Nandrolone is a popular AS that comes in the forms Decanoate and phenylpropionate. Nandrolone Decanoate-shaped, known as nandrolone Decanoate (the slang name “Deca”), is a more popular AS and it is found to be much more common than nandrolone in the form of phenylpropionate (nandrolone phenylpropionate). So in this article we will mainly talk about the nandrolone Decanoate.

Deca is considered a classic anabolic steroid. The practice of its use began in the 60ies of the last century. In this regard, this drug is well studied and has many recommendations about its correct, competent application.

Like many anabolic steroids, Deca was developed for use in medicine for faster recovery of damaged tissue after surgery, injury, etc. Over time, the properties of the Nandrolone was spotted by sportsmen, and gradually it gained popularity and fame in the gym.

The difference between nandrolone decanoate and nandrolone phenylnandrolone propionate

Due to the fact that the active substance in these drugs is the same (nandrolone), the effects of them are very similar. The main difference between them is the half-life: Deca – 7-10 days, and nandrolone phenylpropionate-2-4 days.

Nandrolone phenylpropionate has the following features and differences from the deca:

  • holds up less water;
  • it has the same side effects as the Decanoate, but the frequency of their occurrence is lower;
  • the frequency of injections is higher (every 3-4 days);
  • own testosterone is rebounding a bit faster, than after deca.

All other effects and characteristics are approximately the same like nandrolone decanoate.

Nandrolone phenylpropionate is usually can be combined with other AS. Weekly dosage the same as that of the deca (200-400 mg), but the injection frequency is higher (every 3-4 days, the average dosage for a single injection – 50-100 mg). Usually nandrolone phenylpropionate is combined with Winstrol, turinabol, methandrostenolone and testosterones (propionate/enanthate).

Deca steroid

Deca acts slowly, so the mass bulking occurs gradually. Athletes who practice nandrolone note good muscle growth, a significant increase in strength and endurance. On average, for the cycle athletes gain up to 6-8 kg of meat.

Retabolil detains water in the body. This reduces pain / discomfort in the joints and ligaments (for example: eliminates crunch and discomfort in the shoulder joints). Also, this drug helps to strengthen the immune system and bone tissue, increases the amount of red blood cells, which improves the transport of oxygen throughout the body. It should be noted that Deca is almost non-toxic to the liver.

Unlike testosterone, Deca does not have a carbon atom in position 19, so the androgenic effect of this drug is significantly less than that of testosterone-based drugs. Usually athletes do not conduct solo cycle of nandrolone. This is because of a decrease in libido, suppression of testosterone levels, etc. Most often retabolil combined with testosterone or Winstrol (the latter has antiprogesterone activity).

Deca Durabolin cycle

Period of retabolil activity is 15 days, so the injections are usually performed 1 time per week. The average optimal dose of nandrolone is 200-400 mg per week (for beginners enough 200 mg). Sometimes athletes exceed the recommended dosage, but with them increases the frequency and strength of side effects.

The optimal length of the cycle is 8 weeks. When exceeding this line (or large dosages) should be used gonadotropin, which must be injected after the 4th week of the cycle and input 2 times a week at a dose of 250-500 IU.

Just do not forget to add during your cycle a cabergoline (take 0.25 mg every 4th day, starting with the 2nd and ending 3 weeks after the last injection). This will allow you to eliminate progesterone activity.

PCT after deca

In the last week of the cycle and during the next 3-4 weeks it is necessary to add clomid, it helps to restore the level of testosterone. Take 50-100 mg per day, gradually reducing the dosage.

Do not forget that tamoxifen on the PCT after the deca can not be used. Also, nandrolone can not be combined with other progestins (trenbolone, anadrol, anapolon).

To get the maximum effect from the use of AS, you need to eat right and stick to the regime. It is also desirable to consume sports supplements: protein, weight gainer, creatine, vitamin-mineral complexes, amino acids, BCAA etc. During PCT additionally take testosterone boosters.

Deca Durabolin side effects

Deca does not aromatize, but in small quantities (4-5 times less than testosterone) is still converted into estrogens. Periodically, the athletes noted an increase in the pressure, acne and headaches.

Retabolil has progestogenic activity, which with a reduced amount of testosterone, entails a number of unpleasant side effects, such as:

  • weak erection / deterioration of libido (among athletes known as “Deca dick”). For recovery is needed approximately 3-4 weeks);
  • Gynecomastia obtained through the use of nandrolone is different from the “standard gynecomastia”: it is not itchy, so it usually does not cause concern. You can identify it with the touch, as around the nipples is observed compaction and swelling.

In order to minimize side effects, prolactin inhibitors such as bromocriptine or cabergoline should be used. Cabergoline is more modern and safer, if you do not sure what to choose.

The website of provides information only for informational purposes. "IronSet" does not sell and does not call for use of potent substances, including anabolic steroids. This information is collected from public sources and can not serve as a basis for deciding on the use of certain drugs. The information presented on the website does not call for the use or distribution of potent substances.


Andrey is a coach, sports writer and editor. He is mainly involved in weightlifting. He also edits and writes articles for the IronSet blog where he shares his experiences. Andrey knows everything from warm-up to hard workout.

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