Betahistine mesylate, there is no clinical data to indicate whether it can be taken for a long time, if there is no adverse reaction, you can follow the doctor’s instructions. Betahistine mesylate, vasodilating effect is weak, but more persistent, can increase cerebral flow and peripheral blood flow, and play a role in improving microcirculation, can relax the inner ear capillary sphincter, so that the blood flow of the inner ear increased. Clinically used for cerebral arteriosclerosis, cerebral ischemic disease of insufficient blood supply; inner ear vertigo elimination, tinnitus, vertigo, nausea and vomiting symptoms. May occur nausea, headache, lack of appetite, palpitations, peptic ulcer aggravation and other adverse reactions. Children are contraindicated in women during pregnancy, patients with bronchial asthma, peptic ulcers and other patients should be used with caution, and breastfeeding should be discontinued when used during breastfeeding. Vertigo and other symptoms need to actively seek medical attention, all drugs need to be used under the guidance of a professional doctor.