Observed and predicted AUC increases for CYP3A4 DDIs, where fumic was determined for compounds by equilibrium dialysis (if found to have fumic < 0.1 by ultrafiltration). (A) Chemical inhibitors, (B) Panvera Vmax ISEF, (C) PanVera CLint ISEF, (D) Gentest Vmax ISEF. Solid line represents line of unity, and dashed lines represent ± two-fold boundaries