Vestibular dysfunction is a lesion caused by local or total ischemia, hypoxia, inflammation, and tumor in the vestibular system (including structures such as the balloon, elliptic capsule, semicircular canals, and vestibular nerve). Commonly used therapeutic drugs include anticholinergic inhibitors, antihistamines, and vasodilators. 1. Anticholinergic inhibitors, such as scopolamine, are mainly used for vertigo and severe gastrointestinal autonomic response. It is able to improve the circulation of the inner ear to dilate blood vessels. It is forbidden to be used in organic pyloric stenosis and paralytic intestinal obstruction, severe heart disease, glaucoma and so on. 2. Antihistamines, such as promethazine hydrochloride, have sedative and antiemetic effects, and are prohibited in neonates, preterm infants, asthma, coma and so on. 3. Vasodilators, such as betahistine, for vertigo, tinnitus, deafness. Contraindicated for pheochromocytoma, children, etc. Vestibular dysfunction, need to go through a systematic examination to clarify the cause of the disease, the use of drugs must be in accordance with the requirements of the doctor, do not self-medication.