I know that many people said- go for it, but, my only problem are my temples... I am only 19 years old, and I am very affraid of propecia, because, I don't know if it can hurt my body in development ... I mean, DHT isn't somethnig without cause...
propecia will likely stop further recession of your temples but don't be too optimistic about getting those back. it's possible but it really works better on the top and crown than it does on the temples.
I doubt finasteride will affect you in a way enough to affect your development in a big way. Your doctor will know what's best, so have a talk to him/her about it.
It sucks to lose hair at a young age, but at least you're catching it early.
dont talk to your doctor. they usually know nothing about male pattern baldness. just dont take finasteride if u have liver problems. otherwise, its certainly worty a try! if u get sides, which u probably wont, just stop.