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 areas racemic amphetamine and dextroamphetamine, which makes a (three:1) ratio (by body weight) in between dextroamphetamine and levoamphetamine, The 2 enantiomers o