Trade Name: Durabolin, Others

Other Names

  • NPP
  • Nandrolone phenpropionate
  • 19-Nortestosterone phenylpropionate
  • Nandrolone hydrocinnamate
  • 19-Nortestosterone 17β-phenylpropionate
  • NSC-23162

Legal Status

  • AU: S4 (Prescription only)
  • CA: Schedule IV
  • UK: Class C
  • US: Schedule III

Half Life

  • Intramuscular: 2.7 days
  • Nandrolone: <4.3 hours

Duration of Action

  • Intramuscular: 5–7 days

Formula: C27H34O3
Molar mass: 406.566 g·mol−1

Overview And History Nandrolone Phenylpropionate

Nandrolone Phenylpropionate is a common anabolic steroid that is quite similar to Nandrolone Decanoate. Nandrolone Phenylpropionate, on the other hand, was the first Nandrolone chemical to be commercially marketed. Nandrolone Phenylpropionate first appeared on the market in the 1950s, when Organon introduced it as Durabolin. Soon later, Organon would release Deca Durabolin, a Decanoate.

Nandrolone Phenylpropionate, also known as NPP, is a minor ester-based anabolic steroid. This substance has never been as popular as the bigger ester Decanoate variant, owing in part to scarcity; nevertheless, in the present period, it has seen a comeback in both use and availability, thanks in part to underground labs.

Nandrolone Phenylpropionate has several therapeutic and performance advantages. Other than testosterone, the Nandrolone hormone is the most usually prescribed anabolic steroid, while the Decanoate form is the most commonly given Nandrolone form. Although some adverse effects may occur, it is one of the most well-tolerated steroids in both performance and medicinal situations.

Nandrolone Phenylpropionate has several therapeutic and performance advantages. Other than testosterone, the Nandrolone hormone is the most usually prescribed anabolic steroid, while the Decanoate form is the most given Nandrolone form. Although some adverse effects may occur, it is one of the most well-tolerated steroids in both performance and medicinal situations.

Chemistry Behind Nandrolone Phenylpropionate

Nandrolone Phenylpropionate is an anabolic androgenic steroid derived from 19-nortestosterone (19-nor). The 19-nor classification refers to a structural alteration in the testosterone hormone in which the carbon atom at the 19th position has been eliminated.

We get Nandrolone from this simple structural alteration, and we get Nandrolone Phenylpropionate by adding the short Phenylpropionate ester.

Nandrolone Phenylpropionate is the same as Nandrolone Decanoate in terms of hormone action. Both versions contain the same active hormone. In the case of NPP, there is a shorter ester form that provides a bigger burst of Nandrolone after injection but has a significantly shorter half-life.

If blood levels are to remain steady, Nandrolone Phenylpropionate must be injected more frequently than its bigger ester equivalent.

Nandrolone Phenylpropionate is somewhat more anabolic than testosterone, having a value of 125 vs 100 for testosterone. It is also substantially less androgenic, with a value of 37 against 100 for testosterone.

The decreased androgenicity is due to the Nandrolone hormone converting to dihydro nandrolone (DHN) rather than dihydrotestosterone (DHT). This is one of the reasons why Nandrolone Phenylpropionate is tolerated better in certain men than greater levels of testosterone.

Characteristics and Function

Nandrolone Phenylpropionate is an anabolic androgenic steroid derived from 19-nortestosterone (19-nor). The 19-nor classification refers to a structural alteration in the testosterone hormone in which the carbon atom at the 19th position has been eliminated. We get Nandrolone from this simple structural alteration, and we get Nandrolone Phenylpropionate by adding the short Phenylpropionate ester.

Nandrolone Phenylpropionate is the same as Nandrolone Decanoate in terms of hormone action. Both versions contain the same active hormone. In the case of NPP, there is a shorter ester form that provides a bigger burst of Nandrolone after injection but has a significantly shorter half-life. If blood levels are to remain steady, Nandrolone Phenylpropionate must be injected more frequently than its bigger ester equivalent.

Nandrolone Phenylpropionate is somewhat more anabolic than testosterone, having a value of 125 vs 100 for testosterone. It is also substantially less androgenic, with a value of 37 against 100 for testosterone. The decreased androgenicity is due to the Nandrolone hormone converting to dihydro nandrolone (DHN) rather than dihydrotestosterone (DHT). This is one of the reasons why Nandrolone Phenylpropionate is tolerated better in certain men than greater levels of testosterone.

Nandrolone Phenylpropionate has a lower estrogenic profile than testosterone. Nandrolone and testosterone both aromatize, however Nandrolone aromatizes at only about 20% of the rate of testosterone.

