Weight loss medications are a class of drugs used to treat type 2 diabetes and obesity. When we eat food, our gut releases a hormone that helps the body regulate hunger and blood sugar levels. This hormone is called GLP-1 (glucagon-like peptide-1). Weight loss medications mimic the actions of the hormone GLP-1 and help your pancreas release more insulin to lower blood sugar levels, delaying emptying from the stomach making you feel full.