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Drug interactions

Bendroflumethiazide + Fenoprofen

Severity: Moderate

Bendroflumethiazide and Fenoprofen: 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

NSAIDs can blunt the antihypertensive and diuretic effects of thiazides through sodium and water retention. The combination also raises the risk of acute kidney injury, especially in dehydrated or elderly patients. Potassium effects are variable and not the main concern.

What this interaction means in plain words

Bendroflumethiazide and Fenoprofen 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.

Evidence level: Moderate

Why it happens

NSAID inhibition of renal prostaglandins reduces renal blood flow and sodium excretion, antagonizing thiazide action.

What to do

Monitor blood pressure, fluid status, renal function and electrolytes, particularly at the start of therapy. Use the lowest effective NSAID dose for the shortest time.

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 Bendroflumethiazide with Fenoprofen?

MediHelp rates the interaction as moderate. Bendroflumethiazide and Fenoprofen 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. NSAIDs can blunt the antihypertensive and diuretic effects of thiazides through sodium and water retention. The combination also raises the risk of acute kidney injury, especially in dehydrated or elderly patients. Potassium effects are variable and not the main concern.

How serious is the interaction between Bendroflumethiazide and Fenoprofen?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure, fluid status, renal function and electrolytes, particularly at the start of therapy. Use the lowest effective NSAID dose for the shortest time.

What other medicines interact with Fenoprofen?

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

Full monographs, dosing and an interaction checker in the MediHelp app

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