St. John's Wort

certified organic Saint John's Wort (Hypericum perforatum) dried flowering tops and leaf extract

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1
NIH LiverTox — hepatotoxicity
Category D · Possible cause
About LiverTox →

LiverTox Category D. Few case reports of hepatitis; causality uncertain. Major drug-interaction concern (CYP3A4 induction) — can reduce levels of warfarin, oral contraceptives, immunosuppressants, HIV antivirals.

LiverTox record (NIH NCBI Bookshelf) →
Other forms of St. John's Wort

25 sibling forms

Distinct chemical forms sharing the same parent nutrient. Different UNIIs, different bioavailability, different effects — never collapsed.

Top brands carrying certified organic Saint John's Wort (Hypericum perforatum) dried flowering tops and leaf extract

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Products containing certified organic Saint John's Wort (Hypericum perforatum) dried flowering tops and leaf extract

1 in catalog