Rosuvastatin is prescribed to treat high or unhealthy cholesterol levels, as these may lead to dangerous cardiovascular problems like heart attack or stroke. It does so by increasing stores of “good” HDL (high density lipoprotein) cholesterol, while simultaneously decreasing “bad” LDL (low density lipoprotein) cholesterol and triglycerides.Triglycerides are a kind of fat. Rosuvastatin blocks the activity of a liver enzyme called HMG-CoA reductase. Because this enzyme is involved in LDL production, the blockage of HMG-CoA reductase reduces the amount of cholesterol in the liver cells, which prompts those cells to draw LDL from the blood. This leads to reduced cholesterol levels. Rosuvastatin also slows the accumulation of plaque on the arteries and reduces triglyceride production in the blood.
