Abstract
The fluoroquinolone norfloxacin is a second generation derivative of nalidixic acid. In Brazil this drug is approved for human and animal use, the same being sold in Brazil in tablet dosage form by several laboratories, including: Norfloxacin® (Union Chemical), Flox® (Hexal) Floxacin® (Merck Sharp & Dhome) among others. Its measurement marketed for human use is 400 mg. The norfloxacin was…