Adderall and Mydayis[10] are trade names for a combination drug named mixed amphetamine salts ("MAS" merchandise) made up of 4 salts of amphetamine. The combination is composed of equal areas racemic amphetamine and dextroamphetamine, which creates a (three:1) ratio (by fat) among dextroamphetamine and levoamphetamine, the two enantiomers of amphet