Can I take % intravenous infusion - carelide and Metronidazole together?
Drug interaction guide
Originally published 12 May 2026
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Combining metronidazole with an intravenous infusion containing alcohol (ethanol) can cause a 'disulfiram-like reaction'. This makes you feel very unwell, with symptoms like severe nausea, vomiting, a pounding headache, fast heartbeat, and flushing of the face.
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Why this happens
Metronidazole stops the body from breaking down alcohol properly. This leads to a build-up of a toxic chemical called acetaldehyde in your blood, which causes the unpleasant physical symptoms.
What you should do
Back to contentsYou must not have this infusion while taking metronidazole. You should also wait at least 48 to 72 hours after your last dose of metronidazole before receiving any treatment containing alcohol. If you are currently prescribed metronidazole, tell your doctor or nurse immediately before they start the infusion.
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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.
12 May 2026 | Originally published
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