These are in a racemic mixture of equal amounts of left-and-right-handed isomers (Harrison). Amphetamines are psycho-stimulant drugs, called phenethylamines, which stimulate psychological and physiological functions (Collier 2008)
S. Congress passed the Controlled Substance Act in 1970, amphetamines were among those categories as Schedule II drugs (Geist 2007)
Chemistry of Adderall Amphetamines These compounds were first synthesized in 1887 by Lazar Edeleanu at the University of Berlin (Harrison 2007)
Dr. Charles Bradley was the first doctor to prescribe Benzedrine, a psychostimulant, to treat hyperactive children (Logan 2011 web p 1)
Adderall is a controlled substance and the DEA is apparently concerned with the fact that in some cases it can become widely available. As a consequence, the institution has installed tougher legislations meant to limit its presence in drug stores and to discourage individuals who might be inclined to take it in spite of the fact that they do not actually need the substance (Edwards)
"Overnight, Adderall catapulted Shire from a small-time drug company into a major pharmaceutical giant." (Mayes, Bagwell, & Erkulwater 154) Adderall is currently one of the most popular drugs prescribed in cases involving individuals with ADHD and a series of other related disorders