Free T, as you may know, is the nonbinding part of testosterone, available in particular for sexual purposes. In my case, finasteride has sharply lessened my free T blood serum level whereas my total T remains quite high.
When I see finasteride discusions, what strikes me is a little presented tests, hard numbers often back-checked by numerous further tests.
Other topics (on this board) we try to solve looking at as many as possible blood tests.
Without data what remains is a lot of hand waving.
Not wery useful way of getting grip on a problem.
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Very likely you have a bad FreeTestosterone test, most/all of as have unless assay was done in research laboratory.
To find out your testosterone picture either
may want to get from Quest Diagnostisc
Free, Bioavailable, and Total Testosterone
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or from same blood draw get
TT, SHBG, Albumin
you are then able to calculate your
FreeT and BioAvailableT using calculator here
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This is old science calculator (1990 knowledge) and have
1.5 to 2.2 times error according to this 2006 work (150% to 220%):
----http://www.atypon-link.com/WDG/doi/pdf/10.1515/JLM.2006.050
but it is best available, AFAIK.
Dr Shippen is using a chart that is based on same reference as shown in above calculator, so it must be good for something.
There is lot of other indicators at play, my short list:
Total Estrogens------------------------------
estrone, serum-------------------------------
Estradiol, sensitive---------------------------
Progesterone----------------------------------
Pregnenolone----------------------------------
Total Testosterone--------------------------
Free Testosterone---------------------------
DHT (dihydrotestosterone)---------------
prolactin, serum-----------------------------
sex hormone–binding globulin (SHBG), serum
Albumin-------------------------------------------
(TSH)--------------------------
Free (T3)-----------------
Total T3------------------------------------------
Free T4(direct)--------------------------------
DHEA Sulfate-------------------------------------
Cortisol (7:20)AM ----------------------------
Cortisol (3:20)PM ----------------------------
Hematocrit----------------------------------------
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I am not a doctor, I am on TRT myself.