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Can I take 7.5mg and Quviviq together?

Drug interaction guide

Taking Zopiclone and Quviviq (daridorexant) together can cause extreme sleepiness, severe drowsiness, and a significant 'hangover' effect the next day. It can also make you very unsteady on your feet, increasing the risk of falls, and may cause breathing difficulties during sleep.

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Why this happens

Both medicines are 'CNS depressants', meaning they slow down the activity of your brain and nervous system. Because they work in different ways to promote sleep, taking them together creates an additive effect that is much stronger than taking either one alone.

You should not take these two medicines together unless specifically instructed and monitored by your doctor. If you have taken both, do not drive, operate machinery, or perform tasks that require alertness the following day. If you experience extreme difficulty waking up or slowed breathing, seek medical help immediately.

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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.

  • 14 Mar 2026 | Originally published
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