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Drug interactions

Hydromorphone + Meperidine

Severity: Major

Hydromorphone and Meperidine: 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 opioid agonists together add to sedation, respiratory depression and hypotension. Meperidine also has a neurotoxic metabolite, normeperidine, that can cause seizures, especially in renal impairment.

What this interaction means in plain words

Hydromorphone and Meperidine 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.

Hydromorphone belongs to Musculoskeletal; Meperidine belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive opioid receptor-mediated CNS and respiratory depression.

What to do

Avoid concurrent use; if opioid rotation is needed, reduce the dose and monitor sedation and respiration. Prefer hydromorphone alone.

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 Hydromorphone with Meperidine?

MediHelp rates the interaction as major. Hydromorphone and Meperidine 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 opioid agonists together add to sedation, respiratory depression and hypotension. Meperidine also has a neurotoxic metabolite, normeperidine, that can cause seizures, especially in renal impairment.

How serious is the interaction between Hydromorphone and Meperidine?

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 concurrent use; if opioid rotation is needed, reduce the dose and monitor sedation and respiration. Prefer hydromorphone alone.

What other medicines interact with Hydromorphone?

MediHelp also lists interactions of Hydromorphone with, for example, Alvimopan, Bupropion-naltrexone, Isocarboxazid. The full list is on the Hydromorphone page.

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