Garlic works well for me, reducing symptoms. There is a lot on the forum about garlic. I take one pill of garlic extract with dinner, then ejaculate around 20min to half an hour later. Then I also take garlic pills for a few more days.
More interesting is the vasodilator viagra. My premature ejaculation is so strong, I didn't manage to penetrate last few times when I had the chance. So, next time I have the occasion (I have no idea when that will be), I will definitely try viagra. It is occasionally mentioned in the forum here and there, but not too much. It is supposed to really open up all the blood vessels in the pelvic area.