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  1. D

    Dependence on viagra/cialis while on TRT

    That was the entire point of my post. If the only problem is low T, there should be absolutely zero need for PDE5 inhibitors to function. Other issues, like vascular, performance anxiety, etc and now we are talking about a multiple diagnosis issue which goes beyond just TRT. And too many guys...
  2. D

    Dependence on viagra/cialis while on TRT

    Agreed, which could have many causes. That's why I tried to make it clear in my post that if the only issue a guy was having was low production of testosterone, they shouldn't need ED drugs unless there is another underlying issue, whether it be vascular, performance anxiety, etc. But so many...
  3. D

    Dependence on viagra/cialis while on TRT

    There are plenty of guys who don't need cialis/viagra on TRT. In my opinion, requiring a PDE5 inhibitor would indicate that you are not dialed in unless there are other underlying issues that would require the use of a PDE5 inhibitor like vascular issues. It drives me crazy when guys say "I...
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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