vagal stimulation reversibly raised the norepinephrine dose that produced ventricular fibrillation from 16.4 +/- 2.4 to 30.0 +/- 3.8 micrograms ( p less than 0.001 , n = 10 ) , and the epinephrine dose from 15.5 +/- 2.0 to 22.5 +/- 2.6 micrograms ( p less than 0.001 , n = 5 ) .
C0028351
norepinephrine
C0014563
epinephrine