Treatment of diseases, including cancer , with chemicals.
Some cancer drugs interfere with cancer-cell division or enzyme processes. However, they have serious side effects, attacking some healthy cells and reducing resistance to infection. Certain breast cancer and prostate cancer , leukemia , and lymphomas . Derivatives of plants such as periwinkle (vincristine, vinblastine) and yew ({{link=taxol">taxol ) have been found effective against Hodgkin disease , leukemia, and breast cancer.