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Parkinson's, dizziness and migraine

Betahistine

Also sold as: Serc, Vertin

Prescription neededParkinson's, dizziness and migraine
Comes as:Tablet

Usual adult dose

Usual adult dose: 8 mg to 16 mg three times a day with food (no more than 48 mg a day).

Your doctor may give you a different dose. Children's doses depend on weight.

Side effects

Common

  • mild stomach upset
  • headache
  • bloating

Serious — get help

Stop taking it and see a doctor straight away if you notice:

  • severe allergic reaction (swelling of face or throat)
  • severe skin rash

Do not take it, or take care, if

  • Phaeochromocytoma (a rare adrenal tumour)
  • Asthma (use with caution)
  • Active stomach ulcer (use with caution)
  • Pregnancy and breastfeeding (ask your doctor)

Interactions

Medicines that can react with this one.

Minor1 medicineUsually not a problem, but tell your doctor.
  • Chlorphenamine

    Antihistamines may reduce the effect of betahistine.

Pregnancy

  1. A
  2. B
  3. C
  4. D
  5. X

Not established

Not established. Ask your doctor before using it in pregnancy or while trying to get pregnant.

Generic alternatives

Similar medicines your doctor or pharmacist may offer instead.

  • Cinnarizine
  • Flunarizine
Check with my other medicines

Always follow your doctor or pharmacistThis page is general information, not a prescription. Do not start, stop or change a medicine on your own.