Does not inhibit voltage-gated potassium channels rKv1.1/KCNA1, rKv1.2/KCNA2, rKv1.3/KCNA3, rKv1.4/KCNA4, rKv1.5/KCNA5 rKv1.6/KCNA6, Shaker IR (with inactivation domain removed), rKv2.1/KCNB1, hKv3.1/KCNC1, rKv4.3/KCND3 and hERG.