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Drug interactions

Pentobarbital + Propofol

Severity: Major

Pentobarbital and Propofol: 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 together with propofol produces additive sedation, respiratory depression and hypotension. Deeper than intended anesthesia or apnea may occur.

What this interaction means in plain words

Pentobarbital and Propofol 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

Both drugs enhance GABA-A receptor activity, producing additive CNS and respiratory depression.

What to do

Reduce propofol doses and titrate carefully with continuous monitoring of ventilation and blood pressure. Ensure airway support is ready.

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 Propofol?

MediHelp rates the interaction as major. Pentobarbital and Propofol 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 together with propofol produces additive sedation, respiratory depression and hypotension. Deeper than intended anesthesia or apnea may occur.

How serious is the interaction between Pentobarbital and Propofol?

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 propofol doses and titrate carefully with continuous monitoring of ventilation and blood pressure. Ensure airway support is ready.

What other medicines interact with Propofol?

MediHelp also lists interactions of Propofol with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Propofol page.

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

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