500 mg: One extended release tablet contains 500 mg metformin hydrochloride corresponding to 390 mg metformin base.
750 mg: One extended release tablet contains 750 mg metformin hydrochloride corresponding to 585 mg metformin base.
1,000 mg: Each extended release tablet of Glucophage XR 1000 mg contains 1000 mg metformin hydrochloride corresponding to 780 mg metformin base.
Excipients/Inactive Ingredients: 500 mg: Magnesium stearate, sodium carboxymethylcellulose, hypromellose.
750 mg and 1,000 mg: Magnesium stearate, Carmellose sodium, Hypromellose.