Serzone vs antidepressant

Serzone and antidepressant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Serzone	Yes	No	No	No
antidepressant	Yes	No	No	No

As nouns, antidepressant is a hypernym of Serzone; that is, antidepressant is a word with a broader meaning than Serzone:

Serzone: an antidepressant drug (trade name Serzone)
antidepressant: any of a class of drugs used to treat depression; often have undesirable side effects

Other hypernyms of Serzone include antidepressant drug.

Serzone (noun)	antidepressant (noun)
an antidepressant drug (trade name Serzone)	any of a class of drugs used to treat depression; often have undesirable side effects