Buprenorphine and Hydromorphone: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 2, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Buprenorphine
Hydromorphone
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
Buprenorphine and hydromorphone can work against each other. Hydromorphone (Dilaudid) is a full opioid pain reliever. Buprenorphine only partially turns on those same opioid receptors, and it grabs onto them tightly. Because of that, buprenorphine can actually block hydromorphone from doing its job, so your pain relief may drop. If your body is used to a full opioid, buprenorphine can even trigger uncomfortable withdrawal (sweating, chills, nausea, aches).
There is also a small chance both drugs together nudge up your serotonin, which in rare cases can cause a serious reaction. The good news is your care team can plan this out and watch you closely. Never stop or change either medicine on your own. Just talk with your pharmacist or doctor.
Direction: Buprenorphine is a high-affinity partial mu-opioid agonist with antagonist properties; co-administration with the full agonist hydromorphone can competitively displace it, reducing hydromorphone analgesia and potentially precipitating withdrawal in opioid-dependent patients. Neither agent is a CYP prodrug, so this is a receptor-level (PD) interaction, not a metabolic one.
- Mechanism: opioid receptor antagonism plus additive serotonergic activity.
- Effect: loss of analgesia, withdrawal, and increased serotonin syndrome risk.
- Evidence: theoretical; serotonin syndrome reported with opioid + serotonergic combinations.
- Management: avoid concomitant use; if serotonergic exposure unavoidable, monitor closely during initiation/titration and discontinue if serotonin syndrome is suspected.
What happens
Reduced analgesic effect or precipitation of withdrawal symptoms and an increased risk of serotonin syndrome
Interaction Deep Dive
Do not use HYDROmorphone together with a partial agonist opioid analgesic or a mixed opioid agonist/antagonist, since doing so can diminish the analgesic effect of HYDROmorphone and may trigger withdrawal symptoms. When HYDROmorphone is given alongside other agents that act on the serotonergic system, monitor the patient closely, particularly during the initiation and titration phases, because the likelihood of serotonin syndrome is elevated; stop treatment if it is suspected. Serotonin syndrome, which can be life-threatening, has been documented when opioids are used concurrently with serotonergic drugs123.
Why it happens (mechanism)
Opioid receptor antagonism; additive serotonergic effects
How to manage this interaction
What your care team may do:
- Generally avoid combining hydromorphone with buprenorphine, since buprenorphine can blunt hydromorphone's pain relief and trigger withdrawal.
- Choose one opioid approach rather than overlapping them, with the dose individualized to you.
- Watch you closely, especially when starting or adjusting, for withdrawal or signs of serotonin syndrome (agitation, fast heart rate, sweating, shivering, muscle twitching).
What you should do: Keep taking your medicines exactly as prescribed and do not stop either one on your own. Tell your pharmacist or prescriber that you take both, and report any withdrawal symptoms, worsening pain, or the symptoms above right away.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
1 report — tap to read
Common questions
Can I take Buprenorphine and Hydromorphone together?
Buprenorphine can block hydromorphone's pain relief and may trigger withdrawal, with a smaller added risk of serotonin syndrome, so these are usually not used together. Let your pharmacist or doctor coordinate your opioid plan. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Buprenorphine and Hydromorphone interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How is the Buprenorphine and Hydromorphone interaction managed?
What your care team may do: Generally avoid combining hydromorphone with buprenorphine, since buprenorphine can blunt hydromorphone's pain relief and trigger withdrawal. Choose one opioid approach rather than overlapping them, with the dose individualized to you. Watch you closely, especially when starting or adjusting, for withdrawal or signs of serotonin syndrome (agitation, fast heart rate, swe… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
Questions for your pharmacist
- Does my dose of Buprenorphine or Hydromorphone need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (3)
- Product Information: EXALGO(R) oral extended-release tablets, hydromorphone HCl oral extended-release tablets. SpecGx LLC (per FDA), Webster Groves, MO, 2019. DailyMed
- Product Information: DILAUDID(R) intravenous injection, intramuscular injection, subcutaneous injection, hydromorphone HCl intravenous injection, intramuscular injection, subcutaneous injection. Fresenius Kabi. (per FDA), Lake Zurich, IL, 2023. DailyMed
- Product Information: DILAUDID(R) oral tablets, oral solution, hydromorphone HCl oral tablets, oral solution. Rhodes Pharmaceuticals LP (per FDA), Wilson, NC, 2023. DailyMed
Keep reading about Buprenorphine
Keep reading about Hydromorphone
These medications also interact with supplements
Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
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