Plos|one: Unique Behavioral and Neurochemical Effects Induced by Repeated Adolescent Consumption of Caffeine-Mixed Alcohol [Vodka/Red Bull] in C57BL/6 Mice.

Repeated adolescent exposure to caffeine-mixed alcohol exposure induced significant locomotor sensitization, desensitized cocaine conditioned place preference, decreased cocaine locomotor cross-sensitivity, and increased natural reward consumption.

Addicting because to get the same hit, you need to increase the dose each time. Happy to say I've never had a Red Bull. I prefer to get high on life. The easy road is the least rewarding.