I use "Blue Ox" itis a compedetor to Red Bull, but it seems to havemore ingredients in it, as well as tastes much better. It also comes in about 4 different flavors.
Unless you're an individual who gets a MAJOR jolt from caffeine, Ephedrine is the way to go now since ephedra went bye-bye. all these energy drinks that now consist of a caffeine base thanks to Uncle Sam aren't gonna cut it like the energy drinks/pills of old.