Sulamyd vs sulfa

Sulamyd and sulfa both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sulamyd	Yes	No	No	No
sulfa	Yes	No	No	No

As nouns, sulfa is a hypernym of Sulamyd; that is, sulfa is a word with a broader meaning than Sulamyd:

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

Other hypernyms of Sulamyd include sulfa drug, sulfonamide, sulpha.

Sulamyd (noun)	sulfa (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