Drug interactions
Cyclobenzaprine + Escitalopram
Severity: Major
Cyclobenzaprine and Escitalopram: 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
Escitalopram and cyclobenzaprine both increase serotonergic activity and may cause serotonin syndrome. Both can also prolong the QT interval or affect cardiac conduction, adding a cardiac concern.
What this interaction means in plain words
Cyclobenzaprine and Escitalopram 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; Escitalopram belongs to Central Nervous System.
Why it happens
Additive serotonin reuptake inhibition, with possible additive QT prolongation.
What to do
Choose a non-serotonergic muscle relaxant where possible. If combined, monitor for serotonin toxicity and consider ECG in patients with cardiac risk factors.
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 Escitalopram
- Cisapride + Escitalopram Contraindicated
- Citalopram + Escitalopram Contraindicated
- Escitalopram + Isocarboxazid Contraindicated
- Escitalopram + Methylene blue Contraindicated
- Escitalopram + Phenelzine Contraindicated
- Escitalopram + Pimozide Contraindicated
Frequently asked questions
Can I take Cyclobenzaprine with Escitalopram?
MediHelp rates the interaction as major. Cyclobenzaprine and Escitalopram 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. Escitalopram and cyclobenzaprine both increase serotonergic activity and may cause serotonin syndrome. Both can also prolong the QT interval or affect cardiac conduction, adding a cardiac concern.
How serious is the interaction between Cyclobenzaprine and Escitalopram?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Choose a non-serotonergic muscle relaxant where possible. If combined, monitor for serotonin toxicity and consider ECG in patients with cardiac risk factors.
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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