Used primarily in the treatment of allergic conditions, this compound is effective in managing symptoms of allergic conjunctivitis and allergic rhinitis. It functions by inhibiting histamine release and blocking histamine H1 receptors, reducing itching, redness, and swelling. Available in ophthalmic solution form, it provides relief from eye irritation caused by allergens such as pollen and dust. It is also formulated in nasal spray for relieving nasal symptoms including sneezing, runny nose, and congestion. Due to its dual action as an antihistamine and mast cell stabilizer, it offers prolonged symptom control with once or twice-daily dosing. Its favorable safety profile makes it suitable for both seasonal and perennial allergy management in adults and children.