a single oral dose of tyrosine ( 100 or 150 mg/kg ) caused significant increases in urinary levels of norepinephrine ( ne ) , epinephrine ( e ) , dopamine ( da ) , 3-methoxy-4-hydroxyphenylglycol ( mhpg ) , vanilmandelic acid ( vma ) , and homovanillic acid ( hva ) during the first 2 hr after its ingestion ;
C0028351
norepinephrine
C0014563
epinephrine