Aniracetam (Draganon, Sarpul, Ampamet, Memodrin, Referan), also known as N-anisoyl-2-pyrrolidinone, is an ampakine nootropic of the racetam chemical class purported to be considerably more potent than piracetam. It is lipid-soluble and has possible cognition-enhancing effects. It has been tested in animals extensively, Alzheimer's patients, and temporarily impaired healthy subjects. It has shown potential as an anxiolytic in three clinical animal models. It is sold in Europe as a prescription drug, but it is not approved by the Food and Drug Administration for use in the United States.