This document discusses the properties and uses of vinca alkaloids, a class of anti-mitotic and anti-microtubule agents that includes vincristine, vinblastine, vinorelbine, and vindesine. They are cell-cycle specific cytotoxic agents used in combination chemotherapy to treat lymphomas, breast cancer, and testicular carcinoma. They work by binding to mitotic spindle proteins and causing metaphase arrest. Side effects include neurotoxicity, nausea, vomiting, alopecia, and myelosuppression.