Motor tics due to atomoxetine use: a case report

Motor tics due to atomoxetine use: a case report The comorbidity ratio of attention deficit and hyperactivity disorder (ADHD) and tic disorders (TD) or Tourette's syndrome (TS) is very high. It is also known that, psychostimulant use in the treatment of ADHD can increase existing tics or cause new tics. Therefore, a selective noradrenaline reuptake inhibitor, atomoxetine, which is effective in the treatment of tics and ADHD symptoms, was introduced into clinical practice as a treatment choice in patients with ADHD and TD/TS comorbidity. However, recently there have been reports about reverse effects of atomoxetine on tics. In this report, we discuss a clinical case that had an increase in existing tic severity and developed new tics during atomoxetine treatment.