

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