IPC Subgroup
A61K 31/31 containing nitrogen
Introduced: July 1974
Last revised: January 2006
Full Title
Medicinal preparations containing organic active ingredients > Compounds containing heavy metals > Mercury compounds > containing nitrogen
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES