sulfa drug vs sulfa

sulfa drug and sulfa both are nouns.

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

As nouns, sulfa drug and sulfa are synonyms defined as:

sulfa drug and sulfa: antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA

Other synonyms of sulfa drug include sulfonamide, sulpha.

sulfa drug (noun)	sulfa (noun)
antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA	antibacterial consisting of any of several synthetic organic compounds capable of inhibiting the growth of bacteria that require PABA