My brother has a severe problem. He has antisocial personal disorder. He was violent and antisocial since we were kids. He had some very strange ideas. We lived apart. Our parents had a divorce when he was 5 years old. I had 7 years. He was living with father. Our father had drinking problems. I suspect that my brother was abused. Is there any kind of therapy that could help him? Some drugs perhaps?
Medications are used only in some cases. If he was abused then drugs like fluoxetine, sertraline or serotonin reuptake inhibitors can help him. But it can treat just side-effects not the disorder itself. The best way is family or group psychotherapy during which they learn how to change destructive patterns or behavior. They must be encouraged to learn new socially acceptable and productive ways of thinking.