Furthermore, we screened eight types of drugs which were commonly used in GC according to the results of all drugs, including multitarget tyrosine kinase inhibitor, anti-VEGFR monoclonal antibody, HER-2 tyrosine kinase inhibitor, Hedgehog(Hh) signaling pathway inhibitor, anti-HGFMET monoclonal antibody, anti-mTOR monoclonal antibody, Akt inhibitor, Insulin-like growth factor receptor (IGF-IR) inhibitor. The gene discussed is ERBB2; the disease is gastric cancer.