Sulfonamides and trimethoprim
Intermediate-acting sulfonamides
septran septrin simsinomin sinomin solfametossazolo sulfamethalazole sulfamethoxazol sulfamethoxazolum sulfamethoxizole sulfamethylisoxazole sulfametoxazol sulfiodizole sulfisomezole sulphamethoxazol sulphamethoxazole sulphisomezole urobak