"i started taking phentermine on 7/18/15 and today 9/17/15 i am down 30 lbs.  from 296 to 266!  i am doing it in conjunction with my fitness pal.  this way i know how many calories i intake.  walking a bit but no major exercise program yet.  the only side effect is the dry mouth so i keep mints around to help and drink something.  i really recommend you track your food intake....that&#039;s the only way you are going to be able to know you are eating the right amount.  it&#039;s so easy on your smartphone too!"