Adderall and Mydayis[ten] are trade names for a combination drug known as combined amphetamine salts ("MAS" items) that contains 4 salts of amphetamine. The mixture is composed of equivalent components racemic amphetamine and dextroamphetamine, which provides a (3:1) ratio (by fat) between dextroamphetamine and levoamphetamine, the two enantiomers