Drug interactions
Amitriptyline + Sevoflurane
Severity: Moderate
Amitriptyline 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
Amitriptyline can enhance the sedative and cardiovascular effects of sevoflurane, and both can prolong the QT interval. This raises the risk of hypotension and arrhythmias during anesthesia.
What this interaction means in plain words
Amitriptyline 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.
Amitriptyline belongs to Central Nervous System; Sevoflurane belongs to Central Nervous System.
Why it happens
Additive CNS depression and QT prolongation.
What to do
Notify the anesthesia team of tricyclic use and monitor ECG and blood pressure continuously. Keep potassium and magnesium within normal range and avoid other QT-prolonging agents perioperatively.
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 Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Other interactions of Sevoflurane
Frequently asked questions
Can I take Amitriptyline with Sevoflurane?
MediHelp rates the interaction as moderate. Amitriptyline 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. Amitriptyline can enhance the sedative and cardiovascular effects of sevoflurane, and both can prolong the QT interval. This raises the risk of hypotension and arrhythmias during anesthesia.
How serious is the interaction between Amitriptyline 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: Notify the anesthesia team of tricyclic use and monitor ECG and blood pressure continuously. Keep potassium and magnesium within normal range and avoid other QT-prolonging agents perioperatively.
What other medicines interact with Amitriptyline?
MediHelp also lists interactions of Amitriptyline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Amitriptyline page.
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