Drug interactions
Spironolactone + Torsemide
Severity: Moderate
Spironolactone 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
Torsemide lowers potassium whereas spironolactone raises it, and the combination is commonly used in heart failure and cirrhosis for synergistic diuresis with potassium balance. Potassium can still become too high or too low, particularly with renal impairment, and volume depletion may occur.
What this interaction means in plain words
Spironolactone 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.
Spironolactone belongs to Cardiovascular; Torsemide belongs to Cardiovascular.
Why it happens
Sequential nephron blockade with opposing potassium effects: loop diuretic kaliuresis and mineralocorticoid receptor antagonism.
What to do
Monitor serum potassium, creatinine and volume status after initiation and dose changes. Avoid additional potassium supplements unless hypokalemia is confirmed.
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?
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Other interactions of Torsemide
Other interactions of Spironolactone
- Amiloride + Spironolactone Contraindicated
- Eplerenone + Spironolactone Contraindicated
- Spironolactone + Triamterene Contraindicated
- Abiraterone + Spironolactone Major
- Aceclofenac + Spironolactone Major
- Acemetacin + Spironolactone Major
Frequently asked questions
Can I take Spironolactone with Torsemide?
MediHelp rates the interaction as moderate. Spironolactone 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. Torsemide lowers potassium whereas spironolactone raises it, and the combination is commonly used in heart failure and cirrhosis for synergistic diuresis with potassium balance. Potassium can still become too high or too low, particularly with renal impairment, and volume depletion may occur.
How serious is the interaction between Spironolactone 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: Monitor serum potassium, creatinine and volume status after initiation and dose changes. Avoid additional potassium supplements unless hypokalemia is confirmed.
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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