Capecitabine. Molecular model of the drug capecitabine (C15.H22.F.N3.O6). This drug is sold under the brand name Xeloda. It is an orally-administered chemotherapeutic agent used in the treatment of numerous cancers. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (dark blue), oxygen (red) and fluorine (light blue).