des-arg10-kallidin ( ed50 = 5.0 +/- 0.9 x 10 ( -9 ) m ) was 16 times more potent than des-arg9-bradykinin ( ed50 = 8.1 +/- 0.8 x 10 ( -8 ) m ) in contracting the indomethacin-treated artery and was also blocked by [ leu8 ] des-arg9-bradykinin .
C0022474
kallidin
C0006100
bradykinin