Drug interactions
Buprenorphine + Fentanyl intranasal
Severity: Major
Buprenorphine and Fentanyl intranasal: major interaction.
Last updated Sources: US FDA label
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
Both are opioids, so combining them adds to sedation, respiratory depression and hypotension. Buprenorphine's high receptor affinity and partial agonism can also blunt fentanyl analgesia or precipitate withdrawal in opioid-dependent patients.
What this interaction means in plain words
Buprenorphine and Fentanyl intranasal 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 at mu-opioid receptors, plus competitive partial-agonist antagonism of fentanyl by buprenorphine.
What to do
Avoid routine combination; if fentanyl is needed during buprenorphine therapy, use in a monitored setting with careful titration. Monitor respiratory rate, sedation and pain control.
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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References
Other interactions of Buprenorphine
- Alvimopan + Buprenorphine Contraindicated
- Buprenorphine + Calcium / magnesium / potassium / sodium oxybates Contraindicated
- Buprenorphine + Olanzapine / samidorphan Contraindicated
- Buprenorphine + Phenelzine Contraindicated
- Buprenorphine + Pimozide Contraindicated
- Buprenorphine + Thioridazine Contraindicated
Frequently asked questions
Can I take Buprenorphine with Fentanyl intranasal?
MediHelp rates the interaction as major. Buprenorphine and Fentanyl intranasal 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. Both are opioids, so combining them adds to sedation, respiratory depression and hypotension. Buprenorphine's high receptor affinity and partial agonism can also blunt fentanyl analgesia or precipitate withdrawal in opioid-dependent patients.
How serious is the interaction between Buprenorphine and Fentanyl intranasal?
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 routine combination; if fentanyl is needed during buprenorphine therapy, use in a monitored setting with careful titration. Monitor respiratory rate, sedation and pain control.
What other medicines interact with Buprenorphine?
MediHelp also lists interactions of Buprenorphine with, for example, Alvimopan, Calcium / magnesium / potassium / sodium oxybates, Olanzapine / samidorphan. The full list is on the Buprenorphine page.
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