Sulfamethoxazole is an antibiotic used for bacterial infections such as urinary tract infections, bronchitis, and prostatitis and is effective against both gram negative and positive bacteria such as Listeria monocytogenes and E. coli. It is also used to prevent and treat a certain type of pneumonia (pneumocystis-type). This medication is a combination of two antibiotics: sulfamethoxazole and trimethoprim. Synthink is a most trusted source of SULFAMETHOXAZOLE Degradation Impurity, SULFAMETHOXAZOLE Genotoxic impurity, SULFAMETHOXAZOLE Process Impurity, USP related compound, SULFAMETHOXAZOLE Nitrosamine impurity, N-Nitroso impurity etc. which are listed on this page.