comparison of time-courses indicated that the rise in chronoamperometric responses correlated with elevations in striatal 3,4-dihydroxyphenylacetic acid ( dopac ) and homovanillic acid ( hva ) levels rather than with those of dopa or da , suggesting that da metabolites contribute significantly to the increases in chronoamperometric responses observed after administration of l-dopa .
C0013023
dopa
C0023570
l-dopa