Depends on the meds. I've only had a 'downer' (strattera) that made me feel almost comatose. It helped me focus a lot, definitely. But only by kinda 'blurring out' or 'graying out' the rest of the world that would otherwise grab my attention. I've been med-free since high school. However, I know some people who've taken meds and it's helped immensely.

Sorry I can't give a better answer! It's a question best left to your GP, I think.