A method of inhibiting the transport of a neurotransmitter away from a synapse comprising contacting said synapse with {TAIL ~ a compound} selected from the group consisting of {HEAD ~ compounds} having the structure: ##STR7## wherein 
A method of inhibiting the transport of a neurotransmitter away from a synapse comprising contacting said synapse with { TAIL ~ a compound } selected from the group consisting of { HEAD ~ compounds } having the structure : # # STR7 # # wherein
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH