DECAN P 150 – Para Pharma

🔬 Definition & Pharmacology

Nandrolone phenylpropionate is an ester of nandrolone, classified as an anabolic-androgenic steroid (AAS).
Because of its high anabolic and relatively mild androgenic activity, it promotes muscle growth with fewer androgenic side effects.
Moreover, it has progestogenic properties, which can both enhance recovery and cause specific hormonal effects.

💊 Medical Use

Medically, npp was prescribed for conditions such as:

• Breast cancer therapy in women.
• Postmenopausal osteoporosis treatment.
• Severe cachexia and muscle wasting.

However, its medical use has largely been discontinued and replaced by other compounds.

🏋️ Bodybuilding Applications

In bodybuilding, nandrolone phenylpropionate is valued for its ability to build lean mass, improve nitrogen retention, and accelerate recovery.
In addition, athletes appreciate its joint-soothing properties, which may reduce pain during heavy training.
Typical dosages range from 200–600 mg per week, divided into multiple injections due to its shorter half-life.
Nevertheless, this usage remains non-medical and illegal in most countries.

⚠️ Side Effects

Potential side effects of npp include:

• Water retention and bloating.
• Suppression of natural testosterone production.
• Gynecomastia due to progestin activity.
• Acne, oily skin, and hair growth (milder compared to testosterone).
• In women: virilization such as deepened voice or menstrual irregularities.

Therefore, responsible use and post-cycle therapy are considered essential among bodybuilders.

🚫 Doping & Detection

NPP is listed as a prohibited substance by the World Anti-Doping Agency (WADA).
Unlike some oral steroids, NPP is injectable and detectable in urine through its main metabolite 19-norandrosterone.
Consequently, athletes who misuse it face long detection windows and risk competition bans.

📚 References

• PubChem: Nandrolone Phenylpropionate
• Wikipedia: Nandrolone Phenylpropionate
• WADA – Prohibited List