Corestin 20 mg contains Rosuvastatin, a high-potency statin used to manage elevated cholesterol and triglyceride levels in the blood. It is prescribed for the treatment of primary hypercholesterolemia, mixed dyslipidemia, and for cardiovascular risk reduction in patients at high risk of heart attack or stroke. Rosuvastatin works by inhibiting the HMG-CoA reductase enzyme, which plays a crucial role in the body’s cholesterol production process.