"i am 23 years old, 5&#039;8&#039;&#039;. i started phentermine sept. 25th at 255 pounds. i have been working out way before i started the pill and had lost about 20 pounds but then hit a plateau for about a month. i still workout everyday and replace breakfast and dinner with natural fruit shakes, any fruit i like just add water, protein, for lunch i have a salad with any meat cooked with no oils. i drink plenty of water and workout for about 1 1/2hrs 6 days a week. today is day 6 on the pill and i weigh in at 248.2lbs. 
the only negative side effect is some insomnia."