Can I take Betahistine and Nefopam together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
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Taking betahistine and nefopam together may cause them to work against each other, making both treatments less effective. Betahistine is used to reduce dizziness by mimicking histamine, while nefopam has 'anticholinergic' properties that can block these effects. Additionally, both drugs can cause side effects like nausea or indigestion, which might be worse when taken together.
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Why this happens
Betahistine works as a histamine analogue (specifically an H1 agonist). Nefopam has significant anticholinergic activity. These two mechanisms are pharmacologically opposite; the anticholinergic effect of nefopam may antagonise (block) the histamine-related benefits of betahistine.
What you should do
Back to contentsYou should use caution when taking these two medicines together. If you find that your dizziness is getting worse or your pain is not being controlled, speak to your doctor or pharmacist. They may suggest an alternative painkiller that does not interfere with your dizziness medication.
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Using other medicines
Back to contentsTaking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Disclaimer
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
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Article history
The information on this page is written and peer reviewed by qualified clinicians.
14 Mar 2026 | Originally published
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