Adderall and Mydayis[10] are trade names for a combination drug termed mixed amphetamine salts ("MAS" products) that contains 4 salts of amphetamine. The combination is made up of equivalent pieces racemic amphetamine and dextroamphetamine, which creates a (3:1) ratio (by pounds) in between dextroamphetamine and levoamphetamine, the two enantiomers