Betahistine Hydrochloride Sodium Chloride Injection is a diamine oxidase inhibitor, which has obvious dilating effect on cardiovascular and vertebral arterial system, improves blood circulation and reduces systemic blood pressure; it can also increase cochlear and vestibular blood flow. This eliminates symptoms such as inner ear vertigo and tinnitus. According to the mechanism of action of its drug clinically commonly used in the treatment of the following diseases. 1. For the treatment of dizziness, dizziness, nausea, vomiting and so on caused by Meniere’s syndrome. The drug increases blood flow to the cochlea and vestibule, thus eliminating the symptoms of inner ear vertigo, tinnitus and deafness. 2. Treating ischemic cerebrovascular diseases, such as cerebral infarction, dizziness caused by insufficient cerebral blood supply, it can improve cerebral blood circulation and promote the recovery of cerebral ischemic symptoms. 3. Treating postural dizziness, tinnitus and ringing in the ears caused by arteriosclerosis and hypertension. Note that individual patients may experience dry mouth, loss of appetite, stomach discomfort, palpitations (rapid heartbeat, often accompanied by panic), itching of the skin, etc. after using the drug, which requires close observation of the drug reaction, and adjustment of the drug therapy at any time under the guidance of the doctor.