Finasteride Blocks Progesterone Synthesis in MA-10 Leydig Tumor Cells

Finasteride not only inactivates the 5a reductase enzyme but also affects the 5b reductase enzyme in a dose-dependent manner, which can impact sexual behavior and brain activity. The user experienced significant hair regrowth and side effects on 1mg of finasteride, which diminished after reducing the dose to 0.5mg, leading to no side effects and further hair improvement.

The conversation discusses a last-resort hair loss treatment combining topical finasteride, minoxidil, melatonin, and progesterone, with claims that topical finasteride can inhibit up to 52% of scalp DHT. One reply clarifies that progesterone is not an anti-androgen but has anti-androgenic properties because it competes with androgens for receptors.

The user is asking if using a 10% fluridil formulation would be effective for blocking scalp androgens in addition to their current treatment of oral dutasteride.

The conversation is about managing allopregnanolone deficiency caused by 5-alpha-reductase inhibitors like finasteride or dutasteride. Specific treatments discussed for hair loss include Minoxidil, finasteride, and RU58841.

Finasteride can affect hormone levels, potentially causing symptoms like puffy nipples and testicular pain, and may result in elevated prolactin and high testosterone. The user is seeking interpretation of these changes after taking finasteride.

Finasteride can reduce DHT in the genitalia, potentially causing side effects like reduced erections and penile fibrosis. Using PDE5 inhibitors like Tadalafil or Sildenafil may help maintain penile health and prevent fibrosis.