Fig. 7From: Kinetics of cytochrome P450 enzymes for metabolism of sodium tanshinone IIA sulfonate in vitroSecondary plot of CYP3A4 activity using the slopes of the primary Lineweaver–Burk plots versus concentrations of midazolam, illustrating the effects of STS on the metabolism of midazolam 1-hydroxylation in HLMs. Each point represents the mean of triple determinationsBack to article page