veronal vs barbital

veronal and barbital both are nouns.

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

As nouns, veronal and barbital are synonyms defined as:

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

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