Cyclobenzaprine and Buprenorphine Interaction

Drug interaction information between Cyclobenzaprine and Buprenorphine.

Cyclobenzaprine and Buprenorphine have a documented minor interaction in FDA labeling.

FDA drug labeling documents a minor-severity interaction between Cyclobenzaprine and Buprenorphine. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.

Drug A

Cyclobenzaprine

Muscle Relaxant

Drug B

Buprenorphine

Partial Opioid Agonist

How They Interact

This muscle relaxant and the pain medication both raise serotonin levels. Using them at the same time can cause a toxic reaction in your nervous system.

FDA Label Information

Examples: Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, drugs that affect the serotonin neurotransmitter system (e.g., mirtazapine, trazodone, tramadol), certain muscle relaxants (i.e., cyclobenzaprine, metaxalone), monoamine oxidase inhibitors (those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue). Examples: cyclobenzaprine, metaxalone Diuretics Clinical Impact: Opioids can reduce the efficacy of...

Frequently Asked Questions

What SPL severity band is on file for Cyclobenzaprine + Buprenorphine (Pain)?

Compiled FDA labeling labels this pair minor. That is a source-record field, not an individual medication-combination decision.

Which drug in this pair has the larger labeled-interaction portfolio?

Buprenorphine has 19 labeled pairs on file vs Cyclobenzaprine's 17. In the minor band specifically: Cyclobenzaprine has 14 (also Acetaminophen/Oxycodone, Buprenorphine, Buprenorphine/Naloxone, Codeine); Buprenorphine has 19 (also Gabapentin, Trazodone, Tramadol, Pregabalin).

What mechanism field is on file for Cyclobenzaprine and Buprenorphine (Pain)?

This muscle relaxant and the pain medication both raise serotonin levels. Using them at the same time can cause a toxic reaction in your nervous system.

Buprenorphine's labeled portfolio outnumbers Cyclobenzaprine

SPL source-record counts only. This page's band is minor · classes on file: Cyclobenzaprine (Muscle Relaxant); Buprenorphine (Partial Opioid Agonist).

Cyclobenzaprine

0 major · 3 moderate · 14 minor · 17 total

Buprenorphine

0 major · 0 moderate · 19 minor · 19 total

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.