In Vitro Assessment of Cytochrome P450 2C19 Potential of Naoxintong

Figure 1

Chromatogram of buffer solutions blank (a), chromatogram of 4′-OH-mephenytoin (7.0 min), phenacetin (12.8 min), and S-mephenytoin (19.1 min (b)), and chromatogram of incubated microsome sample (c), respectively.

(a)

(b)

(c)