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Levofloxacin N-oxide is an inactive metabolite of the antibiotic levofloxacin . Levofloxacin N-oxide is also a degradation product of levofloxacin that is formed through exposure to daylight or hydrogen peroxide.

Levofloxacin N-oxide is an impurity of Ofloxacin (O245750), which is a fluorinated quinolone antibacterial.

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