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[2] [27] Substitution dosages of oral testosterone in men are in the range of 400 to 800 mg/day. [27] [28] Such doses exceed the amount of testosterone produced by the body, which is approximately 7 mg/day, by approximately 100-fold. [2] [27] [28] The elimination half-life of oral testosterone is rapid at about 5 to 7 hours.
Testosterone, the base androgen of most androgen esters. This is a list of androgen esters, including esters (as well as ethers) of natural androgens like testosterone and dihydrotestosterone (DHT) and synthetic anabolic–androgenic steroids (AAS) like nandrolone (19-nortestosterone).
Testosterone undecanoate, an ester of testosterone and one of the most widely used androgen esters. An androgen or anabolic steroid ester is an ester of an androgen/anabolic steroid (AAS) such as the natural testosterone or dihydrotestosterone (DHT) or the synthetic nandrolone (19-nortestosterone).
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.
This is a list of androgens/anabolic steroids (AAS) or testosterone derivatives. Androgen esters are mostly not included in this list. The major classes of testosterone derivatives include the following (as well as combinations thereof): Testosterone derivatives: direct derivatives of testosterone not falling into the groups below
Testosterone decanoate; Testosterone diacetate; Testosterone dipropionate; Testosterone enantate benzilic acid hydrazone; Testosterone enanthate; Testosterone formate; Testosterone furoate; Testosterone hexahydrobenzoate; Testosterone hexahydrobenzylcarbonate; Testosterone hexyloxyphenylpropionate; Testosterone isobutyrate; Testosterone isocaproate
“Testosterone doesn’t drop off like estrogen does—it goes down a linear decline,” says Casperson. “Women in their mid-40s and 50s have half the testosterone that we had in our 20s.”
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.