Testoviron Depot 250 injection is a testosterone hormone replacement therapy. It is to be used with caution in the elderly and those with prostate problems. It is not recommended in children below 3 years of age. Testosterone is the male sex hormone responsible for the development of male reproductive organs (penis and testicles) and related sexual characteristics like the development of body and facial hear, deep voice, sexual drive. Testoviron depot is also important in the development of skeletal structure (bones and muscles). Some males who lack adequate quantities fail to have developed reproductive organs and secondary sexual characteristics.