I have a bud whose been on it and claims he needs it to function. His current doc wont perscribe it for him anymore (why I dont know) so hes going to someone who'll give it to him. Im wondering if this stuff can be harmful for you because Im worried about the guy. I dont know why he needs it, he goes to work everyday, pays his bill, takes care of his pets, etc so maybe its in his head that he needs it ? Theres got to be a reason why his current doc is not giving it to him.