Adderall and Mydayis[10] are trade names for a combination drug termed blended amphetamine salts ("MAS" merchandise) made up of 4 salts of amphetamine. The mixture is composed of equal components racemic amphetamine and dextroamphetamine, which creates a (3:one) ratio (by pounds) in between dextroamphetamine and levoamphetamine, the two enantiomers