Drug interactions
Nalbuphine + Pentobarbital
Severity: Major
Nalbuphine and Pentobarbital: 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
Barbiturates combined with opioids give additive sedation and respiratory depression, which can progress to coma or death. Risk is greatest at higher doses or in patients with compromised breathing.
What this interaction means in plain words
Nalbuphine and Pentobarbital 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.
Why it happens
Additive CNS and respiratory depression via opioid receptors and barbiturate enhancement of GABA-A activity.
What to do
Avoid unless clearly required; use reduced doses and monitor respiratory rate, oxygenation and level of consciousness.
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?
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Other interactions of Nalbuphine
- Alvimopan + Nalbuphine Contraindicated
- Nalbuphine + Olanzapine / samidorphan Contraindicated
- Alprazolam + Nalbuphine Major
- Amobarbital + Nalbuphine Major
- Benzhydrocodone / acetaminophen + Nalbuphine Major
- Brexanolone + Nalbuphine Major
Frequently asked questions
Can I take Nalbuphine with Pentobarbital?
MediHelp rates the interaction as major. Nalbuphine and Pentobarbital 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. Barbiturates combined with opioids give additive sedation and respiratory depression, which can progress to coma or death. Risk is greatest at higher doses or in patients with compromised breathing.
How serious is the interaction between Nalbuphine and Pentobarbital?
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 unless clearly required; use reduced doses and monitor respiratory rate, oxygenation and level of consciousness.
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.
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