"According to the Centers for Disease Control and Prevention (CDC) National Center for Health Statistics, unintentional overdose deaths involving prescription opioids increased 114 percent from 2001 (3,994) to 2005 (8,541), the most recent nationwide data available. Further, the number of treatment admissions for prescription opioids as the primary drug of abuse increased 74 percent from 46,115 in 2002 to 80,131 in 2006, the most recent data available, according to the SAMHSA Treatment Episode Data Set (TEDS)."


National Drug Intelligence Center, Drug Enforcement Administration, "National Prescription Drug Threat Assessment," (Washington DC, April 2009), p. III.