Adderall and Mydayis[10] are trade names for a mixture drug named blended amphetamine salts ("MAS" items) that contains 4 salts of amphetamine. The combination is composed of equal sections racemic amphetamine and dextroamphetamine, which provides a (three:1) ratio (by excess weight) amongst dextroamphetamine and levoamphetamine, The 2 enantiomers