Fans of Four Loko alcoholic “energy drinks” are about to discover that their favored concoction, which blends the downer that is alcohol with the upper that is caffeine, is about to lose that speedy sensation, thanks to the vigilant work of the FDA. Alcoholic drinks that contain caffeine are now officially on the Food and Drug Administration’s warning list and have been banned in several states already, making them instantly more appealing to youngsters across America.