Is Vyvanse An Effective Treatment For Binge Eating Disorder?

Is vyvanse an effective treatment for binge eating disorder? Who would prescribe it? I have had binge eating disorder since childhood and struggle with it daily, lost much weight with diet, exercise and use of phentermine which controlled binging and over eating but it no longer works. I currently take phentermine qd, Prozac 20 mg qd, topamax 25 mg qd, tegretol 200 mg qd and Xanax 1.5 mg qhs. No health problems.