Qsymia - Is Qysmia effective after phentermine stops working?

I have been on and off phentermine (adipex) for a few years. I do well at the "very" beginning of starting it. But then I seem to build an immunity up to it in only about a week or two... I went to my Physician just a week ago and shared my frustrations with him... He told me he has one other patient that was experiencing the exact same thing... So he wanted her to try qsymia (the FDA had just ok'd it). He said she did "very well" and was so vey excited about her results... I am hopefully going to be getting mine to start, this week... My insurance company wanted a prior-authorization and the pharmacy had to order some in... Hope that helps you make your decision. I just try to keep thinking of & stay focused on, those individuals that have struggled with weight forever and because they never give up, they eventually find something that helps them... They get thin and they keep it off. I just hope this product is my calling! This weight thing, is fairly new to me... I have been very tiny, my entire life, except for now. So I am "determined" and I am going to "stay determined"... Al the best to you!