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Liofilchem® Levofloxacin LEV Antimicrobial Susceptibility Discs, 5 µg
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Specifications:
| Application | Microbiology |
| Storage Temperature | 2-8°C |
| Product Type | Antibiotic Disc |
| Product Brand | Liofilchem |
| Product Grade | Molecular Biology |
Standardized Paper Discs for In Vitro Antimicrobial Susceptibility Testing of Levofloxacin-Responsive Bacteria
The Liofilchem® Levofloxacin (LEV) 5 µg Antimicrobial Susceptibility Discs are high-quality, standardized paper discs impregnated with 5 micrograms of levofloxacin, a broad-spectrum fluoroquinolone antibiotic. These discs are used in the Kirby-Bauer disc diffusion method for in vitro determination of bacterial susceptibility to levofloxacin, following CLSI and EUCAST standards.
Levofloxacin inhibits bacterial DNA gyrase and topoisomerase IV, making it effective against a wide range of Gram-positive and Gram-negative organisms, including Escherichia coli, Klebsiella pneumoniae, Haemophilus influenzae, Pseudomonas aeruginosa, Streptococcus pneumoniae, and Staphylococcus aureus.
These discs are manufactured under ISO 9001 and ISO 13485 standards, ensuring consistent quality, reproducibility, and reliability for clinical, research, and pharmaceutical microbiology laboratories.
Key Features & Benefits
- Standardized Dose: Each disc contains 5 µg of levofloxacin, ensuring reproducibility
- Precision Manufacturing: High-quality filter paper for even diffusion of the antimicrobial agent
- CLSI and EUCAST Compliant: Interpretable with standard breakpoint guidelines
- Reliable Zone Interpretation: Enables differentiation of susceptible, intermediate, and resistant strains
- Broad-Spectrum Activity: Suitable for testing both Gram-positive and Gram-negative pathogens
- Ready to Use: Supplied in cartridges or sealed packs for easy handling and contamination prevention
- Storage-Stable: Maintains potency under proper refrigerated storage conditions
- ISO-Certified Manufacturing: Ensures product traceability and international quality compliance
Applications
- Routine antimicrobial susceptibility testing (AST) in clinical microbiology
- Surveillance of levofloxacin resistance trends in healthcare settings
- Validation of antibiotic therapy options for patient isolates
- Research in pharmacodynamics and antibiotic efficacy
- Teaching laboratories for Kirby-Bauer disc diffusion technique
Technical Specifications
| Attribute | Specification |
|---|---|
| Active Ingredient | Levofloxacin (LEV) |
| Concentration per Disc | 5 µg |
| Disc Diameter | 6 mm |
| Disc Material | High-quality absorbent paper |
| Storage Temperature | 2–8°C (refrigerated) |
| Shelf Life | As indicated on product packaging (typically 24 months) |
| Standards Compliance | CLSI M100, EUCAST |
| Packaging Format | Typically 50 discs/cartridge or sealed pouches |
| Manufacturer | Liofilchem® |
| Product Use | For in vitro diagnostic use only |
Target Organisms (Selected Examples)
- Escherichia coli
- Klebsiella pneumoniae
- Haemophilus influenzae
- Pseudomonas aeruginosa
- Staphylococcus aureus (including MRSA)
- Streptococcus pneumoniae
- Proteus spp.
- Enterobacter spp.
Always refer to the latest CLSI M100 or EUCAST breakpoint tables for interpretation of inhibition zone diameters.
The Liofilchem® Levofloxacin 5 µg Antimicrobial Susceptibility Discs offer a precise and standardized method for evaluating bacterial susceptibility to levofloxacin. Trusted by microbiology professionals worldwide, these discs are essential for clinical diagnostics, resistance surveillance, and antibiotic stewardship programs.