Drug interactions
Bumetanide + Ethacrynic acid
Severity: Major
Bumetanide and Ethacrynic acid: 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
Both are loop diuretics acting at the same site, so combining them offers no real therapeutic advantage and increases the risk of excessive diuresis, electrolyte depletion and volume loss. Ototoxicity risk is also additive.
What this interaction means in plain words
Bumetanide and Ethacrynic acid 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.
Bumetanide belongs to Cardiovascular; Ethacrynic acid belongs to Cardiovascular.
Why it happens
Duplicate inhibition of the Na-K-2Cl cotransporter producing additive diuresis, electrolyte loss and ototoxicity.
What to do
Avoid concurrent use of two loop diuretics; use one agent and titrate the dose. If a switch is made, such as for sulfonamide allergy, stop the first agent.
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 Bumetanide
Other interactions of Ethacrynic acid
Frequently asked questions
Can I take Bumetanide with Ethacrynic acid?
MediHelp rates the interaction as major. Bumetanide and Ethacrynic acid 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. Both are loop diuretics acting at the same site, so combining them offers no real therapeutic advantage and increases the risk of excessive diuresis, electrolyte depletion and volume loss. Ototoxicity risk is also additive.
How serious is the interaction between Bumetanide and Ethacrynic acid?
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 of two loop diuretics; use one agent and titrate the dose. If a switch is made, such as for sulfonamide allergy, stop the first agent.
What other medicines interact with Bumetanide?
MediHelp also lists interactions of Bumetanide with, for example, Amifostine, Amikacin, Captopril-hydrochlorothiazide. The full list is on the Bumetanide page.
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