Review of Mesterolone Effects VS Side Effects (Worth Taking?)

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Mesterolone effects differ among bodybuilders and athletes, depending on usage.

Mesterolone is the chemical name for an oral synthetic anabolic androgenic steroid.

It’s derived from dihydrotestosterone or DHT, a metabolite of testosterone.

Results range from the good to bad, depending on dosage, frequency of dosage, and other factors.

Before use, take the time to research the drug and watch for indications of Mesterolone side effects.

Positive Mesterolone Effects

A number of positive Mesterolone effects may be experienced by bodybuilders and athletes, but caution regarding use is always advised.

One of the most common brands used by bodybuilders is Proviron. It’s been around since the 1930s.

Mesterolone benefits, at least in regard to its use by bodybuilders, revolve around its moderate anabolic properties while at the same time its decreased androgenic characteristics, both associated with any form of testosterone.

In medical scenarios, positive effects have been noted in its ability to increase mental alertness and its potential to inhibit age-related physical decline and decreased levels of androgens in the male body.

It’s also been used as a treatment of hypogonadism and male infertility.

Another of the benefits of use is its resistance to aromatization, which defines the conversion of testosterone into estrogen by the male body.

Men produce small amounts of estrogen to counterbalance levels of testosterone. The higher the levels of testosterone, the higher the levels of estrogen rise.

Though gentler in androgenic activity than other steroids, Mesterolone side effects are always possible, as Mesterolone is a modified form of dihydrotestosterone and therefore testosterone.

Individuals will react differently based on a number of factors:

Age – the body metabolizes drugs of any kind differently as we age

Weight – drugs are often dosage-based on a person’s height/weight ratio

Other drugs stacked with Mesterolone

Dosage and frequency of dosage

Some bodybuilders use Proviron (Mesterolone) as an aromatase inhibitor in their cycles.

Aromatase inhibitors are commonly incorporated into synthetic steroid usage to reduce the potential for estrogenic-like side effects.

Because of its composition, Mesterolone is not typically used as a muscle-bulking agent, and its efficacy in this regard is minimal. It is sometimes used in post cycle therapy (PCT).

Mesterolone Side Effects

Any drug has the potential to cause side effects. The same applies to Mesterolone bodybuilding.

A number of studies regarding the impact of Mesterolone effects on small animals have been conducted over the years.

Such studies have proven the influence that it can have on physical and psychological aspects of health and wellness.

“Adverse effect of the anabolic androgenic steroid Mesterolone on cardiac remodeling and lipoprotein profile is attenuated by aerobic exercise training.”

“Mania related to Mesterolone in a previously mentally healthy person.”

Other Common Adverse Effects

Additional side effects are noted, and are typical with other anabolic androgenic steroids.

Negative Mesterolone tablets side effects may also include:

Suppression of endogenous testosterone

Increased levels of “bad” cholesterol (low-density lipoprotein/LDL) that has been linked to atherosclerosis or buildup of plaque inside artery walls, which increases the risk for heart attack or stroke

High blood pressure

Excessive hair growth


Women are advised to avoid undesired Mesterolone effects caused by virilization, which contributes to:

Shrinking breasts

Deeper voice


Growth of hair on the face (hirsutism)

Disruptive menstrual patterns or lack of menstruation (amenorrhea)

Before using and anticipating Mesterolone effects, be knowledgeable about each. Watch for negative Mesterolone side effects and decrease dosage or discontinue if noted.

Mesterolone Review

Mesterolone is known by a number of brands as well as chemical names and nicknames depending on manufacture and country of origin. Among the most popular:





The chemical makeup is the same: C20H32O2

Mesterolone is not only used for non-medical purposes of bodybuilding and athletic performance enhancement in humans, but has also been reportedly used in illegal doping in horse racing venues.

Mesterolone has been used in the treatment of some conditions, one of the most common being the treatment of nighttime bedwetting in young boys.

It’s also been used to decrease “bad” (low-density lipoprotein/LDL) cholesterol levels, including triglycerides. Detailed information regarding the chemistry of Mesterolone can be found through the National Institutes of Health.

Mesterolone Dosage Recommendations

Mesterolone steroid (sold as a prescription-only drug but is available as a black-market drug) around the world is typically found in a 25 mg or 50 mg oral tablet.

Mesterolone or Proviron cycle ranges in dosage from 50 mg a day to 150 mg daily.

For many bodybuilders, dosage is strictly a matter of preference based on desired results.

Mesterolone effects have been noted when stacking with other forms of testosterone, so dosage recommendations and frequency of dosage will differ based on the length of use.

A Mesterolone (Proviron cycle) can last anywhere from 9 to 16 weeks. Mesterolone side effects tend to increase as the dosage increases – and may also become more prevalent as the cycle length increases.

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