How do diabetes medications like insulin affect HbA1c levels?

Insulin and other diabetes medications like metformin, sulfonylureas, or GLP-1 agonists help lower blood sugar levels, which can reduce HbA1c over time. These medications work by improving insulin sensitivity, reducing glucose production, or stimulating insulin release. When taken as prescribed, they help maintain blood sugar within the target range, which leads to improved HbA1c levels. It’s important to take your medications regularly and monitor your blood sugar levels closely. If your HbA1c isn’t improving, your doctor may adjust your treatment plan to optimize your glucose control.