my experience with this stuff is that to begin with it's nice - you can use it, but over time it takes a toll, not even over time - but depending on how many times you do it. i snorted it every time i used it, and licked my fingers etc. not to mention the psychological damage, this stuff also fucks you physically. the causticity of this substance is unmatched. i'm not going to ever use it again due to the following:
ethylphenidate is the first stimulant which has induced some kind of psychotic state in me, and it didn't take a lot. it's poison. i can vividly remember having a chat in my head regarding how "alice" was in control of my mind, but a dark evil force wanted to destroy alice - and i couldn't allow that to happen so i quite literally visually imagined destroying an evil looking village in my mind with my hand in order to protect alice and her good town, but as i grabbed and destroyed the evil village it regrew in other areas. that's the most vivid recollection of the psychosis - but i remember talking to myself A LOT about alice.... and having a genuine belief that this was how my mind worked. not to mention that i continued to snort ethylphen. luckily it ran out, or fucking god knows what my mind would've done.
this and 3,4-ctmp are just the slow burning psychosis inducing drugs. unlike MDPV which induced that state of psychosis instantly, this stuff will consume you slowly until you get there. 3-4,ctmp made me catatonic after around 6-7 hours into the experience, and i can see people dosing again. it took a LOT of benzos AND ALCOHOL (i've never had to use alcohol to bring myself down on any drug before) to remove the catatonic state i was in with 3,4ctmp. these ritalin analogues in my opinion are the most dangerous things to hit the market because it seems as if nothing is being done about them. consider how MDPV induced it's psychotic effects - now research how all these drugs act.
i've NEVER had a bad experience with methylphenidate in comparison. i've taken it at megadoses (500mg+) and apart from the fucking terrible comedown and jitters after the euphoria, no psychosis in the slightest. i don't know what it is about these different esters of ritalnic acid that are causing these terrible effects, but they are present...