It's hard to make the choice to put your child on daily medicines. In this article, I discuss the medications my autistic child has been prescribed. Other ADHD Treatments. Sometimes medications that are not stimulants are used to treat ADHD. These medications come from different classes. You will need to read the pharmacy insert to learn about side effects and adverse reactions to these medications. Medical uses. Guanfacine is used alone or with stimulants to treat children and teenagers with attention deficit hyperactivity disorder. It is also used to treat high blood pressure.