Potent and selective bradykinin B1 receptor antagonist (ID50 values are 2.8 and > 600 nM at B1 and B2 receptors respectively). Exhibits no intrinsic agonist activity and is resistant to aminopeptidase and kininase II (ACE) cleavage. Displays hypertensive activity in vivo.

(Ala6,D-Trp8,L-alaninol15)-Galanin (1-15)

Rehmannioside B 是苦瓜甙 B 的去酰衍生物，可从 Picrorhiza kurroa Royle ex Benth 根茎(车前草科)的甲醇提取物中分离出来。