Low libido on TRT

You mean it did work ? How long have you been using it for ?
I perceive benefits from it, if that's what you mean by "work". I've been using it for over two years now and consider it an integral part of my protocol. I'm not encouraging all and sundry to hop on it. I think selegiline is more appropriate for older guys—who are more likely to have rising MAO-B activity. But you will find recommendations for age-dependent doses to as low as 30 years old. It's also possible that for some applications selegiline would compare favorably to dopamine receptor agonists.
 
This study is a little closer to the origin of the statement about dopamine.

Animal studies suggest that bremelanotide may affect female sexual desire by activating presynaptic [melanocortin receptor subtype 4] on neurons in the [medial preoptic area] of the hypothalamus, leading to increased release of [dopamine], an excitatory neurotransmitter that increases sexual desire.

I find selegiline and PT-141 to be quite dissimilar, even if both have some influence on dopaminergic activity. PT-141 did nothing for me but cause sleep-disrupting nocturnal erections. The intensity of this effect had me worrying about unintended side effects. Selegiline seems more controllable. It reduces my prolactin, while potentially improving mood, libido and sexual function. Animal studies suggest anti-aging properties.
What dosage you are on ? Can you give me some info regarding that plz. I hear withdrawers symptoms are not easy is it ?
 
What dosage you are on ? Can you give me some info regarding that plz. I hear withdrawers symptoms are not easy is it ?
I take 2.5 mg daily. There's more information in the article I linked to. I haven't stopped taking it for a long enough period to comment on withdrawal symptoms. My understanding is that selegiline works through suicide inhibition. This would imply there's not the kind of immediate rebound effect you might see with something like anastrozole, which is reversible and operating through competitive inhibition. Instead your body must rebuild its supply of MAO-B. I don't know if it would overshoot its baseline level in the process. Does aromatase overshoot its baseline when exemestane is discontinued?
 

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⚠️ 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.

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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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