Glucophage XR 1000mg is a prolonged-release formulation of metformin hydrochloride manufactured by Merck. Each pack contains 30 extended-release tablets, with each tablet containing 1000mg of the active ingredient. This prescription medication is used for managing type 2 diabetes mellitus. The XR (extended release) formulation allows for once-daily dosing and provides sustained delivery of the medication throughout the day. The tablets come in a white box with blue accents and clear labeling. As a prescription-only medication, it should only be taken under medical supervision and according to prescribed dosage. The prolonged release technology may help improve tolerability compared to immediate release formulations.