| 应用领域 | Antibacterial agent | 
                                
                                    
                                        | 应用领域 | Antiseptic | 
                                
                                    
                                        | 应用领域 | Inhibits dihydrofolate reductase from bacterial sources and from malaria parasites | 
                                
                                    
                                        | 应用领域 | Active against common urinary-tract pathogens except for Pseudomonas aeruginosa | 
                                
                                    
                                        | 应用领域 | Active against Haemophilus-influenzae. | 
                                
                        
                            
                                    
                                        | 生物活性机理 | Folate antagonist | 
                                
                                    
                                        | 生物活性机理 | Bacterial biosynthesis of nucleic acids and proteins is blocked by interference with normal bacterial metabolism of folinate | 
                                
                                    
                                        | 生物活性机理 | Binding to bacterial enzyme is stronger than to the corresponding mammalian enzyme | 
                                
                                    
                                        | 生物活性机理 | Reversible dihydrofolate-reductase-inhibitor | 
                                
                                    
                                        | 生物活性机理 | Blocks production of tetrahydrofolate from dihydrofolate |