Drug reference directory
Drug reference

sulfanilamide

Sulfonamide · Antibacterial

SulfonamideAntibacterial
CDSCO approved
EXCRETION
—
not curated
INTERACTIONS
—
none in our sources
PREGNANCY
—
not curated

Mechanism

Sulfanilamide is a derivative of para-aminobenzenesulfonamide. The sulfur must be linked directly to the benzene ring. The para-NH2 group (N4) is essential and can be replaced only by moieties that can be converted in vivo to a free amino group.

Other Sulfonamide drugs

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Textbook-sourced·Sources: Goodman & Gilman 14e·Updated: 2026-05-10