I have tried taken niachin(150mg) + vitamin d3(1000ui) before sex on two occasions and both times I found it reduce my POIS symptoms and I didnt have depression immediately after orgasm, I tried just take niachin and I had depression immediately after or even during orgasm. But combo with vitamin d3 seem to make a difference, but its only 2 times I tried this combo so could be other factors.
Have anyone also had success with this combo?
?would love to hear some thought on why it might work.
Thanks