adrenaline vs Adrenalin

adrenaline and Adrenalin both are nouns.

Word	Noun	Adjective	Verb	Adverb
adrenaline	Yes	No	No	No
Adrenalin	Yes	No	No	No

As nouns, adrenaline and Adrenalin are synonyms defined as:

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

Other synonyms of adrenaline include epinephrin, epinephrine.

adrenaline (noun)	Adrenalin (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