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Drug interactions

Candesartan-hydrochlorothiazide + Naproxen

Severity: Moderate

Candesartan-hydrochlorothiazide and Naproxen: moderate 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

Naproxen can blunt the antihypertensive effect of candesartan and hydrochlorothiazide. The triple combination increases the risk of acute kidney injury and hyperkalemia, particularly in older or dehydrated patients.

What this interaction means in plain words

Candesartan-hydrochlorothiazide and Naproxen can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Candesartan-hydrochlorothiazide belongs to Cardiovascular; Naproxen belongs to Musculoskeletal.

Evidence level: High

Why it happens

NSAID inhibition of prostaglandin synthesis reduces renal perfusion and increases sodium retention when the RAS is blocked and a diuretic is used.

What to do

Use the lowest effective naproxen dose for the shortest time with adequate hydration. Monitor blood pressure, creatinine, and potassium, or use paracetamol.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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-hydrochlorothiazide with Naproxen?

MediHelp rates the interaction as moderate. Candesartan-hydrochlorothiazide and Naproxen can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Naproxen can blunt the antihypertensive effect of candesartan and hydrochlorothiazide. The triple combination increases the risk of acute kidney injury and hyperkalemia, particularly in older or dehydrated patients.

How serious is the interaction between Candesartan-hydrochlorothiazide and Naproxen?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective naproxen dose for the shortest time with adequate hydration. Monitor blood pressure, creatinine, and potassium, or use paracetamol.

What other medicines interact with Candesartan-hydrochlorothiazide?

MediHelp also lists interactions of Candesartan-hydrochlorothiazide with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Candesartan-hydrochlorothiazide page.

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