I've commented in a celeb thread that I know someone on it. It is often prescribed off label, and will likely become an approved drug to treat obesity, although I believe one company has been approved already.
Obesity causes many fatal health related problems including diabetes and heart disease, for these reasons I have no problem seeing it prescribed off label. My friend has lost nearly 100# on it; she's an RN and licensed esthetician and is married to an MD, they prescribe it under careful care with monthly appointments, labs etc. . . Her only side affect was she couldn't eat savory foods in full portions any more, it killed her appetite. She was happy to report she did not lose her taste for wine lol
From what I understand, it's actually not a life saving prescription for diabetics, although it was initially developed for them.
That said, Kyle has denied she's on it, and I couldn't care less how she lost some weight lol. Just wanted to add my 2c