Drug interactions
Buprenorphine long-acting + Diazepam
Severity: Major
Buprenorphine long-acting and Diazepam: 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
Benzodiazepines used with long-acting buprenorphine injection may cause profound sedation, respiratory depression, coma and death. The depot effect makes the opioid exposure prolonged and hard to reverse.
What this interaction means in plain words
Buprenorphine long-acting and Diazepam 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 from GABA-A potentiation and mu-opioid receptor activity.
What to do
Avoid or minimize the benzodiazepine, taper where possible, and use the lowest effective dose. Monitor for oversedation and respiratory depression and ensure naloxone access.
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 Diazepam
Frequently asked questions
Can I take Buprenorphine long-acting with Diazepam?
MediHelp rates the interaction as major. Buprenorphine long-acting and Diazepam 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. Benzodiazepines used with long-acting buprenorphine injection may cause profound sedation, respiratory depression, coma and death. The depot effect makes the opioid exposure prolonged and hard to reverse.
How serious is the interaction between Buprenorphine long-acting and Diazepam?
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 or minimize the benzodiazepine, taper where possible, and use the lowest effective dose. Monitor for oversedation and respiratory depression and ensure naloxone access.
What other medicines interact with Diazepam?
MediHelp also lists interactions of Diazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Alfentanil, Alprazolam. The full list is on the Diazepam page.
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