Adderall and Mydayis[ten] are trade names for a mixture drug known as combined amphetamine salts ("MAS" solutions) made up of four salts of amphetamine. The mixture is composed of equal components racemic amphetamine and dextroamphetamine, which creates a (3:1) ratio (by weight) in between dextroamphetamine and levoamphetamine, the two enantiomers