the ability of the vasodilator hydralazine and the alpha 1-adrenoceptor antagonist prazosin to increase sympathoadrenal outflow was compared by measuring plasma norepinephrine and epinephrine concentrations , norepinephrine clearance and norepinephrine spillover rate into plasma in conscious sprague-dawley rats and spontaneously hypertensive rats ( shr ) .
C0014563
epinephrine
C0028351
norepinephrine