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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