Ivus 40 Tablet contains Rosuvastatin 40 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 total cholesterol, low-density lipoprotein cholesterol (LDL-C), 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, thereby decreasing cholesterol production in the liver and enhancing the clearance of LDL particles from the bloodstream. Ivus 40 is prescribed for patients at high risk of cardiovascular events, including those with established coronary artery disease, diabetes mellitus, or familial hypercholesterolemia. The medication is administered orally, typically once daily, with or without food. Patients should adhere to dietary and lifestyle modifications alongside pharmacotherapy to optimize lipid control. Common adverse effects may include headache, myalgia, abdominal pain, and nausea; rare but serious side effects include myopathy and hepatotoxicity, necessitating periodic monitoring of liver enzymes and creatine kinase levels. Ivus 40 should be used cautiously in patients with hepatic impairment and contraindicated during pregnancy and lactation. Regular follow-up with healthcare providers is essential to assess therapeutic response and safety.