Figure 1. The effect of carbamazepine (CBZ) on midazolam (MDZ) metabolism by CYP3A4 in Supersomes™.
The enzyme normalized velocities (k) of A) 1′-OH midazolam (1′-OH-MDZ) and B) 4-OH midazolam (4-OH-MDZ) formation are shown in the absence (closed squares and solid lines) and presence of 240 μM CBZ (open circles and dashed lines). The ratio of 1′-OH-MDZ versus 4-OH-MDZ formation in the absence (closed squares and solid lines) and presence of 240 μM CBZ (open circles and dashed lines) are illustrated in C).