Opticrom Allergy Single Dose 2% w/v Eye Drops Solution Opticrom Allergy Single Dose 2% w/v Eye Drops Solution provides effective relief from irritated eyes caused by airborne allergies in just two minutes. The active ingredient, sodium cromoglicate, works by blocking the release of histamine, your body's natural allergic response chemical that causes the reaction. Opticrom Allergy Single Dose 2% w/v Eye Drops Solution can be used to treat & prevent hayfever as well as eye allergies from mould, dustmites & animal dander
- conditions referred to as 'perennial allergic conjunctivitis'. Signs of an allergic reaction include itchy, watery, red or inflamed eyes & puffy eyelids.