Alright it is 9:30am here in lovely NY. I have an estate law test at 5:45pm that I need to study for. After the test (around 7:30) I need to study for a biology test that is at 11:00 tomorrow afternoon. If I take 15mg of adderall XR at 4:00pm today, will it last me till at least 9:30-10:00pm? Will I be able to sleep tonight?

Edit: I should actually take it around like 2:00pm right? I'm opening a 30mg adderall and taking half the beads

If you take it at 2 you'll probably be crashing by 10 and no, you probably wont get much sleep unless you take something else to knock you out.

11 in the afternoon? :p

only 15mgs? you might not even feel it dude..

go with 30-40, or 60 if you wanna have a little fun getting shit done.

Alright it is 9:30am here in lovely NY.

Lovely, its fucking freezing balls here :o

And yea, as vilbe said 15mg is not a large dose at all, just about therapeutic. Any potential problems that you may encounter while trying to sleep can easily be solved by a small dose of valium or xanax. 15mg is weak though, you shouldnt have a problem