A. SR144528 significantly reduced latencies to the first MJ following PTZ administration in WT mice compared to vehicle-treated controls. B. WT mice treated with SR144528 exhibit significantly reduced latencies to the first GTCS following PTZ administration compared to vehicle-treated WT mice. SR144528 treatment did not affect latencies to the first MJ or GTCS in Cnr2−/− mutants. 2-way ANOVA with Tukey’s post-hoc comparison, n=8/group. C. WT mice treated with SR144528 exhibit significantly higher average Racine scores when compared to vehicle-treated WT mice. SR144528 treatment did not affect susceptibility to 6 Hz-induced seizures in Cnr2−/− mutants. Each symbol represents one mouse. 2-way ANOVA with Tukey’s post hoc comparison, n= 8/group. *P < 0.05, ***P < 0.001. Veh, vehicle; sr, SR144528. All error bars represent mean +/− SEM.