Package: 1 vial (100mg/ml 10ml)

Active Substance: Nandrolone Phenylpropionate

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Nandrolone Phenylpropionate, also known as NPP, is an injectable anabolic steroid produced by Genetic Pharmaceuticals. It is highly valued in the world of medicine and bodybuilding for its muscle-building properties and therapeutic benefits. This guide will cover the essential aspects of Nandrolone Phenylpropionate, including its indication, contra-indications, administration, medical action, precautions, side effects, overdosage, and conclusion. Understanding these elements will help users make informed decisions about incorporating this powerful steroid into their health and fitness regimens.


Nandrolone Phenylpropionate is primarily indicated for treating conditions that cause muscle wasting and significant weight loss. It is used to manage anemia of renal insufficiency, where it stimulates the production of red blood cells, improving oxygen delivery to tissues. It is also prescribed for patients with osteoporosis to increase bone density and reduce the risk of fractures. In addition, NPP is used to treat severe burns, chronic infections, and after major surgeries to promote tissue repair and recovery.

In the realm of bodybuilding and athletics, Nandrolone Phenylpropionate is used off-label to enhance muscle mass, strength, and physical performance. Its anabolic properties make it a popular choice for athletes looking to gain lean muscle and improve recovery times between intense training sessions.


Nandrolone Phenylpropionate is not suitable for everyone. It is contraindicated in individuals with prostate cancer or breast cancer, particularly in men with known or suspected androgen-sensitive conditions. People with severe liver or kidney disease should avoid using this drug, as it can worsen these conditions. NPP is also contraindicated in individuals with hypercalcemia, as it can further elevate calcium levels in the blood. Pregnant or breastfeeding women should not use this steroid due to potential risks to the fetus or infant. Additionally, anyone with known hypersensitivity to Nandrolone or any of its components should not use this medication.


Nandrolone Phenylpropionate is administered via intramuscular injection. The dosage varies based on the individual’s medical condition, goals, and response to therapy. For therapeutic purposes, the typical dose ranges from 50 to 100 milligrams per week. For bodybuilding and athletic enhancement, dosages can range from 200 to 400 milligrams per week, divided into two or more injections. It is recommended to start at the lower end of the dosage spectrum to assess tolerance before considering higher doses.

NPP has a shorter half-life compared to its counterpart Nandrolone Decanoate, necessitating more frequent injections, usually every two to three days, to maintain stable blood levels. Cycle lengths typically range from 8 to 12 weeks. Adhering to the prescribed dosage and administration guidelines is crucial to achieving the desired effects while minimizing the risk of side effects.

Medical Action

Nandrolone Phenylpropionate works by enhancing protein synthesis and nitrogen retention in muscles, which are critical for muscle growth and repair. It also increases the production of red blood cells, improving oxygen delivery to tissues and enhancing endurance and recovery. One of the key benefits of NPP is its ability to increase collagen synthesis and bone mineral content, strengthening bones and connective tissues. This makes it particularly useful for athletes who place significant stress on their joints and ligaments during training.

NPP has a relatively low rate of aromatization into estrogen, which means it is less likely to cause water retention and gynecomastia compared to other anabolic steroids. Its anabolic to androgenic ratio is favorable, providing significant muscle-building effects with fewer androgenic side effects.


Using Nandrolone Phenylpropionate requires several precautions to ensure safe and effective use. Regular monitoring of liver and kidney function is essential, as prolonged use can strain these organs. It is important to keep track of cholesterol levels, as NPP can negatively impact lipid profiles, increasing the risk of cardiovascular issues. Maintaining a healthy diet and exercise regimen is crucial to support overall health and minimize potential risks. Users should avoid alcohol and other hepatotoxic substances while using this steroid. Consulting with a healthcare provider before and during use is highly recommended to ensure safe administration and monitor any potential side effects. Proper sterile injection techniques should be used to prevent infections.

Side Effects

As with all anabolic steroids, Nandrolone Phenylpropionate can cause side effects. Common side effects include acne, oily skin, and increased body hair growth due to its androgenic properties. Some individuals may experience hair loss if they are genetically predisposed to male pattern baldness. NPP can also cause water retention and high blood pressure, which can increase the risk of cardiovascular problems.

Androgenic Side Effects

The androgenic side effects of NPP include acne, oily skin, and increased body hair. Women using NPP may experience virilization symptoms, such as deepening of the voice, increased body hair, and menstrual irregularities. Although NPP has a relatively low rate of aromatization, it can still cause androgenic side effects like aggression and mood swings.


Overdosage of Nandrolone Phenylpropionate can lead to severe health complications. Symptoms of overdose may include severe headaches, nausea, vomiting, liver pain, and jaundice (yellowing of the skin or eyes) due to liver damage. Prolonged or excessive use can cause irreversible side effects such as liver tumors or significant cardiovascular issues. If an overdose is suspected, immediate medical attention is crucial. Adhering to the prescribed dosage and cycle length is essential to avoid the risk of overdose and associated health issues. Users should never exceed the recommended dose or extend their cycle length without consulting a healthcare professional. Regular monitoring and responsible use are key to preventing overdose and its serious consequences.


Nandrolone Phenylpropionate from Genetic Pharmaceuticals is a powerful injectable anabolic steroid known for its significant benefits in muscle growth, strength enhancement, and overall physical performance. Its unique properties make it particularly effective for those looking to gain lean muscle mass and recover faster from intense workouts. However, due to its potential side effects and health risks, it should be used responsibly and under the guidance of a healthcare professional.

By following proper dosage guidelines, taking necessary precautions, and monitoring health parameters, individuals can achieve significant benefits from Nandrolone Phenylpropionate while minimizing risks. Always consult with a healthcare provider before starting any steroid regimen to ensure it is appropriate for your health and fitness goals. Overall, Nandrolone Phenylpropionate offers a balanced and effective solution for those looking to enhance their physique and performance, provided it is used responsibly and with proper medical supervision.

In conclusion, Nandrolone Phenylpropionate is a valuable tool in the arsenal of athletes and bodybuilders. Its unique properties and effects make it a powerful addition to any muscle-building or performance-enhancing regimen. By understanding its indications, contra-indications, administration, medical action, precautions, side effects, and the importance of avoiding overdosage, users can make informed decisions and optimize their results. Always prioritize health and safety, and consult with a healthcare professional to ensure the best possible outcomes while using Nandrolone Phenylpropionate.


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