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Get Metformin ER (Glucophage XR) for as low as $3.61, which is 93% off the average retail price of $48.74 for the most common version, by using a GoodRx coupon.

| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 500mg | 90 tablets | $64.78 | $3.61 |
| 750mg | 180 tablets | $137.74 | $27.02 |

GoodRx coupon prices last updated on 04/28/26.