Patterns of storage, use, and disposal of opioids among cancer patients presenting to the emergency center.

184 Background: Approximately 75% of prescription opioid abusers obtain the drug from an acquaintance. Improper opioid storage, use, and disposal along with lack of patient education may lead to increased availability of the drug for abuse by others. Our aim was to determine the opioid storage, use, and disposal patterns in patients presenting to the emergency center (EC) of a comprehensive cancer center. Methods: We surveyed 113 cancer patients receiving opioids for at least 2 months and collected information regarding opioid use, storage, and disposal. Unsafe storage was defined as storing the opioids in plain sight and sharing or losing their opioids was defined as unsafe use. Results: The median age was 53 years, 55% were female, and 64% were white and 86% had advanced cancer. 19% of the patients had history of illicit drug use and 24% reported that drug abuse is prevalent in their neighborhood. 59% obtained the opioid from their oncologist and 6% believed they were prescribed more medication than req...