This is direct from the FDA's (food and drig administration) web site about each drug
Strattera (atomoxetine)
Audience: Neuropsychiatric and other healthcare professionals
FDA notified health care professionals about a new warning for Strattera, a drug approved for attention deficit hyperactivity disorder (ADHD) in adults and children. The labeling is being updated with a bolded warning about the potential for severe liver injury following two reports (a teenager and an adult) in patients who had been treated with Strattera for several months, both of whom recovered. Health care professionals are encouraged to report any unexpected adverse events associated with Strattera to Eli Lilly or to the FDA MedWatch program.
[December 17, 2004 - Talk Paper - FDA]
[February 01, 2005 - Revised Label - FDA]
Web site for info for Adderall from the FDA:
http://www.fda.gov/cder/drug/advisory/adderall.htm
My son was diagnosed with ADHD and I talked to the Dr about alternate forms of controlling it without medication. You can also look into this. If it doesn't work out, try the meds.
PS. if you are having problems with the school district trying to label your child as a problem child (ie. ISS, alternative school, detention) or trying to put him in special ed classes you may need to req an ARD ( I can't remember what it stands for). The ARD is set up to make sure that students are not unfairly punished due to something beyond their control.
Web site with more info on ARD's:
http://www.cfisd.net/dept2/curricu/speced/ard.htm