either beta 2-blockade , which abolished the hypotensive effect of isoprenaline or ganglionic blockade , which abolished the isoprenaline-induced activation of sino aortic baroreflexes , strongly reduced ( -67 +/- 8 % ) the isoprenaline-induced tachycardia but did not markedly alter the increase in contractility .
C0022245
isoprenaline
C0039231
tachycardia