I would avoid MDPV, most horrid shit ive ever taken and doesnt compare with amp in any way.
Thank fuck someone else said it.
I react pretty well to dex-amp, lucky seeing as I have a prescription for inattentive ADHD.
I cant think of a single similarity between the stimulation from MDPV in comparison to dex-amp. I guess that an uncomfortably large dose of dexedrine would result in similar side effects to 'typical' doses of MDPV.
In terms of pro-active stimulation & beneficial effects, I found MDPV transformed me from being fairly useless to useless + tweaked + paranoid, complete with nausea and other discomfort.
Likewise, desoxy was nothing like dexedrine.
4-FluoroAmphetamine has a brief period of serotonin pleasure before it descends into an uncomfortable mess but can spark incredible creativity if you combine it with art or music. Still, with doses around 180mg+ I found that after 3 hours, taking a piss feels like you're passing toxic waste
Butylone was somewhat similar to MDPV. Arguably not so unpleasant but similarly it was totally and utterly useless in comparison to dex-amp. EDIT : Also utterly useless compared to plain old caffeine and the side effects from butylone outweigh the minimal 'constructive' stimulation.
AMT? I suppose, in small doses - though absolutely not a drug to be used daily IMHO...seems to be a substance that I find VERY serotonergic whereas others get more dopamine related effects. AMT, I'd argue, is the absolute antithesis to MDPV and the naster RC stimulants - incredibly forgiving but really not well suited for staving off amp withdrawals.