Metformin HCL 500 mg is a widely used medication for managing Type 2 diabetes. It works by improving insulin sensitivity and reducing glucose production in the liver, helping to lower blood sugar levels. Typically, it is taken orally with meals to minimize gastrointestinal side effects. The usual starting dose is 500 mg, taken twice daily, but this can be adjusted based on individual needs and blood glucose levels. Common side effects include nausea, diarrhea, and abdominal discomfort, which often improve over time. Regular monitoring of blood glucose and kidney function is essential. Consult your healthcare provider for personalized dosage and usage instructions.