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Click on icon to see table/diagram/imageInterference with Laboratory Tests: Some fluoroquinolones, including levofloxacin, may give false-positive urine screening results for opiates using commercially available immunoassay kits. Confirmation of positive opiate screen by more specific methods may be necessary.
Levofloxacin may inhibit the growth of Mycobacterium tuberculosis, and therefore, may give false-negative results in the bacteriological diagnosis of tuberculosis.
