Purpose:To probe into the curative effect and safty of treatment with iv drip of injection of Astragali seu Hedysari and Radix Acanthopanacis Senticosi for vertebrobasilar ischemic vertigo(VBIV).

• 目的:探讨黄芪、刺五加注射液静脉滴注治疗椎-基底动脉缺血性眩晕简称(VBIV)的疗效性和安全性。