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Bugs + Drugs
Antimicrobials
Drug of choice | Bug |
---|---|
Penicillin G | Spirochetes |
Penicillin G | Strep except Enterococcus |
Penicillin G | Staph Saprophyticus |
Penicillin G | Clostridia except C. difficile |
Penicillin G | Corynebacterium |
Penicillin G | Actinomyces |
Penicillin G | N. meningitidis |
Ampicillin/Amoxicillin | Listeria |
Ampicillin/Amoxicillin | Borrelia burgdorferi |
Amp/Amox + AG | Enterococcus |
Amp/Amox + AG | S. pneumo when Otitis Media, Sinusitis |
Nafcillin | S. aureus |
Piperacillin | Pseudomonas |
2nd generation cephalosporins (Cefoxitin, Cefuroxime) | Gram negative bacilli |
Ceftriaxone | Chlamydia |
Ceftriaxone | Meningitis |
Vancomycin | MRSA |
Vancomycin | Enterococcus |
Vancomycin | C. difficile |
Daptomycin | VRE |
Macrolides | Pneumococcal pneumonia |
Macrolides | S. pyogenes |
Macrolides | Gram neg bacilli (enteric + non-enterics) |
Clindamycin | Bacillus cereus |
Clindamycin | Can use for S. aureus |
Tetracyclines (Doxycycline) | Chlamydia |
Tetracyclines (Doxycycline) | Rickettsiae |
Tetracyclines (Doxycycline) | Vibrio |
Tetracyclines (Doxycycline) | N. gonorrheae |
Tetracyclines (Doxycycline) | Bacillus anthracis |
Tetracyclines (Doxycycline) | Borrelia |
TMP/SMX | Nocardia |
TMP/SMX | Gram neg bacilli (enteric + non-enterics) |
FQs (Ciprofloxacin) | Bacillus anthracis |
FQs (Ciprofloxacin) | Gram neg bacilli (enteric + non-enterics) |
Metronidazole | Giardia |
Metronidazole | Trichomonas |
Metronidazole | Bacterioides Fragilis |