Drug interactions
Carisoprodol + Meperidine
Severity: Major
Carisoprodol and Meperidine: 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 that adds to the CNS and respiratory depression of opioids. The combination raises the risk of drowsiness, impaired coordination, and respiratory depression, especially in older or opioid-naive patients.
What this interaction means in plain words
Carisoprodol and Meperidine 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; Meperidine belongs to Musculoskeletal.
Why it happens
Additive CNS and respiratory depression.
What to do
Avoid the combination where possible; if needed, use the lowest effective doses for the shortest time and monitor sedation and respiratory rate. Counsel the patient against driving and alcohol.
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 Meperidine
- Alvimopan + Meperidine Contraindicated
- Isocarboxazid + Meperidine Contraindicated
- Meperidine + Methylene blue Contraindicated
- Meperidine + Olanzapine / samidorphan Contraindicated
- Meperidine + Phenelzine Contraindicated
- Meperidine + Procarbazine Contraindicated
Other interactions of Carisoprodol
Frequently asked questions
Can I take Carisoprodol with Meperidine?
MediHelp rates the interaction as major. Carisoprodol and Meperidine 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 that adds to the CNS and respiratory depression of opioids. The combination raises the risk of drowsiness, impaired coordination, and respiratory depression, especially in older or opioid-naive patients.
How serious is the interaction between Carisoprodol and Meperidine?
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 where possible; if needed, use the lowest effective doses for the shortest time and monitor sedation and respiratory rate. Counsel the patient against driving and alcohol.
What other medicines interact with Meperidine?
MediHelp also lists interactions of Meperidine with, for example, Alvimopan, Isocarboxazid, Methylene blue. The full list is on the Meperidine page.
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