Mesterolone – Proviron
Proviron is known for its anti-estrogenic properties, effectively blocking estrogen receptors in the brain, which stimulates the release of gonadotropins (LH and FSH) to boost testosterone production in the testes.
The drug lacks any direct anabolic or androgenic activity.
Synthesized in the 1970s, Proviron vanished from the market by the late 1990s and is no longer manufactured by Schering. Be cautious of online sellers claiming to offer legitimate products; authenticity is questionable at best, with many products being counterfeit or smuggled, primarily from Asia, Russia, and Mexico.
Initially, clinical trials examined its efficacy in treating depression and anxiety in both men and women. These trials uncovered its ability to elevate gonadotropin levels and increase testosterone, leading to its exploration for addressing fertility issues. However, Proviron is no longer prescribed for any medical conditions or disorders, and what is available online is often fake or compromised.
Indications
Proviron was once indicated for managing testosterone deficiency and male infertility linked to hypothalamic, pituitary, or testicular dysfunction.
Pharmacology
With a higher androgenic profile than anabolic effects, Proviron finds use among athletes and bodybuilders for counteracting the testosterone suppression post-use of anabolic steroids.
However, many bodybuilders report dissatisfaction, citing inadequate results in muscle mass or strength gains, often attributing this to the prevalence of counterfeit products. Without reliable laboratory testing, discerning genuine Proviron from fakes remains challenging. Its anti-estrogen action parallels Nolvadex or Arimidex, mitigating common anabolic steroids side effects like breast enlargement and water retention.
Some users claim it enhances muscle definition, yet many combine it with various steroids, complicating attribution of efficacy. Most experienced athletes have shifted away from Proviron, favoring Arimidex or Nolvadex instead.
For females, Proviron has been utilized in the past, but results vary widely. Due to its anti-estrogen effects, female users must seek continuous medical oversight.
Dosage
The typical dose for Mesterolone stands at 25 mg orally, taken 2-3 times daily over several months, potentially followed by maintenance therapy. It demonstrates rapid oral absorption and an extended half-life of 12-24 hours, detectable in urine for two weeks post-administration. Its inefficacy as an anti-estrogen often leads to combination therapy with Tamoxifen or Arimidex during washout phases.
Side Effects
As with any medication, Proviron carries the risk of rare but concerning side effects, which may include:
- painful erections
- loss of libido
- fatigue
- deepening of voice
- excessive hair growth
- acne and oily skin
Contraindications
Proviron is not recommended for:
- children
- pregnant women
- individuals with liver dysfunction
- those with prostate cancer
- individuals with allergies
Cost
When available, Proviron is typically expensive. Its quality and purity are questionable, as it predominantly circulates via the black market, often smuggled from Mexico and the Far East. Prices for a 20 mg pill range from $3-$4, with no guarantee of authenticity.
Detection
Proviron is prohibited by most sports organizations and is actively tested for via urine screenings. Its long half-life allows for detection up to two weeks following the last dose.
Legal
While possessing Proviron is not illegal, it is recognized by sporting bodies and is viewed as a controlled substance in the USA under schedule III.
Final Word
Proviron is historically relevant but no longer viable in the market. Current offerings are predominantly fake or compromised. For body enhancement enthusiasts, consider Arimidex as a far superior option.
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Good stuff.
Caroline Q. (verified owner) –
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Anonymous (verified owner) –
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Довольно сильная вещь. Чуть меньше идеала.
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نتائج ممتازة لكن استغرق وقتاً أطول قليلاً مما توقعت.
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Ausgezeichnete Qualität. Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION ist ein überlegenes Produkt.
Robert W. (verified owner) –
Extraordinario. Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION es un producto excelente.
Anonymous (verified owner) –
The difference was immediate.
Anonymous (verified owner) –
الـ Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION هو الأفضل في فئته. لا شك في ذلك.
Mauro C (verified owner) –
Buon prodotto. Potrebbe essere un po’ più forte.
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Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION的品质立即显现。太完美了！
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يعمل بشكل جيد. لا يمكنني الشكوى.
Anonymous (verified owner) –
The finest quality available anywhere.
Anonymous (verified owner) –
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Anonymous (verified owner) –
Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION يعمل كما هو موصوف. راضٍ جداً عن شرائي.
Anonymous (verified owner) –
عمل جيداً معي، لكن صديقي حصل على نتائج أفضل مع علامة تجارية أخرى.
Anonymous (verified owner) –
Muy bueno.
Galina C (verified owner) –
Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION funciona como se describe. Muy satisfecho con mi compra.
Chaim E. (verified owner) –
Mais ou menos o que eu esperava. Bom produto.
Tunde V. (verified owner) –
جودة جيدة حقاً. أوصي به.
Marat Z. (verified owner) –
منتج جيد. مشاكل طفيفة فقط.
Lijun Z (verified owner) –
Good product. Does what it says.
Camila N (verified owner) –
Outstanding results every time.
Gülsüm N. (verified owner) –
Erstaunliche Ergebnisse in kürzester Zeit mit Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION.
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Una inversión que vale cada euro. Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION es excepcional.
Viaan T. (verified owner) –
确实有效，但大约需要一周时间才能注意到。
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ذهلت من فعالية Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION. لا يصدق!
Farid M (verified owner) –
Bel prodotto. Funziona abbastanza bene.
Ajay E (verified owner) –
Funciona bien. No puedo quejarme.
