TABLE 4.
Fractional metabolism (fm) estimated using the P450 and UGT kinetic models
The fm values were calculated using CLint values (see Table 3). Data shown are parameter estimates and CV% of the estimates.
| Enzyme | THC | 11-OH-THC | 11-OH-THC |
|---|---|---|---|
| Depletion | Formation | Depletion | |
| CYP2C9 | 0.91 (0.4%) | 1.00 (fixed) | 0.15 (3.6%) |
| CYP3A | 0.00 (fixed) | 0.00 (fixed) | 0.18 (3.0%) |
| CYP2D6 | 0.09 (4.4%) | 0.00 (fixed) | 0.00 (fixed) |
| UGTs | 0.00 (fixed) | 0.00 (fixed) | 0.67 (12%) |