Are Finasteride-Related Penile Curvature/Peyronie’s Disease Adverse Event Reports Worthy of Further Clinical Investigation? Disproportionality Analysis Based on Both the Food and Drug Administration (FDA) and the European Medicines Agency (EMA) Pharmacovigilance Databases

Finasteride's effectiveness and side effects may vary based on male phenotypes, with some users noting differences in response related to body and facial hair characteristics. Some users report success with lower doses, while others experience side effects, suggesting individual variability in response to the treatment.

A 27-year-old male physician improved hair density using minoxidil 5% foam and finasteride 1mg every other day, with initial sexual side effects that subsided. He recommends trying finasteride for a year but warns against dutasteride due to potential liver effects.

A 19-year-old with diffuse hair thinning and erectile dysfunction is considering starting Propecia (finasteride) while already using a minoxidil solution with anti-androgens. Concerns are raised about the psychological nature of erectile dysfunction and the potential systemic effects of anti-androgens, with suggestions to address porn addiction and consult a doctor about hormone therapy.

Finasteride use and its potential side effects, including erectile dysfunction and post-finasteride syndrome (PFS), with discussions on lifestyle factors and the influence of anxiety. Some users argue that PFS is not well-documented, while others share personal experiences of adverse effects.

Finasteride is not linked to a 60% risk of persistent sexual dysfunction; this figure applies only to those already experiencing sexual issues. Most users do not have side effects, and the study's methodology is criticized for selection bias.

A 26-year-old has been using finasteride for over two years, initially at 1.25mg daily and later at 5mg weekly, resulting in stable hair condition with some regrowth and minimal side effects. The user reports high libido and a protein and vegetable-heavy diet, with initial watery semen as the only side effect.