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Nandrolone Phenylpropionate steroid profile

Examining Nandrolone Phenylpropionate – A Short-Acting Injectable Steroid

Here is a very extensive profile on the anabolic steroid Nandrolone Phenylpropionate

Background and History

Nandrolone Phenylpropionate is a short-acting esterified variant of nandrolone. It was first developed in the 1950s under the trade name Durabolin and was used for treating conditions like osteoporosis and breast cancer. It remained obscure compared to longer-acting nandrolone esters.

Nandrolone Phenylpropionate steroid profile
Nandrolone Phenylpropionate steroid profile

In the 1970s, bodybuilders began using Nandrolone Phenylpropionate when short-acting nandrolone compounds became favored for cycling flexibility and fast results. Today it remains available from underground laboratories and networks catering to performance enhancement circles.

Chemical Structure

Nandrolone Phenylpropionate consists of the anabolic steroid nandrolone affixed to a short phenylpropionate ester on the 17-beta hydroxyl group. This ester extends the release of nandrolone for up to 4 days after injection. The properties of the nandrolone hormone remain unchanged.

Composition and Mechanism of Action

Nandrolone Phenylpropionate belongs to the family of anabolic steroids and is characterized by its specific ester, phenylpropionate. This modification affects the rate at which the hormone is released and metabolized in the body. NPP works by binding to androgen receptors in muscle tissue, stimulating protein synthesis, enhancing nitrogen retention, and promoting muscle growth. It also has mild androgenic effects compared to testosterone.

Dosages and Cycles

Common dosages of Nandrolone Phenylpropionate are 100-200mg every other day. Cycles range from 6 to 12 weeks in length, often stacked with other compounds. The short ester requires frequent injections to maintain stable blood hormone levels. Doses exceeding 200mg per injection may increase side effects.

Potential Benefits of Nandrolone Phenylpropionate

Users of NPP typically aim to experience various potential benefits, including:

Muscle Growth: NPP promotes the synthesis of muscle proteins, leading to increased muscle mass and size.

Enhanced Recovery: It may help accelerate the recovery process, reducing muscle damage and soreness after intense workouts.

Joint Health: NPP is often praised for its potential to alleviate joint pain and improve joint function due to its positive impact on collagen synthesis and water retention.

Increased Strength and Performance: Users may experience improvements in strength, power, and athletic performance, which can be beneficial for athletes and bodybuilders.

Boosted Red Blood Cell Production: NPP has been associated with increased red blood cell production, leading to improved oxygen delivery and endurance.

Other effects include boosts in collagen production for joint relief, increased bone density, heightened RBC count for enhanced muscular endurance, and reduction of catabolic glucocorticoid hormones.

Side Effects and Health Risks

Possible side effects may include:


      • Androgenic effects like oily skin, acne, and body hair growth

      • Mild estrogenic activity

      • Cholesterol alterations

      • Testosterone suppression

      • Cardiovascular strain

      • Liver toxicity at high doses

    Short cycle lengths are recommended. Post cycle therapy is important following use. Overall, nandrolone poses fewer side effects than most steroids when used properly.

    Legal Status

    Nandrolone Phenylpropionate is categorized as a DEA Schedule III controlled substance in the U.S., UK, Canada and many other countries. It is prohibited for sale or use without an appropriate prescription. Underground manufacturing and trade continues to defy prohibition.
    In summary, Nandrolone Phenylpropionate is valued by some athletes for its combined rapid action and mild side effect profile. However, its illicit status necessitates assuming all legal risks.


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