Potassium is recognized to increase power as well as vitamin B6 is understood to boost manufacturing of serotonin and also dopamine. Provigil might reduce the effects of contraceptive pill in addition to implantable formulas such as Norplant and also Depo-Provera. John's Wort on stress and anxiety as well as clinical depression, and also is harmless. First, there is transient insomnia.