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  1. bennettjc

    Anxiety and Depression increased since starting TRT

    Good Morning, Sorry you are going through this! I'll offer you a minor suggestion/possibility? Is there any way you can get the labs at 6 weeks instead of 8 weeks? 6 is generally good enough. You are in the 4th week. If you are going to have to wait 8 more weeks to get your first level that...
  2. bennettjc

    Introduction From A Fairly New Member - Brooklyn NY

    Hi! This is Bennett. I'll confess that i am a bit of a ******** addict so I end up spending more time on the TRT groups there (too much time?) as opposed to here. But some things Gil has said have convinced me that this is the place to be. I'm almost 60 and my testosterone journey began...
  3. bennettjc

    Testosterone fine but crashed prolactin/no pleasure

    Justaguy1, I've had zero prolactin for a couple of years because I am on a medication to help my mood, mirapex (a Parkinson's med actually), which suppresses it And despite having had some of the lowest T levels in town (Total = 44ng/dl, Free = 2.4ng/dl) I usually can orgasm with pleasure...
  4. bennettjc

    Review of Dr. Michael Rotman - Urologist in Long Island & Manhattan NY

    As per the recommendation of Nelson and others here I recently had a telephone appointment with urologist Dr. Rotman. I've had appointments with 3 endocrinologists and 5 (yes 5) urologists in the NYC area for help with my extremely low T levels. The appointments occurred both before and after...
  5. bennettjc

    Free T Lab Ranges/Units Confusion

    Thanks so much for all of the info! Nelson is correct - This is the better of the TRT forums! Some more questions if I may: -Why do you think both Quest and LabCorp use pg/ml for their Free Ts instead of ng/ml? It seems very user unfriendly..... -Any thoughts as to why LabCorp continues to use...
  6. bennettjc

    LabCorp Vs Quest free testosterone lab ranges: Why are they different?

    Thanks. Great info that Lab Corp sends their dialysis specimens to another lab! No wonder it takes ~ 7 days for the results to come back.
  7. bennettjc

    Free T Lab Ranges/Units Confusion

    Hi! This is post for fellow obsessives and professionals and everyone else. ;-) I have heard various providers speak about desirable Free T levels being about "25-50." And it makes sense that units being attached to these ranges be in ng/dl because those are the units that Total T is reported...
  8. bennettjc

    IM versus Sub-q T Injections: Effect on TT, hematocrit, E2, and PSA

    Madman - Please see what I just wrote to readalot. Bennett
  9. bennettjc

    IM versus Sub-q T Injections: Effect on TT, hematocrit, E2, and PSA

    I did email one of the authors. And he was quite nice. It was easy to track down his email address. I am pretty sure he wouldn't mind if you or anyone else contacted him: UC Irvine - Faculty Profile System (email included). He did confirm that the sub-Q group received Xyosted. And the other...
  10. bennettjc

    IM versus Sub-q T Injections: Effect on TT, hematocrit, E2, and PSA

    This is very interesting. Thanks for posting!! What I would like to know is the frequency of injection for each group. The SubQ Test E group was almost certainly once a week because the "autoinjector" Test E group was clearly Xyosted. I do wonder about the more "old-school" IM group. Did they...
TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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