FDA Committed to Addressing Growing National Overdose Problem The U.S. Food and Drug Administration (FDA) recognizes the five-fold increase in unintentional drug overdose deaths noted by the Centers for Disease Control and Prevention between 1990 and 2006 as a serious public health concern. Much of this increase follows from increases in the deaths from the use of opioid drugs, which in 2006 accounted for more overdose deaths than heroin and cocaine combined. The agency is also concerned about misuse of benzodiazepines (e.g., Valium and Xanax), which accounted for 272,000 emergency department visits in 2008 (compared to 367,000 for opioids).