Adderall and Mydayis[10] are trade names for a mixture drug named blended amphetamine salts ("MAS" products) containing 4 salts of amphetamine. The combination is composed of equal parts racemic amphetamine and dextroamphetamine, which generates a (3:1) ratio (by excess weight) involving dextroamphetamine and levoamphetamine, The 2 enantiomers