Objective:To observe the possible influence of YUEHUA capsule(YHC) on T Lymphocyte subgroup and TH1/TH2 cytokines in rats with Multi-drug resistant tuberculosis (MDR-TB) and its mechanism for this effeci. Methods:The experimental rats,as the studying model, were Divided into the modeling group, YHC group, the drug of antituberculosis (OEZD) group and YHC & OEZD group in random process. And there was normal group. Then CD4^+ , CD8^+ , CD4 ^+/CD8^+ , IFN-γ, IL-2, IL-10, and TNF-α were observed in the all group. Result:Compared wit...