Drug interactions
Desflurane + Toremifene
Severity: Major
Desflurane and Toremifene: 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
Toremifene prolongs the QT interval in a dose-dependent way and desflurane can add to this effect. Together they may raise the likelihood of torsades de pointes during anesthesia.
What this interaction means in plain words
Desflurane and Toremifene 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.
Desflurane belongs to Central Nervous System; Toremifene belongs to Endocrine.
Why it happens
Additive prolongation of cardiac repolarization via QTc effects.
What to do
Review the baseline ECG and correct hypokalemia and hypomagnesemia before surgery. Monitor the ECG continuously and consider an anesthetic with less QT effect, and avoid other QT-prolonging drugs perioperatively.
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 Desflurane
Other interactions of Toremifene
- Amiodarone + Toremifene Contraindicated
- Dronedarone + Toremifene Contraindicated
- Nilotinib + Toremifene Contraindicated
- Pimozide + Toremifene Contraindicated
- Quinidine + Toremifene Contraindicated
- Ribociclib + Toremifene Contraindicated
Frequently asked questions
Can I take Desflurane with Toremifene?
MediHelp rates the interaction as major. Desflurane and Toremifene 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. Toremifene prolongs the QT interval in a dose-dependent way and desflurane can add to this effect. Together they may raise the likelihood of torsades de pointes during anesthesia.
How serious is the interaction between Desflurane and Toremifene?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Review the baseline ECG and correct hypokalemia and hypomagnesemia before surgery. Monitor the ECG continuously and consider an anesthetic with less QT effect, and avoid other QT-prolonging drugs perioperatively.
What other medicines interact with Desflurane?
MediHelp also lists interactions of Desflurane with, for example, Amisulpride, Anagrelide, Arsenic trioxide. The full list is on the Desflurane page.
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