A 2005 report by Columbia University’s National Center on Addiction and Substance Abuse (CASA) documented the problem. “This report revealed that our nation is in the throes of a growing epidemic of controlled prescription drug abuse involving opioids like OxyContin and Vicodin, depressants like Valium and Xanax, and stimulants like Ritalin and Adderall,” Joseph A. Califano, Jr. CASA Chairman and President, told the Senate Judiciary Committee in 2007.