Flakka (A-PVP)  is a synthetic stimulant of the cathinone class,It’s a strong stimulant with a significant amount of euphoria.Alpha-pyrrolidinovalerophenone – also known as α–PVP, alpha–PVP, gravel, flakka or niff – is one of a number of recreational drugs in the ‘bath salts’

A new synthetic drug called Flakka, or alpha–PVP, can lead to violent delusions, superhuman strength and death in those who overdose.