A method for treating a cancer includes administering to a subject in need thereof a pharmaceutical composition containing a therapeutically effective amount of Paroxetine or a pharmaceutical acceptable salt thereof. The cancer is selected from the group consisting of pleural-related cancer, abdominal-related cancer, endocrine-related cancer, gastrointestinal tract-related cancer, osteosarcoma, skin cancer, and blood cancer. The pleural-related cancer is lung cancer. The abdominal-related cancer is selected from bladder cancer, cervical cancer, and kidney cancer. The endocrine-related cancer is selected from prostate cancer, breast cancer, and ovarian cancer. The gastrointestinal tract-related cancer is selected from gastric cancer, hepatic cancer, colorectal cancer, pancreatic cancer, and tongue cancer.
