Finasteride is the most effective FDA-approved medication for treating male pattern hair loss. This comprehensive guide covers everything you need to know.
What is Finasteride?
Finasteride (brand name Propecia) is a prescription medication that blocks the enzyme 5-alpha-reductase, which converts testosterone to DHT. Since DHT causes hair follicle miniaturization, reducing DHT levels can halt hair loss and promote regrowth.
How Effective is Finasteride?
- 83% of men maintained their existing hair after 2 years
- 66% of men experienced visible hair regrowth
- Hair count increased by an average of 107 hairs per square inch
Recommended Dosage
The standard dose for hair loss is 1mg daily, taken with or without food at any time of day.
Side Effects
- Sexual side effects (1-2%): decreased libido, erectile dysfunction
- Breast tenderness (rare)
- Most side effects resolve upon discontinuation
Results Timeline
- 1-3 months: Initial shedding may occur
- 3-6 months: Reduced hair loss, early regrowth
- 6-12 months: Visible improvement
- 12+ months: Maximum results
Medical Disclaimer
This information is for educational purposes only. Always consult with a healthcare provider before starting any medication.
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