In 2011, more than 22.5 million people in the U.S. over the age of 12 were illicit drug users (8.7% of the total population), with 8400 initiates per day.1 These drugs of abuse include substances for recreational and performance-enhancing use and cover a wide range of compound classes, including hallucinogens, marijuana, cocaine, heroin, prescription drugs such as pain relievers and tranquilizers,