After looking at the Alpha Male formula, there were a couple things that I noticed right away. The first thing was the 150mg increase in Eurycoma Longifolia over the Red Kat formula. This of course got me quite excited. The reason why is from the blood tests that I have seen, it appears that Red Kat is a little better at raising free testosterone levels then Tribex is. Therefore, given the amount of space in each pill, it is my belief that Biotest really hit the nail on the head by increasing the amount of Eurycoma.
The second thing I noticed was the fairly low dosage of Tribulus and of course the lack of Avena Sativa. Well, we all know that Red Kat and Tribex work through different mechanisms. Which lead me to believe that you are going to get one hell of a boost in free testosterone from your testicles, which is what the Red Kat formula works through. However, the boost from your pituitary gland which is what the Tribex formula works through, would leave a little to desire. This had me question whether or not you can stack Tribex with Alpha Male.
Well, instead of waiting for an answer on this forum, I decided I would call Biotest today to see if I could get an answer. Well, I did! I found out that it is ok to stack Tribex with Alpha Male for an even bigger boost in free testosterone. They recomended that you start out by adding one Tribex capsule with each serving of Alpha Male. If you don’t see any negitive side effects like headaches, dizziness, sleeplessness, and if you don’t turn into a 900lb hairy ass gorilla, then you can add another Tribex capsule into each serving of Alpha Male.
Pretty cool huh? 
Especially if you are like me and have five bottles of Tribex lying around your house.
Hopefully this info will help someone.