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Can I take Fluanxol and Sedoxil together?

Drug interaction guide

Taking these two medicines together can make you feel very sleepy, dizzy, and unsteady on your feet. It can also slow down your breathing and make it harder to concentrate or perform daily tasks.

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Why this happens

Both medicines work by slowing down the central nervous system (the brain and nerves). Fluanxol is an antipsychotic and Sedoxil (mexazolam) is a benzodiazepine. When used together, their calming effects add up, leading to excessive sedation.

What you should do

You should only take these together if specifically prescribed by your doctor. Avoid driving, using tools, or operating machinery until you know how this combination affects you. Do not drink alcohol while taking these medicines, as it will make the sleepiness much worse. If you feel extremely drowsy or have trouble breathing, seek medical help immediately.

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Using other medicines

Taking 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.

  • 25 Jan 2026 | Originally published
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