Toxicity Observation on Tongbi Tablets / 中成药

ABSTRACT

This paper reported the acute toxicity test and the long-term toxicity test of Tongbi Tablets in rats and dogs. The LD_(50) of mice was 5.29g/kg. For dogs following oral administration (0.513g/kg/day, which was a tenth part of mice'LD_(50)) for 6 months running, the toxic symptom of strychnine-like and an increase in BUN could be-observed after 4-month administration. Both recoveried after breaking off the administration. For 0.051g/kg/day dosage group of dogs(administered for 6 months running)and all dosage groups of rats, no toxic symptom was observed, suggesting that the clinical dosage of this medicine was safe.