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    why am I so fatigued the day after injection

    hello, first of all, I'm not taking synthroid ( its an old name LOL) I have been injecting .4 on a 200 ML bottle of CYP every Saturday and weds. The day after I inject, I have a weird phenomenon that almost feels like the flu. I get really Jittery, my neck hurts. I am really...
  2. S

    Getting OFF testosterone questions

    Dear Nelson and crew, I have no thyroid. 46 year old male, had thyroid removed from subacute thyroiditis. In the mix i found out my total T was 215. I am having a heck of a time getting my thyroid balanced AND the testosterone in gear. So the doctor has suggested i get off the testosterone...
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    High Estrogen, always normal Testosterone

    Hello, searching for answers. 46 year old male, no thyroid gland. Un treated total testosterone 215,240 etc. Taking .3 on a 200 ml bottle 1 time a week of cypinate. Every time I am tested 4 days after injecting, my levels are 550-700 total testosterone. Frees are within range...
  4. S

    sex drive blows!

    46 year old male here. I have no thyroid but my labs are all lined up. Untested total testosterone was 217 , take 3 mcg testosterone (on a 200 cup bottle) every 7 days. On my last test a week ago: total testosterone 594 (250 - 1100) hemocrit was 47 normal estradial was 46 ranges 39 and...
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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