"i am a 5&#039;4&quot;, 29-year-old female. on my own with only exercise (3-4 days/week) and a healthy diet of 1250-1350 calories/day, i lost 90 lbs.  i started at 248 lbs. when i was 22 and hit 158 lbs. by the time i was 25. however, in 2008, i started to gain some back. i got up to 190 and went to talk to my doctor. in february of 2009, my doctor started me on phentermine 37.5 and from 2/1-5/1, i was able to lose 35 lbs. with the same calorie intake and exercise as before. i loved it and was so happy with my results. i kept the weight off very easily over the last 2 years by watching what i eat and continuing to exercise. now, however, after recently going through a divorce, i got up to 178. i am hoping to lose at least 25 lbs. this time."