TICS, Methylphenidate, and ADHD

Abstract

The effects of methylphenidate (MPH) on the frequency and severity of tics in 91 children with attention-deficit hyperactivity disorder, with and without comorbid tics, were determined in a 1-year prospective, placebo-controlled study at the Hospital for Sick Children, Toronto, Canada.

Keywords

• methylphenidate
• attention-deficit hyperactivity
• preexisting tics