Comment: Re:Actually works to their advantage (Score 4, Interesting) 403
Yes, St. John's Wort is effective. However, you should always consult with your doctor before taking it, as it can interfere with other drugs (specifically, I have read that it prevents or retards the mechanism of absorbing drugs into the bloodstream).
However, do keep in mind that the effectiveness of a single herbal medicine does not change the effectiveness of other herbal medicines.