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The single dose toxicity of Injinhotang, a herbal drug for treatment of hepatic injuries. was evaluated in Sprague-Dawley rats. Injinhotang was once administered to both sexes of rats at the dose levels of 2000, 1000, 500, 250 and 125 mg/kg for oral route. After single administration, clinical signs were observed every day for 14 days and body weights were measured 5 times including initial measurement on day 0 (the days of administration). When observation period was over, the animals were sacrificed and macroscopic examination of major organs was conducted. In addition, the histopathological profiles of these major organs were also conducted. Neither significant clinical signs nor death after administration was observed during the observation periods except for soft feces or diarrhea. In addition, no abnormal necropsy findings, changes of body weight and histopathological profiles were observed at terminal necropsy in both sexes. From these results, it is considered that $LD_{50}$ 수식 이미지 of Injinhotang is over 2000 mg/kg in oral administration in both sexes of rats
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