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Levofloxacin is a fluoroquinolone antibacterial indicated in adults (18 years of age and older) with infections caused by designated, susceptible bacteria and in pediatric patients where indicated ( 1 , 12.4 ). • Pneumonia: Nosocomial ( 1.1 ) and Community Acquired ( 1.2 , 1.3 ) • Skin and Skin Structure Infections (SSSI): Complicated ( 1.4 ) and Uncomplicated ( 1.5 ) • Chronic bacterial prostatitis ( 1.6 ) • Inhalational Anthrax, Post-Exposure in adult and pediatric patients ( 1.7 ) • Plague in adult and pediatric patients ( 1.8 ) • Urinary Tract Infections (UTI): Complicated ( 1.9 , 1.10 ) and Uncomplicated ( 1.12 ) • Acute Pyelonephritis ( 1.11 ) • Acute Bacterial Exacerbation of Chronic Bronchitis ( 1.13 ) • Acute Bacterial Sinusitis ( 1.14 ) Usage To reduce the development of drug-resistant bacteria and maintain the effectiveness of levofloxacin and other antibacterial drugs, levofloxacin should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria ( 1.15 ). 1.1 Nosocomial Pneumonia Levofloxacin tablets are indicated in adult patients for the treatment of nosocomial pneumonia due to methicillin-susceptible Staphylococcus aureus, Pseudomonas aeruginosa, Serratia marcescens, Escherichia coli, Klebsiella pneumoniae, Haemophilus influenzae, or Streptococcus pneumoniae. Adjunctive therapy should be used as clinically indicated. Where Pseudomonas aeruginosa is a documented or presumptive pathogen, combination therapy with …

Levofloxacin tablets are contraindicated in persons with known hypersensitivity to levofloxacin, or other quinolone antibacterials [see Warnings and Precautions ( 5.3 )]. Known hypersensitivity to levofloxacin or other quinolones ( 4 , 5.7 )

Anaphylactic reactions and allergic skin reactions, serious, occasionally fatal, may occur after first dose ( 4 , 5.7 ) Hematologic (including agranulocytosis, thrombocytopenia), and renal toxicities may occur after multiple doses ( 5.6 ) Hepatotoxicity: Severe, and sometimes fatal, hepatotoxicity has been reported. Discontinue immediately if signs and symptoms of hepatitis occur (5.8) Clostridium difficile -associated colitis: evaluate if diarrhea occurs ( 5.10 ) Prolongation of the QT interval and isolated cases of torsade de pointes have been reported. Avoid use in patients with known prolongation, those with hypokalemia, and with other drugs that prolong the QT interval ( 5.11 , 8.5 ) 5.1 Disabling and Potentially Irreversible Serious Adverse Reactions Including Tendinitis and Tendon Rupture, Peripheral Neuropathy, and Central Nervous System Effects Fluoroquinolones, including levofloxacin, have been associated with disabling and potentially irreversible serious adverse reactions from different body systems that can occur together in the same patient. Commonly seen adverse reactions include tendinitis, tendon rupture, arthralgia, myalgia, peripheral neuropathy, and central nervous system effects (hallucinations, anxiety, depression, insomnia, severe headaches, and confusion). These reactions can occur within hours to weeks after starting levofloxacin. Patients of any age or without pre-existing risk factors have experienced these adverse reactions [see Warnings and …

8.1 Pregnancy Risk Summary Published information from case reports, case control studies and observational studies on levofloxacin administered during pregnancy have not identified any drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes. In animal reproduction studies, oral administration of levofloxacin to pregnant rats and rabbits during organogenesis at doses up to 9.4 times and 1.1 times the maximum recommended human dose (MRHD), respectively, did not result in teratogenicity. Fetal toxicity was seen in the rat study, but was absent at doses up to 1.2 times the maximum recommended human dose (see Data). The estimated background risk of major …