yes i have them with me, i have brougth them becuz my exams r up n cant wake up late.
have anybody tried them ?
i used quater tablet only once on the eve of the paper.
still confused to use it or not ?
I stick with coffee 
the only thing is I need to drink alot of it before it starts working
but your late if your taking such measures 
if u started studying earlier for your exams, you maybe didnt need pills 
i still have one month to go
Hmm is that caffiene pills??
I used them a couple times: first time, I got soo jittery that it would not be worth staying up, if you are going to be so jittery. Atleast i couldnt study like that.
Second time, I was sooo tired that I fell asleep right after taking them :D
I would try to avoid them and stick with coffee or soda or tea as Pra said :)