antivenene vs antivenin

antivenene and antivenin both are nouns.

Word	Noun	Adjective	Verb	Adverb
antivenene	Yes	No	No	No
antivenin	Yes	No	No	No

As nouns, antivenene and antivenin are synonyms defined as:

antivenene and antivenin: an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animal

antivenene (noun)	antivenin (noun)
an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animal	an antitoxin that counteracts the effects of venom from the bite of a snake or insect or other animal