Drug interactions
Lithium + Sevoflurane
Severity: Moderate
Lithium and Sevoflurane: 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
Sevoflurane can prolong the QT interval and lithium may add to repolarization effects. Lithium may also reduce anesthetic requirements and prolong neuromuscular blockade.
What this interaction means in plain words
Lithium and Sevoflurane 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.
Lithium belongs to Central Nervous System; Sevoflurane belongs to Central Nervous System.
Why it happens
Additive QT prolongation, with lithium altering CNS sensitivity and neuromuscular transmission.
What to do
Check baseline ECG, electrolytes and serum lithium before elective anesthesia, and monitor the ECG intraoperatively. Titrate anesthetic and neuromuscular blocker doses to effect.
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 Lithium
- Lithium + Thioridazine Contraindicated
- Lithium + Vandetanib Contraindicated
- Aceclofenac + Lithium Major
- Acemetacin + Lithium Major
- Amisulpride + Lithium Major
- Amlodipine-benazepril + Lithium Major
Other interactions of Sevoflurane
Frequently asked questions
Can I take Lithium with Sevoflurane?
MediHelp rates the interaction as moderate. Lithium and Sevoflurane 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. Sevoflurane can prolong the QT interval and lithium may add to repolarization effects. Lithium may also reduce anesthetic requirements and prolong neuromuscular blockade.
How serious is the interaction between Lithium and Sevoflurane?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check baseline ECG, electrolytes and serum lithium before elective anesthesia, and monitor the ECG intraoperatively. Titrate anesthetic and neuromuscular blocker doses to effect.
What other medicines interact with Lithium?
MediHelp also lists interactions of Lithium with, for example, Thioridazine, Vandetanib, Aceclofenac. The full list is on the Lithium page.
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