DIFF Subgroup
A61K 31/341 not condensed with another ring, e.g. ranitidine, furosemide, bufetolol, muscarine
Introduced: January 2000
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 > not condensed with another ring, e.g. ranitidine, furosemide, bufetolol, muscarine
No child classifications to compare. This is a leaf node in both IPC and CPC.