Haemophilus influenzae

Antibiotic
% Susceptible
 
Antibiotic
% Susceptible
Ampicillin
66
   Imipenem
+
Azithromycin
95
   Levofloxacin
+
Aztreonam
+
   Meropenem
+
Cefazolin
  Moxifloxacin
+
Cefepime
+
   Nitrofurantoin
&
Ceftazidime
+
   Oxacillin/Naf
-
Ceftriaxone
95
   Penicillin
-
Cefuroxime
67
   Piperacillin
77
Ciprofloxacin
97
   Piperacillin/tazo
98
Clarithromycin
100
   Ticarcillin/Clav
+
Clindamycin
-
   Tobramycin
+
Doxycycline
96
   TMP/SMX
76
Erythromycin
+/-
   Unasyn/Aug
94
Gentamicin
+
   Vancomycin
-
 
   

Comments:  

 

Numeric data represent local susceptibility data.
(+) = usually effective or >60% susceptible; (+/-) = clinical trials lacking or 30-60% susceptible; (-) = not effective clinically or <30% susceptible - Adapted with permission from The Sanford Guide to Antimicrobial Therapy 2007
(*) Local (non-Sanford Guide) opinion
(S) = synergistic with penicillin/ampicillin;
(&) nitrofurantoin only useful for lower tract urinary tract infections