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Drug interactions

Meperidine + Zotepine

Severity: Moderate

Meperidine and Zotepine: 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

Zotepine is a sedating antipsychotic that adds to meperidine's CNS depression, with increased drowsiness and hypotension. Zotepine also lowers the seizure threshold, which may be relevant given the risk of seizures from normeperidine.

What this interaction means in plain words

Meperidine and Zotepine 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.

Evidence level: Low

Why it happens

Additive CNS depression and additive lowering of seizure threshold.

What to do

Use reduced doses and monitor sedation, blood pressure and seizure activity. Consider an alternative opioid in patients with seizure risk.

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 Meperidine with Zotepine?

MediHelp rates the interaction as moderate. Meperidine and Zotepine 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. Zotepine is a sedating antipsychotic that adds to meperidine's CNS depression, with increased drowsiness and hypotension. Zotepine also lowers the seizure threshold, which may be relevant given the risk of seizures from normeperidine.

How serious is the interaction between Meperidine and Zotepine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use reduced doses and monitor sedation, blood pressure and seizure activity. Consider an alternative opioid in patients with seizure risk.

What other medicines interact with Meperidine?

MediHelp also lists interactions of Meperidine with, for example, Alvimopan, Isocarboxazid, Methylene blue. The full list is on the Meperidine page.

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

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