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Drug interactions

Candesartan + Oxaprozin

Severity: Major

Candesartan and Oxaprozin: major interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Oxaprozin can blunt the antihypertensive effect of candesartan and, together with an angiotensin receptor blocker, may impair renal function and raise potassium. The risk is greatest in elderly, volume-depleted or renally impaired patients.

What this interaction means in plain words

Candesartan and Oxaprozin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Candesartan belongs to Cardiovascular; Oxaprozin belongs to Musculoskeletal.

Evidence level: High

Why it happens

NSAIDs block vasodilatory prostaglandins that maintain glomerular perfusion while ARBs dilate the efferent arteriole, reducing glomerular filtration; both also promote hyperkalemia.

What to do

Ensure adequate hydration and monitor serum creatinine, potassium and blood pressure within the first weeks of combined use. Avoid or limit NSAID use in at-risk patients and consider alternative analgesics.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Candesartan with Oxaprozin?

MediHelp rates the interaction as major. Candesartan and Oxaprozin can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Oxaprozin can blunt the antihypertensive effect of candesartan and, together with an angiotensin receptor blocker, may impair renal function and raise potassium. The risk is greatest in elderly, volume-depleted or renally impaired patients.

How serious is the interaction between Candesartan and Oxaprozin?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Ensure adequate hydration and monitor serum creatinine, potassium and blood pressure within the first weeks of combined use. Avoid or limit NSAID use in at-risk patients and consider alternative analgesics.

What other medicines interact with Oxaprozin?

MediHelp also lists interactions of Oxaprozin with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Oxaprozin page.

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