it was observed that in control experiments the relative potencies of sympathomimetic agonists for inducing contractions were : adrenaline ( 1.6 ) greater than noradrenaline ( 1.0 ) greater than phenylephrine ( 0.38 ) greater than isoprenaline ( 0.009 ) .
C0014563
adrenaline
C0028351
noradrenaline