There's been no long term (>10 yrs) results as to the long term side effects. Btw, if anyone thinks the FDA is a credible organisation, think again. There are tons of drugs being recalled all the time, with some infamous cases (shall not dig up, but easily found on google) of drugs causing heart attacks, and then later being recalled. The FDA cares more about making money than it does for anyone's health.
PostCountWarrior[+1]: Cos propecia can give better overall results for a patient's HT. As i've said in an earlier post, just read up online about DHT and what it really does in the male body. Put it this way, the body does not recognize hair loss as an 'illness'. It's simply our genes responding in a bad way to DHT. So it's not some sort of 'evil hormone'. DHT plays a critical role in the development of the male genital. I am not trying to scare anyone here. Just go read for yourself. At the end of the day, if your dick goes limp, Merck/FDA/insert any other drug organisation is not gonna be the ones suffering for it. It's your own body, so be sure to take utmost care
I said it in an earlier post.. but think it's better to say it again. Hair transplants are not a cure for hair loss. The hair you transplant might not bald, but the areas BEHIND the transplanted part will recede eventually (unless you're some sort of super responder to propecia, which 99% of guys are not and eventually end up thinning out anyway). So you will always be playing catch-up to your hair loss, by going for more and more transplants, unless you don't mind a frankenstein look with only the hairline with some hair and a bald patch directly behind it.
The donor area is limited, so there will eventually come a day when there's no more hair available to transplant. And of course, the cost is astronomical. Even if you go thailand for a HT with a doc like Dr Pathomavich (good credentials on the hair restoration site), you're looking at easily 9k and above for one session of 2k+ grafts. There are, of course, tons of cheaper docs around, but you don't know the quality of their work, so why risk it?
Long story cut short, hair transplants aren't THE solution and will never be