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Detailed medicine guidance

How and when to take betahistine

NHS medicines information on dosage for betahistine, how to take it and what to do if you miss a dose or take too much.

About this information

This NHS content is written for people in England. Medicine names, availability, prescribing and services may differ in other countries.

Dosage and strength

Betahistine comes as 8mg or 16mg tablets.

The usual starting dose is 16mg, taken 3 times a day.

Leave 6 to 8 hours between doses.

When your symptoms are under control, your doctor may reduce your dose to 8mg, taken 3 times a day.

How to take it

Swallow the tablet whole with a drink of water.

It's a good idea to take your betahistine tablets after a meal. It will be less likely to upset your stomach.

How long to take it for

You may need to take betahistine for a long time, such as several months or years, to prevent the symptoms of Ménière's disease.

If you forget to take it

If you forget to take a dose of betahistine skip the missed dose and take your next dose at the usual time.

Do not take 2 doses at the same time. Never take an extra dose to make up for a forgotten one.

If you often forget doses, it may help to set an alarm to remind you. You could also ask a pharmacist for advice on other ways to help you remember to take your medicine.

If you take too much

Taking too much betahistine can make you feel sick or sleepy, or give you stomach ache.

Contact 111 for advice now if:

  • you take more than your prescribed dose of betahistine

Go to 111.nhs.uk or call 111

Information

If you need to go to A&E, do not drive. Ask someone to drive you or call 999 and ask for an ambulance.

Bring the betahistine packet or leaflet inside it, any remaining medicine, and any other medicines you take.

View the original NHS website page ↗. Refreshed 19 August 2026.

Licensed under the Open Government Licence v3.0 ↗. MyPHU is independent and is not endorsed by the NHS.

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