Hello, how much time you need to use nandrolone for increase weight and muscle? Is good to combine it with testosterone?
At least 8 weeks. Nandrolone decreases your own testosterone, so it is suggested you use it with testosterone.
More in my old book:
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Do not use nandrolone or testosterone without proper medical supervision. Here are some potential side effects:
Testosterone and Nandrolone- Side Effect Management