I never recommend running both. It can be difficult for most to control the sides correctly with that much nandrolone unless experienced enough to know what your body needs and how it reacts to each compound individually
Is it good on cycle? No. Is it going to keep you from gaining? Also no. Your best bet is not doing it for optimal results but I also wouldnt let a cycle dictate how I live my life either. Be sensible and moderate in all things. Find your own balance like so many have so you can enjoy your life...