Adderall and Mydayis[ten] are trade names for a combination drug identified as mixed amphetamine salts ("MAS" items) made up of 4 salts of amphetamine. The combination is made up of equal sections racemic amphetamine and dextroamphetamine, which creates a (three:1) ratio (by body weight) among dextroamphetamine and levoamphetamine, The 2 enantiomer