Figure 2
From: Discriminative stimulus effects of the novel imidazoline I2 receptor ligand CR4056 in rats

Effects of phenyzoline, RS45041, idazoxan, tracizoline, 2-BFI and BU224 in rats trained to discriminate between 10 mg/kg CR4056 (i.p) and vehicle using a two-lever food-reinforced procedure.
See Figure 1 for other details.