At age four, tests showed my son's IQ was 140. When tested again in the third grade, his IQ was 120, and he is one of two students in the entire intermediate school with a reading comprehension level of 12.9+. Our problem is that he is beginning to "shut down" due to all the frustration he feels, and we are not sure how to help him overcome that. He definitely does not work up to his potential; he only works when the subject interests him, or he feels that the work is not below him. How do you help a gifted underachiever, and is there such a thing?
I understand that Adderall did not work for your son. Adderall is a form of Dexadrine and doesn't work for everyone. There are other medications for treating ADHD, as I'm sure you know, and perhaps your physician could recommend something else. I am very conservative when it comes to medication, but my thinking here is that you thought your son's ADHD was serious enough to try the medication before, so perhaps another medication (not based on Dexadrine) deserves a try. Your son's attention span, frustration level and organization skills would likely improve.
Now back to the teacher issue: Attention Deficit Disorder has been classified under the Americans with Disabilities Act as an "Other Health Impairment" (OHI). This means that if your son has an ADHD medical diagnosis (which is likely, since medication was prescribed), he can have what is called a "504 plan." This means that he's eligible to receive mandated classroom interventions to help him manage his ADHD at school so that it will not interfere with his learning. It is not necessary for your son to be receiving medication for this to occur. Copy or print out this email response and show it to your school district's psychologist and ask what you need to do for this plan to be implemented for your son. No child should be penalized because of any special learning issues.
For your reading, I would suggest the books Driven to Distraction by Hallowell and Ratey (re: ADHD) and Why Bright Kids Get Poor Grades by Dr. Sylvia Rimm (re: underachievement issues). Good luck.