Marijuana Law, Policy & Reform

Editor: Douglas A. Berman
Moritz College of Law

Friday, September 3, 2021

"Lower-Risk Cannabis Use Guidelines for reducing health harms from non-medical cannabis use: A comprehensive evidence and recommendations update"

The title of this post is the title of this new article by multiple authored appearing in the International Journal of Drug Policy. Here is its abstract:

Background

Cannabis use is common, especially among young people, and is associated with risks for various health harms.  Some jurisdictions have recently moved to legalization/regulation pursuing public health goals.  Evidence-based ‘Lower Risk Cannabis Use Guidelines’ (LRCUG) and recommendations were previously developed to reduce modifiable risk factors of cannabis-related adverse health outcomes; related evidence has evolved substantially since.  We aimed to review new scientific evidence and to develop comprehensively up-to-date LRCUG, including their recommendations, on this evidence basis.

Methods

Targeted searches for literature (since 2016) on main risk factors for cannabis-related adverse health outcomes modifiable by the user-individual were conducted.  Topical areas were informed by previous LRCUG content and expanded upon current evidence. Searches preferentially focused on systematic reviews, supplemented by key individual studies.  The review results were evidence-graded, topically organized and narratively summarized; recommendations were developed through an iterative scientific expert consensus development process.

Results

A substantial body of modifiable risk factors for cannabis use-related health harms were identified with varying evidence quality.  Twelve substantive recommendation clusters and three precautionary statements were developed.  In general, current evidence suggests that individuals can substantially reduce their risk for adverse health outcomes if they delay the onset of cannabis use until after adolescence, avoid the use of high-potency (THC) cannabis products and high-frequency/-intensity of use, and refrain from smoking-routes for administration.  While young people are particularly vulnerable to cannabis-related harms, other sub-groups (e.g., pregnant women, drivers, older adults, those with co-morbidities) are advised to exercise particular caution with use-related risks.  Legal/regulated cannabis products should be used where possible.

Conclusions

Cannabis use can result in adverse health outcomes, mostly among sub-groups with higher-risk use.  Reducing the risk factors identified can help to reduce health harms from use.  The LRCUG offer one targeted intervention component within a comprehensive public health approach for cannabis use.  They require effective audience-tailoring and dissemination, regular updating as new evidence become available, and should be evaluated for their impact.

https://lawprofessors.typepad.com/marijuana_law/2021/09/lower-risk-cannabis-use-guidelines-lrcug-for-reducing-health-harms-from-non-medical-cannabis-use-a-c.html

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