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Drug interactions

Olanzapine + Propofol

Severity: Moderate

Olanzapine and Propofol: 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

Olanzapine can enhance the sedative and hypotensive effects of propofol, so lower propofol doses may be sufficient. Deeper sedation and hemodynamic instability may occur during anesthesia or procedural sedation.

What this interaction means in plain words

Olanzapine and Propofol 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.

Olanzapine belongs to Central Nervous System; Propofol belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive central nervous system depression and vasodilatory hypotension.

What to do

Titrate propofol cautiously to effect and monitor blood pressure and respiration continuously. Inform the anesthesia team that the patient takes olanzapine.

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 Olanzapine with Propofol?

MediHelp rates the interaction as moderate. Olanzapine and Propofol 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. Olanzapine can enhance the sedative and hypotensive effects of propofol, so lower propofol doses may be sufficient. Deeper sedation and hemodynamic instability may occur during anesthesia or procedural sedation.

How serious is the interaction between Olanzapine and Propofol?

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 propofol cautiously to effect and monitor blood pressure and respiration continuously. Inform the anesthesia team that the patient takes olanzapine.

What other medicines interact with Olanzapine?

MediHelp also lists interactions of Olanzapine with, for example, Amisulpride, Amoxapine, Apomorphine. The full list is on the Olanzapine page.

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

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