Mesterolone, also known by its trade name Proviron, is an oral anabolic-androgenic steroid (AAS) that has been utilized in both therapeutic and performance-enhancing contexts. Developed by Schering in the early 1960s, this drug has since been used primarily to treat male hypogonadism and infertility. Proviron (mesterolone) is an oral DHT-derivative androgen prescribed for male hypogonadism in parts of Europe, Asia, and Latin America. It is not FDA-approved in the United States. Proviron, known chemically as mesterolone, is an oral androgen that mimics testosterone effects in the body. It is primarily prescribed to men with low testosterone levels, a common cause of erectile dysfunction (ED). Mesterolone, sold under the brand name Proviron among others, is an androgen and anabolic steroid (AAS) medication which is used mainly in the treatment of low testosterone levels. [2][3] It has also been used to treat male infertility, although this use is controversial. [2][4][5] It is taken by mouth. Proviron is the brand name for mesterolone, an oral androgen prescribed to treat low testosterone symptoms, certain types of infertility, and estrogen-related conditions in men. Proviron is a global chemical company manufacturing innovative ‘in-between’ products in our sustainable way since 1977. Proviron (Mesterolone) information on doses, administration, side effects and how to buy Proviron online. Proviron balances a deficiency in androgen formation that starts to gradually decreases with an increase in age. Therefore, Proviron is suitable for the treatment of all conditions caused by the deficient formation of endogenous androgens. Worried about Proviron side effects? Learn what to expect — from hair loss and acne to hormone suppression — and how to manage risks effectively while optimizing results. Proviron is a medicine containing mesterolone. It is a form of androgen (male hormone) therapy. What is Proviron used for? R Proviron is used in men who do not naturally produce enough androgens (male hormones).