Xarostat 20 Tablet contains Rosuvastatin 20 mg, a potent lipid-lowering agent belonging to the statin class of medications. It is primarily indicated for the treatment of hypercholesterolemia and mixed dyslipidemia to reduce elevated levels of low-density lipoprotein cholesterol (LDL-C), total cholesterol, and triglycerides, while increasing high-density lipoprotein cholesterol (HDL-C). Rosuvastatin acts by selectively inhibiting HMG-CoA reductase, the rate-limiting enzyme in cholesterol biosynthesis, leading to decreased cholesterol production and increased clearance of LDL particles from the bloodstream. Xarostat 20 is utilized both as monotherapy and in combination with diet and other lipid-lowering therapies to reduce the risk of cardiovascular events such as myocardial infarction, stroke, and the need for revascularization in patients with atherosclerotic cardiovascular disease or multiple risk factors. The tablet is administered orally, typically once daily, with or without food. Dosage adjustments may be necessary based on therapeutic response, patient tolerance, and presence of comorbid conditions such as hepatic or renal impairment. Common adverse effects include myalgia, headache, and gastrointestinal disturbances. Regular monitoring of liver function tests and creatine kinase levels is recommended to detect potential hepatotoxicity or myopathy. Xarostat 20 should be used under medical supervision with appropriate lifestyle modifications.