Alpha-keto acids

simplest of the alpha-keto acids

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Trovafloxacin (sold as Trovan by Pfizer and Turvel by Laboratorios Almirall) is a broad spectrum antibiotic that inhibits the uncoiling of supercoiled DNA in various bacteria by blocking the activity of DNA gyrase and topoisomerase IV. It was withdrawn from the market due to the risk of hepatotoxicity. It had better Gram-positive bacterial coverage but less Gram-negative coverage than the previous fluoroquinolones.

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Tosufloxacin is a fluoroquinolone antibiotic. It has a controversial safety profile in relation to other fluoroquinolones. It is associated with severe thrombocytopenia and nephritis, and hepatotoxicity. It is sold in Japan under the brand name Ozex.

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