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    Cabergoline starting dosage at 20 ng

    Hello, since starting trt my prolactin has risen to 20 pg/ml. It is causing ED/low sex drive and some nipple sensitivity. I was given cabergoline to help, however I'm not sure on the starting dose at moderately high level. I see most people start at .25mg twice a week, but their numbers are 3 or...
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    Length of Testosterone increase with HCG

    Hello, guys. Quick question. How long does HCG boost testosterone before levels return to base line? I.E. If I inject 200mg of test on Monday with 500ui of hcg, when will the boost of test I see on a blood test just be from the testosterone its self, and not hcg? I've read a study on rats that...
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    High prolactin on recent blood test. What to do?

    Hello, ya'll. My recent blood test showed a prolactin level of 21.3. My TRT doctor wants to keep an eye on it and recheck in a couple of weeks, and if still elevated send me for an MRI to check for a tumor (great!). What should I do at this point? Wait? Take a supplement like vitex? Or go get an...
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    High T dosage not working

    Hello, y'all. I got my test results back today from 6 weeks on 210 mg a week, and they were low at 538 total and 11 free E was 36. Before on 140mg a week as I was 411. My doctor jumped to 250mg, but I feel even that isn't enough. What could be going on here? What should I do? Is there anything I...
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    average peak and trough levels on 140mg testosterone dose?

    Hey y'all, to those on a therapeutic dose of 140mg, what is your average peak and trough levels? I just started doing weekly shots of 140mg and was wondering what my levels might be roughly. I know getting a blood test would answer my question, but I have to wait another month before they'll...
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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