Too many issues..Please guide me.

My child is 12 years old.  He has been diagnosed with ADHD, OCD, ODD and an anxiety disorder.  He has a high IQ and is extremely gifted in math and science.  

He is currently taking three different medications (one of them a stimulant), which help him "control" himself for a while.  

I have battled the school system for years to get him appropriate education, but they just keep targetting him as a problem child.  I feel that as he gets older, more issues appear, and I believe he has a bright future.  

I have been told that having taken Brethine (for pre-term labor) during pregnancy might have an effect on what's happening to him today.  I have read several articles on the topic.

Could this explain the combination of issues he has?
Is there anything else I can do for him?

[jdtm]

ODD and OCD are both anxiety disorders.  Are you indicating that your child has a third anxiety disorder?  Often severe anxiety behaviours are misdiagnosed as ADHD.  I'm wondering - is this the correct diagnosis?  Perhaps it is time to see another mental health specialist who has experience in childhood anxiety disorders.