This invention discloses uses for nicardipine in preparing anti-lung cancer products. This invention provides uses for nicardipine in the preparation of products to treat non-small cell lung cancer. From carrying out cancer drug repositioning for the FDA- and CFDA-approved drug nicardipine, experiments for this invention show, based on screening of non-anti-cancer drugs for various cancer cell lines (tissue types) and mutation sites, that nicardipine has a new use as an anti-small cell lung cancer and/or anti-non small cell lung cancer medication, thus achieving a new purpose for an old drug.
