Drug interactions
Cyclobenzaprine + Zuranolone
Severity: Major
Cyclobenzaprine and Zuranolone: major interaction.
Last updated Sources: US FDA label
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Zuranolone causes marked somnolence and driving impairment, and cyclobenzaprine adds further sedation. Together they may worsen psychomotor impairment and daytime sedation.
What this interaction means in plain words
Cyclobenzaprine and Zuranolone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Cyclobenzaprine belongs to Musculoskeletal; Zuranolone belongs to Central Nervous System.
Why it happens
Additive CNS depression from a GABA-A positive modulator and a sedating muscle relaxant.
What to do
Consider reducing the zuranolone dose or avoiding cyclobenzaprine. Warn patients not to drive or operate machinery while taking both.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Cyclobenzaprine
- Cyclobenzaprine + Isocarboxazid Contraindicated
- Cyclobenzaprine + Linezolid Contraindicated
- Cyclobenzaprine + Phenelzine Contraindicated
- Cyclobenzaprine + Safinamide Contraindicated
- Cyclobenzaprine + Selegiline Contraindicated
- Cyclobenzaprine + Selegiline transdermal Contraindicated
Other interactions of Zuranolone
- Alprazolam + Zuranolone Major
- Amobarbital + Zuranolone Major
- Apalutamide + Zuranolone Major
- Asenapine + Zuranolone Major
- Brexpiprazole + Zuranolone Major
- Butorphanol + Zuranolone Major
Frequently asked questions
Can I take Cyclobenzaprine with Zuranolone?
MediHelp rates the interaction as major. Cyclobenzaprine and Zuranolone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Zuranolone causes marked somnolence and driving impairment, and cyclobenzaprine adds further sedation. Together they may worsen psychomotor impairment and daytime sedation.
How serious is the interaction between Cyclobenzaprine and Zuranolone?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Consider reducing the zuranolone dose or avoiding cyclobenzaprine. Warn patients not to drive or operate machinery while taking both.
What other medicines interact with Cyclobenzaprine?
MediHelp also lists interactions of Cyclobenzaprine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Cyclobenzaprine page.
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