Adderall and Mydayis[10] are trade names for a combination drug called mixed amphetamine salts ("MAS" solutions) made up of 4 salts of amphetamine. The combination is made up of equivalent parts racemic amphetamine and dextroamphetamine, which produces a (3:one) ratio (by body weight) amongst dextroamphetamine and levoamphetamine, The 2 enantiomers