epinephrin vs epinephrine

epinephrin and epinephrine both are nouns.

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

As nouns, epinephrin and epinephrine are synonyms defined as:

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

Other synonyms of epinephrin include Adrenalin, adrenaline.

epinephrin (noun)	epinephrine (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