Can I take 15 and Vitamin d together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
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There is no known interaction between paracetamol (often referred to by the brand name '15' in certain regions or misidentified from '500mg' markings) and Vitamin D. They are safe to take together.
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Why this happens
Paracetamol is processed by the liver to relieve pain and fever, while Vitamin D is a fat-soluble vitamin used by the body to absorb calcium and support bone health. These two substances use different pathways in the body and do not interfere with each other's effectiveness or safety.
What you should do
Back to contentsYou can take paracetamol and Vitamin D supplements at the same time. Always follow the dosage instructions on the packaging for both products. It is best to avoid or strictly limit alcohol when taking paracetamol, as combining them increases the risk of liver damage.
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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.
14 Mar 2026 | Originally published

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