testostorone

Testosterone is primary androgenic hormone responsible for normal growth and development of male sex organs and maintenance of secondary sex characteristics. Its production and secretion is the end product of a series of hormonal interactions. Testosterone deficiency results when the testes fail to produce normal levels of testosterone. Men with primary hypogonadism or hypogonadotropic hypogonadism are candidates for testosterone replacement therapy. There are now a variety of products available to treat these disorders. Successful management of testosterone replacement therapy requires good evaluation and an understanding of the benefits and risks of the treatment. Testosterone replacement should approximate the natural, endogenous production of the hormone. The average male produces 4-7 mg of testosterone per day in a circadian pattern. Maximal plasma levels are in early morning and minimal levels in the evening.