3-HO-PCP is indeed a mu opioid. Taking a small dose (<5 mg) abolishes symptoms from opioid withdrawal. In higher doses (~10 mg) a disctinctive opiod-feel was present for me, somewhat reminiscent of bromadol.
Completely different (for me, they were). But yeah then again I liked most the delta agonism about bromadol, it was only good after I built up some tolerance to a mu opioid. And 3-HO-PCP didn't feel like either of them really, but well it's a PCP one with probably additional effects no body really knows about yet.. so long I'd say that 3-HO had opioid effects cause it felt somewhat similar to morphine plus O-PCM / DCK.
^^ Yeah I liked deschloroketamine / O-PCM most, much more so than O-PCE which was much too strong at some other side, maybe antagonizing mAChRs. Ok, then again I did not look for some hyper trippy one but a mellow cuddly balanced out disso to dose daily on ... [don't do this at home, kids. Yet I'd do it again. 8)]
Also 3-HO-PCE might /will have been a metabolite of 3-MeO-2'-OxO but a minor one. So maybe it's more than just black & white about everything here ...
Just saw on darknet recently that apparently some guys managed to synth crystalline MXE again, for a pretty high price though but still I have to try it.... Would LOVE to get my hands on these new ones, but the states are far away and they wouldn't let me traveling in either, so well wait & hope the EU fuckers don't catch up too soon with banning them ...
AFAIK we still have to "wait" for the first MXE derivate casualty, don't we? The ArylCycloHexylAmines are the only drug group that was blanked banned widely without a number of deaths to justify that. Or am I wrong?