Figure 2.
Effects of fenobam sulfate on intravenous cocaine self-administration. Oral (p.o) administration of fenobam sulfate significantly inhibited cocaine self-administration (a) and active lever responses (b) in rats. Within-subjects design, n = 11. * p < 0.05, ** p < 0.01 compared to vehicle. It also dose-dependently shifted cocaine dose-response self-administration curve downward (c; vehicle (■), 30 mg/kg (△), 60 mg/kg (○)).Within-subjects design, n = 6. 30 mg/kg fenobam vs. vehicle: ††† p < 0.001; 60 mg/kg fenobam vs. vehicle: * p < 0.05, *** p < 0.001.