epinephrine and norepinephrine urinary excretion was evaluated in 35 healthy confectioner workers on piece-wage ( pw ) and in 35 metal workers on the assembly-line ( al ) before and after oral administration of oral oxprenolol ( and identical placebo on double blind conditions ) in order to evaluate the effect of beta-blockade on the adrenosympathetic overactivity due to psychological working stress .
C0014563
epinephrine
C0028351
norepinephrine