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Drug interactions

Desflurane + Methohexital

Severity: Moderate

Desflurane and Methohexital: 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

Methohexital is a barbiturate used for anesthesia induction, and desflurane is commonly used for maintenance. Together they produce additive CNS and cardiorespiratory depression, which is expected in balanced anesthesia but requires dose adjustment.

What this interaction means in plain words

Desflurane and Methohexital 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; Methohexital belongs to Central Nervous System.

Evidence level: High

Why it happens

Additive CNS depression through GABA-A potentiation by both agents.

What to do

Titrate the doses of each agent to clinical effect and monitor hemodynamics, ventilation and depth of anesthesia. Reduce the desflurane concentration as needed after induction.

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 Methohexital?

MediHelp rates the interaction as moderate. Desflurane and Methohexital 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. Methohexital is a barbiturate used for anesthesia induction, and desflurane is commonly used for maintenance. Together they produce additive CNS and cardiorespiratory depression, which is expected in balanced anesthesia but requires dose adjustment.

How serious is the interaction between Desflurane and Methohexital?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Titrate the doses of each agent to clinical effect and monitor hemodynamics, ventilation and depth of anesthesia. Reduce the desflurane concentration as needed after induction.

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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