Well, if a doctor recomends it, people might try it before figuring out how bad it can be.
I had a friend who was forever taunted for how short he was. He was very immature both physically and mentally. Then, a few years ago, he shot up, and went from a little 4 foot teenager who looked 8 years old kid into the teenager he was supposed to be. The transformation was amazing. I asked him a few months ago why he isn't short or anything.
It turns out he was on ritelin. As soon as he got off of it, he started growing as he was supposed to. You can definitely tell that it has had a very negative effect on his physical self, and his mental self isn't as good as I know it could have been. That's just one of the reasons why I'm not a fan of ritelin.
As always- None of my statements are evaluated by the FDA.
My advice is not intended to diagnose, treat, cure or prevent any diseases unless prescribed by a health practitioner. All information is provided for educational purposes only and should not replace the advice of your medical doctor.
(but your medical doctor will probably end up killing you