Drug interactions
Fluoxetine + Torsemide
Severity: Moderate
Fluoxetine 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
Loop diuretics and SSRIs can each cause hyponatremia, and combining them may increase the risk, especially in older adults. Symptoms range from nausea and confusion to seizures in severe cases.
What this interaction means in plain words
Fluoxetine 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.
Fluoxetine belongs to Central Nervous System; Torsemide belongs to Cardiovascular.
Why it happens
Diuretic-related sodium loss and volume depletion combine with SSRI-associated SIADH-type water retention.
What to do
Check serum sodium at baseline and within the first few weeks of combined therapy, particularly in elderly patients. Reassess therapy if sodium falls or symptoms of hyponatremia appear.
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 Fluoxetine
- Fluoxetine + Isocarboxazid Contraindicated
- Fluoxetine + Mavacamten Contraindicated
- Fluoxetine + Methylene blue Contraindicated
- Fluoxetine + Phenelzine Contraindicated
- Fluoxetine + Pimozide Contraindicated
- Fluoxetine + Rasagiline Contraindicated
Frequently asked questions
Can I take Fluoxetine with Torsemide?
MediHelp rates the interaction as moderate. Fluoxetine 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. Loop diuretics and SSRIs can each cause hyponatremia, and combining them may increase the risk, especially in older adults. Symptoms range from nausea and confusion to seizures in severe cases.
How serious is the interaction between Fluoxetine 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: Check serum sodium at baseline and within the first few weeks of combined therapy, particularly in elderly patients. Reassess therapy if sodium falls or symptoms of hyponatremia appear.
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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