It appears to have varying effects on people, depending on dosages and methods of administration.
I'd settle yourself down and get reading the Mephedrone Megathreads, think you'll find many answers and possibly more questions from doing that :D
And welcome to Bluelight and EADDEnjoy yourself and be safe.
Cheers, I've already had a really thorough read of this excellent thread and most people's problems seem to stem from caning it a bit too much.
The stuff I just had there's no way I want to cane it. Might flush it to be honest.