- A sulfonamide related chemically to sulfisoxazole, with a similar antibacterial spectrum, but a slower rate of absorption from the gastrointestinal tract and urinary excretion.
* * *sul·fa·meth·ox·a·zole or chiefly Brit sul·pha·meth·ox·a·zole -.meth-'äk-sə-.zōl n 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
* * *n.
* * *sul·fa·meth·ox·a·zole (sul″fə-məth-okґsə-zōl) [USP] a sulfonamide used as an antibacterial active against various gram-negative and gram-positive organisms, especially for the treatment of acute urinary tract infections, and as an antiprotozoal; administered orally, usually in combination with another agent such as trimethoprim.
Medical dictionary. 2011.