Rosuvastatin is a prescription drug licensed to treat high cholesterol and high triglycerides, among other conditions related to heart disease. The medicine works by blocking an enzyme that controls the rate of cholesterol production in the body. In previous research studies, people taking rosuvastatin 10 mg were able to, on average, lower "bad cholesterol" by 45 percent and total cholesterol by 40 percent, as well as raise "good cholesterol" by 8 percent. Rosuvastatin comes as a tablet taken once daily. Some common rosuvastatin side effects include nausea, constipation, and body weakness.