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Testosterone is the primary male sex hormone and androgen in males. [3] In humans, testosterone plays a key role in the development of male reproductive tissues such as testicles and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
Testosterone levels with single-dose rectal administration of a 40 mg testosterone suppository in hypogonadal men. [27] Testosterone was marketed as a suppository for rectal administration by Ferring Pharmaceuticals from the early 1960s under brand names such as Rektandron and Testosteron.
Name Chemical Class Abbreviation Tissue Cells Receptor Target Tissue Effect Testosterone: androgen: testes, ovary: Leydig cells: AR: libido, Anabolic: growth of muscle mass and strength, increased bone density, growth and strength, Virilizing: maturation of sex organs, formation of scrotum, deepening of voice, growth of beard and axillary hair.
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Testosterone undecanoate is a testosterone ester and a prodrug of testosterone in the body. [10] [9] [7] Because of this, it is considered to be a natural and bioidentical form of testosterone. [17] Testosterone undecanoate was introduced in China for use by injection and in the European Union for use by mouth in the 1970s.
The number one thing you want to get tested if you’re symptomatic is your total testosterone levels, which includes all forms of testosterone in your body: unbound free T, SHBG-bound T, and ...
With immunoassay-based techniques, testosterone levels in premenopausal women have been found to be about 40 ng/dL (1.4 nmol/L) and DHT levels about 10 ng/dL (0.34 nmol/L). [5] [74] With radioimmunoassays, the ranges for testosterone and DHT levels in women have been found to be 20 to 70 ng/dL and 5 to 30 ng/dL, respectively. [74]
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