The Cidan Capsule which designed by Professor Zheng Weida was listed in the Major science and technology to create “Twelfth Five Year Plan Project”, Cidan Capsule has a higher inhibition rate to tumor, especially its efficacy in the treatment of liver cancer, can relieve the clinical symptoms of cancer, and has synergistic effect to chemotherapy. In addition, Chinese patent medicine Cidan capsule don’t has adverse reaction, can through regulating the whole body function to shrink the volume of tumor in some degree. Through many years of clinical experience, Professor Zheng can flexibility match Cidan capsule add and subtract with “Shen Ling Capsule, Fu Zheng Gu Ben capsule, Gan Yuan Zhu Shui capsule”, in the end, reach a harmonious state which the cancer patients can live with tumor, even completely cured.