TABLE 1

Dual inhibition of capravirine (CPV) metabolism in human liver microsomal incubations


Inhibitor (P450)

Metabolite Formation
CPV
C19
C20
C23
C26
%
Ritonavir (3A4) 97.51 0.18 0.58 0.41 1.33
Ritonavir (3A4) + Quercetin (2C8) 99.24 0.05 0.19 0.21 0.31
Ritonavir (3A4) + Sulfaphenazole (2C9) 97.18 0.15 0.34 0.61 1.72
Ritonavir (3A4) + Ticlopidine (2C19)
96.78
0.08
0.73
0.44
1.97