St John's Wort for Depression: The Clinical Evidence, Drug Interactions and What to Expect
St John's Wort has 38 clinical trials and is the only herbal product awarded a top-level 'Recommended' rating by the WFSBP/CANMAT international psychiatric guidelines. In 11 head-to-head trials against antidepressants, it showed equivalent efficacy β with fewer side effects in most. But it has serious drug interactions that affect birth control, warfarin, and HIV medications. This guide covers the complete evidence and safety picture.