Skip to content

Drug interactions

Gabapentin + Nalbuphine

Severity: Major

Gabapentin and Nalbuphine: 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

Combining gabapentin with an opioid raises the risk of profound sedation, respiratory depression and death. Older patients and those with respiratory disease are particularly vulnerable.

What this interaction means in plain words

Gabapentin and Nalbuphine 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.

Gabapentin belongs to Central Nervous System; Nalbuphine belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive CNS and respiratory depression.

What to do

Use the lowest effective doses with gradual titration and monitor for sedation and slowed breathing. Avoid other sedatives where possible.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Gabapentin and Nalbuphine, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 14 days on the web. No card needed.

Frequently asked questions

Can I take Gabapentin with Nalbuphine?

MediHelp rates the interaction as major. Gabapentin and Nalbuphine 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. Combining gabapentin with an opioid raises the risk of profound sedation, respiratory depression and death. Older patients and those with respiratory disease are particularly vulnerable.

How serious is the interaction between Gabapentin and Nalbuphine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses with gradual titration and monitor for sedation and slowed breathing. Avoid other sedatives where possible.

What other medicines interact with Nalbuphine?

MediHelp also lists interactions of Nalbuphine with, for example, Alvimopan, Olanzapine / samidorphan, Alprazolam. The full list is on the Nalbuphine 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.

Browse A–Z · Drug interactions

Get the app Sign in