after administration of enprofylline , a xanthine without adenosine antagonism , forearm vascular resistance decreased by 5.6 +/- 3.4 iu , heart rate increased by 10.6 +/- 2.6 beats/min , and plasma adrenaline , plasma noradrenaline , and renin activity increased by 178 +/- 86 % , 14 +/- 8 % , and 36 +/- 13 % , respectively .
C0014563
adrenaline
C0028351
noradrenaline