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Liver and kidney role in detoxification and drug metabolism increases the risk of their poisonous injury. Topiramate (TMP) is an effective popular migraine prophylaxis that is accepted for utilize in adults and teenagers. Therefore, the target of this research is to estimate the potential toxic effects of TMP on liver and kidney in male mice. Thirty-two adult albino male mice were divided into four groups ( n  = 8 mice). Group I of animals was given saline solution and used as negative control. The other three groups were administrated TPM at doses (100, 200 and 400 mg/kg) for 28 days. Genotoxicity was evaluated by comet assay and DNA fragmentation by Diphenyleamine. Biochemical investigation was achieved by estimating liver enzymes (AST, ALT), alkaline phosphatase (ALP) creatinine and uric acid. In addition, measurement of the antioxidant enzymes, malondialdehyde and nitric oxide were performed in both two tissues of liver and kidney. Microscopic examination of hematoxyline and eosin (H&amp;E), tumor necrosis factor (TNF-α) and caspase3 stained sections were done to explore the effect of topiramate on mice tissues of liver and kidney. The data revealed that TPM showed dose dependent toxicity that represented in: DNA damage in tested cells and increased level of liver enzymes, creatinine and uric acid as markers of toxicity. Topiramate significantly diminished antioxidant enzymes activities and elevated the level of malondialdehyde and nitric oxide. In addition, TPM caused histopathological alterations and dose dependent positive immune reaction for TNF--α and caspase 3 in kidney and liver tissues. The results showed that Topiramate has marked toxicity in liver and kidney of mice.

Genotoxic, biochemical and histopathological studies to assessment the topiramate hepatorenal toxicity in mice