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Drug interactions

Pentobarbital + Sevoflurane

Severity: Major

Pentobarbital 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

Pentobarbital is a barbiturate that produces strong CNS depression, and combined with sevoflurane it deepens anesthesia and can cause respiratory depression and hypotension. Recovery may be prolonged.

What this interaction means in plain words

Pentobarbital 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.

Evidence level: Moderate

Why it happens

Additive GABA-A mediated CNS depression.

What to do

Reduce sevoflurane concentration to effect and monitor ventilation, blood pressure and depth of anesthesia. Provide airway support as needed through recovery.

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?

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 Pentobarbital with Sevoflurane?

MediHelp rates the interaction as major. Pentobarbital 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. Pentobarbital is a barbiturate that produces strong CNS depression, and combined with sevoflurane it deepens anesthesia and can cause respiratory depression and hypotension. Recovery may be prolonged.

How serious is the interaction between Pentobarbital 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: Reduce sevoflurane concentration to effect and monitor ventilation, blood pressure and depth of anesthesia. Provide airway support as needed through recovery.

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.

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

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