Geevastin 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, helping to reduce elevated levels of low-density lipoprotein cholesterol (LDL-C), total cholesterol, and triglycerides, while modestly increasing high-density lipoprotein cholesterol (HDL-C). Rosuvastatin works 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 cholesterol from the bloodstream. Geevastin 40 is prescribed to patients at high risk of cardiovascular events, including those with a history of coronary artery disease, stroke, or peripheral arterial disease, as well as individuals with familial hypercholesterolemia. The medication is administered orally, typically once daily, with or without food, and dosage adjustments should be guided by lipid level monitoring and patient response. Common adverse effects may include headache, myalgia, and gastrointestinal disturbances, while rare but serious risks involve myopathy and hepatotoxicity, necessitating periodic liver function and creatine kinase assessments. Geevastin 40 should be used under medical supervision, with caution in patients with hepatic impairment, renal dysfunction, or those taking interacting drugs.