This paper presents the experimental results of the inhibitory effects against tuberculous bacillus of 5 extracts of the roo ts of Euphorbia fischeriana.

• 对狼毒大戟根的水、甲醇、醋酸乙酯、氯仿、石油醚5种提取物进行了结核杆菌的体外抑菌试验。