double-blind crossover comparison of methylphenidate hydrochloride , dextroamphetamine sulfate , and caffeine after placebo washout in 29 children with minimal brain dysfunction ( mbd ) showed on six ratings that methylphenidate and dextroamphetamine were significantly ( p less than .05 to p less than .001 ) better than placebo and caffeine , but not significantly ( p less than .05 ) different from each other .
C1263846
minimal brain dysfunction
C0025810
methylphenidate