Is Oncovin a herbal plant??

Oncovin (vincristine) is not exactly a herbal plant.

Vincristine is a cancer (antineoplastic) medication. Vincristine interferes with the growth of cancer cells and slows their growth and spread in the body.

Vincristine is used in the treatment of leukemia. It has also been used in the treatment of Hodgkin's lymphoma, non-Hodgkin's lymphoma, rhabdomyosarcoma, neuroblastoma, Wilms' tumor, and other types of cancer.

Oncovin (vincristine) -is a periwinkle plant derivative used as an antineoplastic drug (trade name Oncovin); used to treat cancer of the lymphatic system.

http://www.thefreedictionary.com/Oncovin

http://www.drugs.com/mtm/oncovin.html