Can I take Iu and Arovi together?
Drug interaction guide
Originally published 12 May 2026
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Taking these two medications together can significantly increase the levels of vitamin A in your body. This can lead to a condition called vitamin A toxicity (hypervitaminosis A). Symptoms can include severe headaches, dizziness, blurred vision, nausea, and in long-term cases, bone pain or skin changes.
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Why this happens
Both 'IU' (which refers to International Units of Vitamin A in this context) and 'Arovi' (a brand of Vitamin A/Retinol) contain the same active ingredient. Taking them together results in a 'doubling up' or additive effect, leading to excessively high levels in the bloodstream.
What you should do
Back to contentsDo not take these two products together unless specifically instructed by your doctor. Check the labels of any multivitamins you are taking to ensure you are not exceeding the recommended daily allowance of Vitamin A. If you experience persistent headaches or blurred vision, stop taking the supplements and consult your GP.
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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.
12 May 2026 | Originally published
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