Rosuvas 20 mg is generic alternative to Crestor 20 mg.br Rosuvastatinis a member of the drug class of statins, used to treat high cholesterol and related conditions, and to prevent cardiovascular diseasebr br The primary uses of rosuvastatin is for the treatment of dyslipidemia.[1] It is recommended to be used only after other measures such as diet, exercise, and weight reduction have not improved cholesterol levels.