haloperidol decanoate itself was about 40 times less potent than haloperidol in inhibiting 3h-spiperone binding to rat striatum in vitro and its direct application into the cerebral ventricle of mice showed no effect on brain concentrations of dopamine metabolites , homovanillic acid ( hva ) and 3,4-dihydroxyphenylacetic acid ( dopac ) .
C0006104
brain
C0086045
concentrations