Pataday, Ophthalmic 0.2% Eye Allergy Itch Relief Solution Once Daily Original, 5 MLProduct Description Relief of itchy allergies in the eyes: works as an antihistamine to relieve itchy eyes in minutes. Provides quick symptom relief: Blocks allergic reactions by limiting the release of chemicals that cause inflammation. Product Benefits Ingredients Supplement Facts Active ingredient Purpose olopatadine(0. 2%) Antihistamine Suggestions Easy to use: one drop, use once a day. Special Note Warnings For external use only. Disclaimer