Hello,My son is 13 years old, ADHD and is on 80 mg of Strattera. In the last 2 weeks he has been extremely tired and has had a loss of appetite. I understand that the medication will make him loose some appetite, but this is extreme. He has slept anywhere from 12- over 24 hours a day. I have an appointment to see a doctor on Friday. His medication is not new. He has been on this for a year, so this is not the problem. Thank you, Melanie