Drug interactions
Lefamulin + Sevoflurane
Severity: Major
Lefamulin and Sevoflurane: 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
Lefamulin can prolong the QT interval, especially with intravenous use, and sevoflurane has a similar effect. Together they may increase the risk of ventricular arrhythmias including torsades de pointes.
What this interaction means in plain words
Lefamulin and Sevoflurane 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.
Lefamulin belongs to Anti Bacterial; Sevoflurane belongs to Central Nervous System.
Why it happens
Additive delay of ventricular repolarization.
What to do
Check a baseline ECG and correct hypokalemia and hypomagnesemia. Monitor the ECG during anesthesia, or choose a non-QT-prolonging antibiotic if the procedure is elective.
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 Sevoflurane
Other interactions of Lefamulin
- Lefamulin + Methadone Contraindicated
- Lefamulin + Pimavanserin Contraindicated
- Lefamulin + Pimozide Contraindicated
- Lefamulin + Quinidine Contraindicated
- Alfuzosin + Lefamulin Major
- Amiodarone + Lefamulin Major
Frequently asked questions
Can I take Lefamulin with Sevoflurane?
MediHelp rates the interaction as major. Lefamulin and Sevoflurane 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. Lefamulin can prolong the QT interval, especially with intravenous use, and sevoflurane has a similar effect. Together they may increase the risk of ventricular arrhythmias including torsades de pointes.
How serious is the interaction between Lefamulin and Sevoflurane?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check a baseline ECG and correct hypokalemia and hypomagnesemia. Monitor the ECG during anesthesia, or choose a non-QT-prolonging antibiotic if the procedure is elective.
What other medicines interact with Sevoflurane?
MediHelp also lists interactions of Sevoflurane with, for example, Amiodarone, Amisulpride, Arsenic trioxide. The full list is on the Sevoflurane page.
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