Pharmaceutical Name: Stanozolol
Chemical structure: 17 alpha-methyl-5alpha- androstano
Molecular Formula: C22H36N2O
Molecular weight of base: 344.5392
Active Life: 8 hours for most orals, 48 hours for injectable
Anabolic/Androgenic Ratio: 320/30
One of the most popular and widely recognized anabolic steroids, Winstrol
enjoys a high popularity among steroid users. However, it may actually be one
of the more over-used compounds as it's abilities and effects will only be
fully realized by a minority of users who are administering it for a specific
Stanozolol is a derivative of dihydrotestosterone. Despite this most users of
the drug will find that its activity is quite mild compared to other compounds
with similar chemical origins. Individuals that are looking for mass gains
will likely be disappointed if using stanozolol for this purpose. It is widely
considered a cutting compound. Due to the lack of water retention most users
find that they can acheive a dry look to their physique as long as their body
fat is relatively low. For the most part, the anabolic effects that are
acheived via the use of this drug are a result of it's ability to increase
protein synthesizing and nitrogen retention (2,4). However as stated
previously these effects are mild at best.
Anecdotally a majority of users will report that their joints and ligaments
have a dry feeling when using Winstrol, complaining often of ligament pain
when lifting heavy. This would seemingly make the drug a poor choice for
athletes other than bodybuilders who are trying to acheive a specific "look",
but there is some scientific evidence that suggests that stanozolol could in
fact strengthen tendons and ligaments. However, with the vast majority of
users reporting ligament and joint pain while on the compound it is difficult
to recommend any attempt to administer the drug if peak performance is desired
for athletic competition.
Like most anabolic steroids oral administration of stanozolol has a rather
dramatic effect on levels of sex hormone-binding globulin in the body. In the
case of stanozolol however, it can be quite potent relatively speaking. It is
because plasma binding proteins, like sex hormone-binding globulin, act to
temporarily prevent steroid hormones from exerting their intended activities.
By limiting this, it results in a greater percentage of free steroid hormone
circulating in the body. This may actually result in a mechanism whereby
stanozolol could help to increase the potency of a concurrently used steroid
(5). Whether this benefit would be worth actually running stanozolol in a
cycle that would otherwise not include it would be something that the user
would have to experiment with him or herself as there is simply not enough
evidence to make a definitive conclusion one way or the other.
Use and Dosing of Winstrol
Winstrol is available as both an oral steroid as well as an injectable.
While there are no differences in the compound itself, there are several
advantages and disadvantages to using each compound. First, in an animal
study, it was demonstrated that the injectable version of the compound was far
superior to the oral administration of the drug for nitrogen retention (2).
This of course means that it is better able to help preserve or build
lean-body mass, something obviously one who is using the compound would be
Another advantage of injecting stanozolol is that it will negate the first
pass of the compound through the liver and therefore is less toxic to the
organ. Despite these advantages however, there are a few disadvantages of
choosing to inject, namely the comfort of the user. Stanozolol is notorious
for causing pain at the injection site upon administration and for possibly
several days afterwards, as anecdotally reported by users. This will often
cause users to begin administering the compound orally, especially when due to
the compound's unique structure, the injectable version can be taken orally as
With the active life of stanozolol being only eight hours, multiple doses of
the oral compound throughout the day is recommended. As for injections, once a
day is optimal to maintain stable blood levels of the compound, but every
other day should be adequate due to it's active life.
Male users will often find that doses in the range of 25-100mgs per day to be
adequate for seeing results with this compound. It is often anecdotally
reported that most first time users will usually administer 50mgs per day and
are generally happy with the effects.
Stanozolol is a drug that is fairly popular with women as well. This is
primarily due to the compound's anabolic nature, with the likelihood of
androgenic side effects being rather small. First time female users
anecdotally report that doses ranging from 5-15mgs per day will result in
quite dramatic gains. However like most compounds, users have experimented
with doses far higher with the risks of the associated side effects becoming
more pronounced as the dosages increase.
Due to the toxicity issues related to stanozolol it is most often recommended
that users limit their cycles of the compound to six weeks or less. However
many users have exceed this limit while running high doses and have reported
little to no complications. If an individual does decide to run stanozolol for
an extended period of time he or she should monitor their liver values via
blood tests to ensure that no permanent damage occurs.
Side Effects and Risks of using Stanozolol
The oral form of stanozolol is a 17-alpha-alkylated substrate and due to this
liver toxicity should be a concern to those who take this compound. Elevated
liver values will undoubtedly occur while running this drug. Even with the
injectable version, liver damage can occur so precautions need to be taken.
Stanozolol is also very harsh on the userï¿½s cholesterol levels often lowering
HDL and raising LDL at the same time, even at extremely small doses. Users
with histories of health problems related to cholesterol should be wary of
using this compound.
Androgen related side effects such as acne, prostate enlargement and an
aggravation of male pattern baldness are often reported by users. Anecdotally
many users have reported that stanozolol is one of the harshest drugs in terms
of hair loss. Many will simply not risk running the compound because of this.
As mentioned previously estrogenic side effects are not a factor with this
compound as it does not aromatize. Virilizing side effects in women are much
less likely to occur than with most other anabolic compounds, but there is
still a risk that these may develop, especially with larger doses. As always
these include deepening of the voice, body/facial hair growth, and enlargement
of the clitoris, among others.
1. Ellis AJ, Cawston TE, Mackie EJ., The differential effects
of stanozolol on human skin and synovial fibroblasts in vitro: DNA synthesis
and receptor binding., Agents Actions 1994 Mar;41(1-2):37-43
2. Olson ME, Morck DW, Quinn KB. The effect of stanozolol on 15nitrogen
retention in the dog. Can J Vet Res. 2000 Oct;64(4):246-8
3. Minuto F, Barreca A, Melioli G. Indirect evidence of hormone abuse. Proof
of doping? J Endocrinol Invest. 2003 Sep;26(9):919-23.
4. Brestel EP, Thrush LB., The treatment of glucocorticosteroid-dependent
chronic urticaria with stanozolol., J Allergy Clin Immunol 1988
5. Llewellyn, William, Anabolics 2004, 2003-4, Molecular Nutrition, pp. 173-5
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