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Medical Definition of Atractylic acid
1. A highly poisonous steroid glycoside from Atractylis gummifera L. (Compositae), having a strychnine-like action that produces convulsions of a hypoglycaemic nature; the aglycon, atractyliginin, is combined with glucose and isovaleric acid, and is the toxic principle. Atractylic acid interferes with oxidative reactions, the citric acid cycle, and nerve conduction. (05 Mar 2000)