A-PVP

alpha-Pyrrolidinovalerophenone (also known as α-PVP, A-PVP, alpha-PVP, and flakka) is a novel stimulant substance of the cathinone class.
α-Pyrrolidinopentiophenone is a synthetic stimulant of the cathinone class developed in the 1960s that has been sold as a designer drug. Colloquially, it is sometimes called flakka. α-PVP is chemically related to pyrovalerone and is the ketone analog of prolintane.