The uses of Septran - Sulfamethoxazole/Trimethoprim include: Co-trimoxazole is a combination of trimethoprim and sulfamethoxazole, a sulfa drug. It eliminates bacteria that cause various infections, including infections of the urinary tract, lungs (pneumonia), ears, and intestines. It also is used to treat 'travelers' diarrhea.' Antibiotics will not work for colds, flu, or other viral infections.
Co-trimoxazole comes as a tablet and a liquid to take by mouth. It usually is taken two times a day but may be taken up to four times a day for severe lung infections. Drink a full glass of water with each dose.