| Microorganism |  |  |  | 
  
    | Antimicrobial |  |  | Reference | 
            
			        
			            | Citrobacter freundii | 4 | 16 | 4 - >32 | Nalidixic acid (NegGam)  | 244 | 
                
			        
			            | Citrobacter freundii | >4 | >32 | 1 - >32 | Cefuroxime (Kefurox, Zinacef)  | 267 | 
                
			        
			            | Citrobacter freundii | 4 | 64 | 4 - >64 | Cefuroxime (Kefurox, Zinacef)  | 1492 | 
                
			        
			            | Citrobacter freundii | 4 | - | 2 - 8 | Pexiganan  | 112 | 
                
			        
			            | Citrobacter freundii | 4 | - | ? - ? | Zosyn  | 323 | 
                
			        
			            | Citrobacter freundii | >6 | >256 | ? - ? | Piperacillin (Pipracil)  | 323 | 
                
			        
			            | Citrobacter freundii | >8 | >8 | 4 - >8 | Ampicillin (Omnipen)  | 462 | 
                
			        
			            | Citrobacter freundii | >8 | >8 | >8 - ? | SCH27899  | 129 | 
                
			        
			            | Citrobacter freundii | 8 | 16 | ? - ? | Pexiganan  | 14 | 
                
			        
			            | Citrobacter freundii | >8 | >64 | 1 - >64 | PD 0326448  | 225 | 
                
			        
			            | Citrobacter freundii | >8 | >128 | 0.5 - >128 | Ceftriaxone (Rocephin)  | 371 | 
                
			        
			            | Citrobacter freundii | 12.5 | 100 | ? - ? | Cefoxitin (Mefoxin)  | 1386 | 
                
			        
			            | Citrobacter freundii | 16 | 16 | 8 - >256 | MSI-78 (Peptide)  | 65 | 
                
			        
			            | Citrobacter freundii | >16 | >32 | 2 - >32 | Amoxicillin-clavulanate  | 493 | 
                
			        
			            | Citrobacter freundii | 16 | - | ? - ? | Amoxicillin-clavulanate  | 308 | 
                
			        
			            | Citrobacter freundii | >32 | >32 | 0.5 - >32 | Cefaclor (Ceclor, Ceclor CD)  | 267 | 
                
			        
			            | Citrobacter freundii | >32 | >32 | >32 - ? | Amoxicillin-clavulanic acid (2:1)  | 1371 | 
                
			        
			            | Citrobacter freundii | >32 | >32 | >32 - ? | Ceftazidime (Ceptaz, Fortaz, Tanicef)  | 1371 | 
                
			        
			            | Citrobacter freundii | >32 | >32 | >32 - ? | Piperacillin-Tazobactam (8:1)  | 1371 | 
                
			        
			            | Citrobacter freundii | >32 | >32 | >32 - ? | Ticarcillin-Clavulanic acid (15:1)  | 1371 | 
                
			        
			            | Citrobacter freundii | >32 | >32 | ? - ? | Cefaclor (Ceclor, Ceclor CD)  | 308 | 
                
			        
			            | Citrobacter freundii | >32 | >32 | ? - ? | Cefixime (Suprax)  | 308 | 
                
			        
			            | Citrobacter freundii | 32 | 64 | 4 - 64 | Amoxicillin-clavulanate  | 497 | 
                
			        
			            | Citrobacter freundii | 32 | >64 | 8 - >64 | Cefaclor (Ceclor, Ceclor CD)  | 1492 | 
                
			        
			            | Citrobacter freundii | 32 | >64 | ? - ? | Cefoxitin (Mefoxin)  | 1389 | 
                
			        
			            | Citrobacter freundii | 32 | >64 | ? - ? | Cephalothin (Cefalotin, Keflin, Seffin)  | 1389 | 
                
			        
			            | Citrobacter freundii | 32 | 128 | 0.25 - >256 | Zosyn  | 371 | 
                
			        
			            | Citrobacter freundii | >32 | >128 | 1 - >128 | Cefuroxime (Kefurox, Zinacef)  | 371 |