Propecia Peaks at 2 Years?

hi dr,
just had a few questions about propecia and why its peek results are reached at 2 years. is it possible that it could continue the de-miniaturization process beyond that point for a young man such as myself at 21? i began taking it at an early 20. thank you for this informative blog and your response in advance.

We don’t know why results from Propecia (finasteride 1mg) peaks at the first 1 to 2 years, but it is an observation many doctors and patients have made. With that said, it does not mean the medication stops working or is less effective after that time frame.

For the few who see more balding after years on Propecia, I have been advising that they consider increasing the dose to 2mg daily provided that there are no sexual side effects. Of those whom I’ve given this recommendation, none have reported sexual side effects. Please remember, I’m not your doctor and I’m not recommending this to anyone here.