Adderall and Mydayis[10] are trade names for a mixture drug called mixed amphetamine salts ("MAS" solutions) containing four salts of amphetamine. The mixture is composed of equal areas racemic amphetamine and dextroamphetamine, which provides a (three:one) ratio (by excess weight) among dextroamphetamine and levoamphetamine, The 2 enantiomers of a