"today is day 8 on  phentermine 37.5 only taking half of the pill, i have lost 6 pounds.  i had trouble sleeping first few nights and i was jittery on and off.  dry mouth isn&#039;t to bad as i am drinking lots of water, no appetite but i am making sure i eat small meals protein and vegetables.  i was really nervous about this medicine a few years ago hearing horror stories with phen phen.  i look forward to seeing what my weight loss will be in 6 more days that is my next weigh in."