Finasteride, the active ingredient in Propecia, works by inhibiting the enzyme 5-alpha-reductase. This enzyme converts testosterone to dihydrotestosterone (DHT), a hormone that plays a significant role in hair loss. By blocking DHT production, Finasteride helps slow or stop hair loss and may even promote hair regrowth in some men.
Common Side Effects
While generally well-tolerated, Finasteride can cause side effects. The most frequently reported are sexual side effects, including decreased libido, erectile dysfunction, and ejaculation disorders. These effects usually disappear after stopping the medication. Other potential side effects include dizziness, breast tenderness or enlargement, and skin rashes. The frequency varies; some men experience no side effects whatsoever.
Less Common Side Effects and Considerations
Less commonly, men report depression or anxiety. It’s crucial to remember that a causal link between Finasteride and these mental health issues isn’t definitively established by all research. If you experience any concerning mental health changes while taking Finasteride, consult your doctor immediately. Also, prostate cancer risk reduction is a known benefit, but individual risk factors need consideration.
Severity and Frequency Data
| Decreased Libido | 1-10% |
| Erectile Dysfunction | 1-10% |
| Ejaculation Disorders | 1-10% |
| Dizziness | |
| Breast Tenderness/Enlargement |
Note: Frequency data varies across studies. Always discuss potential risks and benefits with your physician before starting Finasteride. This information is for educational purposes only and doesn’t constitute medical advice. Seek professional guidance for personalized treatment.
