Patent classifications
A
HUMAN NECESSITIES
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A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
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A61K
PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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31/00
Medicinal preparations containing organic active ingredients
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A61K31/135
having aromatic rings; , e.g. ketamine, nortriptyline
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A61K31/137
Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine; or methadone
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