"started phentermine 30mg on 1/7/11, as of today, 2/12/11 i have lost 21 pounds. i lost 8 pounds in the first two days a i was so sick to my stomach. i never had a loss of appetite or increase in energy, just the dry mouth, which i still get today, but only right after taking the pill. i did read that you have to change your eating habits so i decided on the first day to start calorie counting. i started with 1800 calories and have decreased it by 50 each week. now at 1550 calories and still losing weight, although much slower now. once i finish my second month i will probably stop for about a week and then see if my doctor will prescribe for 2 more months. i would like to try the 37.5 next time though. we will see what he says. goal-100lbs!"