A PVP crystals usa on the web ?-Pyrrolidinopentiophenone or flakka) is a synthetic stimulant drug on the cathinone and pyrovalerone courses. It is chemically similar to other pyrovalerone compounds found in the khat plant of eastern Africa.Vibrating Eyesight: Number of from the users complain of nystagmus, a phenomenon that results in non permanent… Read More