Catacrom®, is a preservative-free eye drop for the prevention and treatment of allergy symptoms.

Rayner Pharmaceuticals has developed a simple pollen calendar to help see when different types of pollen are at their peak.

Catacrom® contains Sodium Cromoglicate, in a single-unit dose format with no added preservatives.   Sodium Cromoglicate is a mast cell stabilizer which in eye drop form is the tried and tested ‘first line’ treatment for allergic eye disease. Catacrom® offers this established therapy with the additional advantage that symptoms will not be exacerbated by preservatives which are often used in multi-dose formats.

Catacrom® is widely used to treat the symptoms of hayfever eyes, however it also helps the many people who suffer with all year round (perennial) allergic conjunctivitis brought on by house dust mites, pet fur and even allergic reactions from contact with substances such as cosmetics.

Catacrom® is equally effective as a prophylaxis, but treatment should be started before the patient is exposed to the allergen. It has minimal side effects and is suitable to be used by children, as well as users of gas permeable and rigid contact lenses.

A preservative-free, single unit dose Sodium Cromoglicate eye drops for the relief of allergy symptoms

Rayner Pharmaceuticals is developing a portfolio of ophthalmic licenced medicines, as well as specials, which are widely trusted by ophthalmologists in the UK, and has pioneered innovative presentations, such as the single-dose, preservative-free formats used for Catacrom®.

Healthcare professionals can order Catacrom® from both pharmaceutical and optical wholesalers.

Catacrom® is fully reimbursable on the NHS Drug Tariff.


About allergic conjunctivitis

  • Symptoms of allergic conjunctivitis are itching, burning, watering, redness of the eye and puffiness of the eye lids.
  • Both eyes are usually affected at the same time with seasonal and perennial allergic conjunctivitis.
  • Contact allergic conjunctivitis may be accompanied by a rash on the eyelids.
  • The most important treatment for allergic conjunctivitis is to keep away from whatever is causing the allergy.
  • Keeping doors and windows closed normally helps.  A cold compress may also help to relieve sore eyes.
  • Anti-allergy eye drops, such as sodium cromoglicate can help to treat mild to moderate symptoms.



Product information

Product name:

Catacrom® 2% BP Eye Drops (without preservative) unit dose.

Pack Size:

Carton containing 30 unit dose ampoules (each ampoule 0.3ml)

Legal Category:


Basic NHS Price:

£ 8.99

MA Holder:

Moorfields Pharmaceuticals

Pip Code:



Catacrom® is classified as a pharmacy medicine (P) in the UK. This information is intended for healthcare professionals.  


To view the Catacrom® Summary of Product Characteristics (SPC) on the eMC website, click here (please note this is an external website).

To view the Catacrom® Patient Information Leaflet (PIL) as a PDF file from the eMC website, click here (please note this is an external website).