Meniace-S, Betahistine is a medication commonly used to treat vertigo associated with Ménière's disease, a disorder of the inner ear that can lead to dizzy spells (vertigo) and hearing loss. Betahistine is thought to improve blood flow in the inner ear, which helps alleviate the symptoms of vertigo, tinnitus (ringing in the ears), and hearing loss associated with this condition. Mechanism of Act..