Drug interactions
Desflurane + Vandetanib
Severity: Major
Desflurane and Vandetanib: 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
Vandetanib has a boxed warning for QT prolongation, torsades de pointes and sudden death, and its long half-life means the effect persists for weeks. Adding desflurane increases the arrhythmic risk during anesthesia.
What this interaction means in plain words
Desflurane and Vandetanib 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; Vandetanib belongs to Oncology.
Why it happens
Additive QTc prolongation, with vandetanib inhibiting cardiac repolarizing currents.
What to do
Review a recent ECG and correct potassium, magnesium and calcium before surgery. Monitor the ECG continuously, have defibrillation available, and consider alternative anesthetic techniques with less QT effect.
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 Vandetanib
- Amiodarone + Vandetanib Contraindicated
- Amisulpride + Vandetanib Contraindicated
- Amitriptyline + Vandetanib Contraindicated
- Anagrelide + Vandetanib Contraindicated
- Asenapine + Vandetanib Contraindicated
- Chloroquine + Vandetanib Contraindicated
Frequently asked questions
Can I take Desflurane with Vandetanib?
MediHelp rates the interaction as major. Desflurane and Vandetanib 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. Vandetanib has a boxed warning for QT prolongation, torsades de pointes and sudden death, and its long half-life means the effect persists for weeks. Adding desflurane increases the arrhythmic risk during anesthesia.
How serious is the interaction between Desflurane and Vandetanib?
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 a recent ECG and correct potassium, magnesium and calcium before surgery. Monitor the ECG continuously, have defibrillation available, and consider alternative anesthetic techniques with less QT effect.
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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