Adderall and Mydayis[10] are trade names for a combination drug named blended amphetamine salts ("MAS" items) that contains 4 salts of amphetamine. The combination is made up of equivalent sections racemic amphetamine and dextroamphetamine, which creates a (3:1) ratio (by pounds) in between dextroamphetamine and levoamphetamine, the two enantiomers