Clinically, betahistine hydrochloride injection can be used in two ways: intramuscular injection and intravenous drip. The indications of Betahistine Hydrochloride Injection include vertigo and tinnitus caused by inner ear vertigo, cerebral arteriosclerosis, ischemic cerebrovascular disease and hypertension. There are two main ways to use betahistine hydrochloride injection, one is to give 10mg intramuscularly once or twice a day. One is to take 10-30mg of Betahistine Hydrochloride Injection once or twice a day and add it to 5% dextrose injection or 0.9% sodium chloride injection, and then give it to the patient by intravenous drip. Gastrointestinal reactions such as loss of appetite, stomach upset, dry mouth, palpitations, itchy skin and other adverse reactions may occur during the administration of the drug, and individual patients may experience dizziness and sweating. Patients who are allergic to this drug and children should not apply the drug. This product needs to be used in the hospital by medical personnel, and should not be used without authorization.