IPC Subgroup
A61K 31/275 Nitriles; Isonitriles
Introduced: July 1974
Last revised: January 2006
Full Title
Medicinal preparations containing organic active ingredients > Nitriles; Isonitriles
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- MEDICAL OR VETERINARY SCIENCE; HYGIENE
- Subclass:
- PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
1 direct subcode
Child Classifications
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- A61K 31/277 having a ring, e.g. verapamil