A
HUMAN NECESSITIES
A
HUMAN NECESSITIES
A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61K
PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K
PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K31/00
Medicinal preparations containing organic active ingredients
A61K31/00
Medicinal preparations containing organic active ingredients
A61K31/33
Heterocyclic compounds
A61K31/33
Heterocyclic compounds
A61K31/395
having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
A61K31/395
having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
A61K31/535
having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
A61K31/535
having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
A61K31/5375
1,4-Oxazines, e.g. morpholine
A61K31/5375
1,4-Oxazines, e.g. morpholine