Inhibition of Steroid 5 Alpha-Reductase with Finasteride: Sleep-Related Erections, Potency, and Libido in Healthy Men

Finasteride can cause sleep disturbances, but these often improve over time. Some users experience side effects like reduced libido and brain fog, while others see hair regrowth and manage side effects by adjusting dosage or switching to topical treatments.

Finasteride can cause side effects like erectile dysfunction and decreased libido, possibly due to increased estradiol from testosterone aromatization, especially in those with higher body fat. Side effects vary widely and may also be influenced by genetic factors or neurosteroid inhibition.

The conversation discusses the effects of finasteride on libido, with the original poster experiencing a significant decrease in sexual desire after starting the medication. Other users share similar experiences and suggest potential remedies, including Vitamin E supplementation and lifestyle changes like avoiding pornography.

A user reports experiencing insomnia as a side effect of taking finasteride for hair loss, which takes 1 to 2 hours to fall asleep and results in only about 5 hours of sleep per night. They suspect the cause is related to the downregulation of neurosteroids due to finasteride.

Finasteride can reduce neuroactive steroids, causing side effects like depression, anxiety, and sexual dysfunction. Some users experience persistent symptoms after stopping finasteride, while others use alternative treatments like topical solutions.

Androsterone may help with sexual and affective dysfunction from finasteride by replacing disrupted neurosteroids without increasing androgenic side effects. Controlled testing is needed to confirm its effectiveness and safety.