Drug interactions
Torsemide + Venlafaxine
Severity: Moderate
Torsemide and Venlafaxine: 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
Both drugs can lower serum sodium, so combined therapy may increase the risk of hyponatremia, particularly in older patients. Venlafaxine may also raise blood pressure, which can work against the diuretic's antihypertensive effect.
What this interaction means in plain words
Torsemide and Venlafaxine 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 belongs to Cardiovascular; Venlafaxine belongs to Central Nervous System.
Why it happens
Diuretic-induced sodium loss combined with SNRI-associated SIADH-like water retention.
What to do
Monitor serum sodium and blood pressure after starting or adjusting either drug. Switch or reduce therapy if significant hyponatremia occurs.
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 Venlafaxine
- Isocarboxazid + Venlafaxine Contraindicated
- Methylene blue + Venlafaxine Contraindicated
- Phenelzine + Venlafaxine Contraindicated
- Procarbazine + Venlafaxine Contraindicated
- Rasagiline + Venlafaxine Contraindicated
- Safinamide + Venlafaxine Contraindicated
Frequently asked questions
Can I take Torsemide with Venlafaxine?
MediHelp rates the interaction as moderate. Torsemide and Venlafaxine 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. Both drugs can lower serum sodium, so combined therapy may increase the risk of hyponatremia, particularly in older patients. Venlafaxine may also raise blood pressure, which can work against the diuretic's antihypertensive effect.
How serious is the interaction between Torsemide and Venlafaxine?
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 sodium and blood pressure after starting or adjusting either drug. Switch or reduce therapy if significant hyponatremia occurs.
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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