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Reviewed by the Scan Dose Research Team and Clinical Advisory Board

St. John's Wort

MODERATE EVIDENCEBotanicalLast updated

SCAN DOSE SUMMARY

Hypericum perforatum — equivalent to SSRIs for mild-moderate depression (Linde 2008 Cochrane review). CRITICAL DRUG INTERACTIONS: PXR/CYP3A4 induction reduces effectiveness of OCPs, warfarin, HIV drugs, immunosuppressants, many more. The most dangerous herb for drug interactions in the entire supplement industry. --- *Reviewed by the Dose AI Research Team and Clinical Advisory Board* *Last updated: 2026-04-06*

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Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:

Not medical advice. Based on published clinical research and systematic reviews.

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