Erectile Dysfunction

What are the best blood pressure medications to avoid erectile dysfunction?
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Are your blood pressure medications affecting your erections? This is one of the most common questions men ask when prescribed antihypertensive therapy—and for good reason. Many men on testosterone replacement therapy (TRT) also require blood...
Anastrozole for Men: The Complete Evidence-Based Guide for Testosterone Therapy
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By Nelson Vergel | ExcelMale.com | Updated December 2025 Introduction Should you take an aromatase inhibitor with testosterone replacement therapy? This question has sparked considerable debate in men's health circles, with some clinics routinely...
It's Not Just Low T: 5 Surprising Reasons Your Sex Drive Is Low
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The Libido Misconception For most men, a lagging sex drive triggers an immediate, single-minded thought: "It must be my testosterone." While T is a key player in male vitality, this assumption often misses the mark entirely. Libido is far more...
Sexual Function on TRT: Why Testosterone Alone May Not Be Enough for Erectile Function
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Many men begin testosterone replacement therapy expecting their sexual function to improve across the board—better libido, stronger erections, enhanced satisfaction. And while TRT often delivers significant benefits for desire and overall sexual...
27 Questions + Answers about TRIMIX Penile Injection Therapy for ED
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In this webinar, Dr. Roger Khouri, Urologist, reviews dosing, proper injection technique, and safety, and answers all of your questions about Injection Therapy for erectile dysfunction. In this webinar, Dr. Khouri discusses: - Injection...
NO: The One Molecule That Supercharges Your Heart, Brain, Metabolism, and Sex Life (And Why Most People Are Dangerously Deficient)
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What if one molecule controls your blood flow, oxygen delivery, metabolism, immunity, sexual function, and cognitive performance — and most people are critically deficient in it? In this episode of Metabolic Matters, Dr. Nasha Winters sits down...
Options for Delayed or Absent Orgasms Despite Stimulation in Men
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Experiencing delayed orgasm or anorgasmia on TRT? Many men on testosterone therapy report difficulty reaching climax despite normal erections and libido. This frustrating issue is more common than most realize—and it's often treatable once you...
Do statins affect erections in men?
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Can statins cause erectile dysfunction? This is a common concern for men taking cholesterol-lowering medications. The research is mixed—some studies suggest statins may actually improve erectile function by enhancing blood flow, while others...
Dr. Shalender Bhasin: Optimizing the Diagnosis and Treatment of Hypogonadism 2025
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Nelson's house u heard it here first! Dr. Shalender Bhasin! * over the past 4 decades he has become a global leader in the biology of androgens, sarcopenia and aging related functional decline, his research has shaped clinical guidelines, its...
Best HCG Dose for Men on TRT: Two Studies That Used HCG with Testosterone
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What's the optimal HCG dose to preserve fertility and testicular size while on testosterone replacement therapy? Two landmark studies provide critical guidance for men seeking to maintain reproductive function during TRT. Research from Baylor...
Why ED Pills Stop Working—and What to Do Next | ED Treatment Landscape
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* Why Understanding the Root Cause of ED Is Critical Why do some men stop responding to ED pills—and what comes next? In this expert-led webinar, Dr. Tim Walsh, a board-certified urologist and prosthetic surgeon, explores the full...
Tackling advanced erectile dysfunction
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In this episode, titled "From investigation to resolution. Tackling advanced erectile dysfunction (ED)", experts Dr. R. Rees (GB) and Dr. V. Sahdev (GB) will take you through a thorough exploration of diagnostic techniques and cutting-edge...
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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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