Levofloxacin (Page 2 of 16)

1.13 Inhalational Anthrax (Post-Exposure)

Levofloxacin tablets are indicated for inhalational anthrax (post-exposure) to reduce the incidence or progression of disease following exposure to aerosolized Bacillus anthracis. The effectiveness of levofloxacin is based on plasma concentrations achieved in humans, a surrogate endpoint reasonably likely to predict clinical benefit. Levofloxacin tablets have not been tested in humans for the post-exposure prevention of inhalation anthrax. The safety of levofloxacin in adults for durations of therapy beyond 28 days or in pediatric patients for durations of therapy beyond 14 days has not been studied. Prolonged levofloxacin tablet therapy should only be used when the benefit outweighs the risk [see Dosage and Administration (2.1, 2.2) and Clinical Studies (14.9)].

2 DOSAGE AND ADMINISTRATION

2.1 Dosage in Adult Patients with Normal Renal Function

The usual dose of levofloxacin tablets is 250 mg, 500 mg or 750 mg administered orally every 24 hours, as indicated by infection and described in Table 1.

These recommendations apply to patients with creatinine clearance ≥ 50 mL/min. For patients with creatinine clearance < 50 mL/min, adjustments to the dosing regimen are required [see Dosage and Administration (2.3)].

Table 1: Dosage in Adult Patients with Normal Renal Function (creatinine clearance ≥ 50 mL/min)
*
Due to the designated pathogens [see Indications and Usage (1)].
Sequential therapy (intravenous to oral) may be instituted at the discretion of the physician.
Due to methicillin-susceptible Staphylococcus aureus, Streptococcus pneumoniae (including multi-drug-resistant strains [MDRSP]), Haemophilus influenzae, Haemophilus parainfluenzae, Klebsiella pneumoniae, Moraxella catarrhalis, Chlamydophila pneumoniae, Legionella pneumophila or Mycoplasma pneumoniae [see Indications and Usage (1.2)].
§
Due to Streptococcus pneumoniae (excluding multi-drug-resistant strains [MDRSP]), Haemophilus influenzae, Haemophilus parainfluenzae, Mycoplasma pneumoniae or Chlamydophila pneumoniae [see Indications and Usage (1.3)].
This regimen is indicated for cUTI due to Escherichia coli, Klebsiella pneumoniae , Proteus mirabilis and AP due to E. coli , including cases with concurrent bacteremia.
#
This regimen is indicated for cUTI due to Enterococcus faecalis, Enterococcus cloacae, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa and for AP due to E. coli.
Þ
Drug administration should begin as soon as possible after suspected or confirmed exposure to aerosolized B. anthracis. This indication is based on a surrogate endpoint. Levofloxacin plasma concentrations achieved in humans are reasonably likely to predict clinical benefit [see Clinical Studies (14.9)].
ß
The safety of levofloxacin in adults for durations of therapy beyond 28 days or in pediatric patients for durations beyond 14 days has not been studied. An increased incidence of musculoskeletal adverse events compared to controls has been observed in pediatric patients [see Warnings and Precautions (5.10), Use in Specific Populations (8.4) and Clinical Studies (14.9)]. Prolonged levofloxacin therapy should only be used when the benefit outweighs the risk.
Type of Infection * Dosed Every 24 hours Duration (days)
Nosocomial Pneumonia 750 mg 7 to 14
Community Acquired Pneumonia 500 mg 7 to 14
Community Acquired Pneumonia § 750 mg 5
Acute Bacterial Sinusitis 750 mg 5
500 mg 10 to 14
Acute Bacterial Exacerbation of Chronic Bronchitis 500 mg 7
Complicated Skin and Skin Structure Infections (SSSI) 750 mg 7 to 14
Uncomplicated SSSI 500 mg 7 to 10
Chronic Bacterial Prostatitis 500 mg 28
Complicated Urinary Tract Infection (cUTI) or Acute Pyelonephritis (AP) 750 mg 5
Complicated Urinary Tract Infection (cUTI) or Acute Pyelonephritis (AP)# 250 mg 10
Uncomplicated Urinary Tract Infection 250 mg 3
Inhalational Anthrax (Post-Exposure), adult and pediatric patients > 50 kg and ≥ 6 months of age ÞßPediatric patients < 50 kg and ≥ 6 months of age Þß 500 mgsee Table 2 below (2.2)

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