Drug interactions
Clonazepam + Methocarbamol
Severity: Moderate
Clonazepam and Methocarbamol: moderate interaction.
Last updated
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
Both drugs depress the central nervous system, and clonazepam is a long-acting benzodiazepine. The combination can cause marked sedation, impaired coordination and, at higher doses or with other depressants, respiratory depression.
What this interaction means in plain words
Clonazepam and Methocarbamol can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Clonazepam belongs to Central Nervous System; Methocarbamol belongs to Musculoskeletal.
Why it happens
Additive CNS depression via GABA-A potentiation by the benzodiazepine and central muscle relaxant activity of methocarbamol.
What to do
Use the lowest effective doses and monitor for oversedation and respiratory depression, particularly in older or frail patients. Counsel against alcohol and driving.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Methocarbamol
Other interactions of Clonazepam
- Calcium / magnesium / potassium / sodium oxybates + Clonazepam Contraindicated
- Clonazepam + Sodium oxybate Contraindicated
- Alfentanil + Clonazepam Major
- Alprazolam + Clonazepam Major
- Amobarbital + Clonazepam Major
- Belladonna and opium + Clonazepam Major
Frequently asked questions
Can I take Clonazepam with Methocarbamol?
MediHelp rates the interaction as moderate. Clonazepam and Methocarbamol can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both drugs depress the central nervous system, and clonazepam is a long-acting benzodiazepine. The combination can cause marked sedation, impaired coordination and, at higher doses or with other depressants, respiratory depression.
How serious is the interaction between Clonazepam and Methocarbamol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor for oversedation and respiratory depression, particularly in older or frail patients. Counsel against alcohol and driving.
What other medicines interact with Methocarbamol?
MediHelp also lists interactions of Methocarbamol with, for example, Alfentanil, Amobarbital, Belladonna and opium. The full list is on the Methocarbamol page.
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