hat
Fòm ki pi komen nan testostewòn injectable pou terapi ranplasman testostewòn (TRT) gen ladan testostewòn enanthate (TE) ak testostewòn cypionate (TC). Testostewòn enanthate ak Cypionate testostewòn yo modifye fòm testostewòn. Espesyalman, yo te yon ester asid karboksilik te ajoute nan gwoup la hydroxyl 17-beta. Atachman sa a fè TE ak TC mwens polè pase gratis T. Kòm yon rezilta, yo gen pi long mwatye lavi yo epi yo absòbe pi dousman nan zòn nan piki. Yon fwa nan san an, yo ester la retire yo bay gratis (aktif) T. Akòz lavi mwatye long yo, tou de TE ak TC bay yon lage soutni testostewòn nan san an pou youn a de semèn. Kòm yon rezilta, piki testostewòn nan TE oswa TC bezwen sèlman administre chak semèn oswa chak lòt semèn.
eng
The most common forms of injectable testosterone for testosterone replacement therapy (TRT) include testosterone enanthate (TE) and testosterone cypionate (TC). Testosterone enanthate and testosterone cypionate are modified forms of testosterone. Specifically, a carboxylic acid ester has been added to the 17-beta hydroxyl group. This attachment makes TE and TC less polar than free T. As a result, they have longer half-lives and are absorbed more slowly from the injection area. Once in the bloodstream, the ester is removed to yield free (active) T. Due to their long half-lives, both TE and TC provide a sustained release of testosterone into the bloodstream for one to two weeks. As a result, testosterone injections of TE or TC need only be administered every week or every other week.