INTRODUCTION: Attention deficit hyperactivity disorder (ADHD) affects 2.5% of adults in the general population, compared with more than 20% among individuals treated for addictive disorders (substance use disorders (SUD) and/or behavioural addictions (BAs)). The presence of ADHD is associated with earlier onset, greater severity and poorer prognosis of addictive disorders. In this context, pharmacological treatments, including methylphenidate (MPH), are widely recommended for adults with ADHD….
