34db7d72____Norris_Cotton_Cancer_Center__hyperactivity_disorder__ADHD__Fact
[Myth] The diagnosis of ADHD is confirmed if certain medicines (psychostimulants) have a positive effect on what seem to be symptoms of ADHD. [Fact] 
Children without ADHD respond to psychostimulants similarly to children with ADHD. A trial of medicine is not used to diagnose the condition.
ADHD Myths and Facts | Health Encyclopedia | Norris Cotton Cancer Center