Drug interactions
Desflurane + Dofetilide
Severity: Major
Desflurane and Dofetilide: 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
Dofetilide is a potent QT-prolonging antiarrhythmic with a clear risk of torsades de pointes. Desflurane adds further QT prolongation, which raises the arrhythmia risk.
What this interaction means in plain words
Desflurane and Dofetilide 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; Dofetilide belongs to Cardiovascular.
Why it happens
Additive QT prolongation through delayed cardiac repolarization.
What to do
Obtain an ECG and correct potassium, magnesium and calcium before anesthesia. Monitor the ECG continuously, have defibrillation available, and discuss perioperative dofetilide management with cardiology.
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 Dofetilide
- Amiodarone + Dofetilide Contraindicated
- Amisulpride + Dofetilide Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Dofetilide Contraindicated
- Amlodipine-olmesartan-hydrochlorothiazide + Dofetilide Contraindicated
- Candesartan-hydrochlorothiazide + Dofetilide Contraindicated
- Captopril-hydrochlorothiazide + Dofetilide Contraindicated
Frequently asked questions
Can I take Desflurane with Dofetilide?
MediHelp rates the interaction as major. Desflurane and Dofetilide 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. Dofetilide is a potent QT-prolonging antiarrhythmic with a clear risk of torsades de pointes. Desflurane adds further QT prolongation, which raises the arrhythmia risk.
How serious is the interaction between Desflurane and Dofetilide?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain an ECG and correct potassium, magnesium and calcium before anesthesia. Monitor the ECG continuously, have defibrillation available, and discuss perioperative dofetilide management with cardiology.
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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