Finasteride
Pronounced fin-AS-ter-ide
Brand names: Proscar, Propecia
Type: 5-alpha reductase inhibitor (prostate and hair medicine) · All Other Medicines
What Finasteride is used for
- Enlarged prostate
- Male pattern hair loss (lower-amount product)
Common side effects
- Reduced sex drive
- Erection problems
- Reduced semen amount
- Breast tenderness
Important cautions
- Lowers the PSA blood test reading by roughly half — prostate cancer screening results must be interpreted with this in mind
- Women who are or may become pregnant must not handle crushed or broken tablets, as it can affect a male baby's development
How it comes
Tablets. This guide lists forms only — it never lists strengths or doses.
Related medicines — Other Medicines
Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.