Many studies have demonstrated the short-term efficacy of stimulant drugs
in decreasing the symptoms of Attention Deficit Hyperactivity Disorder
(ADHD). However, long-term studies have not shown a similar effect. In
this study, we report an audit of the medium-term outcome of 50 children
with ADHD referred to a mental health service and treated with stimulants
for at least 6 months. A poor outcome group was identified consisting of
30% of the children. As a group, they received a significantly higher dose
of stimulant. More studies, with prospective design, are required to
examine the medium-term outcome of children with ADHD on medication.