Alpha-PVP Crystals (also known as A-PVP, Alpha-PVP, α-Pyrrolidinopentiophenone or flakka) is a synthetic stimulant drug of the cathinone and pyrovalerone classes. It is chemically similar to other pyrovalerone compounds found in the khat plant of eastern Africa. Generally, it comes in the form of either a crystalline powder or large crystal shards. Users can ingest it to produce the effects which are somewhat similar to that of amphetamine and cocaine.
Alpha-PVP Crystals have a short history of use and is subject to much scrutiny by the media. It is commonly produced in China and sold as a research chemical through online vendors.