4DQSAR
Bluelighter
- Joined
- Feb 3, 2025
- Messages
- 5,447
@Them Witches - I'm uncertain if buprenorphine is displaced by fentanyl but as I mentioned, the one report I read said sufentanil was prescribed. Stuff that requires the presence of equipement to deal with respiratory collapse i.e. only IN a hospital.
A few people seem to think norbuprenorphine is significant but I found a paper that demonstrated the fact that norbutorprenorphine is actively transported out of the brain. Yes, it MAY have some peripheral activity, but in knockout mice without the transport, norbuprenorphine triggered respiratory collapse. So in clients who may not have an efficient P-glycoprotein transport are at risk of fatal overdoses.
I did try to find data on fatal overdoses and they measured the levels of norbuprenorphine. But we don't REALLY know as nobody is actually keeping a systemtatic count of fatal buprenorphine intoxication. I could not work out why every paper cited a 2007-2011 study... until I checked and the answer was that no later study exists. So we don't know how dangerous buprenorphine is. Again, being an old drug it avoids the makers having to invest in what is termed 'stage 4' trials AKA pharmakovigilance AKA paying for studies.
A few people seem to think norbuprenorphine is significant but I found a paper that demonstrated the fact that norbutorprenorphine is actively transported out of the brain. Yes, it MAY have some peripheral activity, but in knockout mice without the transport, norbuprenorphine triggered respiratory collapse. So in clients who may not have an efficient P-glycoprotein transport are at risk of fatal overdoses.
I did try to find data on fatal overdoses and they measured the levels of norbuprenorphine. But we don't REALLY know as nobody is actually keeping a systemtatic count of fatal buprenorphine intoxication. I could not work out why every paper cited a 2007-2011 study... until I checked and the answer was that no later study exists. So we don't know how dangerous buprenorphine is. Again, being an old drug it avoids the makers having to invest in what is termed 'stage 4' trials AKA pharmakovigilance AKA paying for studies.
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