| gptkbp:instanceOf | gptkb:drug gptkb:biguanide
 
 | 
                        
                            
                                | gptkbp:approvedInUS | 1995 
 | 
                        
                            
                                | gptkbp:ATCCode | A10BA02 
 | 
                        
                            
                                | gptkbp:brand | gptkb:Riomet gptkb:Fortamet
 gptkb:Glucophage
 gptkb:Glumetza
 
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                                | gptkbp:CASNumber | 657-24-9 
 | 
                        
                            
                                | gptkbp:chemicalFormula | biguanide derivative 
 | 
                        
                            
                                | gptkbp:contraindication | gptkb:liver_disease renal impairment
 
 | 
                        
                            
                                | gptkbp:discoveredBy | gptkb:James_Bell gptkb:Emile_Werner
 
 | 
                        
                            
                                | gptkbp:discoveredIn | 1922 
 | 
                        
                            
                                | gptkbp:eliminationHalfLife | 4–8.7 hours 
 | 
                        
                            
                                | gptkbp:excretion | renal 
 | 
                        
                            
                                | gptkbp:hasMolecularFormula | C4H11N5 
 | 
                        
                            
                                | gptkbp:legalStatus | prescription only 
 | 
                        
                            
                                | gptkbp:mechanismOfAction | decreases hepatic glucose production increases insulin sensitivity
 
 | 
                        
                            
                                | gptkbp:meltingPoint | 223–226 °C 
 | 
                        
                            
                                | gptkbp:pregnancyCategory | B (US) B3 (Australia)
 
 | 
                        
                            
                                | gptkbp:routeOfAdministration | oral 
 | 
                        
                            
                                | gptkbp:sideEffect | gastrointestinal upset lactic acidosis
 
 | 
                        
                            
                                | gptkbp:synonym | gptkb:metformin 
 | 
                        
                            
                                | gptkbp:usedFor | gptkb:polycystic_ovary_syndrome gptkb:type_2_diabetes
 
 | 
                        
                            
                                | gptkbp:WHOModelListOfEssentialMedicines | true 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:DB00740 
 | 
                        
                            
                                | gptkbp:bfsLayer | 6 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Metforminum 
 |