Molecule : Mesterolone
administration: oral
Type: Powerful anti estrogen
Positive effects: Avoids gynecomastia and impotence
Side effects: Priapism, virilisation
Dosage: Between 25mg / day and 50mg / day

Le Proviron (Mesterolone), is a potent anti-estrogen.

Derived from DHT (Dihydrotestosterone).

He has no anabolic property, this synthetic androgen used as anti aromatic.

This means that as part of a steroid treatment, it will prevent the processing of your androgens to estrogens.

Its combination with Nolvadex in fact a formidable tandem for use in support of cure (protection) during your treatment.

Clinical Studies proviron


In the medical setting, Proviron is used to reduce the problems associated with a deficiency of male sex hormones (Androgen) Testosterone.

In 70 years it has been used with some success in controlled studies for men suffering from various forms of depression.

More recently, a clinical trial involving men 38 souffrantsde dysthymia which it was administered dosages of 75 mg daily and during 4 weeks.

A marked improvement in symptoms including anxiety, lack of desire and lack of confidence were reported.

Dysthymia is a mood disorder involving depressive behavior.

This is a kind of chronic depression.

The second part of this study involved administering higher doses (450mg / day) on a group of 52 individuals whose average age was 40 years and also suffering from dysthymia (chronic mood disorder).

This clinical trial of a period of 6 weeks, including that half the subjects were given a placebo administered.

Unfortunately, no significant differences were evident between the two groups.

This is probably because of the high doses that were administered.

If not, however, lower levels of "LH"Better known under the name of luteinizing hormone.

Luteinizing hormone stimulates the production of Testosterone by interstitial cells of the testis.

positive effect of proviron


Curiously, the Proviron is in some countries legally considered a anabolic steroid.

Yet this has no significant direct anabolic effect.

This drug can produce a number of benefits to steroid user.

The first obvious use Proviron it is designed to treat sexual dysfunction.

We must not forget that Proviron is a powerful androgen and that androgen hormones greatly affect libido.

For one reason or another, many users steroids will suffer a loss of libido during a steroid cycle.

Proviron, for most people, prevents this.

It appears according to the testimony of some users, this compound is almost as powerful as a small dose of viagra.

During a steroid treatment, it is very common that the testosterone and other androgens are converted into estrogen by an enzyme known as aromatase name.

Proviron has an affinity for the aromatase enzyme that is actually stronger than testosterone.

It tends to bind to it at a higher rate than the TestosteroneBut not to convert into estrogen, so it reduces the levels of aromatase, which lead to less conversion of androgens estrogen.

And leaving the way androgens its wander more freely in your body and make you enjoy anabolic effects.



Another great reason to use Proviron is that it is useful for muscle growth.

As with aromatase Proviron tends to bind to this binding protein at a higher rate than testosterone, thus leaving the latter free to bind to androgen receptors in muscle tissue.

Another often overlooked factor is the fat burning potential provided by the Proviron.

It is generally said that steroids have no real effect on fat burning.

But research suggests that the stronger androgen has an ability to cause fat tissue to release fatty acids.

side effect of Provion


proviron_1We can not really speak of negative effects caused by normal doses of Clomid.

In case of non respects assays however, it is optionally possible to observe a slight retention of water.

Proviron is in 90% of cases used with NolvadexThis water retention will be mitigated by the use of the latter.

It is good to remember that the dosage recommended for Proviron is:

  • 25 mg per day for men and women for normal cure.
  • 50 mg per day for men who make a very big steroid treatment.


This difference is explained by the fact that Proviron is strongly androgenic drug.

This can have the effect of causing masculinization effect in women.

The masculinization in women, is changing its secondary sexual characteristics that tend toward the masculinization.

The main symptoms are:

  • Hirsutism
  • Androgenic distribution of body fat
  • Changes in voice
  • Clitoral enlargement
  • Menstrual Disorders


These are phenomena unfortunately, in most cases, irreversible.

Discontinuation of treatment will be doubly recommended if you are experiencing these problems.

Problems that appear in the event of negligence.