Figure 6From: Auto-induction of phase I and phase II metabolism of artemisinin in healthy Chinese subjects after oral administration of a new artemisinin-piperaquine fixed combination Individual values for AUC ratio of phase II metabolites (M4 and M5) to their respective hydroxylated metabolites (M1, M2) of artemisinin (QHS) in healthy Chinese (n = 14 each) following one-day or two-day oral doses of QHS (1.8 mg/kg). Back to article page