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Drug interactions

Desflurane + Quetiapine

Severity: Moderate

Desflurane and Quetiapine: 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

Volatile anesthetics such as desflurane can prolong the QT interval, and quetiapine has a similar effect. Perioperative use together may increase the risk of ventricular arrhythmias, especially with electrolyte disturbances.

What this interaction means in plain words

Desflurane and Quetiapine 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.

Desflurane belongs to Central Nervous System; Quetiapine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive prolongation of cardiac repolarization (QTc).

What to do

Check the baseline QTc and correct potassium and magnesium before anesthesia. Monitor the ECG during and after surgery rather than stopping chronic quetiapine abruptly.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Desflurane with Quetiapine?

MediHelp rates the interaction as moderate. Desflurane and Quetiapine 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. Volatile anesthetics such as desflurane can prolong the QT interval, and quetiapine has a similar effect. Perioperative use together may increase the risk of ventricular arrhythmias, especially with electrolyte disturbances.

How serious is the interaction between Desflurane and Quetiapine?

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 the baseline QTc and correct potassium and magnesium before anesthesia. Monitor the ECG during and after surgery rather than stopping chronic quetiapine abruptly.

What other medicines interact with Quetiapine?

MediHelp also lists interactions of Quetiapine with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Quetiapine page.

Full monographs, dosing and an interaction checker in the MediHelp app

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