Linezolid Injection and Tapentadol: Interaction Details
AI-assisted, pharmacist-reviewed · Source data updated Aug 8, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Tapentadol
Linezolid Injection
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.
What happens
An increased risk of serotonin syndrome or hypertensive crisis
Interaction Deep Dive
Concomitant administration of tapentadol and an MAOI is contraindicated, and a minimum of 14 days should elapse after discontinuing an MAOI before initiating therapy with tapentadol. Concurrent administration or overlapping therapy with tapentadol and an MAOI may result in CNS toxicity or serotonin syndrome, a hyper-serotonergic state characterized by symptoms such as agitation, changes in mental status, tachycardia, hyperthermia, hyperreflexia, nausea, vomiting, and diarrhea . Although symptoms usually occur within several hours to days of concomitant use, they may occur later12. Concomitant use may also result in hypertensive reaction or crisis 3.
Why it happens (mechanism)
Additive serotonergic effects
Common questions
Can I take Linezolid Injection and Tapentadol together?
An increased risk of serotonin syndrome or hypertensive crisis Always confirm with your pharmacist or prescriber before making any change.
How serious is the Linezolid Injection and Tapentadol interaction?
It is rated contraindicated. These should generally not be used together.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
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 Linezolid Injection or Tapentadol 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: NUCYNTA(R) ER oral extended-release tablets, tapentadol oral extended-release tablets. Collegium Pharmaceutical Inc (per FDA), Stoughton, MA, 2021. DailyMed
- Product Information: NUCYNTA(R) oral tablets, tapentadol oral tablets. Collegium Pharmaceutical Inc (per FDA), Stoughton, MA, 2023. DailyMed
- Product Information: PARNATE(R) oral tablets, tranylcypromine oral tablets. Concordia Pharmaceuticals, Inc. (per FDA), Kansas City, MO, 2018. DailyMed
Keep reading about Tapentadol
Keep reading about Linezolid Injection
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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