So I was recently diagnosed with ADD and have been taking one Adderall 10mg xr pill every morning. The problem is that I take it around 8am and then it wears off by 4pm. I'm in college and still have a lot of studying to do by 4pm! I can't see my doctor for another month or so in order to ask her about this so I figured I would give this forum a shot. Would it be ok for me to take one Adderall 10mg xr pill at 8am and then another Adderall 10mg xr around 4pm every once in a while when I have a lot of work to do in the afternoon/evening? I wouldn't do this every day, just maybe once every week or two when I have a lot of work on a particular day. Let me know your thoughts!