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. Author manuscript; available in PMC: 2023 May 29.
Published in final edited form as: Pediatr Diabetes. 2020 Dec 3;22(2):182–191. doi: 10.1111/pedi.13148

Table 2:

Generic Metformin formulations in the US and their approximate costs [36]

Release Dosages Brand equivalent Retail Unit Price
Standard Release 500 Glucophage® $0.06–0.07
850 $0.06–0.07
1000 $0.06–0.07
Extended Release 500 Glucophage® XR $0.16–0.43
750 $0.06–0.95
Extended Release 500 Fortamet® $0.02–8.30
1000 $5–18
Extended Release 500 Glumetza® $46–51
1000 $21–102
Solution/SR 500mg/5mL Riomet® $1.22 (per mL)
Solution/XR 500mg/5mL Riomet® ER $1.25 (per mL)