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Can I take Diazepam and Morphine together?

Drug interaction guide

Taking diazepam and morphine together can cause extreme sleepiness, very slow or shallow breathing, and difficulty staying awake. In severe cases, this combination can lead to a coma or be life-threatening.

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Why this happens

Both drugs are 'central nervous system depressants'. This means they both slow down brain activity and the signals that tell your body to breathe. When taken together, their effects add up, making the sedation and breathing problems much stronger than if either drug were taken alone.

What you should do

You should only take these two medicines together if they have been specifically prescribed by the same doctor who is aware you are taking both. If you must take both, use the lowest dose possible for the shortest time. Seek emergency medical help immediately if you experience extreme dizziness, fainting, very slow breathing, or if you cannot stay awake. Avoid alcohol and do not drive or operate machinery while taking this combination.

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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.

Clause de non-responsabilité

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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Historique de l'article

Les informations contenues dans cette page sont rédigées et évaluées par des cliniciens qualifiés.

  • 24 janvier 2026 | Publié à l'origine
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