Novapime is a 4th generation injectable cephalosporin antibiotic intended for IM or IV administration.
Microbiology: Cefepime is a bactericidal agent that acts by inhibition of bacterial cell wall synthesis. It has a spectrum of activity against a range of gram-positive and gram-negative bacteria. Cefepime is highly resistant to hydrolysis by a number of β-lactamases, has a low affinity for chromosomally encoded β-lactamases and exhibits rapid penetration into gram-negative bacterial cells.
Cefepime has been shown to be active against most strains tested of the following organisms both
in vitro and in clinical infections.
Gram-Negative Aerobes:
Acinetobacter calcoaceticus (subsp
anitratus,
lwoffi);
Enterobacter spp (including
E. aerogenes,
E. agglomerans,
E. cloacae,
E. sakazakii),
Escherichia coli;
Haemophilus influenzae (including strains of β-lactamase-producing
H. influenzae);
Haemophilus parainfluenzae;
Klebsiella spp (including
K. oxytoca,
K. ozaenae,
K. pneumoniae);
Moraxella catarrhalis (formerly
Branhamella catarrhalis);
Morganella morganii;
Proteus mirabilis;
Pseudomonas aeruginosa;
Serratia marcescens.
Cefepime exhibits
in vitro minimum inhibitory concentrations (MICs) of ≤8 mcg/mL against ≥90% of the strains of the following microorganisms; however,
in vitro activity does not necessarily imply clinical efficacy.
Gram-Positive Aerobes:
Staphylococcus aureus (including β-lactamase-producing strains but excluding methicillin-resistant staphylococci),
Staphylococcus epidermidis (including β-lactamase-producing strains),
Staphylococcus hominis,
Staphylococcus saprophyticus, Group D streptococci (
Streptococcus bovis), Viridans streptococci.
Anaerobes:
Clostridium perfringens,
Mobiluncus sp.
Pharmacokinetics: The average plasma concentration of cefepime observed in healthy adult male volunteers at various times following single 30-min infusion (IV) of cefepime 500 mg, 1 g and 2 g are summarized in Table 1. Elimination of cefepime is principally via renal excretion with an average (±SD) t
½ of 2±0.3 hrs.
There is no evidence of accumulation. The protein-binding of cefepime in blood is approximately 20% and is independent of its concentration in serum. Cefepime is excreted unchanged in urine which accounts for approximately 85% of the administered dose. (See Tables 1 and 2.)
Click on icon to see table/diagram/image
Click on icon to see table/diagram/image