It is mainly used for Meniere's disease, vascular headache and cerebral arteriosclerosis, and can also be used for treating acute ischemic cerebrovascular diseases, such as cerebral thrombosis, cerebral embolism and transient cerebral blood supply insufficiency. Vertigo and tinnitus caused by hypertension are also effective. Suitable for patients with hypertension and cerebral infarction. Usage and dosage: the maximum daily dosage shall not exceed 48mg. I hope these can help you, and I wish you a speedy recovery and good health!