Lidocaine vs local anaesthetic

Lidocaine and local anaesthetic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lidocaine	Yes	No	No	No
local anaesthetic	Yes	No	No	No

As nouns, local anaesthetic is a hypernym of Lidocaine; that is, local anaesthetic is a word with a broader meaning than Lidocaine:

Lidocaine: a local anesthetic (trade names Lidocaine and Xylocaine) used topically on the skin and mucous membranes
local anaesthetic: anesthetic that numbs a particular area of the body

Other hypernyms of Lidocaine include local, local anesthetic, topical anaesthetic, topical anesthetic.

Lidocaine (noun)	local anaesthetic (noun)
a local anesthetic (trade names Lidocaine and Xylocaine) used topically on the skin and mucous membranes	anesthetic that numbs a particular area of the body