Can I take Colecalciferol and Ezetimibe together?
Drug interaction guide
Originally published 25 Jan 2026
Meets Patient’s editorial guidelines
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There is no known significant interaction between colecalciferol (Vitamin D3) and ezetimibe. Taking these two medications together is generally considered safe.
Why this happens
Ezetimibe works by reducing the absorption of cholesterol in the small intestine. While it affects how the body handles certain fats, studies have shown it does not significantly interfere with the absorption or effectiveness of fat-soluble vitamins like colecalciferol. Similarly, colecalciferol does not change how ezetimibe is processed or cleared by the body.
What you should do
You can continue to take both medications as prescribed by your doctor. No special precautions or timing adjustments are necessary for this specific combination.
Important precautions
Hypercalcaemia (high blood calcium)
Do not take colecalciferol if you have high levels of calcium in your blood or urine, or if you have severe kidney stones, as vitamin D increases calcium absorption and can worsen these conditions.
Liver disease
You must not take ezetimibe if you have moderate or severe liver disease, as it can worsen your condition. If you develop unexplained yellowing of the skin or eyes, contact your doctor immediately.
Muscle pain or weakness - ezetimibe
If you experience unexplained muscle pain, tenderness, or weakness, especially if you are also taking a statin, contact your doctor immediately. This can be a sign of a rare but serious muscle breakdown.
Food and drink warnings
Alcohol
It is best to avoid or strictly limit alcohol while taking colecalciferol. Long-term heavy alcohol use can interfere with how your body absorbs and processes Vitamin D, making the treatment less effective.
It is best to avoid or strictly limit alcohol while taking ezetimibe. Both alcohol and ezetimibe can affect your liver; combining them may increase the risk of liver damage or inflammation. If you have a history of liver disease, you should be particularly cautious.
High-fat meals
Colecalciferol is a fat-soluble vitamin. It is best absorbed by your body when taken with a meal that contains some fat (such as eggs, avocado, nuts, or dairy).
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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