New guidelines for the disposal of unused or expired medications call on patients to take several precautions to avoid the diversion of these drugs and to protect water sources. The guidelines were released in February by the White House Office of National Drug Control Policy, the Department of Health and Human Services, and the Environmental Protection Agency (http://www.whitehousedrugpolicy.gov/drugfact/factsht/proper_disposal.html).
Kuehn BM. Drug Disposal. JAMA. 2007;297(12):1307. doi:10.1001/jama.297.12.1307-b