Deca Durabolin or more commonly known as Deca is a brand name of the steroid Nandrolone Decanoate. First developed by Organon in the 1960’s for medical uses such as helping with weight loss from diseases such as cancer. Deca comes in the form of an injectable and is usually available in 10ml vials at strengths of 200 to 350mg/ml. You can also purchase this steroid in 2ml amps which is how organon produced it. It has a half life of around 15 days and so it can take a while to feel the effects from Deca, as well as take a while to leave the system when discontinuing usage. Deca is a steroid that no sports person subject to drug tests should ever use. This Anabolic Steroid has been known to show up in blood tests up to 18 months later.


Deca is generally quite a good choice amongst beginners as it has low side effects, however it is an 19-nors Steroid which means it is a Progestogenic compound and thus increases prolactin which can lead to side effects such as lactating nipples as well as gynecomastia. Certain medications such as Cabaser can be used to stop the prolactin side effects.

Deca is known for its lubricating effect on the joints. It reduces joint pain especially during heavy lifting. When using steroids your strength goes up at a rapid rate, this usually causes joint pains and Deca is often used at a low dosage to prevent this. Many power lifters also use Deca for its joint lubrication effect as they can suffer from sever joint pain from all the heavy lifting.

How to use:

Deca is mostly used in bulking cycles, it is known to increase muscle and strength at a decent rate but is also known for increasing water retention by quite a bit. Due to the increase in water retention, you will almost never hear of someone using it as part of a cutting cycle.

Due to its long half life, Deca is usually taken for a minimum of 10 weeks with Testosterone enanthate or cypionate. The deca is usually stopped a few weeks prior to stopping the Testosterone as the Deca takes longer to leave the system, and if there is to much Nandrolone in your system and not enough Testosterone it can cause erectile problems. Erectile problems are a common problem when using Deca, to help with this most people recommend using double the dosage of Testosterone to Deca. So if you taking 400mg Deca you should be using 800mg Testosterone to avoid erectile issues.

As Deca and Testosterone can take 4 to 6 weeks to fully take effect, most users kick start the cycle with a fast acting oral steroid such as Dianabol. Dianabol kicks in fast, within 1 week you will start feeling its effects and by the time you stop Dianabol the Deca and Testosterone should be working.

A big problem that many users have with Deca is recovering from the cycle. Deca has been known to cause severe shut down of the bodies natural Testosterone production and a big PCT is usually required to get the body to start producing Testosterone again. Using HCG during the cycle is often recommended when using Deca as it helps with the recovery at the end of the cycle.

PCT for Deca:

Here is an example of what a PCT should look like when Deca is used. (this is an example and my personal opinion only and may be wrong)

HCG 500iu twice a week during the cycle. Then 4 weeks after the lat shot of Deca you can begin the PCT which should consist of 100 mg clomid a day for 10 days then 50mg a day for 20 days. Along with the clomid use 20mg nolvadex for 30 days.

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