

Proviroxyl 25 mg – Androgen Support & Estrogen Control
Active Ingredient: Mesterolone
Manufacturer: Kalpa Pharmaceuticals
Pack Size: 30 Tablets (25 mg each)
Proviroxyl 25 mg contains Mesterolone, a potent oral androgen that plays a crucial role in reducing estrogen-related side effects and supporting natural testosterone levels. Produced by Kalpa Pharmaceuticals, it is a staple for bodybuilders who want to enhance the effectiveness of their anabolic cycles or optimize their post-cycle therapy (PCT).
Mesterolone is not an anabolic steroid used for mass gains but rather a powerful tool to balance estrogen and maintain libido. It's particularly valuable for reducing SHBG (sex hormone-binding globulin), which increases the availability of free testosterone. Proviroxyl is often compared to products like Arimixyl or Nolvaxyl but offers a unique non-suppressive profile ideal for long-term support.
Standard dosage ranges from 25–75 mg per day, depending on whether it's used during a cycle or as part of a PCT protocol. It can be safely combined with other SERMs and AIs for estrogen control or as a stand-alone agent to support androgen levels.
Proviroxyl is frequently stacked with:
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Learn more about Mesterolone via the official Mesterolone entry on PubChem.
Proviroxyl is used to control estrogen-related side effects and improve libido and free testosterone levels during or after anabolic steroid use.
No, unlike many other hormone-based compounds, Mesterolone does not suppress natural testosterone production, making it ideal for PCT.
Yes, it's commonly used in cutting cycles to enhance muscle hardness and combat estrogenic effects.
Nolvadex (Tamoxifen) and Arimidex (Anastrozole) are SERMs and AIs respectively, targeting estrogen directly. Proviroxyl enhances androgenic function and controls estrogen indirectly while supporting libido.
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