Rosuvastatin calcium. Molecular model of the drug rosuvastatin calcium ((C22.H27.F.N3.O6.S)?2.Ca)). This drug is sold under the brand name Crestor. It is a member of the drug class of statins and primarily used for the treatment of dyslipidaemia. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (dark blue), oxygen (red), sulfur (yellow), fluorine (light blue) and calcium (green).