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Drug interactions

Hydrochlorothiazide-irbesartan + Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol

Severity: Moderate

Hydrochlorothiazide-irbesartan and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol: moderate interaction.

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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

Bowel preparations cause fluid and electrolyte loss, and thiazide diuretics add to potassium, sodium and volume depletion. Together with irbesartan this raises the risk of dehydration, hypotension and acute kidney injury.

What this interaction means in plain words

Hydrochlorothiazide-irbesartan and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol 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

Additive fluid and electrolyte depletion from diuresis and bowel preparation-induced diarrhea.

What to do

Consider holding the diuretic and irbesartan on the day of bowel preparation, and ensure adequate hydration. Check electrolytes and renal function in high-risk patients.

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 Hydrochlorothiazide-irbesartan with Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol?

MediHelp rates the interaction as moderate. Hydrochlorothiazide-irbesartan and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol 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. Bowel preparations cause fluid and electrolyte loss, and thiazide diuretics add to potassium, sodium and volume depletion. Together with irbesartan this raises the risk of dehydration, hypotension and acute kidney injury.

How serious is the interaction between Hydrochlorothiazide-irbesartan and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Consider holding the diuretic and irbesartan on the day of bowel preparation, and ensure adequate hydration. Check electrolytes and renal function in high-risk patients.

What other medicines interact with Hydrochlorothiazide-irbesartan?

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

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