Important Note: Nandrolone Phenylpropionate has a progestin character, which contributes to the hormone's adverse effects.

Nandrolone Phenylpropionate shares many beneficial characteristics with several anabolic drugs. This molecule, however, has functional properties that much surpass what some steroidal hormones can achieve. Nandrolone Phenylpropionate's good functional characteristics include:

Increased IGF-1 Production: Insulin-Like Growth Factor-1 (IGF-1) is a powerful anabolic hormone that is also required for our bodies to heal. This is a hormone that has an impact on practically all cells in the human body.

Glucocorticoid Inhibition: Also known as stress hormones (cortisol), these hormones are critical to our health and well-being. When glucocorticoids become dominant, they might cause muscle loss and fat accumulation. Exercising vigorously might cause an increase in stress hormones. Stress hormones can be reduced by hormones such as Nandrolone.

Increased Nitrogen Retention: Nitrogen makes up about 16 percent of all muscle tissue. If retention decreases, we enter a catabolic condition. The more we keep, the more anabolic we are.

Protein Synthesis: This relates to the pace at which cells produce proteins, which are the building blocks of muscle tissue.

Increased Red Blood Cell Count: Red blood cells transport oxygen into and out of the body. Increased efficiency leads to improved muscle endurance and recovery.

Increased Collagen Synthesis and Bone Mineral Content: This relates to the strength of bones and cartilage, as well as their capacity to strengthen and repair. This will be more true in joints than everywhere else.

Important: It is commonly stated that Nandrolone drives water into the joints, offering relief. This is not physically possible. It is not water that brings comfort, but rather an increase in collagen production and bone mineral content.

Nandrolone Phenylpropionate is also used in a variety of medicinal treatments. Although Nandrolone Decanoate is more regularly utilized, Phenylpropionate is still used on a daily basis. Nandrolone Phenylpropionate has been shown to be effective in the treatment of the following conditions:

  • Cancer, HIV, and other muscle-wasting diseases
  • Geriatric Weakness and Fatigue Anemia Treatment
  • Cancer of the Breast
  • The Care of Burn Victims
  • Ulcers
  • Pituitary Dwarfism Growth Children's Retardation Osteoporosis

Despite a plethora of advantages and uses, Nandrolone is mainly exclusively recommended for HIV, AIDS, and anemia in the United States. Its success rate in other areas is high, although it is mainly used in such fields of medicine outside of the United States. Some physicians in the United States have begun to prescribe it for anti-aging purposes, although it still accounts for a relatively tiny percentage of overall prescriptions.

Effects of Nandrolone Phenylpropionate (NPP)

Now, let's look at how NPP might benefit performing athletes. A performing athlete would normally undergo a bulking cycle in the offseason, and NPP is an excellent steroid for this period.

If you're looking for a bulk builder that many bodybuilders rely on, this one delivers. While it acts quickly, the development will be slow. Remember that you'll need to consume enough calories to develop properly.

NPP advantages will be maximized if you eat appropriately. In addition, adding Nandrolone Phenylpropionate to your bulking phase regimen will make recuperation from training and injuries simpler.

However, it is more known as a bulking steroid than a cutting steroid. It will protect you from losing lean muscle mass when used for cutting. Unfortunately, as we begin to thin down during the cutting stages, we risk losing both muscle tissue and fat.

This steroid will help to preserve the muscular tissue that bodybuilders work so hard to maintain. NPP may be ideal for you if you desire excellent joint pain treatment and healing. There is always a drawback to using steroids. As previously stated, this steroid is well tolerated by many people.

Side Effects Nandrolone Phenylpropionate

Nandrolone Phenylpropionate has several potential adverse effects, however, it is also one of the least harmful. Understanding how side effects arise and using the hormone correctly are the keys to managing and avoiding them. Serious adverse effects should be preventable for the vast majority of males. To help you understand the adverse effects of Nandrolone Phenylpropionate, we've divided them into categories.

Nandrolone Phenylpropionate may have estrogenic side effects. Gynecomastia, water retention, and elevated blood pressure produced by significant water retention are all estrogenic adverse effects of Nandrolone Phenylpropionate. These adverse effects can be prevented by using an Aromatase Inhibitor (AI) such as Anastrozole (Arimidex). The Nandrolone is to blame for the estrogenic side effects.

Nandrolone Phenylpropionate may cause androgenic adverse effects in males, however, these are unlikely. Important: Using a 5-alpha reductase inhibitor will not diminish Nandrolone's androgenicity; in fact, it will enhance it and should be avoided.

The Nandrolone hormone, while not very androgenic, can cause virilization symptoms in women. Some women can tolerate modest dosages without incident, but if symptoms develop, usage should be stopped promptly.

