Betahistine hydrochloride is not recommended to be taken for a long period of time, and should be discontinued in time when the symptoms improve. Betahistine has the effect of dilating cerebral blood vessels, clinically mainly used in the treatment of ischemic cerebrovascular diseases, such as can be used for the treatment of acute cerebral infarction, cerebral arterial insufficiency, etc., can also be used in the treatment of tinnitus patients, for the inner ear vertigo also has therapeutic effect. Betahistine belongs to the western prescription drugs, the adverse effects of the drug are stomach upset, palpitations, dizziness, sweating, skin itching, etc. Allergic to the drug components, patients with pheochromocytoma, patients with active ulcers are prohibited. Betahistine long-term oral stimulation of the gastrointestinal tract is relatively large, may induce peptic ulcers, or lead to the aggravation of the original ulcer disease, it is not recommended to long-term oral, the condition can be gradually discontinued after the improvement of the drug, the specific medication program to comply with the doctor’s instructions, not blindly use the drug on their own.