Adderall and Mydayis[10] are trade names for a combination drug known as combined amphetamine salts ("MAS" items) containing four salts of amphetamine. The combination is made up of equal areas racemic amphetamine and dextroamphetamine, which makes a (three:one) ratio (by bodyweight) involving dextroamphetamine and levoamphetamine, The 2 enantiomer