Testosterone/Tribex

I had a physical 8 mos ago and part of the physical was a testosterone level check. Mine was very low, so the Dr. prescribed testosterone for me to self inject to help raise my levels. I did it twice and my test. level is now avg. I have not injected any in the last 4 months. My question is that I want to start taking Tribex, a buddy of mine swears by it, so how much dosage should I take of Tribex if I have a large vial of testosterone that I can take as well? If it helps, I am 6’2", 195-200lbs, age 36. I think that my Dr. wanted me to take 20cc of testosterone 2x/month to raise my level, which I did and which it did. I am also taking MD6, six capsules/day. Thanks for your input.