Deoxypodophyllotoxin (intravenously injected; 5, 10, and 20 mg/kg; 3 times a week; 28 days) suppresses the tumors in a dose-dependent manner, the growth of tumors is inhibited by 22.19%, 47.91% and 50.93% with DPT at 5, 10 and 20 mg/kg, respectively.