Adderall and Mydayis[10] are trade names for a mixture drug called blended amphetamine salts ("MAS" merchandise) made up of 4 salts of amphetamine. The combination is made up of equal elements racemic amphetamine and dextroamphetamine, which produces a (3:1) ratio (by pounds) in between dextroamphetamine and levoamphetamine, the two enantiomers of