For what its worth, my depressed anxious son was helped alot by Adderall (less oppositional) but Prozac made him disinhibited and really didn't seem to deal with his irritability. We trialed Trileptal. It was a disaster. but works for some. I have to say, I have been really pleased with Lamictal. Minimal side effects, first time in a long time that he has gone to school without complaining. He still takes Adderall (a very low dose) which works great for him.
It is just my impression, but I think Lamictal if one has a kid towards the depressed, irritable end of the spectrum seems to have given better results than Trileptal, at least from what I can gather reading stories here.
Starting Lamictal, I would just go really low and slow. My younger son developed some kind of rash, we stopped Lamictal but then reintroduced it later on to no problem. None of the mood stabilizers have worked for him, but he has other issues (mostly impulisivity and perseveration and disregulation).
Good luck.
