Metaxalone and Norepinephrine Interaction
Drug interaction information between Metaxalone and Norepinephrine.
Metaxalone and Norepinephrine have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Metaxalone and Norepinephrine. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.
How They Interact
These medications both affect the chemical systems in your brain and nerves. Using them at the same time can lead to an unhealthy buildup of serotonin.
What To Do
Use this combination with caution and tell your doctor immediately if you feel agitated, dizzy, or have a fast heartbeat.
FDA Label Information
Examples of serotonergic drugs include: selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, opioids (particularly fentanyl, meperidine, and methadone), drugs that affect the serotonin neurotransmitter system (e.g., mirtazapine, trazodone, tramadol), monoamine oxidase (MAO) inhibitors (those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue).
Metaxalone Also Interacts With
- Tapentadol moderate
- Trazodone minor
- Mirtazapine minor
- Linezolid minor
- Acetaminophen/Oxycodone minor
Norepinephrine Also Interacts With
- Tranylcypromine major
- Carbidopa/Levodopa moderate
- Clopidogrel moderate
- Deutetrabenazine moderate
- Digoxin moderate
Frequently Asked Questions
Can I take Metaxalone and Norepinephrine together?
This is a minor interaction. Use this combination with caution and tell your doctor immediately if you feel agitated, dizzy, or have a fast heartbeat.
How serious is the interaction between Metaxalone and Norepinephrine?
This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.
Why do Metaxalone and Norepinephrine interact?
These medications both affect the chemical systems in your brain and nerves. Using them at the same time can lead to an unhealthy buildup of serotonin.
Understanding the Metaxalone and Norepinephrine Interaction
FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Metaxalone belongs to the Muscle Relaxant class and Norepinephrine belongs to the Vasopressor (Alpha-1 Agonist) class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: These medications both affect the chemical systems in your brain and nerves. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.
Context around a specific patient determines real-world impact. Metaxalone has 18 total documented interactions on file in this dataset, and Norepinephrine has 50. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: Use this combination with caution and tell your doctor immediately if you feel agitated, dizzy, or have a fast heartbeat. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.
An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Metaxalone or Norepinephrine based on a web page, speak with your prescriber or pharmacist before making any change.
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.
Read our methodology - how this data is sourced, computed, and verified.