Average Amount of Time for Propecia to Maintain Results?

I’m a 34 year old male with a norwood class 2 hairline. Most of the recession I’ve had was between the ages of 17-25 years old. The hairline has remained pretty much the same from 25 till now. I’ve always noticed some very minor thinning around the hairline probably not going back for more than 1-2cm (approx 1/4 inch)and it really hasn’t got too much thinner in recent years. A handful of intermediate/smaller hairs around the frontal edges and where the juvenile hairline used to be have gotten shorter over several years. I’ll probably get the scalp mapped for miniaturization to get a diagnosis of MPB or paranoia.

Assuming a diagnosis of male patterned baldness, I’m just wondering how effective Propecia is for men in their 30’s and 40’s for maintaining hair (not necessarily regrowing/thickening)? From your clinical experience what is the average time (years) before Propecia starts to lose its effectiveness (hair count starts to decline below baseline) for a man in this age group? Also since my thinning is extremely slow…would that also allow it to be effective for a longer period of time?

Thanks

For some men, I have seen regrowth that has lasted 10+ years with no loss of hair. On others, the drug has not worked as well. I have seen men with bald crowns regrow hair and men with slow loss and thinning crown areas with no benefit from Propecia. The best indicator usually is crown loss in young men, where the loss is mild and the scalp has many miniaturized hairs present.

Merck’s data shows that 90% of men studied in your age bracket still had benefits after year 5. You can find that here.