barbital vs veronal

barbital and veronal both are nouns.

Word	Noun	Adjective	Verb	Adverb
barbital	Yes	No	No	No
veronal	Yes	No	No	No

As nouns, barbital and veronal are synonyms defined as:

Other synonyms of barbital include barbitone, diethylbarbituric acid, diethylmalonylurea.

barbital (noun)	veronal (noun)
a barbiturate used as a hypnotic	a barbiturate used as a hypnotic