unlabelled ici 118,551 , ( - ) -bupranolol , ( + ) -bupranolol , ( - ) -adrenaline , ( - ) -noradrenaline and ( +/- ) -fenoterol competed with 3h-ici for lung beta 2-adrenoceptors with pkl-values of 9.0 , 9.4 , 8.1 , 5.9 , 4.9 and 6.4 , respectively .
C0014563
adrenaline
C0028351
noradrenaline