Evaluating the Safety Profile of Alpha-1 Blockers, 5-Alpha-Reductase Inhibitors, and PDE5 Inhibitors for BPH: A Disproportionality Analysis of Real-World Adverse Events Based on FDA Adverse Event Reporting System

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.

Saw palmetto, a 5-alpha reductase inhibitor, caused unexpected side effects like breast changes and altered semen consistency, which resolved after stopping its use. Concerns about similar side effects with finasteride or dutasteride were expressed, and another user reported low libido and depression from saw palmetto.

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.

The user experienced sexual side effects after starting finasteride and later switched to dutasteride, noticing hormonal changes. They are considering using P5P and possibly aromatase inhibitors to manage high prolactin and estradiol levels.

The conversation is about managing potential gynecomastia from finasteride use. The user considers using an aromatase inhibitor and plans to check hormone levels.

Topical androgen receptor antagonists may not be necessary if 5-AR inhibitors like finasteride or dutasteride effectively reduce DHT levels. Combining a 5-AR inhibitor with a topical androgen antagonist could potentially enhance treatment, but oral use of androgen antagonists is too risky due to severe side effects.