Skip to main content

Can I take 1.5mg and Vitamin d together?

Drug interaction guide

There is no known interaction between vitamin D and 1.5mg of most common medications. However, without the name of the specific medicine you are taking, it is impossible to provide a complete safety check.

Video picks for Drug interactions

Continue reading below

Why this happens

Vitamin D is a fat-soluble vitamin that helps the body absorb calcium. Most medicines do not interfere with how vitamin D works, and vitamin D does not typically change how other medicines are processed by the liver or kidneys.

Please provide the name of the medicine you are taking alongside vitamin D. While vitamin D is generally safe to take with most treatments, certain medications (such as some weight-loss drugs or specific steroids) can affect how vitamins are absorbed. Always check with a pharmacist before starting a new supplement.

Continue reading below

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.

Continue reading below

Article history

The information on this page is written and peer reviewed by qualified clinicians.

  • 14 Mar 2026 | Originally published
flu eligibility checker

Ask, share, connect.

Browse discussions, ask questions, and share experiences across hundreds of health topics.

symptom checker

Feeling unwell?

Assess your symptoms online for free

Sign up to the Patient newsletter

Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.

Please enter a valid email address

By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.