Objective To obtain the original toxic materials and evaluate the toxic grade and decide clinical safe dose, we observed the response and extension of the acute toxicity that 5 - hydroxy - 7 - benzyloxychrysin （ 7 - HBC ） induced the mouse. Methods Sixty mature healthy mice were randomly divided into 6 groups. After 7 - HBC was administered by pouring it into stomach for 14 days, a series of indexes ： symptom, sign, diet and excrement of the mice were observed. All mice were put to death at the end of experiment and abnormalities were examin...
