Potent antagonist of the noradrenalin transporter (IC50 = 55 nM); also displays antagonist activity at the 5-HT and dopamine transporters (IC50 values are 117 nM and 910 nM respectively). Orally active. Exhibits antinociceptive and antiallodynic activity in rodent models of acute, persistent, and chronic pain. Purity 98%. MW (observed): 209.72