Cetirizine hydrochloride tablets are receptor antagonists that react easily with alcohol, which may aggravate the disease and pose a certain threat to life in serious cases. Cetirizine hydrochloride tablets are more effective for the treatment of seasonal or perennial allergic rhinitis, itchy skin, urticaria, but also a series of adverse reactions, such as nausea, vomiting, dry mouth, etc. During the taking of the drug, we should closely observe the adverse reactions, and when serious adverse reactions occur, it is best to go to the hospital in a timely manner.