We know that ADHD is a childhood brain dysfunctional disorder that causes difficulties in learning and poor partnerships due to inattention, distraction, poor self-control, and hyperactivity. Parents want to use medication to help their children, but they are worried about the adverse effects of medication, not to mention the fact that people in the community often say, “Children who take ADHD medication will become dull.” Can they really become dull? The medication for ADHD affects certain chemical components of the brain, such as dopamine and norepinephrine, so that nerve impulses are transmitted normally between nerve cells and stimulate a variety of mental activities in the center, making the mind quicker and more energetic, reducing the symptoms of irritability, emotional impulsiveness, temper tantrums and short attention span of children with ADHD, as well as reducing impulsive behavior and inner The children with ADHD have less impulsive behaviors, are more calm, can pay attention in class, and learn more efficiently. This is not a sign of “dullness” but a sign of improvement in ADHD symptoms. Most of the children feel less angry and hostile after the medication, and feel calmer than before, so they can pay more attention in class and complete class work more quickly and accurately. The common medications currently used to treat ADHD are Ritalin and Zestat, chosen for different symptoms. Their side effects are mainly, loss of appetite, nausea, headache, abdominal pain, rapid heartbeat, nervousness and agitation, and dependence in high doses over a long period of time. Although these adverse reactions do not occur in every child, they must all be taken under the supervision of a specialist.