ALTERNATIVE STEROID NAMES: Deca
Durabolin, Hybolin Decanoate, Nandrobolic, Neo-Durabolic, Retabolin,
Nandrolone Decanoate, Deca-Durabolin, Decabolic, Deca 100
ACTIVE SUBSTANCE: Nandrolone Decanoate
Strength Gains: 6/10
Mass & Weight Gains: 6/10
Side Effects: 4/10
Ability to keep Gains: 8/10
Usual dosages: 200 - 600 mg per week
Detection time: 17-18 Months
Best combined with:
Bulking: Anadrol, Dianabol, Sustanon, Testosterones (Cypionate, Enanthate, Propionate).
Cutting: Winstrol, Anavar, Halotestin, Trenbolone.
Beginner Use: 8/10
Female Use: 6/10
Pros: Great for bulking and cutting, Mild Side-Effects, easily obtainable, most gains are kept after a cycle.
Cons: Widely counterfeited, counterfeited and UG products are mixed with/combined with testosterone.
Description : Deca
Durabolin (Nandrolone Decanoate) is the most versatile anabolic steroid,
being useful for mass, strength and also during cutting up periods. It
is also the most popular anabolic steroid. Normal usage is around 200 -
600 mg weekly.
("Deca") is actually the brand name for Organons version of the
Decanoate. Deca-Durabolin is a 19-Nor compound (some would say that it is
the 19-nor compound), and as such, it shares basically the same characteristics
with all of them. One thing unique to Deca, above nearly all steroids, is the
mystique it has had for the last quarter of a century. On a personal level, Ive
included Deca in cycles at doses ranging from 100mgs/week to 2,000mgs per week.
Suffice to say, I have my fair share of experience with Deca-Durabolin. This
drug was regarded very highly by Dan Duchaine in his Underground Steroid
Handbooks as well as many of his later writings. For many, this was and is the
final word on Deca. Lets delve into some of the reasons that Decas mystique may
be well deserved.
First of all, Deca-Durabolin (and Nandrolone in general) doesnt produce many
estrogenic or androgenic side effects. This is because Deca-Durabolin has a
very low rate of aromatization (conversion to estrogen via the aromatase
enzyme), roughly equal to 20% the rate of Testosterone.
Also, Ive read many places that Deca-Durabolin stores water in connective
tissue, thus alleviating joint pain. I have no idea what "storing water in
the joints" means. I have no idea how to really quantify that statement,
or where it started. However, in one study of postmenapusal women, Deca impoved
collagen synthesis (1), and in another study Deca-Durabolin increased bone
mineral content. (2)Both of these studies used VERY low doses, which were far
too low to promote muscle growth. In my estimation, based on these 2 studies,
an athlete attempting to use Deca only for these two effects (increasing bone
mineral content and collagen synthesis) should be using 100mgs of
Deca-Durabolin every week. Thats actually a higher dose than those two studies
used successfully. Even at of this dose, in HIV+ patients who have experienced
significant wasting, a 100mg/E2W (every 2 weeks) injection of Deca resulted in
a "significant increase in weight" (5). Id never recommend that low
of a dose for an athlete, but its evidence of Decas strong anabolic properties.
Deca is a very nice anabolic, causing nice (albeit slow) gains in quality
muscle. This could be due to its moderately strong binding to the Androgen
Receptor, or its many positive non-Androgen-Receptor mediated effects. One such
effect is nitrogen retention, which is a major factor in muscle growth and lean
mass gains; in one study, with low-doses (65 mg/week) and high-doses of Deca
(200 mg/week), both low-doses and high-doses resulted in significant nitrogen
retention (33-52 g nitrogen/14 days, representing gains of 0.5 to 0.9 kg lean
tissue/week), and body weight increased by 4.9 +/- 1.2 kg, including 3.1 +/-
0.5 kg lean body mass, and treadmill exercise performance (cardiovascular
fitness) also improved (7). Need I say that the higher doses in this study
produced more gains? Steroid.com members who have posted their results with
Deca-Durabolin confirm this in many posts and threads, with their average
reccomendation being to take 400-600mgs/week for muscle gain. I have to agree.
Deca-Durabolin also has a very long active life. We can see from the chart
below that a 100mg shot Deca (represented by the circles) produced relatively
active and stable plasma nandrolone levels until day almost 10, hence once a
week shots are all thats necessary for stable levels of nandrolond
Deca-Durabolinnoate (as a side note, the nandrolone phenylpropionate used in
this study was active, and only experienced a severe drop off around day 5,
shooting NPP every 4th day is the way to go). Youll also note that higher blood
plasma levels of Nandrolone are found with Gluteal injections as opposed to
Deltoid injections (this is true for all oil-based steroids, I suspect).
