Therapeutic Group: Respiratory Presentation Each bottle contains 120 metered doses of Olopatadine Hydrochloride INN. Each actuation delivers Olopatadine Hydrochloride INN 665 mcg. (Equivalent to 600 mcg of Olopatadine). Description Olopatadine, an antihistamine, works by blocking the action of histamine in the body, which reduces allergy symptoms. Olopatadine Hydrochloride treats sneezing, itching, runny nose, and other […]