Legal and Illegal Sources of Cannabis in Germany Shortly After Legalisation

Abstract The aim of this study is to examine cannabis sources shortly after the legalisation of recreational cannabis possession and cultivation and liberalisation of medical cannabis prescription in Germany in 2024. In a cross-sectional survey, past 12-month cannabis sourcing was captured using a multiple-choice item with eleven responses. Latent class analyses (LCA) grouped people according to their sourcing behaviour. A subsequent multinomial regression model examined variations in class membership concerning sociodemographic, cannabis-related, and health variables. Among n = 1478 past-year cannabis users, 50.7% obtained some or all of their cannabis from legal sources. A majority reported a mix of legal and illegal sources (28.6%), predominantly social sources (20.5%) or predominantly illegal sources (15.0%). A minority of users obtained cannabis mostly from home-cultivation (13.5%) or pharmacies (12.3%), while some did not obtain but only co-used cannabis that someone else obtained (10.2%). Shortly after the cannabis reform, demand was mostly met by illegal sources.

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Publication Details

Journal
International Journal of Mental Health and Addiction
Published
2025-11-05
DOI
https://doi.org/10.1007/s11469-025-01574-3
Citations
1
Primary Topic
Cannabis and Cannabinoid Research
Type
article
Field-Weighted Citation Impact
1.39
Controls
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article

Legal and Illegal Sources of Cannabis in Germany Shortly After Legalisation

Jakob Manthey, Uwe Verthein, Daniel Kotz, Moritz Rosenkranz et al.
1 citations
International Journal of Mental Health and Addiction
Cannabis and Cannabinoid Research
1.39
article

Legal and Illegal Sources of Cannabis in Germany Shortly After Legalisation

Jakob Manthey, Uwe Verthein, Daniel Kotz, Moritz Rosenkranz, Anna Schranz, Stephanie Klosterhalfen
article en
1 citations

Abstract

Abstract The aim of this study is to examine cannabis sources shortly after the legalisation of recreational cannabis possession and cultivation and liberalisation of medical cannabis prescription in Germany in 2024. In a cross-sectional survey, past 12-month cannabis sourcing was captured using a multiple-choice item with eleven responses. Latent class analyses (LCA) grouped people according to their sourcing behaviour. A subsequent multinomial regression model examined variations in class membership concerning sociodemographic, cannabis-related, and health variables. Among n = 1478 past-year cannabis users, 50.7% obtained some or all of their cannabis from legal sources. A majority reported a mix of legal and illegal sources (28.6%), predominantly social sources (20.5%) or predominantly illegal sources (15.0%). A minority of users obtained cannabis mostly from home-cultivation (13.5%) or pharmacies (12.3%), while some did not obtain but only co-used cannabis that someone else obtained (10.2%). Shortly after the cannabis reform, demand was mostly met by illegal sources.

International Journal of Mental Health and Addiction
Universität Hamburg (DE), Düsseldorf University Hospital (DE), University Medical Center Hamburg-Eppendorf (DE), Heinrich Heine University Düsseldorf (DE), Leipzig University (DE)
Openalex Percentile: Top 15%
Cannabis and Cannabinoid Research
1.39
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Legal and Illegal Sources of Cannabis in Germany Shortly After Legalisation — Jakob Manthey, Uwe Verthein, et al. · International Journal of Mental Health and Addiction (2025) | TGRS Research Map | TGRS