adrenaline , noradrenaline and phenylephrine were directly acting agonists , their ed50 values being 7.1 x 10 ( -6 ) m , 1.5 x 10 ( -5 ) m and 2.7 x 10 ( -5 ) m , respectively.3 .
C0014563
adrenaline
C0028351
noradrenaline