Sulfamethazine is a sulfonamide antibacterial. Target: Antibacterial Sulfamethazine is an antibiotic used to treat bronchitis, prostatitis and urinary tract infections. Sulfamethazine blocks the synthesis of dihydrofolic acid by inhibiting dihydropteroate synthase. In addition, sulfamethazine is a structural analog and competitive antagonist of para-aminobenzoic acid (PABA) and can inhibit normal bacterial utilization of PABA for the synthesis of folic acid, which is an important metabolite in DNA synthesis [1, 2].

• [1]. Perez, S., P. Eichhorn, and D.S. Aga, Evaluating the biodegradability of sulfamethazine, sulfamethoxazole, sulfathiazole, and trimethoprim at different stages of sewage treatment. Environ Toxicol Chem, 2005. 24(6): p. 1361-7.

  [2]. Kaniou, S., et al., Photocatalytic oxidation of sulfamethazine. Chemosphere, 2005. 60(3): p. 372-80.