Apr 02, 2019 · SIDE EFFECTS Clinical Trials Experience. STRATTERA was administered to 5382 children or adolescent patients with ADHD and 1007 adults with ADHD in clinical studies. During the ADHD clinical trials, 1625 children and adolescent patients were treated for longer than 1 year and 2529 children and adolescent patients were treated for over 6 months. Strattera received an overall rating of 5 out of 10 stars from 351 reviews. See what others have said about Strattera, including the effectiveness, ease of use and side effects.2.5/5(351).