Table 1

N-Hydroxylation of guanabenz to guanoxabenz in 10 different samples of human hepatic microsomes

Human Liver Samplepmol Guanoxabenz/min × nmol P450
HBI 294  ± 4
HBI 3202  ± 2
HBI 561  ± 6
HBI 621  ± 1
HBI 7192  ± 10
HBI 943  ± 8
HBI 1025  ± 2
HBI 11404  ± 27
HBI 1211  ± 3
HBI 1375  ± 7

For incubation procedure, sample work-up, and analysis seeMaterials and Methods.

  • Values are presented as the mean ± SE of a minimum of four different determinations.