what is bactrim
13 reviews bactrim is the brand name of the generic antibiotic sulfamethoxazole trimethoprim sometimes called co trimoxazole the drug is a combination of two antibiotics it s one part trimethoprim a synthetic drug and five parts sulfamethoxazole a sulfonamide drugactrim is also sometimes prescribed for other types of bacterial pneumonia for acne and for preventing urinary tract infections the food and drug administration fda first approved bactrim in 1973 the drug is made by mutual pharmaceutical co