Cannabis products are rapidly changing. The THC level or ‘strength’ of cannabis flower has increased, particularly in North American markets. Cannabis products have also diversified towards more ‘processed’ forms, including vaping liquids, oral liquids, edibles and beverages, and a wider range of solid concentrates. At the same time, the use of non-THC ‘CBD’ products has increased, particularly among consumers using cannabis products for therapeutic reasons.
Our research is examining changes in product forms and patterns of use, including potential implications for problematic cannabis use. Our work is also helping to develop the methods for assessing different product forms in population-based surveys and self-reported measures.
Recent papers on cannabis products
Cannabidiol-only product use in Pregnancy in the United States and Canada: Findings from the International Cannabis Policy Study.
Bhatia D, Sakai J, Reddy S, Mikulich S, Hammond D. Obstetrics & Gynecology 2024; 144(2):156-159.
Adverse outcomes of cannabis use in Canada, before and after legalization of non-medical cannabis: cross-sectional analysis of the international cannabis policy study.
Marquette A, Iraniparast M, Hammond D. British Medical Journal Open 2024; 14(1):e077908.
Use of flavored cannabis vaping products in the US, Canada, Australia, and New Zealand: Findings from the International Cannabis Policy Study Wave 4 (2021).
D’Mello K, Chan GCK, Hall W, Rychert M, Wilkins C, Hammond D. The American Journal of Drug and Alcohol Abuse 2023; 49(5): 640-651.
Self-reported THC content and associations with perceptions of feeling high among cannabis consumers.
Lineham J, Wadsworth E, Hammond D. Drug and Alcohol Review 2023; 42(5):1142-1152.
Co-use, Simultaneous Use, and Mixing of Cannabis and Tobacco: A Cross-National Comparison of Canada and the US by Cannabis Administration Type.
Chu A, Chaiton M, Kaufman P, Goodwin R, Lin J, Hindocha C, Goodman S, Hammond D. International Journal of Environmental Research and Public Health 2023;
Trends and Socio-Demographic Differences of Cannabis Vaping in the USA and Canada.
Lim CCW, Chan GCK, Wadsworth E, Stjepanović D, Chiu V, Chung JYC, Sun T, Connor J, Leung J, Gartner C, Hall W, Hammond D. International
Trends in the use of cannabis products in Canada and the USA, 2018-2020: Findings from the International Cannabis Policy Study.
Hammond D, Goodman S, Wadsworth E, Freeman TP, Kilmer B, Schauer G, Pacula RL, Hall W. International Journal of Drug Policy 2022;105:103716.
Prices and purchase sources for dried cannabis flower in the United States, 2019-2020.
Wadsworth E, Driezen P, Pacula RL, Kilmer B, Hammond D. Cannabis & Cannabinoid Research 2023; 8(5):923-932.
Home cultivation across Canadian provinces after cannabis legalization.
Wadsworth E, Cristiano N, Pacheco K, Jesseman R, Hammond D. Addictive Behaviors Reports 2022; 15: 100423.
THC labelling on cannabis products: An experimental study of approaches for labelling THC servings on cannabis.
Goodman S, Hammond D. Journal of Cannabis Research 2022; 4:17.
