sulfacetamide vs sulfonamide

sulfacetamide and sulfonamide both are nouns.

Word	Noun	Adjective	Verb	Adverb
sulfacetamide	Yes	No	No	No
sulfonamide	Yes	No	No	No

As nouns, sulfonamide is a hypernym of sulfacetamide; that is, sulfonamide is a word with a broader meaning than sulfacetamide:

sulfacetamide: a topical sulfonamide (trade name Sulamyd) used to treat eye infections
sulfonamide: antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA

Other hypernyms of sulfacetamide include sulfa, sulfa drug, sulpha.

sulfacetamide (noun)	sulfonamide (noun)
a topical sulfonamide (trade name Sulamyd) used to treat eye infections	antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA