"female 37 yrs w starting wt 263/ending wt 230.  was on phentermine 37.5 for 3 months. lost 15lbs first month, 10 second, and 8 the last month.  only dealt w jitteriness, insomnia, dry mouth for the first 2 weeks. i made sure to take pill early and would take a half pill periodically if side effects were bothersome. by the end of first month side effects were gone except for constipation,  and i was able to maintain 1400-1600 calorie per day goal. around week 7 or 8, i noted that my appetite was not very suppressed, so i would eat breakfast, and take pill 30 minutes before lunch. this seemed to boost the appetite suppression for me. i walked 4-5 miles about twice a week. hoping to continue diet and wt loss after stopping phentermine."