Overview
Finasteride is indicated for men with male pattern hair loss on the vertex and anterior mid-scalp.
How it works
Finasteride blocks the enzyme 5-alpha reductase, lowering DHT, a hormone that shrinks hair follicles in genetically susceptible men.
Potential benefits
- May slow hair loss and improve hair count in some men
- Results generally take 3–12 months to assess
Individual results vary. Outcomes are not guaranteed.
Who may qualify
- Men with pattern hair loss
- Not for women who are or may become pregnant
- Clinician determines suitability
Important safety information
Contraindications
- Pregnancy and women who may become pregnant
- Hypersensitivity to finasteride
Warnings & precautions
- Can lower PSA values — inform providers performing prostate screening
- Reports of sexual side effects, depression, and suicidal thoughts
- Women who are or may be pregnant should not handle crushed or broken tablets
Common side effects
- Decreased libido, erectile dysfunction, ejaculation disorders
- Breast tenderness or enlargement
Drug interactions
- No major known drug interactions; review all medications with your clinician
Pregnancy
Contraindicated. Can cause birth defects in a male fetus.
Monitoring
Periodic review of response and side effects.
This summary is not complete. Review the full prescribing information and discuss risks with your clinician.
Treatment process
01
Evaluation
Secure assessment and clinician review.
02
Prescribing
Issued only if clinically appropriate.
03
Fulfillment
Through a licensed pharmacy, subject to availability.
04
Follow-up
Ongoing monitoring and support.
Frequently asked questions
What happens if I stop?
Hair gained is typically lost within about 12 months of stopping.
Is a compounded version the same as the FDA-approved product?
No. Compounded medications are not FDA-approved, have not been reviewed by the FDA for safety, effectiveness, or quality, and are not equivalent to approved products. They may only be prescribed when legally permitted and clinically appropriate.

