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

FCE 28260 (PNU 156765), an under-explored 5α-reductase inhibitor, showcases promising results in research by Giudici et al., outperforming well-known treatments like Finasteride in reducing the conversion of testosterone to DHT. Its superior efficacy, demonstrated through lower IC50 values in both natural and human recombinant enzyme studies, suggests it could offer more effective management of DHT-related conditions. Additionally, its lower molecular weight hints at better potential for topical application, potentially offering advantages in treating conditions such as androgenic alopecia. Despite its potential, it has not advanced in development, possibly due to financial limitations, leaving its therapeutic prospects and side effect profile largely unexplored.

Topical Finasteride doesn't directly reduce 5ar enzyme on scalp and has the same mechanism as oral, needing to go through the liver. Users debate the accuracy of this information and discuss various studies and experiences.

A 28-year-old male experiencing hair thinning is considering minoxidil and finasteride. Minoxidil helps regrow hair, while finasteride prevents further loss; both are usually lifelong treatments.

Hair loss treatments like finasteride, minoxidil, and dutasteride work but have side effects. A permanent cure is still not available due to the complexity of hair loss and limited investment.

Finasteride, a hair loss and prostate drug, may also benefit heart health. Some users discuss the potential negative effects of DHT on the heart and the balance between hair loss treatments and heart health.

A 22-year-old male has been using oral finasteride for a year with no improvement in hair loss and was denied dutasteride by a dermatologist due to FDA approval issues but was prescribed oral minoxidil instead. The user is seeking advice on whether to switch to dutasteride, continue finasteride, or add minoxidil.