OBJECTIVE To develop apopulation pharmacokinetic model of leflunomide in Chinese healthy volunteers and evaluate the effect of individual factors on the pharmacokinetics of leflunomide.METHODS A total of 21 healthy male subjects were enrolled in this study.Phoenix NLME(version8.0)software was used to assess the influence of demographic characteristics on pharmacokinetic characters of the active metabolite teriflunomide of leflunomide.RESULTS One-compartment model with first order absorption was fitted to th...