IPC Subgroup
A61K 31/1 Sulfides; Sulfoxides; Sulfones
Introduced: July 1974
Last revised: January 2006
Full Title
Medicinal preparations containing organic active ingredients > Sulfur, selenium or tellurium compounds, e.g. thiols > Sulfides; Sulfoxides; Sulfones
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES