Trends and Variations in Concurrent Dispensing of Prescription Opioids and Benzodiazepines in Australia: A Retrospective Analysis

Objective: Concurrent use of opioids and benzodiazepines may cause a range of adverse health outcomes including fatal overdose. However, little is known about levels of concurrent use and its variation across jurisdictions. This study examined the population-level prevalence of concurrent use in Australia. Methods: We analyzed a 10% sample of unit record data of prescription opioids and benzodiazepines dispensed between January 2013 and December...