KSK68 is a high-affinity dual sigma-1 and histamine H3 receptor antagonist, with K i s of 7.7, 3.6, 22.4 nM for H3 receptor, sigma-1, sigma-2 receptor respectively. KSK68 has negligible affinity at the other histamine receptor subtypes. KSK68 can be used for research of nociceptive and neuropathic pain.