Drug interactions
Ethacrynic acid + Torsemide
Severity: Major
Ethacrynic acid and Torsemide: major 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
Two loop diuretics given together have additive effects on fluid and electrolyte loss, with a high risk of hypokalemia, hypomagnesemia, hypovolemia and ototoxicity. There is rarely a reason to combine them.
What this interaction means in plain words
Ethacrynic acid and Torsemide can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Ethacrynic acid belongs to Cardiovascular; Torsemide belongs to Cardiovascular.
Why it happens
Both inhibit the Na-K-2Cl cotransporter in the thick ascending limb, producing additive diuresis and ototoxic potential.
What to do
Avoid concurrent use; use a single loop diuretic at an adjusted dose, or add a thiazide if more diuresis is needed. If combined, monitor electrolytes, renal function and hearing.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Torsemide
Other interactions of Ethacrynic acid
Frequently asked questions
Can I take Ethacrynic acid with Torsemide?
MediHelp rates the interaction as major. Ethacrynic acid and Torsemide can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Two loop diuretics given together have additive effects on fluid and electrolyte loss, with a high risk of hypokalemia, hypomagnesemia, hypovolemia and ototoxicity. There is rarely a reason to combine them.
How serious is the interaction between Ethacrynic acid and Torsemide?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concurrent use; use a single loop diuretic at an adjusted dose, or add a thiazide if more diuresis is needed. If combined, monitor electrolytes, renal function and hearing.
What other medicines interact with Torsemide?
MediHelp also lists interactions of Torsemide with, for example, Amikacin, Amiodarone, Carbenoxolone. The full list is on the Torsemide page.
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