GLP-1 receptor agonists are a class of medications used primarily to treat type 2 diabetes. They work by mimicking the action of the glucagon-like peptide-1 hormone, which helps regulate blood sugar levels. These drugs stimulate insulin secretion when blood sugar is high, reduce the amount of glucose produced by the liver, and slow down gastric emptying, leading to improved blood sugar control. In addition to their effects on blood sugar, GLP-1 receptor agonists can also promote weight loss, making them beneficial for many patients with type 2 diabetes who are overweight. Common examples include liraglutide and semaglutide, which are administered via injection.