Lopadine Eye Drop 5 ml is an ophthalmic solution containing the active ingredient olopatadine, which is an antihistamine used to relieve symptoms of allergic conjunctivitis, such as itching, redness, and watering of the eyes. It works by blocking the action of histamine and stabilizing mast cells, thereby reducing the allergic response in the eyes. Typically administered as one or two drops in the affected eye(s) twice daily, Lopadine Eye Drop provides targeted relief for individuals suffering from eye allergies, offering a convenient and effective option for managing symptoms.