Potent and selective prostaglandin EP2 receptor antagonist, KB = 2.4 and 34.5 nM for EP2 and DP1 receptors respectively. Displays >500-fold selectivity for EP2 over other prostanoid receptors.1 Inhibits butaprost-induced proinflammatory cytokine production, cell proliferation and invasion of PC-3 cells in vitro.2 Inhibits PGE2-induced inflammatory response and may represent a novel pharmacologic intervention for tumorigenesis resulting from inflammation.1
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