Semaglutide is a peptide belonging to the class of glucagon-like peptide-1 (GLP-1) receptor agonists, commonly used in the treatment of type 2 diabetes. It works by mimicking the effects of natural GLP-1, a hormone that helps regulate blood sugar levels. Semaglutide stimulates insulin release in response to elevated blood glucose levels and reduces the production of glucagon, another hormone that raises blood sugar. This dual action helps control blood sugar levels, improve glycemic control, and may lead to weight loss.