GABA uptake inhibitor that displays moderate selectivity for BGT-1 (mGAT-2) transporters (Ki values are 1.4, 15, 19 and 41 μM for hBGT-1, hGAT-3, hGAT-1 and hGAT-2 respectively). Anticonvulsive; inhibits sound-induced tonic and clonic convulsions in DBA/2 mice. Also displays affinity at α1- and D2-receptors (IC50 values are 266 and 1632 nM respectively).