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    Weird reaction to Levothyroxine and reverse T3 issues

    I don’t believe I have a total resistance to thyroid hormone, I’m more inclined to believe this is caused by RT3. I’m certainly no expert, but my response to Levothyroxine working for a few days only to have it slowly stop working again seems to me that T4 increases upon starting Levo, only to...
  2. T

    Weird reaction to Levothyroxine and reverse T3 issues

    I was diagnosed with sub clinical hypothyroidism around 6 months ago, I was very much symptomatic despite only having a TSH of 3ish and low but in range T3 and T4 levels. I was initially put on NDT (NP thyroid but that did little to change any of my symptoms, doctor put me on Levothyroxine...
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    Persisting ED and depression post Boldenone/Primo use

    Early 2020: 600/600 Test E/EQ per week, , 500iu HCG e3.5days Late 2020: 500/300 Test E/Primo per week, 500iu HCG e3.5 days, 25mg dbol once or twice a week Cruising: 125mg Test C, 500iu HCG e3.5 days. I’m currently on ED injections, but in the past 18 months I’ve trialed, ED, EOD, E3.5 days for...
  4. T

    Persisting ED and depression post Boldenone/Primo use

    I’ve spent the better part of the last 2 years struggling with persisting ED, Depression, Anhedonia following the use of Boldenone and then Primobolan. My symptoms align mostly with what a lot of people with PFS have but given I’ve never had PFS I’m reluctant to post on the propeciahelp forums...
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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