Expert Pharmacy Insights

Olopatadine Eye Drops (Pataday, Patanol): 0.1% vs 0.2% vs 0.7%, How to Use, Side Effects and US Cost

Olopatadine eye drops relieve allergic eye itch and have been sold over the counter in the US since 2020 as Pataday Twice Daily Relief (0.1%, formerly Patanol), Pataday Once Daily Relief (0.2%) and Pataday Extra Strength (0.7%, formerly Pazeo). This guide covers the label directions for each strength, contact lenses, side effect rates from the prescription labels, age limits, pregnancy, the 0.7% trial results, olopatadine vs ketotifen and cromolyn, when an allergy drop is the wrong choice, and what a bottle costs US pharmacies.