Table 2

Influence of α₂-AR and D₁ receptor antagonists on induction of STFs by CPP (20.0 mg/kg s.c.)

Class	Drug	ID₅₀	95% CL	MOI	Dose
				%	mg/kg s.c.
α₂-AR antagonist	Atipamezole	0.09	0.03–0.20	91	0.63
	RX821,002	0.13	0.05–0.30	92	0.63
	Idazoxan	0.21	0.04–1.10	99	10.0
D₁antagonist	NNC756	0.02	0.01–0.03	100	0.16
	SCH23390	0.03	0.002–0.40	98	0.16
	SCH39166	0.17	0.06–0.40	88	0.63