Adderall and Mydayis[ten] are trade names for a combination drug named blended amphetamine salts ("MAS" products) that contains 4 salts of amphetamine. The mixture is made up of equal elements racemic amphetamine and dextroamphetamine, which makes a (three:one) ratio (by excess weight) amongst dextroamphetamine and levoamphetamine, The 2 enantiomer