Metmin 500mg Tablet contains Metformin hydrochloride, a biguanide class oral antihyperglycemic agent used primarily in the management of type 2 diabetes mellitus. Metformin acts by decreasing hepatic glucose production, decreasing intestinal absorption of glucose, and improving insulin sensitivity by increasing peripheral glucose uptake and utilization. This multifaceted mechanism helps to achieve better glycemic control without causing significant hypoglycemia when used as monotherapy. Metmin 500mg is indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes, particularly in overweight patients or those who have not responded adequately to diet and exercise alone. It may be used as monotherapy or in combination with other antidiabetic agents, including insulin. The tablet should be taken orally, usually with meals to reduce gastrointestinal side effects such as nausea, vomiting, diarrhea, and abdominal discomfort. Caution is advised in patients with renal impairment, hepatic dysfunction, or conditions predisposing to hypoxia, as these increase the risk of lactic acidosis, a rare but serious adverse effect. Regular monitoring of renal function and glycemic status is recommended during therapy. Metmin 500mg should be used under medical supervision with appropriate lifestyle modifications for optimal diabetes management.