| Microorganism | MIC50 (μg/ml)
 | MIC90 (μg/ml)
 | Range (μg/ml)
 | Antimicrobial | Reference | 
            
			        
			            | Clostridium perfringens | <=0.03 | 0.12 | <=0.03 - 0.12 | Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) | 1475 | 
                
			        
			            | Clostridium perfringens | 0.06 | 0.06 | ≤0.03 - 0.125 | Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) | 490 | 
                
			        
			            | Clostridium perfringens | 0.06 | 0.125 | 0.02 - 0.125 | Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) | 29 | 
                
			        
			            | Clostridium perfringens | - | - | 0.108 - ? | Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) | 248 |