Pataday Once Daily Relief Extra Strength delivers fast, long-lasting allergy eye relief in a convenient single-dose format. Each box contains two 2.5ml vials of olopatadine hydrochloride 0.7%, formulated to combat itching, redness, and watery eyes caused by allergies. Designed for once-daily application, this extra strength formula provides up to 16 hours of symptom relief, making it ideal for those seeking extended comfort throughout the day. Ophthalmologist-recommended and clinically proven, Pataday offers effective allergy management without the need for frequent dosing.