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  1. S

    Cialis Lowered Libido?

    Sorry didn't see this; I don't know I've never experimented with Viagra.
  2. S

    Cialis Lowered Libido?

    I believe there is some confusion, I'd like to clarify this was not in the context of daily dosing. These were both one time doses, generally I dose EOD at 2.5mg. Also, I wasn't surprised about the delayed ejaculation; as its a well documented potential side effect. All I was trying to draw...
  3. S

    Cialis Lowered Libido?

    Yep 120mg
  4. S

    Cialis Lowered Libido?

    Mood was definitely low/mild anhedonia during/after the two occurences, but nothing unique enough that I could seperate as direct causation. I should also note that I'm relatively sensitive to supplements in terms of libido; curcumin, zinc and high doses of vitamin D all curb-stomp any interest...
  5. S

    Cialis Lowered Libido?

    Btw tried taking Cialis again this past weekend, again a similar situation to the last, and again had the same results: muted libido and inability to reach orgasm. Seems to take a day or two to resolve. Still not sure about the mechanism of action causing this. Ideas have been perhaps relaxing...
  6. S

    Cialis Lowered Libido?

    Thanks, I would generally tend to agree, just kind of at a loss at what could have been the cause, so grasping at straws here. Maybe it's something I'm not accounting for, but the two seemed pretty correlated and I can't think of any concrete confounding variables that would create such a stark...
  7. S

    Cialis Lowered Libido?

    Thanks for the response. I wondered about the lowered E2, but it just seemed like too quick of a response, as it was a rather immediate drop in libido, like 2ish hours, but maybe I'm a hyper responder to its inhibition.
  8. S

    Cialis Lowered Libido?

    Hey there, to get right to it I took 20mg before an outing with a girl last weekend as some insurance. Oddly enough before taking the Cialis libido felt strong, and erections were normal, but about an hour after taking it I noticed my libido start to fade. This is resulted in inability to come...
  9. S

    Pregnenolone in Men: Help determining proper dosage and frequency

    Thanks for the response, the cream isn't arriving for another couple of weeks so I'll give this a go in the meantime.
  10. S

    Pregnenolone in Men: Help determining proper dosage and frequency

    Thanks, I'll order some and give it a shot. I will report back with any results.
  11. S

    Pregnenolone in Men: Help determining proper dosage and frequency

    Thanks for your response, I believe you are correct. Do you happen to have any insight on how I could proceed from here?
  12. S

    Pregnenolone in Men: Help determining proper dosage and frequency

    Just to update; the experiment of splitting the doses up throughout the day was a bit of a bust, tried it for 2 weeks, but consistently felt worse. Seems like only the high dose all at once is able to give me benefits just, unfortunately, isn't consistent. I would like to add that I believe the...
  13. S

    Pregnenolone in Men: Help determining proper dosage and frequency

    Thank you for the response; I'll give it a try. Btw the agonism of the NMDA receptors is interesting, as the negative symptoms I experience are very similar to my experiences with glycine.
  14. S

    Pregnenolone in Men: Help determining proper dosage and frequency

    Thank you for the reply, I’ll take a read through the links you posted.
  15. S

    Pregnenolone in Men: Help determining proper dosage and frequency

    Hi all, I've been experimenting with pregnenolone for over a year now, with varied success. I seem to get benefits at 100mg (such as higher libido, more pronounced nighttime erections and better sleep); however, I don't get these results consistently. If I try to continue 100mg daily, the...
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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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