"The use of Nandrolone Phenylpropionate will suppress natural testosterone production. As with all Nandrolone compounds, one injection will suppress nearly if not all your natural testosterone production. Your genetics will not prevent this and it is something that’s completely unavoidable with use. Because of this fact, it is imperative that all men who use this steroid do so in conjunction with some form of exogenous testosterone. This will prevent the individual from falling into a low testosterone condition, which comes with a host of very undesirable symptoms.
Once the use of Nandrolone Phenylpropionate has been discontinued and all anabolic steroids have cleared the body, natural testosterone production will begin again. However, it will not occur overnight and will come slowly. Post Cycle Therapy (PCT) is recommended. This will help stimulate the production of natural testosterone and increase the odds of a successful recovery. PCT will not complete recovery, it will still take several months post PCT, but it will give you a better start."