Is this any new information regarding bupe, norbupe, and the whole "less is more" theory?
http://derekwmeyer.blogspot.com/2011/07/followup-to-less-is-more-buprenorphine.html
"...Buprenorphine has NOT been proven in humans to have a bell-shaped dose response curve; also, this bell-shaped response shown in lab-studies was shown for only certain effects. Even assuming that bupe indeed does produce an actual DECREASE in intrinsic activity at higher doses, this pattern would take place beyond the 0 to 8mg level, more likely in doses well in excess of the clinically observed (many times over, in hundreds of subjects) ceiling range of buprenorphine's intrinsic ceiling (roughly the 24 to 32mg range) for tolerant/dependent maintenance users.
Again, there is no solid evidence in humans that buprenorphine's intrinsic activity actually DECREASES at higher doses , rather than simply level off with no further increase.
Also; I think some folks are misinterpreting the context in which the term "mixed agonist-antagonist" is used in reference to buprenorphine; this refers to its ability to produce positive analgesic & reinforcing agonist acvtivity in post-detox opioid users or opioid naiive individuals while at the same time, playing the role of an antagonist with its tighly bound blocking of full agonists from associating with mu-receptors (this indeed is an antagonizing property) - additional properties earning it the antagonist reference include its tendency to precipitate withdrawal via its competitive binding in place of full agonists in dependent individuals, leading to a net-decrease in intrinsic activity, thus, acute opioid withdrawal (a property similar to naloxone).
It may also be taken in part to reference the kappa antagonist effect of buprenorphine. Considering the aforementioned properties along with its limited agonist properties, bupe can be referred to as an agonist/antagonist, or an opioid partial agonist with individual antagonist traits under certain conditions.
This is not at all to say that I am refuting the possibility of a bell shaped dose response curve in humans, particularly in the maintenance context, but to try and explain what I believe is misunderstood by some; it doesn't help with people all over the web perpetuating the phrase "less is more" as if it's really so simple.. Indeed many have actually listened to this type of anecdote and end up either sick, or "craving" (i.e. inadequately medicated)
Yes, with low doses of bupe, if one's tolerance permits, one will experience pronounced euphoric/anxiolytic and opiate-type effects and actually FEEL each dose, as opposed to feeling no lift, no glow, and no increase in effect as with higher maintenance range doses (4 to 16mg) and I believe this is leading some to believe that the higher (plateau-level doses) are in fact providing a LESSER intrinsic agonist effect than these fun little micro-doses.
Believe it or not - though a higher dose (8 to 12mg for instance) may not produce the obvious glow you feel at .5 to 1mg, you are in fact MORE stimulated than you are with the micro-dose (which is indeed why you feel so little). That's right, an 8mg dose will keep withdrawal at bay longer, and more effectively than a 1mg dose.
There's much more to it than "less is more", and this statement is almost senseless in a way, and comes riddled with assumptions which have never been proven clinically in the human-maintenance setting; and even if it were, this particular myth still would not apply. as this mythological NET-DECREASE in mu-stimulation would take place in double digit doses well beyond the typical maintenance range.. (opposed to a 0 to 2mg range)
So, micro dosers; by all means continue low dose bupe, I am happy you are able to keep yourself in that low range and am not surprised you "feel" more, but what alot of these folks suggest to someone such as this OP who in fact do not find these low doses effective (and won't unless they taper themselves to this level of tolerance), is a bit misleading, very misleading actually. I say that with all due respect.
I'm just weary of hearing this already somewhat strangely chosen -and more methaphorical than factual - phrase taken far out of context in a way that simplifies and distorts the true understanding of bupe's pharmacological properties