Related Experiment Video

Updated: Oct 4, 2026

Application and Methodology of the Non-destructive 19F Time-domain NMR Technique to Measure the Content in Fluorine-containing Drug Products
09:24

Application and Methodology of the Non-destructive 19F Time-domain NMR Technique to Measure the Content in Fluorine-containing Drug Products

Published on: August 22, 2017

Comparison of side effects of levofloxacin versus other fluoroquinolones

C Carbon1

  • 1Internal Medicine Unit, Bichat-Claude Bernard Hospital, Paris, France.

Chemotherapy
|September 11, 2001
PubMed

Insights

Levofloxacin exhibits a favorable safety profile compared to other fluoroquinolones, demonstrating low rates of hepatic and central nervous system adverse events. Its overall adverse drug reaction rate is among the lowest, indicating good patient tolerance.

Area of Science:

  • Pharmacology
  • Drug Safety
  • Clinical Therapeutics

Background:

  • Fluoroquinolones are widely prescribed antibiotics.
  • Concerns exist regarding the safety profiles of various fluoroquinolone agents.
  • Comparative safety data is crucial for clinical decision-making.

Purpose of the Study:

  • To compare the side-effect profile of levofloxacin with other fluoroquinolones.
  • To evaluate the safety and tolerance of levofloxacin in a large patient population.

Main Methods:

  • Analysis of European and international prescription data.
  • Comparison of adverse event rates across different fluoroquinolones.
  • Focus on hepatic, central nervous system, cardiovascular, and phototoxic effects.

Main Results:

  • Levofloxacin demonstrated a very low rate of hepatic abnormalities (1/650,000) compared to trovafloxacin.
  • Levofloxacin, ofloxacin, and moxifloxacin showed the lowest potential for central nervous system (CNS) adverse events.
  • Cardiovascular issues were rare with levofloxacin (1/15 million) versus sparfloxacin.
  • Levofloxacin's overall adverse drug reaction rate was 2%, significantly lower than other fluoroquinolones (2-10%).
  • Levofloxacin and ofloxacin have low phototoxic potential.

Conclusions:

  • Levofloxacin possesses a very good tolerance profile, superior to most other fluoroquinolones.
  • Levofloxacin is a safe option with a low incidence of serious adverse events.
  • The findings support the favorable safety and tolerability of levofloxacin in clinical practice.

More Related Videos

High Throughput, Real-time, Dual-readout Testing of Intracellular Antimicrobial Activity and Eukaryotic Cell Cytotoxicity09:09

High Throughput, Real-time, Dual-readout Testing of Intracellular Antimicrobial Activity and Eukaryotic Cell Cytotoxicity

Published on: November 16, 2016

Metabolic Profiling to Determine Bactericidal or Bacteriostatic Effects of New Natural Products using Isothermal Microcalorimetry07:28

Metabolic Profiling to Determine Bactericidal or Bacteriostatic Effects of New Natural Products using Isothermal Microcalorimetry

Published on: October 29, 2020

Related Concept Videos

Inhibitors of Bacterial DNA Synthesis01:28

Inhibitors of Bacterial DNA Synthesis

Bacterial pathogens depend on precise and efficient DNA replication to sustain infection. Two type II topoisomerases—DNA gyrase and topoisomerase IV—are critical to this process, as they resolve DNA supercoiling and unlink chromosomes during replication. Fluoroquinolones, synthetic derivatives of quinolones, exploit this mechanism by stabilizing the transient DNA–enzyme cleavage complex, preventing strand religation, and causing lethal double-strand breaks. These antibiotics are selectively...
Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence01:22

Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence

Generic intravenous (IV) drugs are considered bioequivalent to their branded counterparts due to their 100% bioavailability upon administration. However, variations in stability among different drug products can significantly influence their therapeutic performance, even if they are pharmaceutically equivalent.Cefuroxime, a prophylactic antimicrobial, is often used as a single-dose IV injection for patients undergoing coronary artery bypass grafting surgery. A 3 g dose typically provides...
Inhibitors of Viral Protein Synthesis01:30

Inhibitors of Viral Protein Synthesis

Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
Bioequivalence of Drugs: Drugs with Multiple Indications01:09

Bioequivalence of Drugs: Drugs with Multiple Indications

The concept of therapeutic equivalence (TE) in drugs with multiple indications is complex. A generic drug may be therapeutically equivalent to a brand-name product for one specific indication, but this doesn't necessarily mean it's equivalent for all other indications. Evidence of TE in one patient group and bioequivalence shown in healthy volunteers can support—but not confirm—TE for other indications. However, definitive proof requires individual clinical studies for each indication due to...
Combined Effects of Drugs: Synergism01:27

Combined Effects of Drugs: Synergism

Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...