now although im not sure about the receptors being the same as salvia i do know alot about subs and have been on them myself for a few years. IMO i dont think its anything of the same or sort. suboxone is an antagonist opiate so in a sense its the same as other opiates except it does have some different effects. i shouldnt be the say all end all on this subject but i do know quite a bit and would be surprised if salvia and subs worked on any receptor the same way or anything of that sort. best of luck with your opiate addiction as well i know how terrible it can really be. im still pickin the pieces of my life back up after that shit...touchy subject for me.
Bupe is a mixed agonist/antagonist at the mu opioid receptor (responsible for pain relief and and euphoria). Meaning it will act as an antagonist if you're on full agonists like oxy or heroin and throw you into withdrawal it acts as an agonist by itself at low to medium doses. It's why it has rapidly diminishing effects as you up the dose past about 16mg.
It is also a full agonist at the kappa receptor, which is the same receptor that Salvinorin activates. It is a much less potent agonist though. Kappa can cause hallucinations when really activated, but less activation is mainly felt as a stimulant effect. Many people have difficulty sleeping when starting on bupe. Oxy also has some effects at kappa (though much less than bupe), which is why it is a somewhat stimulating opioid when compared to say morphine with much less kappa activity.
I'm pretty sensitive to kappa effects and when I started on bupe it had a slight effect, a kind of primal stimulation that went away in the first two days or so but was pretty marked when I started.
