inhalation anaesthetic vs inhalation anesthetic

inhalation anaesthetic and inhalation anesthetic both are nouns.

Word	Noun	Adjective	Verb	Adverb
inhalation anaesthetic	Yes	No	No	No
inhalation anesthetic	Yes	No	No	No

As nouns, inhalation anaesthetic and inhalation anesthetic are synonyms defined as:

inhalation anaesthetic and inhalation anesthetic: a gas that produces general anesthesia when inhaled

Other synonyms of inhalation anaesthetic include inhalation general anaesthetic, inhalation general anesthetic.

inhalation anaesthetic (noun)	inhalation anesthetic (noun)
a gas that produces general anesthesia when inhaled	a gas that produces general anesthesia when inhaled