Antibiotics

Amoxicillin Family Aminopenicillin

Ampicillin Family Aminopenicillin

Piperacillin Family Antipseudomonal penicillin

Cefazolin Generation 1st-generation cephalosporin

Cefuroxime Generation 2nd-generation cephalosporin

Ceftriaxone Generation 3rd-generation cephalosporin

Cefepime Generation 4th-generation cephalosporin

Ceftaroline Generation 5th-generation cephalosporin (MRSA)

Meropenem Family Carbapenem

Vancomycin MOA Binds D-Ala-D-Ala; inhibits cell wall synthesis

Gentamicin MOA 30S inhibitor; bactericidal

Azithromycin MOA 50S inhibitor

Doxycycline MOA 30S inhibitor

Ciprofloxacin MOA DNA gyrase/topoisomerase inhibitor

Metronidazole MOA Free radical DNA damage in anaerobes

Nitrofurantoin Use Uncomplicated cystitis

Piperacillin-tazobactam Spectrum Pseudomonas + anaerobes

Ceftazidime Spectrum Pseudomonas

Vancomycin Use MRSA; oral for C. difficile

Daptomycin Pearl Not for pneumonia

Gentamicin Adverse effect Nephrotoxicity + ototoxicity

Linezolid Adverse effect Thrombocytopenia; serotonin syndrome

Doxycycline Pregnancy Avoid

Penicillins Pregnancy Generally safe

Cephalosporins Pregnancy Generally safe

TMP-SMX Pearl Avoid near term; hyperK, marrow suppression

CefTRIAXone Mnemonic TRI = 3rd generation

CefEPIME Mnemonic EPI = 4th generation