Adderall and Mydayis[ten] are trade names for a mixture drug referred to as combined amphetamine salts ("MAS" products) containing four salts of amphetamine. The mixture is composed of equal elements racemic amphetamine and dextroamphetamine, which makes a (3:1) ratio (by bodyweight) involving dextroamphetamine and levoamphetamine, The 2 enantiomer