Skip to content

Drug interactions

Cortisone + Furosemide

Severity: Moderate

Cortisone and Furosemide: 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

Cortisone has mineralocorticoid activity that promotes potassium loss, adding to the kaliuresis from furosemide. This raises the risk of hypokalemia, particularly with prolonged use or high doses.

What this interaction means in plain words

Cortisone and Furosemide 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 renal potassium wasting from corticosteroid mineralocorticoid effect and loop diuretic action.

What to do

Monitor serum potassium regularly and give potassium supplementation if 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 Cortisone and Furosemide, 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 Cortisone with Furosemide?

MediHelp rates the interaction as moderate. Cortisone and Furosemide 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. Cortisone has mineralocorticoid activity that promotes potassium loss, adding to the kaliuresis from furosemide. This raises the risk of hypokalemia, particularly with prolonged use or high doses.

How serious is the interaction between Cortisone and Furosemide?

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 serum potassium regularly and give potassium supplementation if needed.

What other medicines interact with Furosemide?

MediHelp also lists interactions of Furosemide with, for example, Amifostine, Amikacin, Carbenoxolone. The full list is on the Furosemide 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