"this my second round with phentermine.  i tried it a couple of years ago and lost 20 pounds and have kept it off.  i decided i needed to lose 20 more, so i&#039;m back on it as of yesterday.  i&#039;m already down 2 pounds!   my appetite is virtually gone!  i feel really good and have so much energy!  the only down side is insomnia, but i can live with that as long as i&#039;m getting great results!"