Deca Durabolin Review

What is Deca Durabolin?

Deca Durabolin is the most famous and widely used brand (trade) name of the steroid Nandrolone that is coming with Decanoate attached ester. Any other product containing Nandrolone Decanoate is the same Deca Durabolin but sold as a different brand name and made by different manufacturing company.

For example, Kalpa Pharmaceuticals is offering the Nandrolone Decanoate as brand Nandroxyl 250, and you don’t only receive the exact same high quality steroid, but you’re able to save a lot of money too.


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Nandrolone is an androgenic and anabolic steroid, which is coming in form of an injection solution that is consisted of yellow oily clear solution, meant to be administered intramuscularly.

Nandrolone is also coming with the attached ester Phenylpropionate known as Nandrolone Phenylpropionate (NPP shortly) and most famous brand is Durabolin. Taken in consideration that Nandrolone Decanoate (Deca Durabolin or most often shortly called Deca) is a much longer esterified ester of Nandrolone, is also a most famous version.

  • Nandrolone esters are considered to be the most famous and widely used AAS for physique and performance enhancement and Deca Durabolin is also more famous and widely used in medical settings for patients with SA FDA but is not controlled in all countries. Legally, this substance should be used only for treating medical conditions, but this doesn’t seem to stop millions of athletes and bodybuilders all over the world to use it for various needs, especially when talking about bulking cycles.

Nandrolone steroid has been found extremely helpful at healing up the muscle tissues that were stressed during intense workouts, but in medical settings is given to patients with muscle loss conditions due to weaknesses, illnesses or various serious injuries. Nandrolone was found extremely helpful by those who already used it for increasing lean body mass, for boosting the creation of red blood cells, increasing bone mass, increasing joint health and various other positive effects.

The steroid Deca Durabolin (Nandroxyl 250) was proven for being extremely effective when talking about increasing cell nitrogen retention, for increasing synthesis of protein and lots of other beneficial effects makes Deca an amazing steroid for:


  • Huge growth of muscle mass
  • Enhanced strength levels
  • Boost energy and stamina
  • Helps with healing processes
  • Increases joint and bone health

The active substance in Deca Durabolin (Nandrolone Decanoate) is having an anabolic to androgenic ratio of 125:37 with some moderate aromatization, which means that it could convert into estrogen. It has unique abilities when talking about increasing performance and physical appearance making it such a famous steroid for bodybuilders.

What is Deca Durabolin Used For?

Deca Durabolin (Nandroxyl 250) seems to have quite a lot of different uses both in medical settings as well as for physique and performance enhancement. For example, this steroid is approved for the treatment of chronic kidney disease, for anemia, osteoporosis, postmenopausal symptoms in women, for preserving lean muscle mass in patients that are suffering from various wasting syndromes from HIV and AIDS or other causes. You may see doctors prescribing this powerful steroid to other patients with other health conditions.

In bodybuilding world, Deca Durabolin or simply Deca is considered an extremely effective bulking compound that is not too dangerous in terms of side effects. Deca is extremely rarely or never used in cutting cycles due to other better options for such purposes, but is extremely famous and widely used in bulking cycles, that’s why professional bodybuilders tend to use this anabolic steroid during their off seasons.


This is because Deca Durabolin (Nandrolone Decanoate) is having a slow acting nature, is aromatizable meaning that it would offer estrogenic activity (which is not good for cutting but important when bulking) and although not especially helpful for burning fat, is extremely helpful at boosting strength levels, boosting muscle growth, reducing weakness during and after an intense workout, reducing chances of injuries (because is great for bones and joints health) and aiding recovery and healing.

  • With this being said, it seems like the effects of Deca Durabolin would be pretty slow, but they are going to be very sustainable.

As much as we can notice, Deca Durabolin (Nandroxyl 250) is used for various different purposes but the final results of using Deca Durabolin greatly depends on various different factors such as your medical history, your tolerance, experience, dosage, your genetic make up, diet and workout program and various others.

  • In fact, it was recommended by many professional bodybuilders to add Deca Durabolin in a cycle stack rather than using it alone. According to professional steroid users, Deca is that steroid which can be added to a cycle highly boosting the efficacy and efficiency without increasing the risks of side effects. That’s why, most often, Deca Durabolin is combined with other steroids.

They suggest that it would be much better to add Deca to a steroid cycle in normal dosage, rather than increasing the other steroids’ dosage attempting to increase the effectiveness. Plus, Deca is the steroid that would have reduced side effects if testosterone is added.

The Effects of Deca Durabolin Cycle

Usually, Deca Durabolin cycle is offering crazy results when talking about growth of muscles and boosts in strength levels, but the effects of a Deca cycle highly depends on your dosage, body type, and various other factors. Also, it highly depends on either you add Deca Durabolin to a steroid or use it alone. Our recommendation is to stack it with other steroids, mainly is stacked with a form of testosterone (usually, also long form such as Testosterone Enanthate or Testosterone Cypionate) or also with Dianabol (Dbol).

This way, the effects of Deca Durabolin cycle would be much better in terms of effectiveness and they would be much less in terms of side effects because testosterone is going to make sure that it would reduce the possible side effects of Deca Durabolin (Nandroxyl 250).


Deca Durabolin is a powerful steroid, but is not crazy powerful as for example Trenbolone, this is the reason why you are most likely not going to notice as big effects in terms of muscle growth than other more powerful steroids, but in the same time, you won’t notice as worse side effects too.

How Does Deca Durabolin Affects Your Body?

Deca Durabolin might not be the strongest steroid in existence and is a slow acting one, nonetheless, is still one of the most famous steroids in the world for physique and performance enhancement purposes and is generally considered a legendary steroid. This steroid has been found to be extremely helpful for boosting bone mineral density as well as the synthesis of collagen all along with various other effects on your body. This is what makes Deca Durabolin so famous – the way it affects your body is extremely helpful for bodybuilders.

There are studies done on this compound, which prove that even a low dosage of Deca Durabolin is going to be great when reducing the joint pains as well as the tears of ligaments. In fact, this steroid is considered one of the best in existence for your joints and ligaments. Because Deca affects your body this way, a lot of bodybuilders add a low dosage of it even if they don’t actually need it only just to alleviate the pains.

But Deca is helpful for alleviating muscle pains too by boosting their recovery. In fact, there’s quite a lot of people who seem to say that Deca Durabolin is working similarly as pain killers, but they are not as toxic as they are. So the effects of Deca Durabolin (Nandroxyl 250) can be considered to be very similar to those of painkillers.

  • It also works by boosting protein synthesis and nitrogen retention with an overall increase in red blood cells and therefore, oxygen to your muscles is transported much easier and much more. That’s all required for an anabolic environment which is making you grow muscles and strength. That’s exactly what Deca Durabolin does.

Although the effects come slow because Deca Durabolin affects your body is a slow manner (slowly enters system, slowly gets flushed and slowly builds up in your system) – the compound is super effective. When the steroid would get built up in your body you’re going to see some real benefits and results.


What Does Deca Durabolin Do?

  • The muscle mass that you are capable to add with Deca is going to be times more compared to the muscles that you can add naturally. According to some people who already used Deca, they suggest that the first cycle with Deca Durabolin (when used properly) can offer gains of about 30 lbs or so.
  • Less pains – everywhere. Thanks to more red blood cells count and oxygen transported to muscles, your muscles would recover much faster making you be ready for the next intense workout much faster. Your muscles would get tired much harder too during the workout. This allows for more frequent and more intense workouts which, in results, offers more benefits.
  • Huge increases in strength. As soon as Deca Durabolin would be build up in your system, you can notice that you would be able to increase your maximum lifts soon. According to people with experience, at least 10% of maximum lifts would be added, but it could be even more, depending on various factors.


  • Deca Durabolin is the best thing for joints and ligaments health. They are much less likely to get injured during the intense workout when lifting very heavy weights. We all know that there are “gym injuries” when the person lifts so much weight that his joints/ muscles/ ligaments/ bones etc. cannot endure. Deca Durabolin greatly reduces the chances for such injuries to appear. But even if they do occur (or you’re already suffering from some injuries) Nandrolone would greatly reduce the required time for healing up the muscles.
  • Deca Durabolin can be added in a steroid cycle stack without increasing the negative side effects risks. This steroid is amazing for those who want to boost muscles and strength as well as overall their recovery and looking much better but does an amazing job when stacked with other steroids by increasing their effectiveness without increases in risks of side effects.

Deca Durabolin (Nandroxyl 250) is having various other benefits too, but we only share the most commonly reported ones and the biggest benefits. In case you want to use this steroid for bodybuilding purposes, is very important to check the benefits to make sure that this steroid is going to offer what you search for, but also check the side effects and learn how to use it.

Deca-Durabolin Side Effects

Despite the fact that Deca-Durabolin (Nandroxyl 250) is known as a pretty safe steroid that is not going to offer unbearable or dangerous side effects unless abused, some side effects are still possible. After all, this is a steroid and as any other steroid – side effects are possible. The overall appearance as well as the severity of the side effects of Deca Durabolin greatly varies from one person to another. While someone may not get a single side effect at all, others might get unbearable side effects.

  • That’s while both using the same steroid. It all depends on a lot of different factors such as: steroid dosage, personal tolerance, personal genetic make up of each person, steroid cycle length, either you add other steroids or not, added other supplements/ products or not, size of each person, experience with steroids, diet, workout regimen and various other factors.

That’s why, as much as we can see, is always a good idea to make sure that you are ready to use a steroid. You need to make sure you are healthy enough, you should learn how to use it, what you can expect from it and many others.

In case you’re having health issues (depending which ones and depending on their severity) you may not be able to use Deca-Durabolin (and steroids at all). Other than that, in case you’re going to use the steroid without working out and dieting expecting it would make you more powerful, grow muscles and improve physical appearance – you would be very disappointed.

Here are some of the most commonly reported side effects of Deca:

  1. Androgenic side effects. Deca Durabolin doesn’t seem to have a high androgenic activity, however, it still has some and that’s why, androgenic side effects are possible, especially in high dosages. People with genetic predispositions to androgenic side effects are at highest risk of getting them. Some androgenic side effects include: increased hair growth on various parts of the body (including face), hair loss (male pattern baldness), others may experience bad skin condition leading to acne.
  2. Virilizing side effects. Women are not recommended to use Deca Durabolin because is a very long half lived steroid. They should better go for Durabolin (NPP) in case they want to use Nandrolone as it has a shorter half life. Nonetheless, Nandrolone steroids are very capable to offer virilizing effects in women (the process of masculinization) which can lead to: shredding head hair, deepening of the voice, increased hair growth on body and face, clitoral enlargement, menstrual irregularities and others.
  3. Estrogenic side effects. Men using Deca Durabolin (Nandroxyl 250) are at risk of developing estrogenic side effects because Nandrolone is converting into estrogen through aromatization. Men with already high estrogen levels are at higher risk of receiving estrogen related side effects. Also, Nandrolone has a powerful progestin nature which is making the appearance of such side effects even more possible. Therefore, you can get: bloating, abnormal enlargement of breasts, gynecomastia, water retention, hypertension and various others.
  4. Cardiovascular and cholesterol negative effects. A drawback of Nandrolone Decanoate is the fact that it could have a negative impact on cholesterol values by decreasing the HDL (good) levels of cholesterol and also increase the LDL (bad) levels of cholesterol. This may lead to cardiovascular issues, hypertension and other heart related side effects. This is the reason why is so important to have a good diet and a healthy lifestyle – it would prevent you from getting the negative side effects associated with cholesterol and cardiovascular. Dieting and working out is essential.
  5. Testosterone suppression. Being a steroid, Deca is capable to inhibit the production of testosterone naturally. This could lead to low testosterone levels, which is very bad for a man, it can even be unhealthy. That’s why is extremely important for a man to have a Post Cycle Therapy (PCT) plan implemented after each steroid cycle – it would reduce the time required to get your hormone balance in normal range (from months to weeks) and maintain artificially high levels of testosterone. Low testosterone is a condition with many different symptoms.
  6. Other side effects. It seems like Deca Durabolin offers many various negative side effects which can affect you both physically as well as psychologically. Mood swings, increased aggression, bloated look, iron deficiency, loss of libido and erectile dysfunction (known as Deca Dick) are only a few examples.

In order to stay away from intense side effects, is highly recommended for you to learn as much as possible about Nandrolone Decanoate, what results you can expect in terms of both side effects and results and how to properly administer it for staying away from side effects.

  • In the end, the adverse side effects may be unnoticed at all, but they could be really bad – it very much depends on the way you administer this product.

Is Post Cycle Therapy (PCT) as important when running Deca?

Simple answer is – YES! Definitely. Absolutely every single anabolic steroid cycle should be followed by a PCT protocol which usually consists of Nolvadex or/ and Clomid. For example, a very common PCT plan is: first 2 weeks after all steroids are flushed out of the body Nolvadex 40 mg a day and next 2 weeks (total 4 weeks) 20 mg a day. But there are more severe PCT plans – it all depends on how severe your steroid cycle used to be.


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Deca Durabolin (Nandroxyl 250) is not the most powerful steroid in existence, but is still a pretty powerful one which is going to offer a significant increase in testosterone as well as other hormones and chemicals in your body. Because Nandrolone offers a boost in testosterone so much, the body “thinks” that there’s no need to produce testosterone on its own. As a result – your body is not producing (enough) testosterone naturally.

As soon as you would get off from the cycle, you do not receive testosterone from the steroid, and your body doesn’t produce enough too, that’s why, the testosterone levels are dropping way too much and that’s what going to make you feel bad because a man with low testosterone condition has various negative symptoms. A PCT is going to make sure that your hormone levels would get back in normal balance by artificially maintaining them high and allowing the body to produce the hormones faster and allowing for a faster and healthier recovery.

  • That’s why Post Cycle Therapy (PCT) is essential after stopping any steroid use.

