Icatibant Acetate 是一种缓激肽 B2 受体拮抗剂，用于治疗遗传性血管性水肿。

Endogenous potent and highly selective bradykinin B1 receptor agonist (Ki values are 0.12 and > 30000 nM at human B1 and B2 receptors respectively). Hypotensive agent that reduces peripheral vascular resistance in vivo. 16-fold more potent than [Des-Arg9]-Bradykinin.

Bradykinin (1-5) is a major stable metabolite of Bradykinin, formed by the proteolytic action of angiotensin-converting enzyme (ACE).The bradykinin (BK) fragment (1-5) (RPPGF) is among the most stable of naturally occurring metabolites. Bradykinin (1-5) may be used as a marker for BK production in vivo.