Metformin is sold in powder form. Metformin Clinical data Pronunciation /mɛtˈfɔːrmɪn/, met-FOR-min Trade names Glucophage, others Other names N,N-dimethylbiguanide[1] AHFS/Drugs.com Monograph MedlinePlus a696005 License data US DailyMed: Metformin Pregnancycategory AU: C[2] Routes ofadministration By mouth Drug class Antidiabetic agent ATC code A10BA02 (WHO) Combinations: Metformin and sulfonylureas A10BD02 (WHO) Metformin and rosiglitazone A10BD03 (WHO) Metformin and pioglitazone A10BD05 (WHO) Metformin and sitagliptin A10BD07 (WHO) Metformin and vildagliptin A10BD08 (WHO) Metformin and saxagliptin A10BD10 (WHO) Metformin and linagliptin A10BD11 (WHO) Metformin and alogliptin A10BD13 (WHO) Metformin and repaglinide A10BD14 (WHO) Metformin and dapagliflozin A10BD15 (WHO) Metformin and canagliflozin A10BD16 (WHO) Metformin and acarbose A10BD17 (WHO) Metformin and gemigliptin A10BD18 (WHO) Metformin and empagliflozin A10BD20 (WHO) Metformin and evogliptin A10BD22 (WHO) Metformin and ertugliflozin A10BD23 (WHO) Metformin, saxagliptin, and dapagliflozinA10BD25 (WHO) Metformin and lobeglitazone A10BD26 (WHO) Metformin, linagliptin and empagliflozin A10BD27 (WHO) Metformin and teneligliptin A10BD28 (WHO)   Pharmacokinetic data Bioavailability 50–60%[11][12] Protein binding Minimal[11] Metabolism Not by liver[11] Elimination half-life 4–8.7 hours[11] Excretion Urine (90%)[11] Identifiers show IUPAC name CAS Number 657-24-9 as HCl: 1115-70-4 PubChem CID 4091 as HCl: 14219 IUPHAR/BPS 4779 DrugBank DB00331 as HCl: DBSALT000114 ChemSpider 3949 as HCl: 13583 UNII 9100L32L2N as HCl: 786Z46389E KEGG D04966 as HCl: D00944 ChEBI CHEBI:6801 as HCl: CHEBI:6802 ChEMBL ChEMBL1431 as HCl: ChEMBL1703 CompTox Dashboard (EPA) DTXSID2023270  ECHA InfoCard 100.010.472  Chemical and physical data Formula C4H11N5 Molar mass 129.167 g·mol−1 3D model (JSmol) Interactive image as HCl: Interactive image Density 1.3±0.1[13] g/cm3 show SMILES show InChI