Im not having any problems eating while on aderal but lately it hasnt been able to keep my concentration and i havent been able to do anything productive in terms of the classroom. Before december i was on 30mg of aderal for about 3 months (dr. script of course), but during xmas break i didnt take it at all and got a new scrtip for 40 mg of aderal. I took it the first 3 days and it really seemed to have a reverse effect on me and made me lethargic as hell. I then lowered it to 20 mg but that still made me not concentrate or anything. Now im taking 20mg at 8and then 20mg around 3pm before i lift. My lifts and stuff are great but im having a huge problem studying and paying attention in class. Anyone offer me some help?