神经激肽受体拮抗剂;Neurokinin Receptor Antagonists;;InformationRolapitant Rolapitant (SCH-619734) is a selective and competitive antagonist of human substance P/NK1 receptors with antiemetic activity. It has a high affinity for the human NK1 receptor of 0.66 nM and high selectivity over the human NK2 and NK3 subtypes of >1000-fold, as well as preferential affinity for human, guinea pig, gerbil and monkey NK1 receptors over rat, mouse and rabbit.