Glucophage XR 750 mg is a brand of metformin hydrochloride, specifically formulated as a prolonged-release (extended-release) tablet. Each tablet contains 750 mg of metformin, a medication commonly used to manage type 2 diabetes. Metformin works by helping to control blood sugar levels by improving the body's response to insulin and reducing the amount of sugar produced by the liver. The extended-release formulation allows for a slower, more consistent release of the medication over time, which can help reduce side effects such as gastrointestinal discomfort, which is common with regular metformin.