I have ADD so I use my adderall to focus in school and at work, but every Friday I have to work from 4 - 10. School is from 8 - 3. So when I take my adderall in the morning it has started to, if not stop fully, wear off by half way through my shift. So, I want to take two, one in the morning and one in the afternoon around 2 (to give it plenty of time to kick in again). I have already tried switching shifts but no one can switch with me. Also, I'd be doing it every week. (If the only thing I have to worry about is not sleeping until 2 that night I am perfectly ok with that because I rarely do anything on Saturdays until about 3 or so.)