Drug interactions
Buprenorphine long-acting + Nalbuphine
Severity: Moderate
Buprenorphine long-acting and Nalbuphine: 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
Long-acting injectable buprenorphine provides sustained mu receptor occupancy, which may blunt nalbuphine analgesia or provoke withdrawal. Additive sedation and respiratory depression are also possible.
What this interaction means in plain words
Buprenorphine long-acting and Nalbuphine 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.
Why it happens
Receptor competition between partial agonist and agonist-antagonist opioids plus additive CNS depression.
What to do
Avoid unless essential, and monitor for respiratory depression, sedation and inadequate analgesia. Consider non-opioid analgesia for acute pain.
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?
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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 Buprenorphine long-acting with Nalbuphine?
MediHelp rates the interaction as moderate. Buprenorphine long-acting and Nalbuphine 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. Long-acting injectable buprenorphine provides sustained mu receptor occupancy, which may blunt nalbuphine analgesia or provoke withdrawal. Additive sedation and respiratory depression are also possible.
How serious is the interaction between Buprenorphine long-acting and Nalbuphine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid unless essential, and monitor for respiratory depression, sedation and inadequate analgesia. Consider non-opioid analgesia for acute pain.
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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