28. Evaluation of acute and subchronic toxicity of EATWELLB in experimental animals

Nguyen Thi Thanh Loan, Tran Thanh Tung

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Abstract

The present study investigated the oral acute and subchronic toxicities of the EATWELLB solution in experimental animals. The acute toxicity was conducted using Swiss mice through oral administration, and LD50 was determined by the Litchfield-Wilcoxon method. The subchronic toxicity was studied based on the guidance of the World Health Organization using Wistar rats. EATWELLB was administered orally at 1.8 mL/kg per day and 5.4 mL/kg per day over four weeks. Regarding acute toxicity, EATWELLB did not express acute toxicity in mice at the highest dose used (75 ml/kg). Our findings showed that the maximum tolerated dose was 20.8 times higher than the expected human dose without symptoms of acute toxicity. LD50 of EATWELLB could not be determined in mice. In terms of the subchronic toxicity, EATWELLB caused no significant change in general status, haematological examination, renal and hepatic function tests; in addition, it did not cause any change in the histology of the liver and kidney of experimental rats. Based on aforementionned results, we suggest that EATWELLB at 1.8 mL/kg per day and 5.4 mL/kg per day did not cause subchronic toxicity in experimental animals.

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References

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