only at the highest dose of ici 118 , 551 was there a reduction of isoprenaline-induced tachycardia , by about 40 % .5 the selective inhibition of neurally activated renin release by atenolol but not by ici , 118 , 551 is consistent with the suggestion that the beta-adrenoceptors mediating renin release resemble those in the heart more closely than those in peripheral blood vessels .
C0022245
isoprenaline
C0039231
tachycardia