Adderall and Mydayis[10] are trade names for a combination drug identified as mixed amphetamine salts ("MAS" items) that contains 4 salts of amphetamine. The combination is made up of equivalent areas racemic amphetamine and dextroamphetamine, which makes a (three:one) ratio (by excess weight) among dextroamphetamine and levoamphetamine, The 2 enan