-
-
Overview
-
Sulfamethoxazole Sodium is a broad-spectrum bacteriostatic sulfonamide antibiotic belonging to the sulfanilamide family. It was first synthesized in 1957 by Shionogi Inc. in Japan, launched as Sinomin by Shionogi Inc. in 1959, and introduced to the US in 1961. Sulfamethoxazole is normally given in combination with Trimethoprim, a dihydrofolate reductase inhibitor, which inhibits the reduction of dihydrofolic acid to tetrahydrofolic acid. Studies have shown that bacterial resistance develops more slowly with the combination of the two compounds than with either Trimethoprim or Sulfamethoxazole alone.
It is effective against bacteria causing urinary tract infections, bronchitis and prostatitis.Please contact us at for specific academic pricing.
Background
Sulfonamides, like Sulfamethoxazole, inhibit the enzymatic conversion of pteridine and p-aminobenzoic acid (PABA) to dihydropteroic acid by competing with PABA for binding to dihydrofolate synthetase, an intermediate of tetrahydrofolic acid (THF) synthesis. THF is required for the synthesis of purines and dTMP and inhibition of its synthesis inhibits bacterial growth. Since folic acid acid is not naturally synthesized in humans, it is non-toxic. Resistance is due to mutations in the enzymes for folic acid synthesis.
-
- Properties
- Applications
-
Overview