Stop taking Strattera and call your health care provider right away if you get swelling or hives. Strattera is effective even if you also have anxiety, and does not induce anxiety. Because Strattera does not affect people this way. The Food and Drug Administration. Strattera does not cause insomnia like stimulant medications do. Strattera is a new nonstimulant medication that has been approved for the treatment of ADHD in children and adolescents being treated with Strattera.