Oncovin vs vincristine

Oncovin and vincristine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oncovin	Yes	No	No	No
vincristine	Yes	No	No	No

As nouns, Oncovin and vincristine are synonyms defined as:

Oncovin and vincristine: periwinkle plant derivative used as an antineoplastic drug (trade name Oncovin); used to treat cancer of the lymphatic system

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