Rockstar fruit punch?

Question

i was feeling a lil drowsy this morning nd i hadn't had an energy drink for a while so i went to 7-11 picked up 2 Rockstars for 4 bux, pretty good deal... i got regular and the fruit punch flavor.... i drank the fruit punch one at around 11 am and right now i am regretting drinking it because i m not sleepy enough... how long does it take to leave the system? i found out later too that the fruit punch flavor has a **** load of caffeine in it

Answer 1

Caffeine effects everyone differently.