Methylphenidate for Treating Attention Deficit Hyperactivity Disorder in Children With Both ADHD and Epilepsy

"Participants will first take either immediate release MPH or placebo A for 1 day. On Day 2 of treatment, participants assigned to receive XR-MPH will begin taking it, and participants assigned to receive placebo will switch to placebo B. This treatment phase will continue for 6 days to 4 weeks, depending on weight, and will then be followed by a 1-week medication washout period. Target dose depends on the weight of the participant. Possible dose forms include 18, 36, 54 mg OROS-MPH."