A
HUMAN NECESSITIES
Load children
A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
Load children
A61K
PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
Load children
A61K31/00
Medicinal preparations containing organic active ingredients
Load children
A61K31/33
Heterocyclic compounds
Load children Filter patents View as hierarchy
A61K31/395
having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
Load children Filter patents View as hierarchy
A61K31/55
having seven-membered rings, e.g. azelastine, pentylenetetrazole
Load children Filter patents View as hierarchy
A61K31/551
having two nitrogen atoms, e.g. dilazep
Load children Filter patents View as hierarchy
A61K31/5513
1,4-Benzodiazepines, e.g. diazepam; or clozapine
Load children Filter patents View as hierarchy