From what I know, the highest my doctor will go for me is, 60mg/day. I take 20mg of adderall ir 3x a day. The problem is, it's not keeping me as focused, alert, it's not keeping my anxiety down anymore. I also feel a lot more tired during the day now, than I was prior to starting this med. I've been taking adderall IR (starting on 20mg 2/day) and about every month, I would up it 10 or 20mg, now I'm up to 60mg/day, for about 7 months now.