intra-arterial infusion of epinephrine at normal ambient calcium levels ( 0.35 mm ) for 4 h caused circulating levels of epinephrine to rise from 2.9 x 10 ( -9 ) to 8.0 x 10 ( -8 ) m but did not affect norepinephrine levels , or branchial unidirectional calcium fluxes .
C0014563
epinephrine
C0028351
norepinephrine