amplification of endogenous cholinergic activity-produced by the intravenous injection of edrophonium , an acetylcholinesterase inhibitor which does not enter the central nervous system , into normal subjects-resulted in significant and briefly sustained increments in the plasma concentrations of norepinephrine ( 153+/-15-234+/-29 pg/ml , p < 0.01 ) and epinephrine ( 16+/-3-34+/-5 pg/ml , p < 0.01 ) measured with a single-isotope derivative method .
C0028351
norepinephrine
C0014563
epinephrine