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Drug interactions

Meperidine + Sufentanil sl

Severity: Major

Meperidine and Sufentanil sl: 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

Two opioids together increase the risk of profound sedation, respiratory depression, hypotension and death. Sublingual sufentanil is potent, so added meperidine can quickly produce opioid excess.

What this interaction means in plain words

Meperidine and Sufentanil sl 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: High

Why it happens

Additive mu-opioid receptor agonism causing CNS and respiratory depression.

What to do

Avoid combining unless necessary; if both are used, limit doses and monitor respiratory rate, sedation and blood pressure.

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 Meperidine with Sufentanil sl?

MediHelp rates the interaction as major. Meperidine and Sufentanil sl 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. Two opioids together increase the risk of profound sedation, respiratory depression, hypotension and death. Sublingual sufentanil is potent, so added meperidine can quickly produce opioid excess.

How serious is the interaction between Meperidine and Sufentanil sl?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining unless necessary; if both are used, limit doses and monitor respiratory rate, sedation 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

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