Vertigo is a common symptom in clinic, it is a kind of motion or positional illusion, causing distortion of response between a person and the external environment, thus making a person feel like spinning or tilting. Drugs commonly used to treat vertigo include: 1, Difenidol, also known as vertigo stop, the drug can inhibit the central to vestibular pathway, for all types of vertigo can play a relieving effect, belongs to the symptomatic treatment of vertigo drugs. 2, betahistine, also known as Min make Lang, it can improve the microcirculation of the inner ear, to relieve the spasm of the blood vessels, is mostly used in the treatment of peripheral vertigo. 3, flunarizine, this is a kind of calcium ion Flunarizine, a calcium antagonist, can improve vascular spasm and increase cerebrovascular blood supply, commonly used in the treatment of central vertigo.