Rosuvastatin (marketed by AstraZeneca as Crestor) 10 mg tablets. Rosuvastatin, marketed as Crestor, is a member of the drug class of statins, used in combination with exercise, diet, and weight-loss to treat high cholesterol and related conditions, and to prevent cardiovascular disease.It was developed by Shionogi.osuvastatin (marketed by AstraZeneca as Crestor) 10 mg tablets. Rosuvastatin, marketed as Crestor, is a member of the drug class of statins, used in combination with exercise, diet, and weight-loss to treat high cholesterol and related conditions, and to prevent cardiovascular disease.