finasteride syndrome

  1. V

    Prescribed TRT scrotal cream at 23

    Hello, I'm 23 and used finasteride and other 5AR inhibitors when I was 18 which is about the time all my symptoms began. I have brain fog, poor memory, anhedonia, low libido, zero morning/nocturnal erections in many years, etc. I stopped the finasteride when I was 19 but the symptoms remained...
  2. A

    Blood levels of pregnenolone after a year on 400mg a day

    It’s been almost a year since I started taking 400mg of pregnenolone a day in the morning on an empty stomach. I’ve tried different brands but settled on the Double Wood brand from Amazon for the price and effectiveness. Had a brief time where I tried stopping here and there and didn’t feel as...
  3. Nelson Vergel

    Propecia Side Effects: Court let Merck hide secrets about baldness drug's risks

    " Use of the drug remains widespread. It is now sold as Propecia and, since 2013, in generic versions under the chemical name finasteride. Last year alone, finasteride was prescribed for hair loss more than 1.6 million times in the United States, according to healthcare data company IQVIA. U.S...
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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