| gptkbp:instanceOf | gptkb:drug gptkb:biguanide
 
 | 
                        
                            
                                | gptkbp:approvedInUS | 1994 
 | 
                        
                            
                                | gptkbp:ATCCode | A10BA02 
 | 
                        
                            
                                | gptkbp:bioavailability | 50–60% 
 | 
                        
                            
                                | gptkbp:brand | gptkb:Riomet gptkb:Fortamet
 gptkb:Glucophage
 gptkb:Glumetza
 
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                                | gptkbp:CASNumber | 657-24-9 
 | 
                        
                            
                                | gptkbp:category | gptkb:antidiabetic_medication 
 | 
                        
                            
                                | gptkbp:chemicalFormula | C4H11N5 
 | 
                        
                            
                                | gptkbp:contraindication | liver failure severe kidney disease
 
 | 
                        
                            
                                | gptkbp:discoveredBy | gptkb:James_Bell gptkb:Emile_Werner
 
 | 
                        
                            
                                | gptkbp:discoveredIn | 1922 
 | 
                        
                            
                                | gptkbp:drugClass | antihyperglycemic agent 
 | 
                        
                            
                                | gptkbp:effectOnWeight | weight neutral or modest loss 
 | 
                        
                            
                                | gptkbp:eliminationHalfLife | 4-8.7 hours 
 | 
                        
                            
                                | gptkbp:excretion | renal 
 | 
                        
                            
                                | gptkbp:firstSynthesized | 1922 
 | 
                        
                            
                                | gptkbp:form | gptkb:tablet oral solution
 extended-release tablet
 
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                                | gptkbp:foundIn | gptkb:WHO_Model_List_of_Essential_Medicines 
 | 
                        
                            
                                | gptkbp:legalStatus | prescription only 
 | 
                        
                            
                                | gptkbp:marketedAs | 1957 
 | 
                        
                            
                                | gptkbp:mechanismOfAction | decreases hepatic glucose production increases insulin sensitivity
 
 | 
                        
                            
                                | gptkbp:meltingPoint | 223–226 °C 
 | 
                        
                            
                                | gptkbp:metabolism | not metabolized 
 | 
                        
                            
                                | gptkbp:molecularWeight | 129.164 g/mol 
 | 
                        
                            
                                | gptkbp:origin | derived from Galega officinalis 
 | 
                        
                            
                                | gptkbp:pregnancyCategory | B 
 | 
                        
                            
                                | gptkbp:prescribes | adults children over 10 years
 
 | 
                        
                            
                                | gptkbp:prescriptionStatus | Rx only 
 | 
                        
                            
                                | gptkbp:proteinBinding | negligible 
 | 
                        
                            
                                | gptkbp:riskOfHypoglycemia | low 
 | 
                        
                            
                                | gptkbp:routeOfAdministration | oral 
 | 
                        
                            
                                | gptkbp:sideEffect | gastrointestinal upset lactic acidosis
 
 | 
                        
                            
                                | 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 | Metformin 
 |