Lung Abscess Medication
- Author: Nader Kamangar, MD, FACP, FCCP, FCCM; Chief Editor: Zab Mosenifar, MD more...
Medication Summary
Most abscesses develop secondary to aspiration and are caused by anaerobes. A history suggestive of community acquired pneumonia or a history of development of abscess in a hospitalized patient is important in deciding the appropriate antibiotic coverage.
Antibiotics
Class Summary
Empiric antimicrobial therapy must be comprehensive and should cover all likely pathogens suspected in this clinical setting.
Clindamycin (Cleocin)
Lincosamides are used for treatment of serious skin and soft tissue staphylococcal infections. Also effective against aerobic and anaerobic streptococci, except enterococci. Inhibits bacterial growth, possibly by blocking dissociation of peptidyl t-RNA from ribosomes, causing RNA-dependent protein synthesis to arrest.
Cefoxitin (Mefoxin)
Second-generation cephalosporin indicated for gram-positive cocci and gram-negative rod infections. Infections caused by cephalosporin- or penicillin-resistant gram-negative bacteria may respond to cefoxitin.
Penicillin G (Pfizerpen)
Interferes with synthesis of cell wall mucopeptide during active multiplication, resulting in bactericidal activity against susceptible microorganisms.
Metronidazole (Flagyl)
Imidazole ring-based antibiotic active against various anaerobic bacteria and protozoa. Used in combination with other antimicrobial agents (except for Clostridium difficile enterocolitis). Not standard practice to use metronidazole alone because some anaerobic cocci and most microaerophilic streptococci are resistant.
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