No erections

Hi all,

Switched from Nebido 1000mg 4ml every 8 weeks to Testosterone Cyponiate 50mg x twice week, 3 weeks in now, and no erections since starting Test C.....

When I was on nebido, from week 2 to week 6 very strong erections, week1 and weeks 7 and 8 pretty poor erections.

But now no erections at all on 50mg test Cyp twice weekly

Any advice

Thanks guys
 
When I was on nebido, from week 2 to week 6 very strong erections, week1 and weeks 7 and 8 pretty poor erections.
This indicates lower hormone levels at weeks 1 and 7 & 8. Cypionate spikes hormones higher more quickly compared to Nebido. If this causes a poor response you either need to inject smaller doses, more frequently or switch to a shorting acting ester, such as the new oral testosterone formulations, Jatenzo, Orlando and or Kyzatrex.
 
Last edited:
Every 3.5 days on cyp should actually be pretty low fluctuation, my guess is either cyp is not good for you, or the dose results in unfavorable balance of testosterone metabolites. Pretty sure erections will not appear but i guess waiting until 6 weeks has passed would be smart anyway.
 

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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.

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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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