Adderall and Mydayis[ten] are trade names for a mixture drug named blended amphetamine salts ("MAS" items) that contains 4 salts of amphetamine. The combination is made up of equivalent parts racemic amphetamine and dextroamphetamine, which generates a (3:1) ratio (by fat) concerning dextroamphetamine and levoamphetamine, the two enantiomers of amp