Sulfamethoxazole 400mg, trimethoprim 80mg; scored tabs. Sulfamethoxazole inhibits bacterial synthesis of dihydrofolic acid by competing with para-aminobenzoic acid (PABA). Trimethoprim blocks the ...

If you have a sulfa allergy, you should avoid antibiotics such as Bactrim or Septra (TMP/SMX, trimethoprim-sulfamethoxazole). Trimethoprim-sulfamethoxazole is the most commonly used sulfa antibiotic.

Investigators estimated UTI treatment effectiveness and adverse events in accordance with long-standing guidelines using machine learning.

Sulfamethoxazole 80mg, trimethoprim 16mg; per mL; contains sulfites, benzyl alcohol. Sulfamethoxazole inhibits bacterial synthesis of dihydrofolic acid by competing with para-aminobenzoic acid (PABA).