Adderall and Mydayis[10] are trade names for a combination drug identified as blended amphetamine salts ("MAS" items) that contains 4 salts of amphetamine. The combination is made up of equivalent parts racemic amphetamine and dextroamphetamine, which makes a (3:one) ratio (by pounds) between dextroamphetamine and levoamphetamine, the two enantiome