In another study of HIV+ men (6) we can see that
Deca-Durabolin ( 200mgs on week 1, 400 on week 2 and 600mgs for weeks 3-12)
caused NO negative side effects in total or LDL cholesterol, triglycerides, or insulin
sensitivity and there was a reduction of HDL cholesterol(8-10 points) in both
groups. Also, in most studies with HIV+ subjects, Deca-Durabolin also improved
So what do we know so far about this compound? So far, we know
thatDeca-Durabolin is a very safe drug for long term use, will help with joint
problems, could improve immune function, and is highly (!) anabolic, and not
Thats the good news (and theres a lot of it), now for the bad news:
Deca-Durabolin is known for producing quality weight gains, but it has to be
used for 12 weeks at a minimum, judging from Steroid.com members feedback, as
well as my own personal experience. This shouldnt cause any problems, since it
is a very mild drug in terms of side-effects.
Deca-Durabolin Side Effects
Many members of Steroid.com also complain of water-retention with this drug,
and again, Im inclined to agree. Letrozole seems to be a preferred choice to combat this,
and its my favorite for this use. This water retention would seem to make
Deca-Durabolin more suitable for bulking rather than cutting, although it can
be successfully used for either.
Now for the worst news: Deca-Durabolin is a progestin (as are all
nandrolones), unfortunately; it happens to stimulate the progesterone receptor
20% as well as progesterone itself (3), and this opens the door for many
possible unwanted side effects (water retention, acne, etc...). It must be
noted that most of those are rare, though. This also may be the major reason
that Deca is such a suppressive drug when it comes to your natural testosterone
levels. We can see from the chart below that a simgle measly 100mg injection of
Deca-Durabolin caused a total (100%) reduction of natural testosterone levels,
and it took roughly a month to return those testosterone levels to baseline!
All from 100mgs of Deca!
The moral of this story? Always use Testosterone with your Deca-Durabolin! I
suggest 200mgs, minimum, to avoid impotence and sexual dysfunction. For an
anabolic effect from that Testosterone, I recommend at least double that, with
an equal amount of Deca-Durabolin (minimum). Id also recommend taking an
anti-progesteronic drug with Deca-Durabolin (or at least having it on hand):
Cabergoline and Bromocriptine are both good choices.
So where are we? Well, Id be comfortable recommending Deca-Durabolin for use
in a bulking cycle at up to 600mgs/week for an extended duration (12-16 weeks),
or up to 400mgs/week in a cutting cycle (again, for 12-16 weeks), as long as
something to combat water retention is present. Whichever purpose you decide to
use Deca for, you still need to include Testosterone in your cycle and have
some anti-progesteronic drugs on hand (see paragraph above), just in case.
Post Cycle Therapy (PCT), though beyond the scope of this profile, needs to
be commented on. Due to the highly suppressive nature of Deca-Durabolin, I will
speculate that testosterone in a Deca-Durabolin-inclusive cycle needs to be run
for at least 2 additional weeks upon cessation of Deca. We remember from the
chart above that baseline testosterone levels took roughly a month to return.
Hence, a nice long estered testosterone should be run about 2 weeks longer than
Deca-Durabolin, to prevent having a lag in time when the Deca-Durabolin is not
producing an anabolic effect, yet is still suppressing your natural
testosterone levels. Id also suggest that a particularly aggressive PCT be run
after your cycle; nolvadex, HCG, and perhaps clomid should all be utilized in an effort to restore your
natural hormone levels as quickly and efficiently as possible.
Buy Deca - Derabolin
To buy Deca-Durabolin as a human-grade pharmaceutical from a dealer who
stocks the Organon brand will be an expensive proposition. You could end up
paying well over $10usd per amp or 2ml vial and this product is (in my
estimation) probably the most faked steroid in the world. Buying veterinary
grade will make this much cheaper, with $75 being the average price for a ten
milliliter bottle. There are also many underground labs that produce this drug
and usually 10-20mls of a 200mg/ml concentration will never run over $100.
of nandrolone Deca-Durabolinnoate on bone mineral content R, Righi GA,
Turchetti V, Vattimo A.).
Res 1978 Nov;38(11 Pt 2):4186-98
from Minto et al
et al. Am J Physiol Endocrinol Metab 283: e1214-22
- J Acquir
Immune Defic Syndr Hum Retrovirol. 1999 Feb 1;20(2):137-46.