Sulfonamides and trimethoprim
Long-acting sulfonamides
dalysep kelfizin kelfizina kelfizine kelfizine w longum nsulfanilamide policydal polycidal solfametopirazina sulfalen sulfaleno sulfalenum sulfamethopyrazine sulfamethoxypyrazine sulfametopyrazine sulfametoxypyridazin sulphalene sulphametopyrazine vetkelfizina