Medical uses
Mesterolone is used in the treatment of androgen deficiency in male hypogonadism, anemia, and to support male fertility among other indications. It has also been used to treat delayed puberty in boys. Because it lacks estrogenic effects, mesterolone may be indicated for treating cases of androgen deficiency in which breast tenderness or gynecomastia is also present. The drug is described as a relatively weak androgen with partial activity and is rarely used for the purpose of androgen replacement therapy, but is still widely used in medicine.Mesterolone is used in androgen replacement
therapy at a dosage of 50 to 100 mg 2 to 3 times per day.
Non-medical uses
It has a strong androgenic effect while the anabolic properties of this medication are quite weak. Mesterolone Is the main active ingredient of this steroid. Due to the strength and endurance boost this steroid is very thought after by weightlifters.Mesterolone has been used for physique and performance enhancing purposes by competitive athletes, bodybuilder, and powerlifters.
Pharmacokinetics
The C1α methyl group of mesterolone inhibits its hepatic metabolism and thereby confers significant oral activity, although its oral bioavailability is still much lower than that of 17α-alkylated AAS. In any case, mesterolone is one of the few non-17α-alkylated AAS that is active with oral ingestion. Uniquely among AAS, mesterolone has very high affinity for human serum sex hormone-binding globulin (SHBG), about 440% that of DHT in one study and 82% of that of DHT in another study. As a result, it may displace endogenous testosterone from SHBG and thereby increase free testosterone concentrations, which may in part be involved in its effects.