Can I take Co-codamol and Zentiva clopidogrel together?
Drug interaction guide
Originally published 25 Jan 2026
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Taking co-codamol (which contains codeine) alongside clopidogrel may make the clopidogrel less effective at preventing blood clots. This could potentially increase your risk of having a heart attack or stroke.
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Why this happens
Clopidogrel needs to be broken down by the body to start working. Codeine (in co-codamol) can slow down the movement of your gut and interfere with how clopidogrel is absorbed and processed, meaning there is less of the active medicine in your bloodstream to thin your blood.
What you should do
You should speak to your doctor or pharmacist before taking these together. They may suggest an alternative painkiller that does not interfere with your heart medication, such as paracetamol on its own. If you must take both, your doctor may need to monitor you more closely.
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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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