Ethocaine vs procaine

Ethocaine and procaine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ethocaine	Yes	No	No	No
procaine	Yes	No	No	No

As nouns, Ethocaine and procaine are synonyms defined as:

Ethocaine and procaine: a white crystalline powder (trade name Ethocaine) administered near nerves as a local anesthetic in dentistry and medicine

Ethocaine (noun)	procaine (noun)
a white crystalline powder (trade name Ethocaine) administered near nerves as a local anesthetic in dentistry and medicine	a white crystalline powder (trade name Ethocaine) administered near nerves as a local anesthetic in dentistry and medicine