ADHD (attention-deficit/hyperactivity disorder) and intermittent explosive disorder (IED) share a common basis of impulse-control vulnerability, so they not uncommonly appear together. The prefrontal dysfunction of ADHD further weakens the ability to inhibit anger impulses. Frustration tolerance is low and emotional-regulation difficulty is severe. The treatment strategy also differs. On the medication side, ADHD medication (methylphenidate) can sometimes also reduce IED impulsivity, so a psychiatric diagnosis comes first. In Korean medicine treatment, alongside liver-qi-stagnation formulas, we combine formulas that tonify kidney qi (sin-gi) and improve concentration.