Drostanolone propionate is a prodrug of drostanolone .  Like other AAS, drostanolone is an agonist of the androgen receptor (AR).  It is not a substrate for 5α-reductase and is a poor substrate for 3α-hydroxysteroid dehydrogenase (3α-HSD), and therefore shows a high ratio of anabolic to androgenic activity.  As a DHT derivative, drostanolone is not a substrate for aromatase and hence cannot be aromatized into estrogenic metabolites .  While no data are available on the progestogenic activity of drostanolone, it is thought to have low or no such activity similarly to other DHT derivatives.  Since the drug is not 17α-alkylated , it is not known to cause hepatotoxicity . 
As the only steroid in the course, but the best effect is achieved when combined with other drugs. Start using anabolic agents athletes may recommend a dose of 50 mg of propionate every two days. The usual dose of the most experienced athletes propionate 100 mg a day or more.
Be sure to take anti-estrogen drugs, such Proviron or aromatase inhibitors as usual, from the second week to prevent the development of gynecomastia, water retention, and other effects of estrogen. After the introduction of post-therapy cycle is carried out, is the most commonly used tamoxifen. Furthermore, it is desired that the output of cortisol blockers to preserve reception weight gain. Be sure to follow the diet for a set of weights, and take sports nutrition.