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Drug interactions

Etomidate + Meperidine

Severity: Moderate

Etomidate and Meperidine: 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

Etomidate is an anaesthetic induction agent, and opioids such as meperidine add to its sedative and respiratory depressant effects. Hypotension and apnoea may be more pronounced, and the pair is mostly used in monitored settings.

What this interaction means in plain words

Etomidate and Meperidine 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.

Etomidate belongs to Central Nervous System; Meperidine belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive CNS and respiratory depression via GABA-A potentiation and opioid receptor agonism.

What to do

Give in monitored settings with airway equipment available, and titrate doses to effect. Monitor ventilation, oxygen saturation and blood pressure.

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 Etomidate with Meperidine?

MediHelp rates the interaction as moderate. Etomidate and Meperidine 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. Etomidate is an anaesthetic induction agent, and opioids such as meperidine add to its sedative and respiratory depressant effects. Hypotension and apnoea may be more pronounced, and the pair is mostly used in monitored settings.

How serious is the interaction between Etomidate and Meperidine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give in monitored settings with airway equipment available, and titrate doses to effect. Monitor ventilation, oxygen saturation and blood pressure.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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