@teachols
I would NOT take this supplement while on venlafaxine (generic name for Effexor).

RxList says, "St. John's wort oral, 5-hydroxytryptophan (5-htp) oral and venlafaxine oral increase affecting serotonin levels in the blood. Too much serotonin is a potentially life-threatening situation. Severe signs and symptoms include high blood pressure and increased heart rate that lead to shock."

I experienced serotonin syndrome when both my regular doctor and breast reconstruction surgeon ignored that I was on 25mg of Effexor and had me take other drugs that interacted with Effexor (dextromethorphan and fentanyl). It took a couple of days of being on all these drugs at the same time for the whammy to hit me, but the worst aspect of this was the extreme fear of any and everything (I knew there was nothing to be afraid of, but knowing made no difference) and agitation/restlessness/unable to keep from pacing (akathisia). I had no idea that these drugs interacted with Effexor and I suspect that my doctors thought since I was only on 25mg that interaction was unlikely!

Your taper is too much too fast. Try going back to the higher dose and see if your withdrawal symptoms ease. Stay there for a while (couple of weeks?) before tapering again to not so much less and stay there for some weeks before tapering again. You can also ask your doctor about a "Prozac bridge."

You can click on my name to read my previous posts about the Prozac bridge and to see the supplements I am taking (but I did NOT start any of these until I was OFF Effexor completely; the Lidtke tryptophan I take is definitely NOT something to take while on Effexor).

That looks like a really good supplement -- it has ingredients that most supplements don't have. I just used regular high-dose vitamin/mineral supplements and added separate pills for specific vitamins and minerals so I could amplify those. I know we don't do any prescribing here, but if it's ok, would you mind sharing the name of this supplement? Thanks!