Finasteride, while effective for hair loss and benign prostatic hyperplasia (BPH), carries potential side effects. Understanding their frequency and severity is crucial for informed decision-making.
Many side effects are mild and temporary. The most commonly reported include decreased libido and erectile dysfunction. Studies suggest these occur in around 2-10% of users, though individual experiences vary significantly. These typically lessen or disappear upon cessation of the drug.
Less common, but more concerning, are gynecomastia (breast enlargement) and decreased ejaculate volume. These are rarer, affecting a smaller percentage of users. While usually mild, they can cause significant distress in some individuals.
Persistent sexual side effects, sometimes referred to as Post-Finasteride Syndrome (PFS), are a subject of ongoing research and debate. The exact prevalence and causality remain uncertain, with reported symptoms including persistent erectile dysfunction, decreased libido, and other sexual and neurological issues. It’s important to note that the long-term impact and the direct connection to finasteride are not fully established.
| Decreased Libido | 2-10% | Mild to Moderate |
| Erectile Dysfunction | 2-10% | Mild to Moderate |
| Gynecomastia | Less than 2% | Mild to Moderate |
| Decreased Ejaculate Volume | Less than 2% | Mild to Moderate |
| Post-Finasteride Syndrome (PFS) | Unknown | Variable, potentially severe |
Always discuss potential side effects with your doctor before starting finasteride. They can assess your individual risk factors and help you make an informed decision. Open communication with your physician is key throughout your treatment.
