OUP-186 is a high affinity and human/rat species-selective antagonist of histamine H3 receptor. OUP-186 suppressed the proliferation of breast cancer cells. The IC50 values at 48 hours for OUP-186 was approximately 50 μM. OUP-186 potently induced cell dea
Cipralisant is a selective histamine H3 receptor antagonist in vivo, and an agonist in vitro (pKi: 9.9 for histamine H3 receptor; Ki: 0.47 nM for rat histamine H3 receptor). It has the potential for the treatment of attention-deficit hyperactivity disorde
A-940894 is a histamine H4 receptor antagonist with anti-inflammatory properties. A-940894 potently binds to both human and rat histamine H4 receptors and exhibits considerably lower affinity for the human histamine H1, H2, or H3 receptors. A-940894 has g
ROS 234 is a highly effective H3 antagonist, demonstrating a strong binding affinity (pK B) of 9.46 for the Guinea-pig ileum H3 receptor and a pKi of 8.90 for the Rat cerebral cortex H3 receptor. Additionally, it exhibits an ex vivo ED50 of 19.12 mg/kg (ip) in the Rat cerebral cortex. It should be noted that ROS 234 demonstrates limited central access, as reported in [1] and [2].