Non-medical use of prescription opioids more than doubled among adults in the United States from 2001-2002 to 2012-2013, based on a study from the National Institute on Alcohol Abuse and Alcoholism (NIAAA).
Nearly 10 million Americans, or 4.1 percent of the adult population, used opioid medications in 2012-2013 a class of drugs that includes OxyContin and Vicodin, without a prescription or not as prescribed (in greater amounts, more often, or longer than prescribed) in the past year. This is up from 1.8 percent of the adult population in 2001-2002.