Tell me about st. john's wort?

Essentially an SSRI: Active ingredient of st. John's wort essentially works like an ssri (selective serotonergic reuptake inhibitor), examples of which include prozac, paxil, (paroxetine) zoloft. Side-effects are also similar to other ssri's, including risk of drug-drug interactions.

Serotonin and more: This is a potent botanical source of some compounds that work similarly to selective serotonin reuptake inhibitors. The recommended dosages on bottles may be low; work with your health care provider on how much may be right for you. The stuff interacts with other meds and taking it with a prescription SSRI can be very dangerous. It's also a sun-sensitizer.