This systematic review examines whether implementation of prescription drug monitoring programs is associated with changes in nonfatal and fatal overdoses, identifies features of programs different... Background: Prescription drug monitoring programs (PDMPs) are a key component of the president's Prescription Drug Abuse Prevention Plan to prevent opioid overdoses in the United States. Purpose: T...

Background: The lack of an agreed international minimum approach to measuring cannabis use hinders the integration of multidisciplinary evidence on the psychosocial, neurocognitive, clinical and public health consequences of cannabis use.Methods: A group of 25 international expert cannabis researchers convened to discuss a multidisciplinary framework for minimum standards to measure cannabis use globally in diverse settings.Results: The expert‐based consensus agreed upon a three‐layered hierarchical framework. Each layer—universal measures, detailed self‐report and biological measures—reflected different research priorities and minimum standards, costs and ease of implementation. Additional work is needed to develop valid and precise assessments.Conclusions: Consistent use of the proposed framework across research, public health, clinical practice and medical settings would facilitate harmonisation of international evidence on cannabis consumption, related harms and approaches to their mitigation.

In the past 2 decades, the prevalence of adult past-month cannabis use has increased¹; 33 states have legalized medical cannabis, and 11 have legalized recreational cannabis.^2,3 As cannabis use increases, driving under the influence of cannabis may also increase, potentially resulting in more traffic injuries.