Adderall and Mydayis[10] are trade names for a mix drug named blended amphetamine salts ("MAS" items) made up of 4 salts of amphetamine. The mixture is composed of equal components racemic amphetamine and dextroamphetamine, which generates a (three:one) ratio (by weight) among dextroamphetamine and levoamphetamine, The 2 enantiomers of amphetamine.