Adderall and Mydayis[ten] are trade names for a mixture drug known as combined amphetamine salts ("MAS" products) containing four salts of amphetamine. The mixture is composed of equal sections racemic amphetamine and dextroamphetamine, which provides a (3:1) ratio (by excess weight) amongst dextroamphetamine and levoamphetamine, The 2 enantiomers