In this drug factsheet:
How does this medication work? What will it do for me?
Betahistine is belongs to a group of medications used to treat vertigo associated with Ménière's disease. Vertigo is a condition that causes sufferers to have a sensation of rotation or movement of themselves or their surroundings. Ménière's disease is a disorder of the inner ear that causes vertigo in addition to symptoms such as ringing in the ears, headache, and loss of hearing.
Betahistine is used to reduce the number of episodes of vertigo associated with Ménière's disease. It is believed to work by decreasing the pressure in the ear. It is this pressure which is believed to contribute to the sense of dizziness, nausea, and ringing in the ears and hearing loss that people with Ménière's disease experience.
This medication may be available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of this medication may not be used for all of the conditions discussed here.
Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.
Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.
How should I use this medication?
The usual recommended dose of betahistine for adults is 24 mg to 48 mg given in 2 or 3 divided doses (i.e., 12 mg to 24 mg twice a day, or 8 mg to 16 mg three times a day). To prevent stomach upset, it is recommended that this medication be taken with food.
Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important to take this medication exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store this medication at room temperature, protect it from light and moisture, and keep it out of the reach of children.
Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.
What form(s) does this medication come in?
Each round, biconvex, scored, white to almost white tablet with bevelled edges, engraved with "N" on one side and "267" on the scored side, contains betahistine 16 mg. Nonmedicinal ingredients: mannitol, microcrystalline cellulose, and sodium stearyl fumarate.
Each round, biconvex, scored, white to almost white tablet with bevelled edges, engraved with "N" on one side and "24" on the scored side, contains betahistine 24 mg. Nonmedicinal ingredients: mannitol, microcrystalline cellulose, and sodium stearyl fumarate.
Who should NOT take this medication?
Do not take betahistine if you:
- are allergic to betahistine or any ingredients of the medication
- have a peptic (stomach) ulcer or a history of peptic ulcer
- have a condition known as pheochromocytoma