TRT

Pharmacogenetics of testosterone replacement therapy
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Understanding How Androgens (Male Hormones) Work in the Body Androgens, such as testosterone, play a key role in male development and overall health. However, their effects vary from person to person due to differences in how the body responds to...
Men's Response to Testosterone Depends on their CAG Repeats in Their AR Gene.
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Androgen Sensitivity: Beyond the Well-Known © Irina A. Khripun*, Sergey V. Vorobyev Rostov State Medical University, Rostov-on-Don, Russia The gonadal and extragonadal effects of testosterone in men have been actively studied in recent...
FDA issues class-wide labeling changes for testosterone products
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https://www.fda.gov/drugs/drug-safety-and-availability/fda-issues-class-wide-labeling-changes-testosterone-products [2/28/2025] Today, FDA informed sponsors of testosterone products about new labeling changes following the agency’s review of...
Nandrolone Use in Testosterone Replacement Therapy: Insights from ExcelMale.com Discussions
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Comprehensive Analysis of Nandrolone Use in Testosterone Replacement Therapy: Insights from ExcelMale.com Discussions Nandrolone, a synthetic anabolic-androgenic steroid, has garnered significant attention within the ExcelMale.com community as an...
Anabolic steroids and TRT decrease SHBG, DHEA, pregnenolone and progesterone in men.
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Effects of Anabolic Steroids and Testosterone on Hormonal Function in Power Athletes A study published in The Journal of Steroid Biochemistry (1985) investigated the effects of self-administered high doses of testosterone and anabolic steroids on...
Can Testosterone Therapy Be a Viable Option for Men After Prostate Cancer Treatment?
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Table 1 Guidelines for testosterone therapy in men with prostate cancer Current Evidence and International Medical Organisation’s Guidelines As shown, the guidelines pertaining to testosterone therapy use in hypogonadal men with treated or...
Potential Causes of Low Testosterone
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Testosterone is more than just a sex hormone. It plays a crucial role in a range of physiological processes, including the development of muscle mass, bone density, and even the modulation of blood sugar levels. While high levels of testosterone...
Complete Guide to Anastrozole for Men
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Anastrozole for Men: A Comprehensive Guide Key Highlights Anastrozole is an important medicine for controlling estrogen levels in men's health. It works by blocking aromatase. This helps to manage testosterone production and keep hormone...

Testosterone Cypionate and Nandrolone Decanoate

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Hello, I'm writing this post to gather opinion and insight from others on a similar path. I've been prescribed Testosterone for two years. Due to various reasons, adding Nandrolone Decanoate as an adjunct has been suggested by my provider...

Minimum Effective Dose of HCG Weekly To Prevent Testicular Atrophy

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Human Chorionic Gonadotropin (From the book Testosterone: A Mans Guide, amazon.com) Human chorionic gonadotropin (HCG) (not to be confused with human growth hormone, or HGH) is a glycoprotein hormone that mimics LH (luteinizing hormone)...
Compounded Hormone Products for Men: A Review by Shaun Noorian
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In this conversation, Nelson Vergel and Shaun Noorian discuss the various options available for men's hormonal treatments, focusing on hormone replacement therapy, the role of compounding pharmacies, and the importance of personalized medicine...
TRT Before and After: Real Transformations
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TRT Before and After: See Real Transformations Key Highlights Explore the amazing changes people go through before and after starting Testosterone Replacement Therapy (TRT). Understand how TRT can greatly improve life quality by fixing low...
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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