The mechanism of action of betahistine is multifactorial. Ménière's disease is thought to result from a disruption of endolymphatic fluid homeostasis in the ear. Betahistine mainly acts as a histamine H1-receptor agonist. The Betahistine 8 mg Tablet increases blood flow to the inner ear, which lowers the pressure of extra fluid there. In persons with Ménière’s illness, this pressure is assumed to be the culprit behind the symptoms of nausea, vertigo (dizziness), tinnitus (ear ringing), and hearing loss. This medication lessens the severity of the symptoms and lowers their frequency.