Provi-K25 - Kassel Pharma

First synthesized by Schering in 1934, Mesterolone (Proviron®) holds historical status as one of the original synthetic oral androgens. It appeared before more anabolic-focused compounds and was primarily designed for male hormone therapy. Though not widely adopted in the U.S., it remained a standard component of European treatment for hypogonadism and male fertility issues. Its ability to avoid aromatization and maintain androgenic effect without major hormonal suppression gave it lasting therapeutic appeal.

Disclaimer: Information provided it this page is for general information only and does not substitute for professional medical advice.

For detailed information about Provi-K25 by Kassel Pharma, consult with your doctor or healthcare professional.