https://commons.wikimedia.org/wiki/File:Antibiotics_coverage_diagram.jpg

Cefepime = ceftriaxone + pseudomonas coverage

Zosyn (piperacillin/tazobactam) = cefepime + anaerobic coverage

Meropenem = Zosyn + ESBL coverage

Ertapenem = Meropenem – pseudomonas coverage

alternatively…

Cefepime = ceftriaxone + pseudomonas coverage

Zosyn (piperacillin/tazobactam) = cefepime + anaerobic & Enterococcal coverage

Imipenem = Zosyn + ESBL – Enterococcus faecium

Meropenem = Imipenem – Enterococcus faecalis

Ertapenem = Meropenem – pseudomonas coverage

Taken from an attending whose name I do not know - let me know if it was you!

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For educational use only. Double check important info. If you have feedback or corrections, submit here.

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