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Drug interactions

Bendroflumethiazide + Irbesartan

Severity: Minor

Bendroflumethiazide and Irbesartan: minor 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

Thiazides and angiotensin receptor blockers are commonly combined for additive blood pressure control. The ARB offsets thiazide-induced potassium loss, but hypotension and renal function changes can occur at initiation, particularly with volume depletion.

What this interaction means in plain words

Bendroflumethiazide and Irbesartan have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: High

Why it happens

Additive antihypertensive effects, with opposing effects on potassium.

What to do

Monitor blood pressure, electrolytes and creatinine after starting or changing doses.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Irbesartan?

MediHelp rates the interaction as minor. Bendroflumethiazide and Irbesartan have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Thiazides and angiotensin receptor blockers are commonly combined for additive blood pressure control. The ARB offsets thiazide-induced potassium loss, but hypotension and renal function changes can occur at initiation, particularly with volume depletion.

How serious is the interaction between Bendroflumethiazide and Irbesartan?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure, electrolytes and creatinine after starting or changing doses.

What other medicines interact with Irbesartan?

MediHelp also lists interactions of Irbesartan with, for example, Aliskiren, Sparsentan, Amifostine. The full list is on the Irbesartan page.

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