Vinca alkaloids are used to treat various types of cancer, including leukemia, lymphoma, and breast cancer. They also have other uses, such as treating lung cancer and Kaposi's sarcoma. These medications work by stopping cancer cells from dividing, which helps to slow or stop the growth of the cancer. Vinca alkaloids are usually given as injections. Examples include vincristine (Vincasar PFS), vinblastine, and vinorelbine. You will receive these treatments under the supervision of a healthcare professional, such as an oncologist.