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EC number: 217-007-1 | CAS number: 1719-58-0
Clinical signs: There were no deaths. Short lived staggering in highest dose male and female rats shortly after dosing. Apathy on the day of termination was also observed in this group. No effects on food and water consumption. Body weight gain was reduced in males and females of the 750 mg/kg bw/day group by about 10 and 14%, respectively. There were statistically significant differences in some haematology parameters in the 250 mg/kg bw/day dose group, but these were not considered toxicologically significant as there was no effect at the highest dose (no dose dependency) and individual values were all within the normal range. In males and females of the 750 mg/kg bw/day group alkaline phosphatase was significantly lower than the controls. Statistically significant reduction in glucose levels of males in the 80 and 750 mg/kg bw/day group, statistically significant reduction in urea and increased GOT in females of the 250 mg/kg bw/day group. These changes were not considered to be toxicologically significant as there was no dose-dependency and the values were all within the normal range of the historical controls. At 80 mg/kg bw/day there was a statistically significant decrease in male rat serum phosphate levels, which was not thought to be toxicologically significant as there were no changes at the two higher doses. Relative liver weights of female animals increased in a dose-dependent manner in the 250 and 750 mg/kg bw/day groups. There were statistically significant increases in adrenal weights in males of the 80 and 750 mg/kg bw/day groups, and kidney weights in females of the 80 mg/kg bw/day group. However, these effects were not considered to be toxicologically significant as there was no dose-dependency. Four of five male rats in the highest dose group had small deposits of brown pigment in the bile ducts. One of these animals also had minimal bile duct proliferation.
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