An antiemetic and antagonist of dopamine D2-, D4-, and D3 receptors (Kis = 1,365, 691, and 545 nM for α2A-, α2B-, and α2C-AR, respectively); has been mistakenly identified as an antagonist of histamine H1 receptors and M1-5 mAChRs; inhibits conditioned avoidance in the shuttle box test in dogs (ED50 = 2.77 mg/kg); inhibits apomorphine-induced emesis in dogs (ED50 = 0.69 mg/kg); induces tachycardia, increases blood levels of norepinephrine, and temporarily decreases systolic and diastolic blood pressure, which revert to baseline within one minute in normotensive dogs at 0.5-5 mg/kg