Pimozide-d4-1 is an antagonist of dopamine receptors, exhibiting Ki values of 1.4 nM, 2.5 nM, and 588 nM for dopamine D2, D3, and D1 receptors, respectively, and also shows high affinity for the alpha1-adrenoceptor with a Ki value of 39 nM, additionally, Pimozide acts as an inhibitor of STAT3 and STAT5.