Strattera^® (atomoxetine hydrochloride) is the first and only non-stimulant medication that is licensed for the treatment attention deficit hyperactivity disorder (ADHD). In previous studies, children and teenagers with ADHD who took Strattera had significant behavior improvements, compared to those children and teenagers who did not take Strattera. Studies have also shown Strattera to be effective at treating symptoms of adult ADHD. Strattera comes in a capsule form that should be taken by mouth once or twice a day. Some of the conditions you should let your healthcare provider know about before you take Strattera include bladder problems, high blood pressure, and heart problems of any kind. Among the potential side effects of Strattera are dry mouth, vomiting, and upper abdominal pain (or stomach pain).