Glucophage XR 500mg is a prolonged-release oral medication containing metformin hydrochloride, manufactured by Merck. This prescription medication comes in a pack of 30 tablets and is primarily used to treat type 2 diabetes by helping to control blood sugar levels. The XR in the name stands for 'Extended Release', meaning the medication is designed to release slowly over time for better blood sugar control. The tablets should be taken with meals as prescribed by your healthcare provider. This medication is manufactured by Merck, a trusted pharmaceutical company. As with all prescription medications, it should only be taken under medical supervision and stored in a cool, dry place out of reach of children.