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57-85-2 Raw Testosterone Powder Testosterone Propionate Injectable Oil
Synonyms:Testosterone Propionate ,Testosterone-17beta-propionate, Testosteroni propionas,Testoxyl Propionate,Test Propionate;
Apprarance:White crystalline powder.
Applications:Testosterone Propionate is the shortest-estered testosterone steroid. It's an injectable compound with a slower rate of release than un-esterified Testosterone, but a faster rate of release than all the rest of esterified testosterones.There are some advantages and disadvantages to the short acting ester. The major disadvantage is
that users have to inject Testosterone Propionate at minimum every other day throughout the cycle to get proper results. The advantages, however, are easier control and prevention of potential side effects. Also because there is less ester per vial, there is more actual testosterone per injection, which produces better results. The Propionate ester expands Testosterone's half-life to about 4 and a half days.
Testosterone Enanthate Injection, USP is indicated for replacement therapy in conditions associated with a deficiency or absence of endogenous testosterone.
Testosterone esters are less polar than free testosterone. Testosterone esters in oil injected intramuscularly are absorbed slowly from the lipid phase; thus Testosterone Enanthate can be given at intervals of two to four weeks.
Testosterone in plasma is 98 percent bound to a specific testosterone-estradiol binding globulin, and about two percent is free. Generally, the amount of this sex-hormone binding globulin (SHBG) in the plasma will determine the distribution of testosterone between free and bound forms, and the free testosterone concentration will determine
About 90 percent of a dose of testosterone is excreted in the urine as glucuronic and sulfuric acid conjugates of testosterone and its metabolites; about six percent of a
dose is excreted in the feces, mostly in the unconjugated form. Inactivation of testosterone occurs primarily in the liver. Testosterone is metabolized to various 17-keto steroids through two different pathways. There are considerable variations of the half-life of testosterone as reported in the literature, ranging from 10 to 100 minutes.
In responsive tissues, the activity of testosterone appears to depend on reduction to dihydrotestosterone (DHT), which binds to cytosol receptor proteins.
The steroid-receptor complex is transported to the nucleus where it initiates transcription events and cellular changes related to androgen action.
Within medicine, Testosterone Propionate is primarily utilized for the treatment of androgen deficiency in adult males (hypogonadism or andropause).The original
prescription guidelines stated that Testosterone Propionate doses for such a condition are that of 25mg 2 - 3 times weekly. Modern prescription guidelines and the range
at 25 - 50mg administered every other day or every two days for a total of 2 - 3 times weekly.
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