[Antidotal effect of Stenoloma chusanum(L.) Ching against arsenic and ammonium].

The antidotal effect of four extracts from Stenoloma chusanum on acute poisoning of mice caused by arsenic and ammonium chloride was observed. The result shows: extracts B and C can reduce the mortality of mice remarkably, while extract C can raise the tolerance of mice by raising their LD50 from 31.1 +/- 4.3 mg/kg to 38.2 +/- 5.9 mg/kg. In the case of the mice poisoned by ammonium chloride, the four extracts can also reduce the mortality, but make no significant difference as compared with the control group statistically (P greater than 0.05).