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Originally Posted by
vitor
High progesterone levels in men will kill libido(also prolactin buildup), if this happens it doesnt matter how much testosterone you have in your system. (Nadrolone is a noted progestin.)
Nadrolone is not effective at stimulating those nerve-cells responsable for erictile function(AAS like proviron and masteron is however), while testosterone is to, so you would be covered from that angle with the combination of test.
As for gains nadrolone is slightly more anabolic than test and binds about twice as strong to the androgen recepter. But this only goes for the AR, test has non ar meditaded mechanisms that Nadrolone doesnt have, also test gets reduced to a stronger androgen in DHT which also has some slight inpact on muscle grow.
I get more gains from test than nadrolone personally.