Quaalude vs sedative-hypnotic

Quaalude and sedative-hypnotic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Quaalude	Yes	No	No	No
sedative-hypnotic	Yes	No	No	No

As nouns, sedative-hypnotic is a hypernym of Quaalude; that is, sedative-hypnotic is a word with a broader meaning than Quaalude:

Quaalude: sedative-hypnotic drug (trade name Quaalude) that is a drug of abuse
sedative-hypnotic: a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep

Other hypernyms of Quaalude include sedative-hypnotic drug.

Quaalude (noun)	sedative-hypnotic (noun)
sedative-hypnotic drug (trade name Quaalude) that is a drug of abuse	a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep