Radizid 80 mg is an oral antidiabetic medication manufactured by Radiant Pharmaceuticals Ltd., containing gliclazide, a second-generation sulfonylurea. It is primarily used to manage type 2 diabetes mellitus in adults when diet and exercise alone are insufficient to control blood glucose levels. Gliclazide works by stimulating insulin release from pancreatic β-cells and decreasing hepatic glucose production, thereby lowering blood sugar levels.