Frovatriptan and Buprenorphine: 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
Frovatriptan
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.
Both buprenorphine (a pain and addiction medicine) and frovatriptan (a migraine medicine) can raise the activity of a brain chemical called serotonin. When you take them together, that serotonin activity can add up. In rare cases, too much serotonin causes a reaction called serotonin syndrome.
Signs to watch for include feeling restless or agitated, shivering, sweating, a fast heartbeat, muscle twitching or stiffness, or confusion. This is mostly a theoretical concern, so please don't worry or stop anything on your own. Your care team can safely manage this by watching you closely, especially when you first start or change a dose.
Effect: Additive serotonergic activity, theoretical increased risk of serotonin syndrome. Neither agent is metabolically activated in a way that reverses this direction; the concern is pharmacodynamic (PD), not PK.
- Mechanism: Additive effects on the serotonergic neurotransmitter system (buprenorphine has weak serotonergic activity; frovatriptan is a 5-HT1B/1D agonist).
- Onset: Unspecified; highest risk at initiation and dose escalation.
- Evidence: Theoretical.
- Management: Use with caution; monitor for autonomic instability, neuromuscular abnormalities (clonus, hyperreflexia, rigidity), and mental status changes. Discontinue buprenorphine if serotonin syndrome is suspected.
What happens
An increased risk of serotonin syndrome
Interaction Deep Dive
Because of the risk of serotonin syndrome, use buprenorphine cautiously alongside other drugs that influence the serotonergic neurotransmitter system. Should combined therapy be necessary, watch for signs of serotonin syndrome, especially when starting treatment and when doses are being changed21. If serotonin syndrome is suspected, stop buprenorphine1.
Why it happens (mechanism)
Additive serotonergic effects
How to manage this interaction
Keep taking both medicines exactly as prescribed unless your prescriber tells you otherwise. This is a precautionary, theoretical concern, and your care team can manage it.
- Closer monitoring: Your team may watch you more carefully, especially when either drug is started or a dose is changed.
- Know the warning signs: agitation, sweating, shivering, fast heartbeat, muscle twitching or stiffness, or confusion.
- Act early: If you notice these symptoms, contact your prescriber or seek care promptly, as buprenorphine may be stopped if serotonin syndrome is suspected.
- Ask first: Talk with your pharmacist or doctor before making any changes.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Frovatriptan and Buprenorphine together?
Taking buprenorphine and frovatriptan together carries a small, mainly theoretical risk of serotonin syndrome. Keep taking both as prescribed, know the warning signs, and get help quickly if they appear. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Frovatriptan and Buprenorphine 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 Frovatriptan and Buprenorphine interaction managed?
Keep taking both medicines exactly as prescribed unless your prescriber tells you otherwise. This is a precautionary, theoretical concern, and your care team can manage it. Closer monitoring: Your team may watch you more carefully, especially when either drug is started or a dose is changed. Know the warning signs: agitation, sweating, shivering, fast heartbeat, muscle twitching or stiffness, or c… 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 Frovatriptan or Buprenorphine 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 (2)
- Product Information: BRIXADI(TM) subcutaneous extended-release injection, buprenorphine subcutaneous extended-release injection. Braeburn Inc (per FDA), Plymouth Meeting, PA, 2023. DailyMed
- Product Information: PROBUPHINE(R) subdermal implant, buprenorphine subdermal implant. Braeburn Pharmaceuticals Inc (per FDA), Princeton, NJ, 2016.
Keep reading about Buprenorphine
Keep reading about Frovatriptan
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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