having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide

Introduced: July 1974

Last revised: January 2006

Full Title

Medicinal preparations containing organic active ingredients > Heterocyclic compounds > having oxygen as the only ring hetero atom, e.g. fungichromin > having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide

Classification Context

Section:: HUMAN NECESSITIES
Class:: MEDICAL OR VETERINARY SCIENCE; HYGIENE
Subclass:: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES

3 direct subcodes

Child Classifications

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A61K 31/341 not condensed with another ring, e.g. ranitidine, furosemide, bufetolol, muscarine
A61K 31/343 condensed with a carbocyclic ring, e.g. coumaran, bufuralol, befunolol, clobenfurol, amiodarone
A61K 31/345 Nitrofurans