A novel pharmaceutical composition which can inhibit the formation of thrombi and emboli after the placement of a stent is provided. A pharmaceutical composition for inhibiting the formation of thrombi and emboli after the placement of a stent, said pharmaceutical composition containing edoxaban, a pharmaceutically acceptable salt of edoxaban or a hydrate of edoxaban or the pharmaceutically acceptable salt.本發明之課題為提供一種新的醫藥組成物,其可抑制支架放置後的血栓、栓塞之形成。本發明之解決手段為一種用以抑制支架放置後之血栓、栓塞之形成的醫藥組成物,其含有依度沙班(edoxaban)或其藥理學上可容許之鹽或是彼等之水合物。
