Skip to content

Drug interactions

Furosemide + Hydrochlorothiazide-olmesartan

Severity: Moderate

Furosemide and Hydrochlorothiazide-olmesartan: 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

Furosemide and hydrochlorothiazide act on sequential nephron sites and together can produce marked diuresis, with volume depletion, hypotension, hypokalemia, hyponatremia and renal impairment. Olmesartan adds to hypotension and renal hemodynamic effects.

What this interaction means in plain words

Furosemide and Hydrochlorothiazide-olmesartan 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.

Furosemide belongs to Cardiovascular; Hydrochlorothiazide-olmesartan belongs to Cardiovascular.

Evidence level: High

Why it happens

Sequential nephron blockade with additive natriuresis and potassium wasting, plus ARB-related reduction in glomerular filtration pressure.

What to do

Monitor electrolytes, creatinine, weight and blood pressure, and adjust diuretic doses to avoid volume depletion. Replace potassium and magnesium as needed.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Furosemide and Hydrochlorothiazide-olmesartan, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Furosemide with Hydrochlorothiazide-olmesartan?

MediHelp rates the interaction as moderate. Furosemide and Hydrochlorothiazide-olmesartan 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. Furosemide and hydrochlorothiazide act on sequential nephron sites and together can produce marked diuresis, with volume depletion, hypotension, hypokalemia, hyponatremia and renal impairment. Olmesartan adds to hypotension and renal hemodynamic effects.

How serious is the interaction between Furosemide and Hydrochlorothiazide-olmesartan?

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 electrolytes, creatinine, weight and blood pressure, and adjust diuretic doses to avoid volume depletion. Replace potassium and magnesium as needed.

What other medicines interact with Hydrochlorothiazide-olmesartan?

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

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in