OTC
Antihistamine (anti-allergy eye drop)
Olopatadine
Last reviewed April 2026
Who is this for?
What is this drug?
Olopatadine is an antihistamine eye drop that works by blocking the release of histamine in your eyes, which is the chemical your body produces during an allergic reaction that causes itching, redness, and watering.
What is it used for?
Allergic eye conditions (itchyredwatery eyes)seasonal eye allergies from dust or polleneye irritation from harmattan dust
Available Over The Counter
Available at pharmacies without a prescription. Rules may vary by country.