Active substance:
Linezolid
Pharmacotherapeutic group:
Antibacterials for systemic use; Other antibacterials
ATC code: J01XX08
Mechanism of action:
Linezolid is a synthetic, antibacterial agent that belongs to a new class of antimicrobials, the oxazolidinones. It has in vitro activity against aerobic Gram-positive bacteria and anaerobic micro-organisms. Linezolid selectively inhibits bacterial protein synthesis via a unique mechanism of action. Specifically, it binds to a site on the bacterial ribosome (23S of the 50S subunit) and prevents the formation of a functional 70S initiation complex which is an essential component of the translation process.
The in vitro post-antibiotic effect (PAE) of linezolid for Staphylococcus aureus was approximately 2 hours. When measured in animal models, the in vivo PAE was 3.6 and 3.9 hours for Staphylococcus aureus and Streptococcus pneumoniae, respectively.
Therapeutic indications:
- Nosocomial pneumonia
- Community acquired pneumonia
Linezolid Dr. Eberth is indicated in adults for the treatment of community acquired pneumonia and nosocomial pneumonia when known or suspected to be caused by susceptible Gram-positive bacteria. In determining whether Linezolid is an appropriate treatment, the results of microbiological tests or information on the prevalence of resistance to antibacterial agents among Gram-positive bacteria should be taken into consideration.
Linezolid is not active against infections caused by Gram-negative pathogens. Specific therapy against Gram-negative organisms must be initiated concomitantly if a mixed infection with a Gram-negative pathogen is documented or suspected.
- Complicated skin and soft tissue infections
Linezolid Dr. Eberth is indicated in adults for the treatment of complicated skin and soft tissue infections only when microbiological testing has established that the infection is known to be caused by susceptible Gram-positive bacteria.
Linezolid is not active against infections caused by Gram-negative pathogens. Linezolid should only be used in adults with complicated skin and soft tissue infections with known or possible co-infection with Gram-negative organisms if there are no alternative treatment options available. In these circumstances treatment against Gram-negative organisms must be initiated concomitantly.
Linezolid should only be initiated in a hospital environment and after consultation with a relevant specialist such as a microbiologist or infectious diseases specialist.
Consideration should be given to official guidance on the appropriate use of antibacterial agents.