epinephrine vs epinephrin

epinephrine and epinephrin both are nouns.

Word	Noun	Adjective	Verb	Adverb
epinephrine	Yes	No	No	No
epinephrin	Yes	No	No	No

As nouns, epinephrine and epinephrin are synonyms defined as:

epinephrine and epinephrin: a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action

Other synonyms of epinephrine include Adrenalin, adrenaline.

epinephrine (noun)	epinephrin (noun)
a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action	a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action