DIFF Subgroup
A61K 31/4025 not condensed and containing further heterocyclic rings, e.g. cromakalim
Introduced: January 2000
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 > not condensed and containing further heterocyclic rings, e.g. cromakalim
No child classifications to compare. This is a leaf node in both IPC and CPC.