Sulfanilic and sulfonamine
\- antimicrobial drugs of fluoroguanine structure with a different mechanism of action.
**Sulfoxine and piperazine** - with similar anthelmintic properties.
Sulfalene
- Chlorosulfonanilide, white crystalline powder, very hygroscopic. The potency is similar to phenatine; characterized by selectivity of action in relation to pathogens of intestinal infections, less active in relation to pathogens of anaerobic infections. It is used primarily for the prevention of infection during cholecystography (2 g before