a series of adrenoceptor agonists gave a relative potency series of isoprenaline greater than adrenaline greater than noradrenaline ( k1 ( 9 ) values of 1.9 x 10 ( -7 ) , 1.6 x 10 ( -6 ) and 1.9 x 10 ( -5 ) m respectively ) , consistent with activation of a beta-adrenoceptor .
C0014563
adrenaline
C0028351
noradrenaline