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Mesterolone – Proviron

Proviron is a unique medication known for its anti-estrogenic properties. By effectively blocking estrogen receptors in the brain, it stimulates the release of Gonadotropins (LH and FSH), prompting increased testosterone production in the testes.

This drug does not exhibit direct anabolic or androgenic effects. Initially synthesized in the 1970s, it vanished from the market by the late 1990s. The pharmaceutical company Schering has ceased production, leading to widespread concerns about the integrity of online offerings of Proviron. Claims of availability may often stem from sellers peddling counterfeit or substandard products.

The drug was first explored as a treatment for depression and anxiety in both men and women, eventually being associated with increased LH and FSH levels, enhancing testosterone levels and addressing fertility issues. Now, however, Proviron is largely considered obsolete in therapeutic applications, with most available online being likely fraudulent.

Indications

Historically, Proviron was indicated for addressing testosterone deficiencies and male infertility related to hypothalamic, pituitary, or testicular dysfunction.

Pharmacology

With its predominant androgenic activity rather than anabolic, Proviron has been employed by athletes and bodybuilders to mitigate testosterone suppression from extended usage of external anabolic steroids. Many users, however, have expressed disappointment due to its failure to significantly enhance muscle mass or strength, often attributing this to the prevalence of counterfeit products in circulation.

Although it showcases anti-estrogen traits akin to Nolvadex or Arimidex, it reduces breast enlargement and water retention—common side effects of anabolic steroids. Some users report muscle bulging effects, yet this may be confounded by concurrent use of various other anabolic substances. Its primary use has shifted to being a component in post-cycle therapy.

Females

In the past, Proviron has also been utilized by women. Despite some anecdotal bodybuilding benefits, many females find its efficacy minimal. Given its anti-estrogen properties, female users are advised to maintain regular consultations with healthcare providers.

Dosage

The recommended dosage for Mesterolone is 25 mg orally, taken 2-3 times a day over several months, followed by a maintenance regimen. Once ingested, Proviron is rapidly absorbed, boasting a prolonged half-life of 12-24 hours, with detectable levels in urine persisting for at least 2 weeks post-consumption. It is often paired with Tamoxifen or Arimidex during the washout phase.

Side Effects

Like any medication, Proviron carries potential side effects, albeit rare. Possible effects include:

• painful erections
• loss of libido
• general fatigue
• deepening of the voice
• increased hair growth
• acne and oily skin

Contraindications

Proviron should not be used by:

• children
• pregnant women
• those with abnormal liver function
• individuals with prostate cancer
• those with allergies

Cost

When available, Proviron is typically costly. However, quality and purity remain questionable, as it primarily circulates on the black market, often smuggled from Mexico and Asia, with 20 mg pills priced between $3 and $4, leaving buyers at risk of acquiring counterfeit products.

Detection

Considered a banned substance by many sports organizations, Proviron is routinely screened for in urine, remaining detectable for up to 2 weeks after the last intake due to its extended half-life.

Legal

While possession of Proviron is not illegal, most sporting entities include it in their urine tests. In the United States, it is classified as a Schedule 3 drug under the Controlled Substance Act.

Final Word

Today, Proviron largely resides in the annals of history, as genuine products are elusive. Current offerings are typically counterfeit or tainted. For those aiming for body development, alternatives like Arimidex are recommended for better efficacy.