Azelastine Hydrochloride Tablets are used in the treatment of allergic rhinitis, acute as well as chronic urticaria, and play an anti-allergic role. Azelastine hydrochloride tablets belong to the histamine H1 receptor antagonist, should not be taken with alcohol and other central nervous system depressant drugs at the same time, so as not to aggravate the central nervous system depressant effect. During the administration of this product, patients may experience drowsiness, nausea, fatigue, abdominal pain and other adverse reactions, and no serious adverse reactions have been observed in clinical application. Allergic to this product is prohibited, in addition to lactating women, pregnant women, the elderly and children under 12 years of age must be used under medical supervision. Note: Azelastine hydrochloride tablets are prescription drugs, patients need to rely on the prescription order issued by a doctor to buy, should not self-medication, so as not to cause discomfort.