Testosterone is given as replacement therapy when natural testosterone levels fall too low, causing symptoms such as those above. Natural testosterone levels fall with age and following surgical removal of the testicles (castration). They may also fall due to decreased functioning of the testicles (hypogonadism or eunuchoidism) caused by testicular disease, or by decreased gonadotrophin production by the pituitary gland, as a result of pituitary disease.
Testosterone replacement allows natural testosterone levels to return to normal, thus relieving the symptoms of the deficiency. In general, dosage should be adjusted according to the response of the individual patient.
Sustanon or Omnadren injection is injected slowly into the muscle where it forms a reservoir of medicine. The testosterone is gradually released all the time from the reservoir into the bloodstream. The injection is usually given once every two to three weeks, though the frequency will depend on your individual testosterone levels.
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