IPC Subgroup
A61K 47/22 Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
Introduced: January 1990
Last revised: January 2006
Full Title
Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient > Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite > Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES