Table 1.

In vitro competitive binding assays.^a

Compound	Affinity (Ki, nM)
	DAT	SERT	NET
β‐CIT	27 ± 2	3 ± 0.2	80 ± 28
PE2I	17 ± 7	500 ± 30	> 1000

^aData from Emond et al. 1997; results are expressed as means ± SEM; n= 3 independent experiment for each value.