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Drug interactions

Bendroflumethiazide + Oxaprozin

Severity: Moderate

Bendroflumethiazide and Oxaprozin: 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 diuretic and antihypertensive effects of thiazides and may cause sodium retention and renal impairment. The combination also increases the risk of acute kidney injury, particularly in older or volume-depleted patients.

What this interaction means in plain words

Bendroflumethiazide and Oxaprozin 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

Inhibition of renal prostaglandin synthesis by oxaprozin causes sodium and water retention and reduces renal perfusion, opposing thiazide effects.

What to do

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

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 Oxaprozin?

MediHelp rates the interaction as moderate. Bendroflumethiazide and Oxaprozin 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 diuretic and antihypertensive effects of thiazides and may cause sodium retention and renal impairment. The combination also increases the risk of acute kidney injury, particularly in older or volume-depleted patients.

How serious is the interaction between Bendroflumethiazide and Oxaprozin?

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, especially at the start of therapy. Use the lowest effective NSAID dose for the shortest time and ensure adequate hydration.

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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