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Can I take Cod liver oil and Red vine leaf extract together?

Drug interaction guide

Both cod liver oil and red vine leaf extract can thin the blood. Taking them together might slightly increase your risk of bruising or bleeding more easily than usual.

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Why this happens

Cod liver oil contains omega-3 fatty acids which have a mild anti-platelet effect (making blood cells less sticky). Red vine leaf extract contains flavonoids that can also affect blood flow and clotting. When combined, these effects can add up.

This combination is generally considered safe for most healthy people, but you should use caution. Watch out for signs of easy bruising, nosebleeds, or bleeding gums when brushing your teeth. If you are scheduled for surgery or are already taking prescribed blood-thinning medications (like warfarin or aspirin), speak to your doctor or pharmacist before taking these supplements together.

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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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