Many kids and teens diagnosed with ADHD take prescription stimulants, such as Adderall and Ritalin...In addition, 6 in 10 children diagnosed with ADHD have at least one other mental, emotional or behavioral disorder, such as anxiety or depression. As a result, many of them take other kinds of prescription drugs too. Meanwhile, Monster, Red Bull and other energy drinks are commonly marketed to teens as a way to boost stamina, physical performance and alertness. This is troubling because of the high levels of caffeine those drinks contain.