NPP is an injectable steroid which contains 150 mg the hormone Nandrolone Phenylpropionate, which is chemically related to the male hormone. Its difference to Nandrolone Decanoate is reflected in the speed in which Nandrolone is released into the blood. Many times bodybuilders and athletes prefer NPP to Decanoate products in order to achieve faster the effect of muscle growth. NPP has an enhanced anabolic and a reduced androgenic activity.
NPP has a strong anabolic effect, which assists the protein synthesis and allows the protein to be stored in the muscle cell in large amounts. It also has a moderate androgenic component which stimulates the regeneration and it helps maintain the muscle mass during a diet. NPP stores much less water in the body than Nandrolone Decanoate and is much more utilized in preparation for competitions. However NPP has the property to stay for a long time in the organism; traces of Nandrolone Phenylpropionate can be found in the human urine even after 18 months.
NPP must be injected frequently at regular intervals to ensure stable blood levels. The substance Nandrolone Phenylpropionate quickly gets into the blood stream and remains active for two to three days. The average dosage for a man is 300-600 mg per week and for a woman 50-100 mg, injected it every 2-3 days. For a bulking effect NPP is usually stacked with Testosterone and powerful oral compounds like Oxymetholone or Methandrostenolone. For a cutting cycle NPP is usually be combined with other short-estered injectable anabolic steroids and one of the DHT derived orals such as Stanozolol (Winstrol) or Oxandrolone (Anavar). A cycle of NPP is between 8 and 16 weeks, but in some cases it can be used even for a longer time.
NPP has a reduced number of negative side effects which usually emerge in cases of a prolonged and extra dosed utilization. Many of these side effects are less often than in case of Nandrolone Decanoate usage.
Female athletes should use a much lower dosage due to several virilization effects. Most common side effects of NPP are: water retention, high blood pressure, elevated estrogen level, oily skin, insomnia, diarrhea, and nausea, in some cases gynecomastia and sexual dysfunctions.