Alirocumab is primarily used in the treatment of high cholesterol levels, particularly in patients who are at risk of cardiovascular diseases. It works by inhibiting PCSK9, a specific protein that reduces the liver's ability to remove LDL cholesterol from the blood, thereby lowering the overall cholesterol levels in the body. This medication is often prescribed for individuals who have not achieved desired cholesterol levels through diet and other cholesterol-lowering medications alone. It is also used in patients with familial hypercholesterolemia, a genetic disorder that causes very high levels of LDL cholesterol. By effectively managing cholesterol levels, Alirocumab helps reduce the risk of heart attacks, strokes, and other cardiovascular complications. It is typically administered as a subcutaneous injection, usually every two weeks or monthly, depending on the dosage and patient's condition. Regular monitoring of cholesterol levels is essential while on this treatment to assess its effectiveness and make any necessary adjustments.