Adderall and Mydayis[10] are trade names for a mixture drug called mixed amphetamine salts ("MAS" items) containing 4 salts of amphetamine. The mixture is composed of equivalent areas racemic amphetamine and dextroamphetamine, which generates a (3:one) ratio (by fat) amongst dextroamphetamine and levoamphetamine, the two enantiomers of amphetamine.