Julius P (verified owner) –
对结果满意，但不是完全惊艳。
Nikau B (verified owner) –
我尝试过许多类似的产品，但Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION远远超过它们。
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Truly superior product.
Anonymous (verified owner) –
Very good but not mind-blowing.
Manaia Z (verified owner) –
El Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION ha cambiado completamente mi experiencia. ¡Extraordinario!
Anonymous (verified owner) –
Hace su trabajo pero no es impresionante.
Ricardo E. (verified owner) –
Definitivamente hace lo que promete. Solo que no tan dramático como esperaba.
Anonymous (verified owner) –
Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION funciona muito bem. Só é um pouco caro.
Kenji W. (verified owner) –
عمل جيداً معي، لكن صديقي حصل على نتائج أفضل مع علامة تجارية أخرى.
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Beeindruckende Ergebnisse in kürzester Zeit mit Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION.
Stefan G (verified owner) –
Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION fez uma diferença notável. Excepcional!
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Finally something that works as advertised.
Anonymous (verified owner) –
Bastante eficaz. Quase perfeito.
Ju-won W. (verified owner) –
Brilliant product and fast delivery.
Anonymous (verified owner) –
Feels like cheating it’s so good.
Ichiro O. (verified owner) –
Effets forts. Juste un peu inconstant.
Lourdes Y. (verified owner) –
Nice product. Works well enough.
Michael Z (verified owner) –
فعال بالتأكيد، فقط ليس قوياً كما كنت آمل.
Xiaojun J. (verified owner) –
Beyond expectations.
Anonymous (verified owner) –
مبالغ في تقييمه بالتأكيد مقابل ما تحصل عليه.
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Perfect product.
Anonymous (verified owner) –
The effects are immediate.
Surachai E (verified owner) –
الـ Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION يعمل جيداً جداً. فقط غالي الثمن قليلاً.
Anonymous (verified owner) –
Great even for beginners.
Andile Y (verified owner) –
عمل جيداً معي، لكن صديقي حصل على نتائج أفضل مع علامة تجارية أخرى.
Anonymous (verified owner) –
Very good results after consistent use.
Anonymous (verified owner) –
Sehr gutes Produkt. Fast perfekt.
Pongsak M. (verified owner) –
Outstanding results guaranteed.
Anwar G (verified owner) –
Buen producto pero el empaque podría ser más discreto.
Anonymous (verified owner) –
لا شكاوى. يقوم بعمله جيداً.
Lila E. (verified owner) –
Globalement satisfait de mon achat.
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很棒的产品，快速发货。Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION非常棒。
Elyor Z (verified owner) –
منتج جيد. يمكن أن يكون أقوى قليلاً.
Anonymous (verified owner) –
Almost no noticeable effect. Very disappointed.
Mehmet M. (verified owner) –
Die Definition von mittelmäßig.
Aurélie B (verified owner) –
持续使用后效果非常好。
Carson F (verified owner) –
Outstanding in every respect.
Anonymous (verified owner) –
Absolutely phenomenal product.
Anonymous (verified owner) –
Absolutely phenomenal product.
Rita I. (verified owner) –
Almost perfect. Just minor issues with delivery.
Astrid Q (verified owner) –
Nessuna lamentela. Svolge bene il suo lavoro.
Emil W. (verified owner) –
فعال إلى حد ما. شبه مثالي.
Simisola L (verified owner) –
Sto vedendo buoni miglioramenti con Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION. Non perfetto ma buono.
Virach A (verified owner) –
Ótimo custo-benefício. Bastante impressionado.
Anonymous (verified owner) –
按照广告宣传的那样工作。没有惊喜。
Andrew W. (verified owner) –
Davvero soddisfatto di Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION. Prodotto superiore.
Naomi P (verified owner) –
La qualità c’è ma le istruzioni per il dosaggio potrebbero essere più chiare.
Rune U (verified owner) –
This Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION exceeded my expectations in every possible way. The results were visible within the first week. Incredible stuff.
Anonymous (verified owner) –
جيد جداً لكن ليس مذهلاً.
Orkhan R. (verified owner) –
Résultats étonnants dès la première utilisation de Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION.
Anonymous (verified owner) –
Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION transformou minha rotina. Incrível.
Anonymous (verified owner) –
Makes everything else feel like a waste.
Kashvi E (verified owner) –
Excelente produto em todos os aspectos. Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION é de primeira linha.
Bakhtiyor P (verified owner) –
Good product. Only minor issues.
Anonymous (verified owner) –
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Anonymous (verified owner) –
Works for some things but not for everything claimed.
Jong-ho E (verified owner) –
نتائج مدهشة منذ الاستخدام الأول لـ Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION.
Ami Z. (verified owner) –
حصلت على نتائج أفضل من بدائل أرخص بكثير.
Anonymous (verified owner) –
一般。
Anonymous (verified owner) –
Purest stuff available online.
Anahera N (verified owner) –
Bel prodotto. Funziona abbastanza bene.
Rio F. (verified owner) –
不错，但我以前用过更好的。
Anonymous (verified owner) –
Extremely satisfied with my purchase.
Anonymous (verified owner) –
Hubei Proviron 30 tabs (25 mg/tab) EXPIRATION超出了我所有的期望。太棒了！
Yuri O (verified owner) –
Prodotto efficace. Lo comprerei di nuovo.
Anonymous (verified owner) –
Vraiment bonne qualité. Je recommanderais.