Drug interactions
Furosemide + Torsemide
Severity: Moderate
Furosemide and Torsemide: 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
Two loop diuretics together produce additive diuresis with a higher risk of volume depletion, hypokalemia, hypomagnesemia and renal impairment. The combination is rarely appropriate outside specialist management of diuretic resistance.
What this interaction means in plain words
Furosemide and Torsemide 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; Torsemide belongs to Cardiovascular.
Why it happens
Both drugs inhibit the Na-K-2Cl cotransporter in the thick ascending limb, giving duplicated pharmacologic effect.
What to do
Avoid therapeutic duplication and use one loop diuretic at an adjusted dose. If used together, monitor electrolytes, renal function and volume status closely.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Furosemide and Torsemide, 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.
Other interactions of Furosemide
- Amifostine + Furosemide Major
- Amikacin + Furosemide Major
- Carbenoxolone + Furosemide Major
- Cephaloridine + Furosemide Major
- Cisplatin + Furosemide Major
- Digoxin + Furosemide Major
Other interactions of Torsemide
Frequently asked questions
Can I take Furosemide with Torsemide?
MediHelp rates the interaction as moderate. Furosemide and Torsemide 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. Two loop diuretics together produce additive diuresis with a higher risk of volume depletion, hypokalemia, hypomagnesemia and renal impairment. The combination is rarely appropriate outside specialist management of diuretic resistance.
How serious is the interaction between Furosemide and Torsemide?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid therapeutic duplication and use one loop diuretic at an adjusted dose. If used together, monitor electrolytes, renal function and volume status closely.
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.
