some guys will tell you that propecia taken with a nandrolone will strip your hair. it didn't for me. actually it kept me from shedding.
the only side i've heard of is some bloat and sometimes gyno...i have never had any sides from any sort of nandrolone but yes...being that it is a fast ester it should be out of your system fairly quickly.
I absolutely swore off nandrolone until I recently tried NPP. I am taking proviron, aromasin, masteron, EQ, Test with it and have experience absolutely no gyno whatsoever.. NPP has quickly become one of my favorites!!!