| Microorganism |  |  |  | 
  
    | Antimicrobial |  |  | Reference | 
            
			        
			            | Citrobacter spp. | 0.008 | 0.25 | ≤0.008 - 4 | Ertapenem (Invanz)  | 493 | 
                
			        
			            | Citrobacter spp. | 0.03 | 1 | ≤0.004 - 32 | Ciprofloxacin (Cipro, Ciproxin, Ciprobay)  | 268 | 
                
			        
			            | Citrobacter spp. | 0.03 | 1 | ≤0.008 - >16 | Ciprofloxacin (Cipro, Ciproxin, Ciprobay)  | 493 | 
                
			        
			            | Citrobacter spp. | 0.03 | 1 | ≤0.03 - >4 | Gatifloxacin (Tequin)  | 412 | 
                
			        
			            | Citrobacter spp. | 0.06 | 0.12 | 0.015 - 2 | Cefmenoxime  | 1438 | 
                
			        
			            | Citrobacter spp. | 0.06 | 2 | ? - ? | Ceftobiprole (Zeftera)  | 942 | 
                
			        
			            | Citrobacter spp. | 0.12 | 0.5 | ≤0.016 - >4 | Ciprofloxacin (Cipro, Ciproxin, Ciprobay)  | 412 | 
                
			        
			            | Citrobacter spp. | 0.12 | 0.5 | ≤0.12 - >16 | Cefepime (Maxipime)  | 412 | 
                
			        
			            | Citrobacter spp. | <=0.12 | 1 | ? - ? | Cefmenoxime  | 1389 | 
                
			        
			            | Citrobacter spp. | 0.12 | 4 | 0.008 - 64 | Levofloxacin (Levaquin, Quixin)  | 268 | 
                
			        
			            | Citrobacter spp. | >0.12 | >16 | ≤0.12 - >16 | Aztreonam (Azactam)  | 412 | 
                
			        
			            | Citrobacter spp. | 0.25 | 1 | ≤0.5 - >8 | Imipenem  | 412 | 
                
			        
			            | Citrobacter spp. | 0.25 | 4 | 0.008 - 8 | Gemifloxacin  | 268 | 
                
			        
			            | Citrobacter spp. | 0.25 | 32 | ≤0.25 - >32 | Ceftriaxone (Rocephin)  | 412 | 
                
			        
			            | Citrobacter spp. | 0.25 | 128 | ? - ? | Ceftazidime (Ceptaz, Fortaz, Tanicef)  | 204 | 
                
			        
			            | Citrobacter spp. | 0.5 | 1 | 0.06 - 2 | Imipenem  | 493 | 
                
			        
			            | Citrobacter spp. | 0.5 | 8 | 0.015 - 8 | DC-159a  | 268 | 
                
			        
			            | Citrobacter spp. | 0.5 | 8 | 0.015 - 32 | Moxifloxacin (BAY 12-8039, Avelox)  | 268 | 
                
			        
			            | Citrobacter spp. | 0.5 | 16 | 0.015 - 32 | Garenoxacin (T-3811, BMS-284756)  | 268 | 
                
			        
			            | Citrobacter spp. | 1 | 2 | ≤0.25 - 32 | Amikacin (Amikin)  | 412 | 
                
			        
			            | Citrobacter spp. | 1 | 16 | 0.12 - 64 | Cefamandole (Mandol)  | 1438 | 
                
			        
			            | Citrobacter spp. | >1 | >16 | ? - ? | Cefditoren (Spectracef)  | 293 | 
                
			        
			            | Citrobacter spp. | 1 | 32 | 0.12 - >32 | Tigemonam  | 1494 | 
                
			        
			            | Citrobacter spp. | 1 | >32 | ? - ? | Cefamandole (Mandol)  | 1389 | 
                
			        
			            | Citrobacter spp. | ≤2 | ≤2 | ≤2 - >16 | Gentamicin (Gentamycin, Garamycin)  | 412 | 
                
			        
			            | Citrobacter spp. | >2 | >16 | ≤2 - >16 | Ceftazidime (Ceptaz, Fortaz, Tanicef)  | 412 | 
                
			        
			            | Citrobacter spp. | 2 | 32 | ≤0.5 - 128 | Zosyn  | 412 | 
                
			        
			            | Citrobacter spp. | 4 | 8 | 1 - 64 | Cefoxitin (Mefoxin)  | 1438 |