Drug interactions
Carisoprodol + Esketamine
Severity: Major
Carisoprodol and Esketamine: 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
Carisoprodol is a sedating muscle relaxant metabolized to meprobamate, a barbiturate-like compound. With esketamine, additive sedation and respiratory depression may occur.
What this interaction means in plain words
Carisoprodol and Esketamine 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.
Carisoprodol belongs to Musculoskeletal; Esketamine belongs to Central Nervous System.
Why it happens
Additive CNS depression via GABA-A modulation and NMDA antagonism.
What to do
Avoid the combination if possible; if used, monitor sedation and respiration through the observation period and reduce the carisoprodol dose on session days.
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 Esketamine
Other interactions of Carisoprodol
Frequently asked questions
Can I take Carisoprodol with Esketamine?
MediHelp rates the interaction as major. Carisoprodol and Esketamine 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. Carisoprodol is a sedating muscle relaxant metabolized to meprobamate, a barbiturate-like compound. With esketamine, additive sedation and respiratory depression may occur.
How serious is the interaction between Carisoprodol and Esketamine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination if possible; if used, monitor sedation and respiration through the observation period and reduce the carisoprodol dose on session days.
What other medicines interact with Esketamine?
MediHelp also lists interactions of Esketamine with, for example, Alfentanil, Amobarbital, Belladonna and opium. The full list is on the Esketamine page.
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