Betahistine

Please note: these are basic guidelines, refer to your doctor for a professional medical opinion.

Popular brand names:

Hidrist, Serc, Trevigo

Popular combinations:

None

Drug group:

Anti-vertigo, anti-emetic drug

Prescription needed?

Yes

What does it do?

Betahistine is used to treat the symptoms associated with inner ear disorders:

• Ménière’s disease (a condition caused by the pressure of excess fluid in the inner ear): betahistine reduces the frequency and severity of the nausea/vertigo attacks, and treats the tinnitus (ringing in the ears) and hearing loss that can occur
• Vestibulitis: betahistine can also be used to treat the acute nausea/vertigo associated with viral infections of the inner ear

How does it work?

The exact way in which betahistine works is unclear, but it is thought to improve blood flow (which reduces pressure) in the small vessels around the inner ear.

How should it be used?

Betahistine should be taken with or after food

What is the typical dosage?

Your doctor will recommend a dosage tailored to your need, but typically:

Adults: 24–48mg daily

How quickly will it start to work?

Usually within 1 hour, but full effect could take longer 

How long will the effects last?

6–12 hours

When should I stop using it?

Discuss with your doctor, symptoms may recur once stopped

Is it safe for prolonged use?

No special problems with long term use                                               

What are the possible side effects?

The following have been reported:

• Less common: nausea, indigestion, headache, itching, drowsiness (rare)
• Report to your doctor before taking your next dose if you experience: rash

What other considerations are important?

Dosage may be adjusted by your doctor under certain conditions.

• Certain health problems: asthma, peptic ulcers, lactose intolerance, phaeochromocytoma
• Other medicines: Antihistamines
• Pregnancy and breast-feeding: Safety not established, discuss with your doctor
• Children: Not recommended
• Over 60: No special problems
• Driving and hazardous work: Caution, the drug can cause drowsiness
• Alcohol: No special problems