Ceftriaxone for Klebsiella pneumoniae UTI

Critical Resistance Considerations

• Carbapenem-resistant K. pneumoniae requires different therapy entirely, such as ceftazidime/avibactam or meropenem/vaborbactam, as ceftriaxone will be ineffective, according to the International Journal of Antimicrobial Agents 1
• Ceftriaxone may have reduced efficacy against ESBL-producing K. pneumoniae, which are increasingly common, as reported by the Morbidity and Mortality Weekly Report 2

Practical Treatment Algorithm

• For complicated UTI with K. pneumoniae, if carbapenem resistance is suspected, do NOT use ceftriaxone—use ceftazidime/avibactam or meropenem/vaborbactam instead, as recommended by the International Journal of Antimicrobial Agents 1

Common Pitfalls to Avoid

• Never use ceftriaxone for NDM-producing K. pneumoniae, as these isolates are typically susceptible only to tigecycline, colistin, and polymyxin B, according to the Morbidity and Mortality Weekly Report 2