| Microorganism | MIC50 (μg/ml)
 | MIC90 (μg/ml)
 | Range (μg/ml)
 | Antimicrobial | Reference | 
            
			        
			            | Staphylococcus aureus (ATCC 29213) | <0.1 | <0.1 | <0.1 - ? | Tetracycline (Sumycin, Achromycin V, Steclin) | 190 | 
                
			        
			            | Staphylococcus aureus (ATCC 29213) | - | - | 0.25 - ? | Tetracycline (Sumycin, Achromycin V, Steclin) | 215 | 
                
			        
			            | Staphylococcus aureus (ATCC 29213) | - | - | 0.5 - ? | Tetracycline (Sumycin, Achromycin V, Steclin) | 401 | 
                
			        
			            | Staphylococcus aureus (ATCC 29213) | - | - | 0.5 - ? | Tetracycline (Sumycin, Achromycin V, Steclin) | 601 | 
                
			        
			            | Staphylococcus aureus (ATCC 29213) | - | - | 0.5 - ? | Tetracycline (Sumycin, Achromycin V, Steclin) | 299 | 
                
			        
			            | Staphylococcus aureus (ATCC 29213) | - | - | ? - 0.8 | Tetracycline (Sumycin, Achromycin V, Steclin) | 68 |