Nandrolone Phenylpropionate has a detrimental influence on HDL cholesterol (good cholesterol), which is somewhat more than testosterone.

It is entirely feasible to utilize Nandrolone Phenylpropionate without experiencing any cholesterol or cardiovascular concerns, but a healthy lifestyle is required.

Natural testosterone production is suppressed when Nandrolone Phenylpropionate is used. As a result, all men who utilize this steroid must do it in combination with some sort of exogenous testosterone. This will keep the individual from developing low testosterone, which is associated with a slew of unpleasant symptoms.

Natural testosterone production will resume once Nandrolone Phenylpropionate use has been terminated and all anabolic steroids have been eliminated from the body. However, it will not happen immediately and will take time.

PCT (Post Cycle Therapy) is advised. This will assist promote natural testosterone production and enhance the chances of a successful recovery. Recovery will still take many months after PCT, but it will get you off to a better start.

Important: Natural recovery presupposes that no harm was done to the Hypothalamic-Pituitary-Testicular-Axis (HPTA) during usage and that no previous low testosterone condition existed.

The liver is not affected by Nandrolone Phenylpropionate.

Cycles And Usage of Nandrolone Phenylpropionate

Male Nandrolone Phenylpropionate dosages in a medical environment are typically in the 50-100mg per week range. Although not typically recommended for female usage, if it is, it is usually in the 50mg per week range. Almost all medical settings will prescribe the Decanoate form.

Dosages for athletes and bodybuilders might vary substantially. 100mg per week will give considerable therapeutic benefit, with 200mg per week being more usual to assure greatly enhanced recovery. The standard dose range in most performance circles is 300-400mg per week, which is ideal for growing or retaining muscular tissue. Some people will use more, but this raises the risk of negative effects.

For best outcomes, regardless of the amount, the complete dose is generally divided into three equal injections each week or planned out on every other day basis. Most athletes will utilise a product for 8 to 12 weeks. Female athletes, on the other hand, may utilize the steroid for 4-6 weeks and at a dose of no more than 50mg per week to avoid virilization.

How To Buy Nandrolone Phenylpropionate

People can also purchase NPP online. Yes, it is illegal in the United States, yet people still buy it. In the United States, it is classified as a prohibited drug (Schedule III).

We're sure you're concerned about breaching the law. As a result, we recommend you look for legal steroid alternatives. Many of them are excellent and provide fantastic, steroid-like advantages without the steroid drawbacks.

Legal steroid substitutes are carefully designed to provide users with similar effects as NPP and other anabolic steroids. Legal steroid alternatives have gone a long way, with the majority causing minimal or no negative effects. They are legal to purchase online, they are usually inexpensive, and they are meant to assist bodybuilders to reach their training goals all year round.

You'll be able to make an informed choice about whether or not Nandrolone Phenylpropionate is appropriate for you now that you've had the inside scoop. It is, in our opinion, one of the safest and most well-tolerated steroids. However, it is not legal for sale in many regions, which is a huge disadvantage.

This popular anabolic steroid is only available by prescription and will most likely always be. It is designed to aid bodybuilders who are bulking or cutting. It will provide the same benefits as NPP without the drawbacks.

The Legality of Nandrolone Phenylpropionate (NPP)

NPP is illegal in the United States unless recommended by a registered physician for medical reasons. Those seeking NPP frequently turn to underground labs. So, no, purchasing this anabolic steroid in the United States is not legal. Its global supply is quite limited. Nandrolone Decanoate is really simpler to get by. Nandrolone Decanoate is often more expensive when purchased from underground laboratories. It is prudent to seek out a legal steroid substitute that is intended to mirror the benefits and qualities of Nandrolone Phenylpropionate.

Any Latest/Positive Research on Nandrolone Phenylpropionate

The Nandrolone hormone is without a doubt one of the most useful anabolic steroids available; it ranks in the top five. Medically, it's a fantastic hormone, however, the Phenylpropionate form has never been given its full potential. This is not due to its inferiority; rather, the medical world does not require more than one Nandrolone hormone, and Decanoate is the one chosen.

This steroid is almost vital to an off-season mass strategy for steroid users. However, when it comes to rehabilitation and healing, it is nearly in a league of its own. When combined with its low side effect profile, this steroid is difficult to surpass.

However, there is one critical issue that has yet to be addressed: erectile dysfunction. Nandrolone, sometimes known as "Deca Dick," is widely recognized for producing erectile dysfunction. It is not the hormone's fault; it is the result of incorrect usage. Erection function can be reduced by progestin and hormones that can create prolactin. Keep your hormone levels in check and you won't have any problems.

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