Adderall and Mydayis[ten] are trade names for a mixture drug called mixed amphetamine salts ("MAS" merchandise) made up of 4 salts of amphetamine. The combination is made up of equivalent parts racemic amphetamine and dextroamphetamine, which produces a (3:1) ratio (by bodyweight) among dextroamphetamine and levoamphetamine, the two enantiomers of