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A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K31/00—Medicinal preparations containing organic active ingredients
A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
A61K31/235—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids having an aromatic ring attached to a carboxyl group
A61K31/24—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids having an aromatic ring attached to a carboxyl group having an amino or nitro group
A61K31/245—Amino benzoic acid types, e.g. procaine, novocaine