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Old 09-21-2018, 09:51 PM   #1
ESTROGEN GUY
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INFORMATION BREAKING EACH TESTOSTERONE ESTER DOWN

Here is more information backing the study I posted Testosterone and ester break down.

Common Injectable Testosterone Esters
Written by Jasen Bruce

The most common forms of injectable testosterone include Testosterone Cypionate, Testosterone Propionate, and Testosterone Enanthate…or a 'blend' of some sort. I do not like testosterone "blends" do to irregular release patterns. Always remember that each of these forms is simply testosterone, the molecule remains unchanged, and the only difference is the "ester" which determines the half-life within the body. An 'ester' is basically a chain composed of Hydrogen, Carbon, and Oxygen atoms which are attached to the testosterone molecule which must be broken down creating a 'timed release" in the body once injected. Even though the testosterone molecule remains the same no matter the ester, each one can yield different results in patients.
Enanthate: This is metabolized in roughly 4-5 days. It can even remain in the body (in very small amounts) for 2 weeks. 100mg of Testosterone Enanthate yields ~73mg of actual testosterone, the rest is ester weight. Injections can be administered every 5 days. As we all know everyone is unique in their response to drugs but from what I have seen in my experience the approximate starting doses which may bring a patient within optimal ranges (650ng-1100ng) is 100mg-200mg IM every 5-7 days. Of course many factors come into play including the patient's baseline levels and biology.
Cypionate: This is metabolized in roughly 7-8 days. This is also considered a 'long-acting' testosterone. 100mg of Cypionate yields ~68mg of actual testosterone. A good starting dose would be similar to Enanthate, more commonly between 100mg-200mg IM every 7days.
Propionate: This is a faster acting ester which can peak in the blood within hours and metabolized over 3 days. Injections should be administered every 2-3 days. You must weigh the 'positives' with the 'negatives' before prescribing propionate. Since it metabolizes so quickly, and needs to be administered frequently, it is easy to stabilize levels and optimizes blood-testosterone-levels quickly. On the downside IM injections must be given frequently which can keep patients from remaining compliant. Also, since the levels peak faster there is also an increased chance of aromatizing the testosterone into estrogen and increased DHT conversion which can cause side effects. 100mg of Propionate yields 80mg of testosterone.
Other Esters found in TRT medicine include;
Aqueous Testosterone Suspension: No-Ester. Requires frequent IM injections since it remains in the body only for a few hours. (Very painful injection). The risks outweigh the benefits when it comes to Testosterone Suspension and we do not recommend prescribing t
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