Flunarizine can be taken for days, weeks, months, or even longer, depending mainly on which disease is treated.1. If it is used for the treatment of cerebral atherosclerosis and migraine prophylaxis, the medication is generally used for a longer period of time.2. If the patient is > 75 years old, the medication may cause extrapyramidal symptoms in individuals, which can manifest as increased muscle tone and mask face, and it should be recommended to stop the medication, and age > 75 years The medication should be used with caution and should not be applied as much as possible. 3. If peripheral vertigo diseases are considered, such as Meniere’s syndrome, otoliths and vestibular neuronitis, the medication is mainly used to improve the patient’s symptoms, and most patients can stop the medication if they are cured within two weeks of the onset.