INDICATIONS AND USAGE
To reduce the development of drug-resistant bacteria and maintain the effectiveness of MERREM I.V. and other antibacterial drugs, MERREM I.V. should only be used to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
MERREM I.V. is indicated as single agent therapy for the treatment of the following infections when caused by susceptible isolates of the designated microorganisms:
Skin and Skin Structure Infections
Complicated skin and skin structure infections due to Staphylococcus aureus (β-lactamase and non-β-lactamase producing, methicillin susceptible isolates only), Streptococcus pyogenes, Streptococcus agalactiae, viridans group streptococci , Enterococcus faecalis (excluding vancomycin-resistant isolates), Pseudomonas aeruginosa, Escherichia coli, Proteus mirabilis, Bacteroides fragilis, and Peptostreptococcus species.
Complicated appendicitis and peritonitis caused by viridans group streptococci, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Bacteroides fragilis, B. thetaiotaomicron, and Peptostreptococcus species.
Bacterial Meningitis (Pediatric patients > 3 months only)
Bacterial meningitis caused by Streptococcus pneumoniae ‡, Haemophilus influenzae (β-lactamase and non-β-lactamase-producing isolates), and Neisseria meningitidis.
‡ The efficacy of meropenem as monotherapy in the treatment of meningitis caused by penicillin nonsusceptible isolates of Streptococcus pneumoniae has not been established.
MERREM I.V. has been found to be effective in eliminating concurrent bacteremia in association with bacterial meningitis.
For information regarding use in pediatric patients (3 months of age and older) see PRECAUTIONS - Pediatrics ADVERSE REACTIONS, and DOSAGE AND ADMINISTRATION sections.
Appropriate cultures should usually be performed before initiating antimicrobial treatment in order to isolate and identify the organisms causing infection and determine their susceptibility to MERREM I.V.
MERREM I.V. is useful as presumptive therapy in the indicated condition (i.e., intra-abdominal infections) prior to the identification of the causative organisms because of its broad spectrum of bactericidal activity.
Antimicrobial therapy should be adjusted, if appropriate, once the results of culture(s) and antimicrobial susceptibility testing are known.