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Pharmacology of St. John's Wort The following are compounds found in St. John's wort:
- Anthracene derivatives (0.1 - 0.15%): favoring naphthadihydrodianthrones, in particular hypericin, pseudohypericin.
- Flavonoids (2-4%): such as hyperoside, quercitrin, rutin, and isquercitrin.
- Bioflavonoids including among others - amentoflavone.
- Xanthones: 1,3,6,7-tetrahydroxy-xanthone
- Acylphloroglucinols: hyperforin with small quantities of adhhyperforin.
- Volatile Oil: chief components aliphatic hydrocarbons, including 2-mthyloctane, undecane, dodecanol, caryophyllene and 2-methyl-3-but-3-en-2-ol.
- Oligomeric procyanidines
- Catechin tannins
- Caffeic acid derivatives: including cholorogenic acid.
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