Inhibition constants predicted from the best fit of models A to C

InhibitorPredicted by ModelaInhibition Constant
KiKIkinact
μMmin1
KetoconazoleC0.59 ± 0.09
FluconazoleC4.01 ± 0.62
AprepitantC11.34 ± 0.72
VoriconazoleC1.62 ± 0.13
NefazodoneB22.43 ± 7.370.05 ± 0.005
TroleandomycinB5.93 ± 1.320.07 ± 0.003
ErythromycinB25.15 ± 4.900.08 ± 0.005
ClarithromycinB37.43 ± 9.240.09 ± 0.008
DiltiazemB2.71 ± 0.730.04 ± 0.004
SaquinavirB4.67 ± 2.350.03 ± 0.005
ItraconazoleB5.14 ± 1.370.05 ± 0.001
ConivaptanB3.26 ± 1.100.03 ± 0.004
RitonavirA8.59 ± 3.750.82 ± 0.140.09 ± 0.01
RitonavirC0.06 ± 0.01
  • Three inhibition models incorporating irreversible inhibition (model B), reversible inhibition (model C), or both (model A) were used to estimate the inactivation parameters (KI and kinact) and/or reversible inhibition constant (Ki) for each inhibitor. Refer to Materials and Methods for details of the models.