Optrex Hayfever Relief Eye Drops provide soothing relief for itchy eyes affected by hayfever. Each 1ml of eye drops contains 20 mg of Sodium Cromoglicate (2.0% w/v). Other ingredients include Benzalkonium Chloride and Disodium Edetate. This product is suitable for adults and children over 6 years old. To use, gently squeeze 1 or 2 drops into each eye, up to 4 times daily. Read the enclosed leaflet before use. Consult your doctor or pharmacist if symptoms persist or if there is no improvement after 2 days of use. Do not use continuously for more than 14 days. This product should only be used in the eyes. Keep out of the sight and reach of children. Consult your doctor or pharmacist before use if pregnant, breastfeeding, or if you require further information. Do not use if sensitive to any of the ingredients. Do not use whilst wearing soft contact lenses.