Details
| Metabolite | Norbuprenorphine |
| Chemical Formula | C₃₅H₄₉NO₁₀ |
| Molecular Weight | 643.76 |
| Information | Buprenorphine presence indicates use or exposure. Not a recognized metabolite of any other drug. Included in Suboxone (along with naloxone). Norbuprenorphine is not a known metabolite of any drug other than buprenorphine. Presence indicates buprenorphine use. |
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