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
31/00
Medicinal preparations containing organic active ingredients
31/00
Medicinal preparations containing organic active ingredients
A61K31/56
Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
A61K31/56
Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
A61K31/57
substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
A61K31/57
substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone