My son, who has Autism & ADHD, is becoming aggressive. Should We change medications? Behavioral therapy Neuro Cognitive Approach, Which is the best way to curb aggression necessarily fix oppositional behavior or aggression; it can reduce the ADHD symptoms and improve the conditions for working on those behaviors. We strongly recommend behavioral therapy that has parents and children working together to rein in problem behavior. Strattera is a long-acting compound, such that if your child is taking it daily and the dose is adequate, the effects usually do not wear off during the day. But it’s also not a stimulant medication, which is usually the first choice of mental health professionals treating ADHD. If your son isn’t responding well enough to Strattera, it might be appropriate to try a different medication. The most important thing is to make sure your doctor is experienced and knowledgeable about ADHD, the management of oppositional and aggressive behaviors, and the use of these medications. You may need to find another practitioner if you’re not satisfied.