having oxo groups directly attached to the heterocyclic ring, e.g. piracetam, ethosuximide

Full Title

Medicinal preparations containing organic active ingredients > Heterocyclic compounds > having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins > having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil > having oxo groups directly attached to the heterocyclic ring, e.g. piracetam, ethosuximide

Classification Context

Section:

HUMAN NECESSITIES

Class:

MEDICAL OR VETERINARY SCIENCE; HYGIENE

Subclass:

PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES