in a double-blind trial of placebo , dextro-amphetamine , racemic-amphetamine , and methylphenidate , each used for a week , in 48 children with the diagnosis of minimal brain dysfunction or hyperkinetic syndrome , it was found that although on the average dextro-amphetamine as well as methylphenidate was significantly superior to racemic-amphetamine , with side effects about the same , in some cases racemic-amphetamine was superior to both dextro-amphetamine and methylphenidate .
C1263846
hyperkinetic syndrome
C0002658
amphetamine