after injection of maprotiline in rats ( 50 mg/kg ip ) the turnover rate of 5-ht in the brain was only marginally affected if measured by 5-ht rise and 5-hydroxyindoleacetic acid ( 5-hiaa ) decline after administration of the mao inhibitor pargyline , or by estimation of 5-hiaa increase after blocking active transport with probenecid .
C0006104
brain
C0233660
blocking