Sodium Cromoglicate Capsules

What are sodium cromoglicate capsules?

Sodium cromoglicate, sometimes known by the brand name Nalcrom, is a medicine used to help manage the symptoms of food allergies in conjunction with dietary restrictions. It belongs to a class of medicines known as mast cell stabilisers, which help prevent the release of histamine and other allergy-related chemicals from mast cells[1]. 

What are sodium cromoglicate capsules used for?

Sodium cromoglicate is used to manage[1]: 

• Confirmed food allergies 

• Symptoms triggered by food such as: 

• Abdominal pain 

• Diarrhoea 

• Skin rashes 

• Breathing difficulties 

• General allergic reactions 

How do sodium cromoglicate capsules work?

Sodium cromoglicate helps manage allergic reactions by[1]: 

• Stabilising mast cells in the gut lining and so 

• Preventing the release of histamine and inflammatory substances 

• Reducing allergic inflammation in the digestive tract 

Who can take sodium cromoglicate capsules?

Sodium cromoglicate is suitable for[1]: 

• Adults and children over 2 years 

• People with diagnosed food allergies 

It is not suitable for[1]: 

• Anyone allergic to sodium cromoglicate or capsule ingredients 

• People with a history of anaphylaxis or severe food allergy (as it is not a substitute for emergency treatment) 

• Are pregnant, trying to get pregnant, or breastfeeding 

Please tell your doctor or pharmacist about any conditions you may have or medication you take before you start treatment, and always follow the instructions in the Patient Information Leaflet[2].

What is the typical dosage of sodium cromoglicate capsules?

The usual dose is[1]: 

• Adults and children over 14 years of age: 2 capsules (200mg) four times a day, 15 minutes before meals and at bedtime 

• Children: 1 capsule (100mg) four times a day. 

Your doctor or pharmacist may adjust the dose depending on your response. It may take 2 to 3 weeks to notice improvement[1]. 

How do you take sodium cromoglicate capsules?

To get the most from this treatment[1]: 

• Swallow the capsules whole with water 

• Take them 15 minutes before meals and at bedtime 

• Use consistently as prescribed 

• Do not stop suddenly without consulting your doctor 

Can you stop taking sodium cromoglicate capsules?

No. Stopping abruptly may cause your allergy symptoms to return. Always speak to your pharmacist or doctor before making changes[1].  

What do you do if you take too much sodium cromoglicate capsules?

An overdose is not expected to cause harm. Contact your doctor or NHS 111 if you are concerned[1].   

What do you do if you forget to take sodium cromoglicate capsules?

Take it as soon as you remember. Skip the missed dose if it’s nearly time for your next one. Do not take two doses at once[1]. 

How do you store sodium cromoglicate capsules?

To store safely[1]: 

• Store below 25°C in a dry place 

• Keep out of sight and reach of children 

• Do not use after the expiry date 

• No special storage conditions are needed [3] 

What medicines can’t you take with sodium cromoglicate capsules?

Sodium cromoglicate is usually safe with paracetamol, ibuprofen, and most other prescription and non-prescription medicines[1]. 

Always tell your doctor or pharmacist about[1]: 

• Any new or ongoing medications 

• Herbal products or over-the-counter remedies  

Always inform your doctor or pharmacist about all medications and supplements you take before you start a new medicine, and follow the instructions in the Patient Information Leaflet[2]. 

What are the side effects of sodium cromoglicate capsules?

Most people do not experience side effects while taking sodium cromoglicate capsules, but you should contact your GP if you experience any unusual symptoms. In rare cases, the medicine may cause a serious allergic reaction (anaphylaxis). You should call 999 or visit A&E immediately if you believe this is happening[1]. 

Symptoms of anaphylaxis include[1]:  

• Difficulty breathing  

• Tightness in throat and chest  

• Swelling of the tongue or throat  

• Feeling faint or dizzy  

• Blue/grey skin or lips  

• Loss of consciousness 

If you experience any side effects, including those not listed, you are encouraged to report them via the Yellow Card Scheme or contact your doctor, pharmacist, or nurse. This information is intended as a summary for general awareness and does not replace professional medical advice. 

The information provided in the side effects section is not a comprehensive list of all possible side effects associated with this medication. For a complete list of side effects, please refer to the Patient Information Leaflet (PIL) provided with your medication or consult your healthcare professional[2]. 

Frequently asked questions about sodium cromoglicate capsules

How long do sodium cromoglicate capsules take to work? 
Usually 2-3 weeks[1]. 

Can I take sodium cromoglicate capsules long-term? 
Yes, with medical supervision[1]. 

Can I take with antihistamines? 
Yes, if recommended by your doctor[1]. 

Can I take sodium cromoglicate capsules during pregnancy? 
Only if advised by your doctor[1]. 

Can I drink alcohol with sodium cromoglicate capsules? 
Yes, in moderation[1]. 

Can I take with food? 
No – take 15 minutes before meals to allow time for the medication to get to where it needs to. If taken with food, this can reduce the amount of medication absorbed by your body[1]. 

Can children take sodium cromoglicate capsules? 
Yes, from age 2 and above[1]. 

Can I open the capsules? 
No – swallow whole unless otherwise advised[1]. 

What if it doesn’t help? 
Your doctor may change the dose or explore other options[1]. 

Is it a cure for food allergies? 
No – it helps manage symptoms alongside dietary restrictions, not cure the allergy[1]. 

For the official NHS guide to sodium cromoglicate capsules, visit their website.