adrenaline resembled phenylephrine more closely than it resembled isoprenaline , in that it showed more affinity for alpha-adrenoceptors , whereas noradrenaline , and the transmitter released on periarterial nerve stimulation , behaved more like isoprenaline , although both types of receptor were affected.4 .
C0014563
adrenaline
C0028351
noradrenaline