Drug interactions
Buprenorphine buccal + Methocarbamol
Severity: Major
Buprenorphine buccal and Methocarbamol: major 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
Buprenorphine with a sedating muscle relaxant such as methocarbamol can cause profound sedation, respiratory depression, coma or death. Labeling for opioids advises caution with CNS depressants.
What this interaction means in plain words
Buprenorphine buccal and Methocarbamol 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.
Why it happens
Additive CNS and respiratory depression from opioid agonism and methocarbamol.
What to do
Reserve the combination for patients without alternatives, using the lowest doses and shortest duration. Monitor sedation and respiratory function and counsel patients and caregivers.
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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Other interactions of Methocarbamol
Frequently asked questions
Can I take Buprenorphine buccal with Methocarbamol?
MediHelp rates the interaction as major. Buprenorphine buccal and Methocarbamol 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. Buprenorphine with a sedating muscle relaxant such as methocarbamol can cause profound sedation, respiratory depression, coma or death. Labeling for opioids advises caution with CNS depressants.
How serious is the interaction between Buprenorphine buccal and Methocarbamol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Reserve the combination for patients without alternatives, using the lowest doses and shortest duration. Monitor sedation and respiratory function and counsel patients and caregivers.
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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