St John's wort is accepted by the medical literature for use in mild to moderate depression
OP, where did you get that^information?
https://nccih.nih.gov/health/stjohnswort/sjw-and-depression.htm
consumers need to be aware of serious concerns about its safety and effectiveness...
- Combining St. John’s wort with certain antidepressants can lead to a potentially life-threatening increase of serotonin, a brain chemical targeted by antidepressants. St. John’s wort can also limit the effectiveness of many prescription medicines.
- Psychosis is a rare but possible side effect of taking St. John’s wort.
- St. John’s wort is not a proven therapy for depression. Do not use St. John’s wort to replace conventional care or to postpone seeing your health care provider. Inadequately treated depression may become severe and, in some cases, may be associated with suicide. Consult a health care provider if you or someone you know may be depressed....current evidence that St. John’s wort is effective for depression is not conclusive