having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins

Full Title

Medicinal preparations containing organic active ingredients > Heterocyclic compounds > having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins

Classification Context

Section:

HUMAN NECESSITIES

Class:

MEDICAL OR VETERINARY SCIENCE; HYGIENE

Subclass:

PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES

Child Classifications

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• A61K 31/396 having three-membered rings, e.g. aziridine
• A61K 31/397 having four-membered rings, e.g. azetidine
• A61K 31/4 having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
• A61K 31/41 having five-membered rings with two or more ring hetero atoms, at least one of which is nitrogen, e.g. tetrazole
• A61K 31/435 having six-membered rings with one nitrogen as the only ring hetero atom
• A61K 31/495 having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
• A61K 31/53 having six-membered rings with three nitrogens as the only ring hetero atoms, e.g. chlorazanil, melamine
• A61K 31/535 having six-membered rings with at least one nitrogen and at least one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
• A61K 31/54 having six-membered rings with at least one nitrogen and at least one sulfur as the ring hetero atoms, e.g. sulthiame
• A61K 31/55 having seven-membered rings, e.g. azelastine, pentylenetetrazole