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
A61K31/335
having oxygen as the only ring hetero atom, e.g. fungichromin
A61K31/335
having oxygen as the only ring hetero atom, e.g. fungichromin
A61K31/35
having six-membered rings with one oxygen as the only ring hetero atom
A61K31/35
having six-membered rings with one oxygen as the only ring hetero atom
A61K31/352
condensed with carbocyclic rings, e.g. methantheline
A61K31/352
condensed with carbocyclic rings, e.g. methantheline