Deca was horrible for me, of course i used it alone at the time. But using it alone showed me what the drug is capable of side effects wise. I will definitely not use any Progesterone deirved drugs ever again, and have not since.
Deca gave:
1. Extreme facial bloat, to the point some people did not recognise me from a couple feet away.
2. Made me completly impotent, my sex drive was at 0%.
3. The second point gave me years of insecurity about me gettign erections because i thought there ws something wrong with me. At the time i did not realise Deca's evil side as all the publications touted it as a wonder drug.
4. strenght and size gains were very mediocre, nothing special at all.
5. It shut me down so hard, i had low test for about 8 moths.
Now i may be a special case but it shows you the potential of a progesterone derived drug in the Male body. I only stick to test.