Abstract Chlorisondamine is a bisquaternary ganglion-blocking nicotinic antagonist that accumulates in dopaminergic, serotonergic, and noradrenergic cell bodies; the mechanism of uptake and time-course of retrograde transport are not known. Chlorisondamine could possibly be taken into monoaminergic neurons when blocked nicotinic receptors on those cells are internalized. In order to more easily study the mechanism of the capture and ...