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Can I take Allopurinol bp and Candesartan cilexetil together?

Drug interaction guide

Taking allopurinol and candesartan together may increase the risk of a rare but serious allergic reaction. It can also lead to a higher risk of your blood pressure dropping too low or your kidney function being affected.

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Why this happens

Both drugs can affect how the kidneys work. When used together, they may increase the sensitivity of the immune system, making a severe skin rash or allergic reaction more likely. Additionally, they can have an additive effect on lowering blood pressure and kidney filtration.

What you should do

You can usually take these together, but you must be monitored by your doctor. Seek immediate medical help if you develop a skin rash, hives, or swelling of the face. Your doctor may want to perform regular blood tests to check your kidney function and monitor your blood pressure closely.

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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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