Maximizing Pharmacodynamics with High-Dose Levofloxacin
Abstract
Objective To review published literature of levofloxacin 750 mg for the treatment of community-acquired pneumonia (CAP), nosocomial-acquired pneumonia (NAP), and skin and skin-structure infections (SSSI) focusing on microbiology, pharmacokinetic, and pharmacodynamic parameters. Data Sources MEDLINE was searched for clinical trials and review articles (1966 to September 2004). Also included were data from the manufacturer. Search terms utilized were levofloxacin, pneumonia, skin infections, adverse effects, pharmacokinetics, pharmacodynamics, and resistance. Study Selection and Data Extraction All articles and product labeling regarding levofloxacin for the treatment of CAP, NAP, and SSSI were included for review. Data Synthesis Compared with the other currently marketed fluoroquinolones, levofloxacin demonstrates similar in vitro activity to a number of commonly identified microorganisms. Levofloxacin 750 mg has shown equivalency to various non-fluoroquinolone regimens for the treatment of NAP and SSSI. Furthermore, a short, 5-day course of levofloxacin 750 mg was similar in efficacy to a longer, 10-day course of levofloxacin 500 mg for the treatment of CAP. Adverse events associated with levofloxacin therapy are dose independent; therefore, the adverse effects seen with high-dose levofloxacin are comparable to lower doses. Conclusions The levofloxacin 750 mg dosage formulation is a logical option when evaluating the antimicrobial armamentarium commonly utilized for the…
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