With this being said, even before starting to use any steroid, is important that you have handy PCT medicines such as Nolvadex (Tamoxifen Citrate) or/ and Clomid (Clomiphene Citrate).

Deca Durabolin Dosage and Administration

Deca Durabolin (Nandroxyl 250) comes as oily solution that is meant for intramuscular injection. There are no effective Nandrolone pills, anyone claiming so – tries to scam you. That’s why, if you plan using Nandrolone, be prepared to use injections.

  • Cycle length with Deca Durabolin are usually long because the compound enters the system very slowly. Usually, cycles are anywhere between 12 and 16 weeks.
  • Deca Durabolin dosages are different depending on your needs. It could go from about 200 mg up to about 800 mg per week or so.
  • Deca Durabolin is usually recommended to be stacked with other steroids for achieving the best resuts.

Here are some examples of how to administer Deca:

For Beginners: those who just start using Deca Durabolin (Nandroxyl 250), they are usually recommended to go for a shorter cycle and with a lower dosage. Usually, that’s anywhere between 200 and 350 mg a week for a cycle length of approximately 12 weeks or so.

The dosages may be lower in case you’re searching for getting some therapeutic effects. Usually, such people opt for dosages anywhere between 100 mg and 150 mg per week for a total of 12 weeks.

For More Advanced Users: People with more experience are highly recommended to stack Deca Durabolin (Nandroxyl 250) with other steroids. A moderate cycle with Nandrolone for great bulking would offer best results when used in combination with other compounds and Deca Durabolin itself is taken in cycle length of 12-14 weeks. Usually, Deca Durabolin is stacked with a long form of testosterone (Testosterone Enanthate). Deca Durabolin 400 mg per week and Testosterone 500 mg per week. In addition to that, you would require Arimidex (or other aromatase inhibitor) to make sure that you’re going to avoid estrogen related side effects.

Others also may want to add Dianabol for the first six weeks of this cycle. Usually, dosages of Dbol are in the range of 30 and 50 mg a day. Then cycle is continued with Deca and Testosterone. Increase the dosage of aromatase inhibitor if you add Dianabol and decrease dosage when you remove it.

Last week of your cycle can be followed with Testosterone alone with the Arimidex in case you would still require estrogenic protection.

For Professional Users: If you’re a professional user of Deca Durabolin (Nandroxyl 250) then you’re already having enough experience with the compound and you’re pretty much knowing what you’re doing. And also, you’re searching for advanced cycles when going through serious bulking, that’s why the administration protocol differs from the previous ones.

Is pretty obvious that the goals of such a cycle is to add as much gains as is possible and that’s why, the user is adding various different steroids to be stacked together as they would offer best results. Such cycle is most commonly made of:

  • Deca Durabolin (Nandrolone Decanoate) – Nandroxyl 250 by Kalpa Pharmaceuticals
  • Testosterone Enanthate (or Testosterone Cypionate) – Testoxyl by Kalpa Pharmaceuticals
  • Dianabol (Methandienone) – Dianoxyl by Kalpa Pharmaceuticals
  • Human Growth Hormone (HGH) – Kalpatropin by Kalpa Pharmaceuticals
  • Arimidex (Anastrozole) – Arimixyl by Kalpa Pharmaceuticals


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Such a cycle is going to last for at least 16 weeks because longer cycles offer more results.

  • Dianabol shouldn’t be used for such a long time under no circumstances. The dosage of Dianabol should be 50 mg a day and only for 6 weeks.
  • Deca Durabolin is used for 14 weeks at a dosage of about 600 mg per week.
  • Testosterone (either Cypionate or Enanthate) or used in a dosage of about 800 mg per week for the entire 16 weeks.
  • Human Growth Hormone (HGH) should be used at about 5 IU a day for the entire 16 weeks cycle.
  • Arimidex is also used the entire cycle but the dosage of it depends on how much estrogen you need to inhibit.

NOTE! Is important to know that the dosages may slightly change for each compound mentioned above. They could be slightly more or slightly less depending on your tolerance, goals etc. But is very important to understand that side effects can be bad in case you abuse it. Reduce the dosage if you receive side effects and do not ever abuse this steroid. The apparition of side effects is usually a sign that the compound is administered in abnormally large amounts of the drug.

Deca Durabolin (Nandrolone Decanoate) Conclusion

Nandrolone esters are considered to be the most famous AAS for physique and performance enhancement purposes. Bodybuilders all over the world use Deca Durabolin for growing immense amounts of muscle mass and strength.

This compound has lots of different benefits but in order to receive all of them, make sure you get a real and high quality Deca Durabolin for sale. By using, you make sure you save money and get the best Nandrolone for receiving best results as the brand name Nandroxyl 250.


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