sulfamethoxazole, Gantanol, Gantanol DS

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Medical and Pharmacy Editor:

GENERIC NAME: sulfamethoxazole (discontinued)

BRAND NAME: Gantanol (discontinued), Gantanol DS (discontinued)

DRUG CLASS AND MECHANISM: Sulfamethoxazole is an anti- bacterial sulfonamide. It prevents the formation of dihydrofolic acid, a compound that bacteria must be able to make in order to survive. Although it was once a very useful antibiotic, it is almost obsolete as a single agent today due to the development of bacterial resistance to its effects. Sulfamethoxazole is now used primarily in combination with trimethoprim, a combination product known as Bactrim or Septra. Sulfamethoxazole was approved by the FDA in 1961. According to the FDA database, all brand and generic formulations of sulfamethoxazole have been discontinued.

PRESCRIPTION: Yes

GENERIC AVAILABLE: Yes

PREPARATIONS: Tablets: 500 mg and 1 gm.

STORAGE: The tablets should be kept at room temperature, 15-30 C (59-86 F).

PRESCRIBED FOR: Sulfamethoxazole is used for the treatment of malaria (in combination with quinine sulfate and pyrimethamine), conjunctivitis (inflammation of the conjunctiva of the eye) due to chlamydia, toxoplasmosis (in combination with pyrimethamine), and urinary tract infections (UTI).




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