Flunarizine hydrochloride can be taken two tablets at a time, but the exact number of tablets need to be decided under the guidance of the doctor according to the condition. Flunarizine hydrochloride is a vasodilator, one tablet is 5mg, which can be used for the treatment of migraine, vertigo, idiopathic tinnitus treatment, intermittent claudication treatment, cerebral atherosclerosis, cerebral infarction recovery period, etc. 1. Preventive treatment of migraine: 2 tablets per night, 1 tablet per night for patients over 65 years old. 2. Treatment of vertigo: 2 tablets per day. 3. Treatment of idiopathic tinnitus: 2 tablets per night, 10 days as a course of treatment. 4. Intermittent claudication treatment: 2~4 tablets per day. 5. Treatment of cerebral arteriosclerosis and cerebral infarction during recovery: 1~2 tablets daily. Flunarizine hydrochloride should only be used under the guidance of a doctor and should not be taken privately. It is especially forbidden for patients with a history of depression, Parkinson’s disease or acute cerebral hemorrhagic disease. During the period of medication, if patients experience adverse reactions, such as drowsiness, fatigue, insomnia, anxiety and other adverse reactions of the central nervous system, burning sensation in the stomach, hyperpepsia and other adverse reactions of the gastrointestinal tract, or other uncomfortable symptoms, they should go to the hospital for a follow-up consultation in a timely manner.