Sulfamethoxazole Trimethoprim is a combination of antibiotics that work in conjunction with each other. Sulfamethoxazole Trimethoprim is often used to treat urinary tract, skin, respiratory, or digestive tract infections. It may be used for ear infections, kennel cough, coccidiosis, and pneumonia. **Proudly sourced directly from the manufacturer or their approved distributor. Guaranteed genuine and backed by the manufacturer.**