Origin and Etymology of sulfamethoxazole
sulfa + methyl + oxazole, a compound C3H3NO (from International Scientific Vocabulary ox- + azole)
First Known Use: 1960
Medical Definition of sulfamethoxazole
: an antibacterial sulfonamide C10H11N3O3S used alone (as in the treatment of urinary tract infections or prophylaxis against meningococcal meningitis) or in combination with trimethoprim (as in the treatment of Pneumocystis carinii pneumonia, shigellosis, acute otitis media, or urinary tract infections)—see bactrim, septra
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