Table 3

Curve fits for Hill equations

Receptor	Antagonist	Max Response	n	EC₅₀	Figure
				μM
α3β4	None	1^3-a	2.1 ± 0.6	68 ± 12	2C & 4C
	10 μM QX-314	0.59 ± 0.02	1.6 ± 0.3	98 ± 12	2
	10 μM tetracaine	0.59 ± 0.03	1.1 ± 0.2	82 ± 15	4
α3β4_{(6′F10′T)}	None	1^3-a	0.8 ± 0.1	72 ± 17	2D, 4D, & 5C
	10 μM QX-314	0.79 ± 0.08	0.8 ± 0.1	183 ± 56	2D
	10 μM tetracaine	1.0 ± 0.2	0.9 ± 0.2	240 ± 62	4D
	100 μM tetracaine	0.64 ± 0.05	0.9 ± 0.14	500 ± 136	5C

↵3-a By definition.