ROS 234

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].