Azelastine hydrochloride eye drops do not contain hormonal ingredients, and the main active ingredient is azelastine hydrochloride. It is a newly structured anti-allergy drug with a relatively long duration of action and strong anti-allergy effects. Azelastine hydrochloride eye drops can mainly inhibit the synthesis and release of chemicals related to allergic reactions, such as leukotrienes, histamine, and serotonin, and can be used clinically mainly for allergic reactions in the eyes, and is suitable for the treatment and prevention of seasonal allergic conjunctivitis. In conclusion, Azelastine Hydrochloride Eye Drops is a hormone-free eye drop.