Fig. 2

a CB1 agonist/antagonist diagram illustrating the synthetic cannabinoid compounds used in this study. b Resazurin viability stain to indicate cytotoxicity effects of the cannabinoid treatment. C and d Quantification of cytotoxicity data shown in (b). ACEA and AM251 treatment is not toxic to the cells until high concentrations of 1 mM. Treatment with 10 μM have no adverse cytotoxicity effects