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  1. R

    Intramuscular injections.

    Hi guys, Is my TRT injection wasted (or potency less) if a spray of blood follows the withdrawal of the needle after administration? I inject slowly, the injection sites are rotated, I use a 23 gauge needle and I did aspirate the syringe prior to injecting the testosterone enanthate solution...
  2. R

    Can I divide 250mg Primoteston Depot into 2 x 125mg doses?

    Hi all, The prescription I have for my TRT protocol is Primoteston Depot- a 250mg TE redi-ject made by Bayer (see photo below). I have been advised for a more consistent TT level and better E2 management I should divide the large 250mg dose into smaller more frequent 125mg doses. Is this...
  3. R

    Can Anastrozole cause nausea and breathlessness?

    Hi guys, I have been on doctor prescribed and monitored TRT for the last 4 months. My current protocol includes TE (250mg per week) and Anastrozole (0.5mg twice per week). Lately I feel short of breath and have nausea at times throughout the day- especially during and after training. My...
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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