Methamphetamine 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
Methamphetamine
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.
You've been prescribed buprenorphine (a pain or opioid-dependence medicine) and methamphetamine (Desoxyn). Both of these can raise activity of a brain chemical called serotonin. When two medicines do that at the same time, there is a chance of a rare but serious reaction called serotonin syndrome.
Warning signs can include agitation, a fast heartbeat, sweating, shivering, muscle twitching, or feeling confused. The good news is this concern is mostly theoretical, and your care team can manage it by starting low, watching you closely, and adjusting as needed. Keep taking both exactly as prescribed and call your doctor or pharmacist if you notice those symptoms.
Effect: Additive serotonergic activity from buprenorphine plus methamphetamine may increase the risk of serotonin syndrome. Cardiovascular effects and sustained brain d-amphetamine concentrations may also be potentiated. Neither agent requires prodrug consideration for this pharmacodynamic interaction.
- Mechanism: additive serotonergic effects (PD interaction).
- Direction: increased serotonergic tone / increased adverse effect risk.
- Evidence: theoretical; severity: major; onset unspecified.
- Management: if coadministration is required, initiate at lower doses, monitor closely during initiation and titration (mental status, autonomic signs, neuromuscular findings, vitals). Discontinue both if serotonin syndrome is suspected.
What happens
An increased risk of serotonin syndrome
Interaction Deep Dive
Giving an amphetamine together with another serotonergic drug can lead to serotonin syndrome, since each agent acts on the serotonergic neurotransmitter system12. There may also be prolonged elevations of d-amphetamine levels within the brain, along with an enhancement of cardiovascular effects1. When clinical circumstances make combined use of an amphetamine and such an agent necessary, begin with reduced doses and observe patients closely, particularly when starting therapy and when adjusting the dose. Both medications should be stopped if serotonin syndrome is suspected32.
Why it happens (mechanism)
Additive serotonergic effects
How to manage this interaction
If your care team decides you need both medicines, here is how they typically handle it:
- Doses may be started low and individualized by your care team, then adjusted carefully.
- You may be monitored more closely, especially when starting or changing a dose.
- Both drugs may be stopped if serotonin syndrome is suspected.
What you should do: keep taking both exactly as prescribed, do not change anything on your own, and tell your pharmacist or prescriber about any agitation, racing heart, sweating, shivering, muscle twitching, or confusion.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Methamphetamine and Buprenorphine together?
Taking buprenorphine with methamphetamine can add up to raise serotonin levels and, rarely, cause serotonin syndrome; keep taking both as prescribed and report agitation, racing heart, sweating, or muscle twitching to your care team. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Methamphetamine 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 Methamphetamine and Buprenorphine interaction managed?
If your care team decides you need both medicines, here is how they typically handle it: Doses may be started low and individualized by your care team, then adjusted carefully. You may be monitored more closely, especially when starting or changing a dose. Both drugs may be stopped if serotonin syndrome is suspected. What you should do: keep taking both exactly as prescribed, do not change anythin… 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 Methamphetamine 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 (3)
- Product Information: VYVANSE(R) oral capsules, oral chewable tablets, lisdexamfetamine dimesylate oral capsules, oral chewable tablets. Shire US Inc (per DailyMed), Lexington, MA, 2018. DailyMed
- Product Information: FETZIMA(R) oral extended-release capsules, levomilnacipran oral extended-release capsules. AbbVie Inc (per FDA), North Chicago, IL, 2023. DailyMed
- Product Information: ADDERALL(R) oral tablets, dextroamphetamine saccharate amphetamine aspartate dextroamphetamine sulfate amphetamine sulfate oral tablets. Teva Select Brands (per FDA), Horsham, PA, 2017. DailyMed
Keep reading about Buprenorphine
Keep reading about Methamphetamine
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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