Can I take Atorvastatin and Cod liver oil together?
Drug interaction guide
Originally published 25 Jan 2026
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There is no known harmful interaction between atorvastatin and cod liver oil. In fact, they are often used together to help manage heart health and cholesterol levels. However, both substances can have a very mild thinning effect on the blood.
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Why this happens
Atorvastatin works by reducing the amount of cholesterol made by the liver. Cod liver oil contains omega-3 fatty acids, which help lower triglycerides (another type of blood fat). While both can slightly influence how blood cells stick together, this effect is generally not strong enough to cause clinical problems for most people.
What you should do
It is generally safe to take these together. If you are also taking prescribed blood-thinning medication (like warfarin or aspirin), or if you have a planned surgery, you should inform your doctor or pharmacist before starting cod liver oil. Always stick to the recommended dose on the supplement packaging.
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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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