Quote Originally Posted by dragon69
wonder how you guys compare the sides of deca and tren. Suppression, Libido, progesterone and prolactin sides are what I'm primarily concerned with.

I am doing tren now and sides are almost nothing. I know deca is extremely suppressive but so is tren, and both are progestins so really curious to see how much difference there is. I may use Nandrolone PP in a cycle coming up if it's not too bad.
I get the impression that everyone thinks you are going to combine the two, which is very strongly not recommended. But I think you are asking if the sides you would get from NPP are worse than tren sides. The answer is no, tren is one of the nastiest AAS out there for sides, many users quit tren or have to go to very low doses to tolerate the sides. IMO if you are having little or no trouble with tren then NPP should be no prob for you. I just wouldn't recommend running them together.