I read some of the reviews about Didrex and wondered if it was worth trying, as I tried phentermine 30mg (Acxion) once a day for about two weeks with no effects - no increase in energy and no weightless. Even my appetite felt the same. I realize two weeks was not much time as far as these things go, but I thought there would have been at least an increase in energy. So, was I sold something that contained very little of the active ingredient? Why did I not experience the same effects as everyone else? Should I try Didrex?