Nandrolone Phenylpropionate, shortly called NPP, is an injectable anabolic and androgenic steroid (AAS). The first and most popular brand is Durabolin, but it can be found as numerous other brands. The active substance is Nandrolone and Phenylpropionate is attached ester.
NPP is a 19-nor anabolic steroid. Is different from testosterone and dihydrotestosterone in the way it works. Nandrolone has more anabolic activity and less androgenic activity compared to them.
What is NPP Steroid?
Nandrolone Phenylpropionate (NPP) with brand Durabolin including many others is an injectable steroid. The 19-nor steroid has a short half life of 2-5 days due to Phenylpropionate ester added.
- It aromatizes into estrogen (20% of the rate compared to testosterone). As mentioned, has a higher anabolic and lower androgenic activity compared to base testosterone (125:37).
NPP is the first version of Nandrolone, created for medical purposes. It was designed to treat osteoporosis, breast cancer, and other health conditions. It was then discovered to be a very effective compound for growing muscle mass. That’s why Nandrolone is very popular among bodybuilders and performance athletes.
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NPP vs Deca
NPP shouldn’t be confused with Deca. They both contain Nandrolone as an active substance meaning they both work in the exact same way. The difference between the 2 is that Deca has Decanoate ester (sold as brand Deca Durabolin commonly, including others).
Deca Durabolin (Nandrolone Decanoate) shortly Deca seems to be more popular than Durabolin (Nandrolone Phenylpropionate) shortly NPP. Both in medical settings and the bodybuilding world. That’s because Deca has a longer half life meaning it should be administered less often.
NPP was the original Nandrolone version, but after Deca appeared, NPP got less popular. Yet, the Nandrolone hormone is working in the exact same way in both forms.
The difference is in the ester. How fast it works, how long it stays in the bloodstream, how often it should be administered, etc.
Although NPP should be administered more often than Deca, some people still use it. That’s because it has its own advantages over Deca. Some examples: faster results, shorter detection times, easier to control side effects, and others.
Nandrolone Phenylpropionate NPP Benefits
The benefits of NPP steroid are pretty much the same as with Deca. This is considered a bulking compound due to its ability to grow muscle mass and gain strength. However, NPP (unlike Deca) can still be used during a cutting cycle.
Nandrolone, generally, is known as a steroid that can enhance your steroid cycle effectiveness without enhancing the side effects from steroids even more. This AAS has amazing therapeutic effects including great benefits for physique and performance enhancement purposes. Some of them include:
- Amazing mass building
- Increases strength levels
- Preserves lean muscle mass
- Boosts recovery
- Strengthens your wrists and ligaments
There are many other benefits a person receives using Nandrolone.
Nandrolone would work offering all those results because it is known to help with various things.
Examples – reduce stress hormones; increase RBC count; boost protein synthesis; improve recovery; increase nitrogen retention and others.
NPP Administration
Because Nandrolone Phenylpropionate has a much shorter half life, most people use it every other day during a cycle to keep blood levels stable. Also, because it kicks in the system fast, there’s no need for very long cycle lengths.
Usually, cycle length with NPP is up to 10 weeks (6-8 weeks most commonly).
If you plan longer cycles, Deca is more recommended. Also, there’s no need to add oral steroids to kick-start the cycle.
- Usually, therapeutic benefits are seen at 100-200 mg weekly (30-50 mg EOD).
- Beginners and those using NPP for cutting go for 200-400 mg weekly (50-100 mg EOD).
- For bulking NPP is used in dosage of at least 300-400 mg weekly (70-100 mg EOD).
- Only professionals may use higher doses of around 700-800 mg of NPP weekly.
Nandrolone Phenylpropionate Side Effects
All steroids have a negative side effects risk profile and Nandrolone (NPP or Deca) is no exception.
As mentioned earlier, NPP has the advantage over Deca in that side effects are easier to control. You can feel the product work quicker, and you can adjust dosages as you need. Also, Nandrolone aromatizes into estrogen. But many people report receiving less water retention with NPP than Deca.
In the end, Nandrolone is well tolerated by most men. Of course – the higher the dosage (or longer cycle length) the more side effects are possible. Generally, Nandrolone side effects include:
- Androgenic side effects (but milder compared to other steroids)
- Testosterone suppression (suppression rate can be bad)
- Cholesterol issues (not really bad, but still capable to occur)
- Cardiovascular issues (then again, not really bad, but possible)
- Liver toxicity – Nandrolone is not hepatotoxic.
- Estrogenic side effects (very likely to occur)
You would need a PCT plan and aromatase inhibitors to mitigate the side effects of NPP.
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