Prescription:

Betahistine is most commonly used to treat the symptoms of Meniere's disease and vertigo. It may also be used to treat the symptoms of tinnitus.

Betahistine works by improving the blood flow to the ear and decreasing the pressure inside the ear. It also decreases the severity of nausea and dizziness with vertigo attacks and decreases the ringing in the ears that people feel with tinnitus.

This medication is used to treat dizziness (vertigo) in those who have Meniere's disease.
Take as directed, usually three times a day. Dosage is adjusted to each person's response.
SIDE EFFECTS: Stomach upset and headache may occur. If these persist or worsen, notify your doctor. If you notice other effects not listed above, contact your doctor or pharmacist.
PRECAUTIONS: Before taking this drug, tell your doctor your medical history, especially of: allergies, ulcers (active or past), asthma, pheochromocytoma. This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. It is unknown if this drug is excreted into human milk. Consult your doctor before breast-feeding. This drug is not recommended for use in children.