Figures & data
Table 1. The seven categories of the Drugs Wheel model, with a summary overview of reported effects, harms, and receptor activity (Abdulrahim & Bowden-Jones, 2015; Basavarajappa & Subbanna, Citation2019; Coulon & Gorji, Citation2016; Stolerman, Citation2010; Julien et al., Citation2011).
Figure 2. A more recent version of the Drugs Wheel (12 October 2021) with established drugs in the outer ring, and NPS in the inner ring.
![Figure 2. A more recent version of the Drugs Wheel (12 October 2021) with established drugs in the outer ring, and NPS in the inner ring.](/cms/asset/287fd9b3-1770-412f-9bf5-72649d1288cf/idep_a_2013774_f0002_c.jpg)
Figure 3. The Effects Wheel: drug effects and risks, allowing for harm reduction information to be given by category.
![Figure 3. The Effects Wheel: drug effects and risks, allowing for harm reduction information to be given by category.](/cms/asset/4dc84cad-f7df-4090-b67b-6e75c7cc6858/idep_a_2013774_f0003_b.jpg)
Figure 4. The Drugs Wheel on display outside The Loop's drug checking service at Boomtown Fair festival, UK, 2017.
![Figure 4. The Drugs Wheel on display outside The Loop's drug checking service at Boomtown Fair festival, UK, 2017.](/cms/asset/bc4fe127-6bd2-44d2-acc9-879423710a60/idep_a_2013774_f0004_c.jpg)
Figure 6. The Drugs World Venn diagram: reprinted from www.InformationIsBeautiful.net with kind permission.
![Figure 6. The Drugs World Venn diagram: reprinted from www.InformationIsBeautiful.net with kind permission.](/cms/asset/7283269d-0f97-43ad-9825-4a636bc20422/idep_a_2013774_f0006_c.jpg)