Sodium Cromoglicate Eye drops
Sodium Cromoglicate Eye drops
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Sodium Cromoglicate Eye Drops for Allergic Conjunctivitis
What Are These Eye Allergy Drops?
These sodium cromoglicate eye drops contain an active ingredient that helps prevent and treat allergic reactions in your eyes. You can use them to manage symptoms of allergic conjunctivitis, which commonly occurs during hayfever season or when you're exposed to allergens like pollen, dust mites, or pet dander.
The medication works by stabilising mast cells in your eye tissues, preventing them from releasing histamine and other inflammatory substances that cause allergic symptoms. This makes it particularly effective for managing seasonal and perennial allergic conjunctivitis. Many people find relief when using these drops as part of their comprehensive eye care routine during allergy season.
How Do Cromoglicate Eye Drops Work?
The active ingredient in these drops prevents allergic reactions by blocking the release of inflammatory chemicals from specialised immune cells in your eyes. When you're exposed to allergens, these cells normally release substances that cause the typical symptoms of eye allergies.
By using these drops regularly, you create a protective barrier that reduces your eye's sensitivity to common allergens. This preventative action makes them particularly useful when you know you'll be exposed to triggers like pollen during peak seasons.
Who Can Use These Allergic Conjunctivitis Treatments?
These eye drops are suitable for adults and children over 4 years of age who experience allergic conjunctivitis symptoms. You might benefit from using them if you regularly experience:
- Red, itchy eyes during pollen season
- Watery discharge from your eyes when exposed to allergens
- Swollen or puffy eyelids during allergic reactions
- Burning or stinging sensations in your eyes from environmental triggers
However, you should not use these drops if you're allergic to any of the ingredients. If you wear contact lenses, you'll need to remove them before application and wait at least 15 minutes before reinserting them.
When to Start Using Hayfever Eye Drops
For optimal results, you should ideally start using these drops before your allergy season begins. This preventative approach allows the medication to build up protective levels in your eye tissues before you're exposed to high pollen counts or other allergens.
Many people find it helpful to begin treatment 1-2 weeks before their usual allergy symptoms typically start. You can continue using them throughout the allergy season to maintain protection against symptoms.
Storage and Handling Instructions
Store these eye drops at room temperature, away from direct sunlight and heat sources. Keep the bottle tightly closed when not in use and ensure the dropper tip doesn't touch any surfaces to prevent contamination.
Once opened, you should use the drops within 28 days and then dispose of any remaining solution safely. Always check the expiry date before use and never share your eye drops with other people.
This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.
Recommended Dosage for Adults and Children
The typical dose for adults and children over 4 years is one or two drops in each affected eye, applied four times daily. You should space your doses evenly throughout the day to maintain consistent protection against allergens.
For children under 4 years of age, you must consult your doctor or pharmacist before use. If you're using these drops for the first time, start with the lower dose to see how your eyes respond before increasing if necessary.
How to Apply Your Eye Drops Correctly
Before applying the drops, wash your hands thoroughly and shake the bottle gently. Tilt your head back slightly and pull down your lower eyelid to create a small pocket. Hold the dropper above your eye without letting it touch your eyelid or lashes.
Squeeze the bottle gently to release the prescribed number of drops into the pocket of your lower eyelid. Close your eye gently and press lightly on the inner corner for about one minute to prevent the drops from draining away. Repeat the process for your other eye if needed, and avoid rubbing your eyes after application.
Understanding Potential Side Effects
Like all medicines, Sodium Cromoglicate Eye Drops can have side effects, although not everyone will experience them. Most people tolerate these drops well, but you should be aware of possible reactions that may occur, especially when you first start treatment. If you experience persistent symptoms, you may want to explore other options in our allergy and hay fever collection after consulting with your pharmacist.
The most commonly reported side effects are usually mild and temporary, affecting the area where you apply the drops. These typically include slight stinging or burning when you first put the drops in, which usually settles within a few minutes.
- Temporary stinging or burning sensation upon application
- Mild eye irritation or redness
- Increased tear production
- Blurred vision immediately after application
- Dry eyes or feeling of grittiness
- Eyelid swelling or puffiness
- Sensitivity to light
- Headache
- Taste changes if drops drain into your throat
- Skin rash around the eye area
- Crusting around the eyelashes
- Eye discharge
If you experience these or any other side effects, speak to your doctor or pharmacist right away. For more information about reporting side effects please see the MHRA Yellow Card Scheme.
Written and reviewed by our qualified team
Reviewed by:
Tarun Kumar
Superintendent/ Clinical Lead
📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.
Content last updated: 14 Sep 2026
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