Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder manifested by inattention and/or hyperactivity and impulsivity. It is a disorder that begins in childhood but can persist into adulthood. It is associated with the emergence of various comorbidities, including, very often, the development of substance use disorders (SUD). When present simultaneously, they contribute to more severe presentations of both conditions and makes treatment more complex and challenging….