dexamethasone interfered with tyramine- and isoproterenol-induced tachycardia in the neonates but did not cause alterations in development of a marker for presynaptic sympathetic nerve terminals ( synaptic vesicle uptake of [ 3h ] norepinephrine ) nor of postsynaptic beta adrenoceptor binding of [ 3h ] dihydroalprenolol ;
C0022245
isoproterenol
C0039231
tachycardia